./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/terminator_02-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c 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/loops/terminator_02-1.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 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:58:38,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:58:38,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:58:38,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:58:38,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:58:38,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:58:38,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:58:38,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:58:38,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:58:38,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:58:38,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:58:38,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:58:38,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:58:38,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:58:38,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:58:38,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:58:38,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:58:38,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:58:38,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:58:38,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:58:38,285 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:58:38,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:58:38,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:58:38,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:58:38,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:58:38,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:58:38,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:58:38,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:58:38,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:58:38,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:58:38,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:58:38,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:58:38,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:58:38,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:58:38,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:58:38,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:58:38,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:58:38,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:58:38,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:58:38,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:58:38,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:58:38,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:58:38,306 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-13 03:58:38,333 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:58:38,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:58:38,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:58:38,338 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:58:38,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:58:38,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:58:38,340 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:58:38,341 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:58:38,341 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:58:38,342 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:58:38,342 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:58:38,342 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:58:38,342 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:58:38,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:58:38,343 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 03:58:38,343 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:58:38,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:58:38,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 03:58:38,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:58:38,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:58:38,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:58:38,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:58:38,344 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 03:58:38,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:58:38,345 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:58:38,345 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:58:38,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:58:38,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:58:38,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:58:38,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:58:38,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:58:38,347 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:58:38,347 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b [2022-07-13 03:58:38,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:58:38,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:58:38,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:58:38,655 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:58:38,656 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:58:38,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/terminator_02-1.c [2022-07-13 03:58:38,725 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7eb41e0c0/f66b2dc0a496497e9700fde528aeb6bd/FLAGe4e441529 [2022-07-13 03:58:39,177 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:58:39,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-1.c [2022-07-13 03:58:39,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7eb41e0c0/f66b2dc0a496497e9700fde528aeb6bd/FLAGe4e441529 [2022-07-13 03:58:39,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7eb41e0c0/f66b2dc0a496497e9700fde528aeb6bd [2022-07-13 03:58:39,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:58:39,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:58:39,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:58:39,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:58:39,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:58:39,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@855c7ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39, skipping insertion in model container [2022-07-13 03:58:39,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:58:39,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:58:39,364 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/loops/terminator_02-1.c[327,340] [2022-07-13 03:58:39,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:58:39,384 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:58:39,394 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/loops/terminator_02-1.c[327,340] [2022-07-13 03:58:39,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:58:39,412 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:58:39,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39 WrapperNode [2022-07-13 03:58:39,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:58:39,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:58:39,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:58:39,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:58:39,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,442 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2022-07-13 03:58:39,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:58:39,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:58:39,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:58:39,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:58:39,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:58:39,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:58:39,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:58:39,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:58:39,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:39,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:39,509 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) [2022-07-13 03:58:39,537 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 [2022-07-13 03:58:39,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 03:58:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 03:58:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:58:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:58:39,610 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:58:39,612 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:58:39,746 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:58:39,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:58:39,754 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 03:58:39,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:58:39 BoogieIcfgContainer [2022-07-13 03:58:39,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:58:39,763 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:58:39,763 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:58:39,770 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:58:39,770 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:58:39,771 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:58:39" (1/3) ... [2022-07-13 03:58:39,772 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b8fc054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:58:39, skipping insertion in model container [2022-07-13 03:58:39,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:58:39,772 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (2/3) ... [2022-07-13 03:58:39,772 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b8fc054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:58:39, skipping insertion in model container [2022-07-13 03:58:39,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:58:39,773 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:58:39" (3/3) ... [2022-07-13 03:58:39,774 INFO L354 chiAutomizerObserver]: Analyzing ICFG terminator_02-1.c [2022-07-13 03:58:39,828 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:58:39,828 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:58:39,828 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:58:39,829 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:58:39,829 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:58:39,829 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:58:39,829 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:58:39,829 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:58:39,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2022-07-13 03:58:39,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:58:39,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:58:39,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:58:39,864 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:58:39,864 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:58:39,864 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:58:39,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2022-07-13 03:58:39,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:58:39,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:58:39,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:58:39,868 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:58:39,868 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:58:39,874 INFO L752 eck$LassoCheckResult]: Stem: 3#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(18, 2);call #Ultimate.allocInit(12, 3); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~post8#1, main_#t~post9#1, main_#t~post10#1, main_~tmp~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 5#L23-2true [2022-07-13 03:58:39,874 INFO L754 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!(main_~x~0#1 < 100 && 100 < main_~z~0#1);main_~tmp~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 8#L23true assume !(0 != main_~tmp~0#1 % 256);main_#t~post9#1 := main_~x~0#1;main_~x~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1;main_#t~post10#1 := main_~z~0#1;main_~z~0#1 := main_#t~post10#1 - 1;havoc main_#t~post10#1; 5#L23-2true [2022-07-13 03:58:39,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:39,882 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-13 03:58:39,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:39,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007469259] [2022-07-13 03:58:39,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:39,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:39,979 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:40,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:40,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-07-13 03:58:40,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:40,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78801890] [2022-07-13 03:58:40,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:40,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,050 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:40,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:40,076 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-07-13 03:58:40,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:40,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533346699] [2022-07-13 03:58:40,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:40,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,099 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:40,207 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:40,208 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:40,208 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:40,208 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:40,208 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:58:40,208 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:40,209 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:40,209 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2022-07-13 03:58:40,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:40,209 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:40,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,388 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:40,388 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:58:40,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,403 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) [2022-07-13 03:58:40,410 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 [2022-07-13 03:58:40,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:40,412 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:40,430 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:58:40,430 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post9#1=0} Honda state: {ULTIMATE.start_main_#t~post9#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:58:40,447 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 [2022-07-13 03:58:40,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,449 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) [2022-07-13 03:58:40,456 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:40,456 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:40,474 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 [2022-07-13 03:58:40,488 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:58:40,488 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0#1=-256, ULTIMATE.start_main_#t~nondet7#1=-256} Honda state: {ULTIMATE.start_main_~tmp~0#1=-256, ULTIMATE.start_main_#t~nondet7#1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:58:40,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:40,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,517 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:40,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:40,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:40,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-13 03:58:40,549 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:58:40,549 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post10#1=0} Honda state: {ULTIMATE.start_main_#t~post10#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:58:40,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:40,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,573 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2022-07-13 03:58:40,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-13 03:58:40,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:40,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:40,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:40,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,611 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2022-07-13 03:58:40,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-13 03:58:40,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:58:40,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:40,643 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:58:40,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:40,650 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:40,650 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:40,650 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:40,650 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:40,650 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:58:40,650 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,650 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:40,650 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:40,650 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2022-07-13 03:58:40,650 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:40,650 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:40,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,798 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:40,801 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:58:40,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,814 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2022-07-13 03:58:40,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-13 03:58:40,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:58:40,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:40,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:40,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:40,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:40,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:40,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:40,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:40,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:58:40,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:40,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,885 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2022-07-13 03:58:40,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-13 03:58:40,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:58:40,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:40,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:40,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:40,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:40,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:40,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:40,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:40,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:58:40,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-13 03:58:40,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,921 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2022-07-13 03:58:40,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-13 03:58:40,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:58:40,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:40,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:40,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:40,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:40,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:40,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:40,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:40,965 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:58:40,972 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:58:40,972 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:58:40,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,979 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2022-07-13 03:58:41,000 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:58:41,000 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:58:41,000 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:58:41,001 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2022-07-13 03:58:41,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-13 03:58:41,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:41,020 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:58:41,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:41,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:58:41,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:41,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:58:41,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:58:41,139 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:58:41,140 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:41,203 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 54 transitions. Complement of second has 7 states. [2022-07-13 03:58:41,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:58:41,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:41,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2022-07-13 03:58:41,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-13 03:58:41,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:41,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-13 03:58:41,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:41,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-13 03:58:41,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:41,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2022-07-13 03:58:41,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:58:41,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 9 states and 12 transitions. [2022-07-13 03:58:41,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-13 03:58:41,227 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-13 03:58:41,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2022-07-13 03:58:41,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:58:41,228 INFO L369 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-07-13 03:58:41,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2022-07-13 03:58:41,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2022-07-13 03:58:41,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2022-07-13 03:58:41,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-07-13 03:58:41,251 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-13 03:58:41,251 INFO L374 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-13 03:58:41,251 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:58:41,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-07-13 03:58:41,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:58:41,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:58:41,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:58:41,257 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:58:41,257 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:58:41,257 INFO L752 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY 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(18, 2);call #Ultimate.allocInit(12, 3); 95#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~post8#1, main_#t~post9#1, main_#t~post10#1, main_~tmp~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 101#L23-2 assume !!(main_~x~0#1 < 100 && 100 < main_~z~0#1);main_~tmp~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 97#L23 [2022-07-13 03:58:41,258 INFO L754 eck$LassoCheckResult]: Loop: 97#L23 assume 0 != main_~tmp~0#1 % 256;main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 96#L23-2 assume !!(main_~x~0#1 < 100 && 100 < main_~z~0#1);main_~tmp~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 97#L23 [2022-07-13 03:58:41,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:41,259 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-13 03:58:41,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:41,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114118222] [2022-07-13 03:58:41,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:41,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:41,291 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:41,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:41,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:41,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-07-13 03:58:41,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:41,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263481395] [2022-07-13 03:58:41,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:41,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:41,310 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:41,317 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:41,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:41,318 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2022-07-13 03:58:41,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:41,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727799292] [2022-07-13 03:58:41,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:41,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:41,329 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:41,347 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:41,409 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:41,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:41,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:41,409 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:41,410 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:58:41,410 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,410 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:41,410 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:41,410 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2022-07-13 03:58:41,410 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:41,410 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:41,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:41,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,508 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:41,508 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:58:41,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,512 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2022-07-13 03:58:41,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:41,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-13 03:58:41,560 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:58:41,560 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0#1=128, ULTIMATE.start_main_#t~nondet7#1=128} Honda state: {ULTIMATE.start_main_~tmp~0#1=128, ULTIMATE.start_main_#t~nondet7#1=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:58:41,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:41,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,589 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2022-07-13 03:58:41,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:41,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-13 03:58:41,615 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:58:41,616 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=101} Honda state: {ULTIMATE.start_main_~z~0#1=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:58:41,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:41,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,644 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2022-07-13 03:58:41,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-13 03:58:41,649 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:41,649 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:41,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,699 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2022-07-13 03:58:41,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-13 03:58:41,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:58:41,705 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:42,579 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:58:42,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-07-13 03:58:42,584 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:42,584 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:42,584 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:42,584 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:42,584 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:58:42,584 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:42,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:42,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:42,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2022-07-13 03:58:42,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:42,585 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:42,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:42,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:42,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:42,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:42,694 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:42,694 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:58:42,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:42,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:42,696 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2022-07-13 03:58:42,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-13 03:58:42,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:58:42,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:42,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:42,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:42,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:42,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:42,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:42,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:42,724 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:58:42,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:42,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:42,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:42,751 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2022-07-13 03:58:42,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-13 03:58:42,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:58:42,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:42,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:42,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:42,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:42,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:42,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:42,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:42,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:58:42,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:42,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:42,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:42,789 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2022-07-13 03:58:42,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-13 03:58:42,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:58:42,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:42,797 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:42,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:42,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:42,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:42,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:42,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:42,819 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:58:42,832 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:58:42,832 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:58:42,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:42,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:42,834 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2022-07-13 03:58:42,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-13 03:58:42,840 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:58:42,840 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:58:42,841 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:58:42,841 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 197 Supporting invariants [] [2022-07-13 03:58:42,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:42,859 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:58:42,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:42,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:58:42,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:42,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:58:42,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:42,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:58:42,941 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:58:42,942 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-07-13 03:58:42,965 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 20 transitions. Complement of second has 5 states. [2022-07-13 03:58:42,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:58:42,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-07-13 03:58:42,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-07-13 03:58:42,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-13 03:58:42,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:42,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-13 03:58:42,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:42,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-13 03:58:42,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:42,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2022-07-13 03:58:42,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:58:42,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2022-07-13 03:58:42,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-13 03:58:42,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-13 03:58:42,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-07-13 03:58:42,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:58:42,972 INFO L369 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-07-13 03:58:42,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-07-13 03:58:42,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2022-07-13 03:58:42,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-07-13 03:58:42,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2022-07-13 03:58:42,975 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-07-13 03:58:42,976 INFO L374 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-07-13 03:58:42,976 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:58:42,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2022-07-13 03:58:42,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:58:42,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:58:42,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:58:42,977 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2022-07-13 03:58:42,977 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:58:42,977 INFO L752 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRY 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(18, 2);call #Ultimate.allocInit(12, 3); 154#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~post8#1, main_#t~post9#1, main_#t~post10#1, main_~tmp~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 155#L23-2 assume !!(main_~x~0#1 < 100 && 100 < main_~z~0#1);main_~tmp~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 156#L23 assume !(0 != main_~tmp~0#1 % 256);main_#t~post9#1 := main_~x~0#1;main_~x~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1;main_#t~post10#1 := main_~z~0#1;main_~z~0#1 := main_#t~post10#1 - 1;havoc main_#t~post10#1; 160#L23-2 assume !!(main_~x~0#1 < 100 && 100 < main_~z~0#1);main_~tmp~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 158#L23 [2022-07-13 03:58:42,978 INFO L754 eck$LassoCheckResult]: Loop: 158#L23 assume 0 != main_~tmp~0#1 % 256;main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 159#L23-2 assume !!(main_~x~0#1 < 100 && 100 < main_~z~0#1);main_~tmp~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 158#L23 [2022-07-13 03:58:42,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:42,978 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2022-07-13 03:58:42,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:42,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940139290] [2022-07-13 03:58:42,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:42,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:43,001 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:43,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:43,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:43,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2022-07-13 03:58:43,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:43,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459845230] [2022-07-13 03:58:43,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:43,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:43,030 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:43,039 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:43,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:43,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 1 times [2022-07-13 03:58:43,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:43,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259066178] [2022-07-13 03:58:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:43,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:43,058 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:43,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:43,100 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:43,100 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:43,100 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:43,100 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:43,101 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:58:43,101 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:43,101 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:43,101 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:43,101 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2022-07-13 03:58:43,101 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:43,101 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:43,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:43,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:43,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:43,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:43,191 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:43,191 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:58:43,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:43,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:43,196 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2022-07-13 03:58:43,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-13 03:58:43,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:43,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:43,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:43,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:43,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:43,251 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2022-07-13 03:58:43,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-13 03:58:43,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:58:43,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:44,103 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:58:44,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:44,107 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:44,107 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:44,107 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:44,107 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:44,107 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:58:44,107 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:44,107 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:44,107 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:44,107 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2022-07-13 03:58:44,107 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:44,107 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:44,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:44,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:44,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:44,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:44,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:44,222 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:44,223 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:58:44,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:44,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:44,228 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2022-07-13 03:58:44,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:58:44,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-13 03:58:44,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:44,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:44,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:44,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:44,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:44,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:44,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:44,266 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:58:44,272 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:58:44,273 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:58:44,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:44,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:44,275 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2022-07-13 03:58:44,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-13 03:58:44,278 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:58:44,278 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:58:44,278 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:58:44,278 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 197 Supporting invariants [] [2022-07-13 03:58:44,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:44,306 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:58:44,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:44,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:58:44,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:44,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:58:44,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:44,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:58:44,361 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:58:44,361 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:44,384 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 5 states. [2022-07-13 03:58:44,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:58:44,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:44,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-07-13 03:58:44,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-13 03:58:44,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:44,390 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:58:44,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:44,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:58:44,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:44,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:58:44,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:44,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:58:44,443 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:58:44,443 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:44,456 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 5 states. [2022-07-13 03:58:44,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:58:44,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-07-13 03:58:44,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-13 03:58:44,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:44,458 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:58:44,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:44,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:58:44,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:44,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:58:44,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:44,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:58:44,497 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:58:44,497 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:44,512 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 4 states. [2022-07-13 03:58:44,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:58:44,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:44,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2022-07-13 03:58:44,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-13 03:58:44,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:44,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2022-07-13 03:58:44,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:44,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2022-07-13 03:58:44,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:44,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2022-07-13 03:58:44,515 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:58:44,515 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2022-07-13 03:58:44,515 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 03:58:44,515 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 03:58:44,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 03:58:44,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:58:44,515 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:58:44,516 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:58:44,516 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:58:44,516 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 03:58:44,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 03:58:44,516 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:58:44,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 03:58:44,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:58:44 BoogieIcfgContainer [2022-07-13 03:58:44,522 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:58:44,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:58:44,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:58:44,523 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:58:44,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:58:39" (3/4) ... [2022-07-13 03:58:44,525 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 03:58:44,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:58:44,526 INFO L158 Benchmark]: Toolchain (without parser) took 5320.11ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 68.0MB in the beginning and 83.1MB in the end (delta: -15.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-07-13 03:58:44,527 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:58:44,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.49ms. Allocated memory is still 104.9MB. Free memory was 67.8MB in the beginning and 57.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-13 03:58:44,527 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.71ms. Allocated memory is still 104.9MB. Free memory was 57.6MB in the beginning and 56.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:58:44,528 INFO L158 Benchmark]: Boogie Preprocessor took 27.29ms. Allocated memory is still 104.9MB. Free memory was 56.2MB in the beginning and 55.3MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:58:44,528 INFO L158 Benchmark]: RCFGBuilder took 289.95ms. Allocated memory is still 104.9MB. Free memory was 55.2MB in the beginning and 75.6MB in the end (delta: -20.4MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-07-13 03:58:44,529 INFO L158 Benchmark]: BuchiAutomizer took 4758.83ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 75.4MB in the beginning and 83.9MB in the end (delta: -8.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 03:58:44,529 INFO L158 Benchmark]: Witness Printer took 3.23ms. Allocated memory is still 125.8MB. Free memory was 83.9MB in the beginning and 83.1MB in the end (delta: 745.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:58:44,532 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.49ms. Allocated memory is still 104.9MB. Free memory was 67.8MB in the beginning and 57.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.71ms. Allocated memory is still 104.9MB. Free memory was 57.6MB in the beginning and 56.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.29ms. Allocated memory is still 104.9MB. Free memory was 56.2MB in the beginning and 55.3MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 289.95ms. Allocated memory is still 104.9MB. Free memory was 55.2MB in the beginning and 75.6MB in the end (delta: -20.4MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4758.83ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 75.4MB in the beginning and 83.9MB in the end (delta: -8.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.23ms. Allocated memory is still 125.8MB. Free memory was 83.9MB in the beginning and 83.1MB in the end (delta: 745.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function z and consists of 5 locations. One deterministic module has affine ranking function 197 + -2 * x and consists of 3 locations. One nondeterministic module has affine ranking function 197 + -2 * x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 4.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 29 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp46 ukn100 mio100 lsp100 div447 bol100 ite100 ukn100 eq150 hnf95 smp41 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 63ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 03:58:44,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-07-13 03:58:44,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE