./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label18.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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/eca-rers2012/Problem15_label18.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 5c095fadf59684254d69cca06d3c4bb1b9fa7c0b1f04f6f3052257e0be0a70d1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:10:09,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:10:09,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:10:09,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:10:09,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:10:09,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:10:09,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:10:09,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:10:09,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:10:09,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:10:09,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:10:09,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:10:09,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:10:09,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:10:09,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:10:09,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:10:09,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:10:09,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:10:09,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:10:09,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:10:09,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:10:09,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:10:09,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:10:09,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:10:09,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:10:09,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:10:09,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:10:09,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:10:09,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:10:09,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:10:09,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:10:09,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:10:09,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:10:09,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:10:09,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:10:09,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:10:09,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:10:09,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:10:09,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:10:09,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:10:09,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:10:09,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:10:09,364 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:10:09,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:10:09,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:10:09,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:10:09,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:10:09,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:10:09,367 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:10:09,367 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:10:09,367 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:10:09,367 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:10:09,367 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:10:09,368 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:10:09,368 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:10:09,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:10:09,368 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:10:09,368 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:10:09,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:10:09,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:10:09,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:10:09,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:10:09,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:10:09,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:10:09,370 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:10:09,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:10:09,370 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:10:09,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:10:09,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:10:09,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:10:09,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:10:09,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:10:09,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:10:09,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:10:09,373 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:10:09,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c095fadf59684254d69cca06d3c4bb1b9fa7c0b1f04f6f3052257e0be0a70d1 [2021-12-22 20:10:09,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:10:09,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:10:09,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:10:09,653 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:10:09,653 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:10:09,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label18.c [2021-12-22 20:10:09,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f97eaf887/64046432dff5414287c26c8c7d387c0b/FLAG8f5eebfd5 [2021-12-22 20:10:10,268 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:10:10,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label18.c [2021-12-22 20:10:10,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f97eaf887/64046432dff5414287c26c8c7d387c0b/FLAG8f5eebfd5 [2021-12-22 20:10:10,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f97eaf887/64046432dff5414287c26c8c7d387c0b [2021-12-22 20:10:10,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:10:10,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:10:10,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:10:10,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:10:10,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:10:10,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:10:10" (1/1) ... [2021-12-22 20:10:10,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ed3b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:10, skipping insertion in model container [2021-12-22 20:10:10,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:10:10" (1/1) ... [2021-12-22 20:10:10,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:10:10,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:10:10,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label18.c[1259,1272] [2021-12-22 20:10:11,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:10:11,177 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:10:11,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label18.c[1259,1272] [2021-12-22 20:10:11,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:10:11,399 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:10:11,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:11 WrapperNode [2021-12-22 20:10:11,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:10:11,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:10:11,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:10:11,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:10:11,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:11" (1/1) ... [2021-12-22 20:10:11,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:11" (1/1) ... [2021-12-22 20:10:11,604 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1755 [2021-12-22 20:10:11,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:10:11,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:10:11,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:10:11,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:10:11,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:11" (1/1) ... [2021-12-22 20:10:11,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:11" (1/1) ... [2021-12-22 20:10:11,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:11" (1/1) ... [2021-12-22 20:10:11,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:11" (1/1) ... [2021-12-22 20:10:11,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:11" (1/1) ... [2021-12-22 20:10:11,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:11" (1/1) ... [2021-12-22 20:10:11,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:11" (1/1) ... [2021-12-22 20:10:11,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:10:11,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:10:11,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:10:11,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:10:11,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:11" (1/1) ... [2021-12-22 20:10:11,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:10:11,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:10:11,824 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) [2021-12-22 20:10:11,832 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 [2021-12-22 20:10:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:10:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:10:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:10:11,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:10:11,971 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:10:11,973 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:10:14,559 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:10:14,574 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:10:14,574 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 20:10:14,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:10:14 BoogieIcfgContainer [2021-12-22 20:10:14,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:10:14,578 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:10:14,578 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:10:14,581 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:10:14,582 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:10:14,582 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:10:10" (1/3) ... [2021-12-22 20:10:14,583 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bf91cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:10:14, skipping insertion in model container [2021-12-22 20:10:14,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:10:14,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:11" (2/3) ... [2021-12-22 20:10:14,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bf91cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:10:14, skipping insertion in model container [2021-12-22 20:10:14,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:10:14,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:10:14" (3/3) ... [2021-12-22 20:10:14,585 INFO L388 chiAutomizerObserver]: Analyzing ICFG Problem15_label18.c [2021-12-22 20:10:14,629 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:10:14,629 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:10:14,629 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:10:14,629 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:10:14,630 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:10:14,630 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:10:14,630 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:10:14,630 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:10:14,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 423 states, 422 states have (on average 1.7748815165876777) internal successors, (749), 422 states have internal predecessors, (749), 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) [2021-12-22 20:10:14,717 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 418 [2021-12-22 20:10:14,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:10:14,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:10:14,733 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 20:10:14,735 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:10:14,735 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:10:14,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 423 states, 422 states have (on average 1.7748815165876777) internal successors, (749), 422 states have internal predecessors, (749), 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) [2021-12-22 20:10:14,750 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 418 [2021-12-22 20:10:14,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:10:14,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:10:14,753 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 20:10:14,754 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:10:14,760 INFO L791 eck$LassoCheckResult]: Stem: 408#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3);~inputD~0 := 4;~inputB~0 := 2;~inputE~0 := 5;~inputA~0 := 1;~inputF~0 := 6;~inputC~0 := 3;~a4~0 := -89;~a29~0 := -127;~a2~0 := 1;~a0~0 := -44; 336#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1, main_~input~0#1, main_~output~0#1;main_~output~0#1 := -1; 171#L1776-2true [2021-12-22 20:10:14,761 INFO L793 eck$LassoCheckResult]: Loop: 171#L1776-2true assume !false;havoc main_~input~0#1;main_~input~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 319#L1781true assume !(((((1 != main_~input~0#1 && 2 != main_~input~0#1) && 3 != main_~input~0#1) && 4 != main_~input~0#1) && 5 != main_~input~0#1) && 6 != main_~input~0#1);assume { :begin_inline_calculate_output } true;calculate_output_#in~input#1 := main_~input~0#1;havoc calculate_output_#res#1;havoc calculate_output_#t~ret7#1, calculate_output_~input#1;calculate_output_~input#1 := calculate_output_#in~input#1; 111#L34true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -144 < ~a29~0 && -16 >= ~a29~0); 126#L34-2true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -16 < ~a29~0 && 43 >= ~a29~0); 348#L37-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && 43 < ~a29~0); 143#L40-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && ~a29~0 <= -144); 121#L43-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && ~a29~0 <= -144); 410#L46-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && ~a29~0 <= -144); 64#L49-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && 43 < ~a29~0); 390#L52-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && 43 < ~a29~0); 52#L55-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && 43 < ~a29~0); 209#L58-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && 43 < ~a29~0); 298#L61-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && ~a29~0 <= -144); 418#L64-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && ~a29~0 <= -144); 283#L67-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && 43 < ~a29~0); 112#L70-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && ~a29~0 <= -144); 179#L73-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 402#L76-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 180#L79-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 5#L82-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && ~a29~0 <= -144); 244#L85-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 70#L88-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 334#L91-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 53#L94-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 370#L97-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && 43 < ~a29~0); 359#L100-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 237#L103-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && 43 < ~a29~0); 67#L106-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -144 < ~a29~0 && -16 >= ~a29~0); 307#L109-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 354#L112-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 253#L115-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && 43 < ~a29~0); 247#L118-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && ~a29~0 <= -144); 295#L121-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && ~a29~0 <= -144); 24#L124-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && ~a29~0 <= -144); 373#L127-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 422#L130-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 355#L133-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && 43 < ~a29~0); 137#L136-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 98#L139-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 49#L142-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && 43 < ~a29~0); 40#L145-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -16 < ~a29~0 && 43 >= ~a29~0); 396#L148-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && ~a29~0 <= -144); 119#L151-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && 43 < ~a29~0); 183#L154-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 9#L157-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -16 < ~a29~0 && 43 >= ~a29~0); 120#L160-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 13#L163-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && 43 < ~a29~0); 160#L166-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -144 < ~a29~0 && -16 >= ~a29~0); 138#L169-1true assume !(((3 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 33#L172-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && 43 < ~a29~0); 188#L175-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -61 < ~a0~0) && ~a29~0 <= -144); 398#L178-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && ~a29~0 <= -144); 39#L181-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && 43 < ~a29~0); 308#L184-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && ~a29~0 <= -144); 388#L187-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && ~a29~0 <= -144); 384#L190-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -144 < ~a29~0 && -16 >= ~a29~0); 290#L193-1true assume !(((1 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -16 < ~a29~0 && 43 >= ~a29~0); 258#L196-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 198#L199-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -144 < ~a29~0 && -16 >= ~a29~0); 59#L202-1true assume !(((5 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -16 < ~a29~0 && 43 >= ~a29~0); 344#L205-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && ~a0~0 <= -147) && -16 < ~a29~0 && 43 >= ~a29~0); 134#L208-1true assume !(((4 == ~a2~0 && ~a4~0 <= -86) && -147 < ~a0~0 && -98 >= ~a0~0) && ~a29~0 <= -144); 399#L211-1true assume !(((2 == ~a2~0 && ~a4~0 <= -86) && -98 < ~a0~0 && -61 >= ~a0~0) && -144 < ~a29~0 && -16 >= ~a29~0); 270#L214-1true assume -61 < ~a0~0 && ~a4~0 <= -86 && 1 == calculate_output_~input#1 && ((3 == ~a2~0 && ~a29~0 <= -144) || (2 == ~a2~0 && -16 < ~a29~0 && 43 >= ~a29~0) || (43 < ~a29~0 && 2 == ~a2~0));~a0~0 := 5 * (if -300072 + (if ~a0~0 < 0 && 0 != ~a0~0 % 299926 then ~a0~0 % 299926 - 299926 else ~a0~0 % 299926) < 0 && 0 != (-300072 + (if ~a0~0 < 0 && 0 != ~a0~0 % 299926 then ~a0~0 % 299926 - 299926 else ~a0~0 % 299926)) % 5 then 1 + (-300072 + (if ~a0~0 < 0 && 0 != ~a0~0 % 299926 then ~a0~0 % 299926 - 299926 else ~a0~0 % 299926)) / 5 else (-300072 + (if ~a0~0 < 0 && 0 != ~a0~0 % 299926 then ~a0~0 % 299926 - 299926 else ~a0~0 % 299926)) / 5) - 2;~a29~0 := (if (if ~a29~0 < 0 && 0 != ~a29~0 % 5 then 1 + ~a29~0 / 5 else ~a29~0 / 5) - 403019 < 0 && 0 != ((if ~a29~0 < 0 && 0 != ~a29~0 % 5 then 1 + ~a29~0 / 5 else ~a29~0 / 5) - 403019) % 5 then 1 + ((if ~a29~0 < 0 && 0 != ~a29~0 % 5 then 1 + ~a29~0 / 5 else ~a29~0 / 5) - 403019) / 5 else ((if ~a29~0 < 0 && 0 != ~a29~0 % 5 then 1 + ~a29~0 / 5 else ~a29~0 / 5) - 403019) / 5);~a2~0 := 1;calculate_output_#res#1 := -1; 404#L1665true main_#t~ret9#1 := calculate_output_#res#1;assume { :end_inline_calculate_output } true;main_~output~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 171#L1776-2true [2021-12-22 20:10:14,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:10:14,766 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-22 20:10:14,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:10:14,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166774100] [2021-12-22 20:10:14,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:10:14,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:10:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:10:14,857 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:10:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:10:14,896 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:10:14,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:10:14,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1810396639, now seen corresponding path program 1 times [2021-12-22 20:10:14,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:10:14,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603415253] [2021-12-22 20:10:14,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:10:14,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:10:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:10:14,999 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:10:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:10:15,085 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:10:15,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:10:15,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1921383005, now seen corresponding path program 1 times [2021-12-22 20:10:15,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:10:15,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760612573] [2021-12-22 20:10:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:10:15,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:10:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:10:15,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:10:15,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:10:15,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760612573] [2021-12-22 20:10:15,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760612573] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:10:15,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:10:15,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 20:10:15,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562190591] [2021-12-22 20:10:15,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:10:16,473 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 20:10:16,473 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 20:10:16,474 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 20:10:16,474 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 20:10:16,474 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-22 20:10:16,474 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:10:16,474 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 20:10:16,474 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 20:10:16,475 INFO L133 ssoRankerPreferences]: Filename of dumped script: Problem15_label18.c_Iteration1_Loop [2021-12-22 20:10:16,475 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 20:10:16,475 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 20:10:16,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:10:16,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:10:16,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:10:16,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:10:16,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:10:16,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:10:16,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:10:17,506 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-12-22 20:10:19,452 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 20:10:19,453 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-22 20:10:19,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:10:19,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:10:19,457 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) [2021-12-22 20:10:19,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:10:19,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:10:19,472 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 [2021-12-22 20:10:22,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-22 20:10:22,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:10:22,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:10:22,985 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) [2021-12-22 20:10:22,994 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 [2021-12-22 20:10:22,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-22 20:10:22,995 INFO L160 nArgumentSynthesizer]: Using integer mode.