./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/terminator_02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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_02-2.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 894c556b0f4feb663ec35a01a2d06acf931df74aff57a717fa48cbd5e0bf347b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 18:34:18,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 18:34:18,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 18:34:18,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 18:34:18,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 18:34:18,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 18:34:18,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 18:34:18,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 18:34:18,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 18:34:18,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 18:34:18,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 18:34:18,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 18:34:18,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 18:34:18,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 18:34:18,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 18:34:18,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 18:34:18,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 18:34:18,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 18:34:18,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 18:34:18,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 18:34:18,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 18:34:18,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 18:34:18,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 18:34:18,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 18:34:18,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 18:34:18,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 18:34:18,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 18:34:18,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 18:34:18,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 18:34:18,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 18:34:18,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 18:34:18,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 18:34:18,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 18:34:18,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 18:34:18,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 18:34:18,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 18:34:18,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 18:34:18,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 18:34:18,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 18:34:18,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 18:34:18,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 18:34:18,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 18:34:18,433 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 18:34:18,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 18:34:18,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 18:34:18,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 18:34:18,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 18:34:18,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 18:34:18,439 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 18:34:18,439 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 18:34:18,439 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 18:34:18,439 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 18:34:18,440 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 18:34:18,440 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 18:34:18,440 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 18:34:18,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 18:34:18,441 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 18:34:18,441 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 18:34:18,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 18:34:18,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 18:34:18,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 18:34:18,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 18:34:18,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 18:34:18,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 18:34:18,442 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 18:34:18,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 18:34:18,442 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 18:34:18,442 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 18:34:18,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 18:34:18,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 18:34:18,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 18:34:18,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 18:34:18,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 18:34:18,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 18:34:18,444 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 18:34:18,444 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 894c556b0f4feb663ec35a01a2d06acf931df74aff57a717fa48cbd5e0bf347b [2021-12-19 18:34:18,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 18:34:18,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 18:34:18,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 18:34:18,668 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 18:34:18,668 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 18:34:18,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/terminator_02-2.c [2021-12-19 18:34:18,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed7131b88/8b12373e6ee84edbb466f9bc206aa782/FLAG9d1b12b32 [2021-12-19 18:34:19,023 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 18:34:19,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-2.c [2021-12-19 18:34:19,031 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed7131b88/8b12373e6ee84edbb466f9bc206aa782/FLAG9d1b12b32 [2021-12-19 18:34:19,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed7131b88/8b12373e6ee84edbb466f9bc206aa782 [2021-12-19 18:34:19,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 18:34:19,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 18:34:19,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 18:34:19,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 18:34:19,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 18:34:19,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:34:19" (1/1) ... [2021-12-19 18:34:19,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672f625b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19, skipping insertion in model container [2021-12-19 18:34:19,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:34:19" (1/1) ... [2021-12-19 18:34:19,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 18:34:19,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 18:34:19,562 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_02-2.c[414,427] [2021-12-19 18:34:19,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 18:34:19,573 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 18:34:19,580 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_02-2.c[414,427] [2021-12-19 18:34:19,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 18:34:19,590 INFO L208 MainTranslator]: Completed translation [2021-12-19 18:34:19,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19 WrapperNode [2021-12-19 18:34:19,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 18:34:19,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 18:34:19,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 18:34:19,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 18:34:19,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19" (1/1) ... [2021-12-19 18:34:19,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19" (1/1) ... [2021-12-19 18:34:19,609 INFO L137 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2021-12-19 18:34:19,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 18:34:19,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 18:34:19,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 18:34:19,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 18:34:19,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19" (1/1) ... [2021-12-19 18:34:19,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19" (1/1) ... [2021-12-19 18:34:19,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19" (1/1) ... [2021-12-19 18:34:19,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19" (1/1) ... [2021-12-19 18:34:19,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19" (1/1) ... [2021-12-19 18:34:19,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19" (1/1) ... [2021-12-19 18:34:19,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19" (1/1) ... [2021-12-19 18:34:19,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 18:34:19,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 18:34:19,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 18:34:19,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 18:34:19,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19" (1/1) ... [2021-12-19 18:34:19,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:19,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:19,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:34:19,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-19 18:34:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 18:34:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 18:34:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 18:34:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 18:34:19,725 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 18:34:19,726 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 18:34:19,862 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 18:34:19,866 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 18:34:19,866 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 18:34:19,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:34:19 BoogieIcfgContainer [2021-12-19 18:34:19,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 18:34:19,868 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 18:34:19,868 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 18:34:19,872 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 18:34:19,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 18:34:19,873 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 06:34:19" (1/3) ... [2021-12-19 18:34:19,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f69b078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 06:34:19, skipping insertion in model container [2021-12-19 18:34:19,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 18:34:19,874 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:19" (2/3) ... [2021-12-19 18:34:19,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f69b078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 06:34:19, skipping insertion in model container [2021-12-19 18:34:19,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 18:34:19,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:34:19" (3/3) ... [2021-12-19 18:34:19,876 INFO L388 chiAutomizerObserver]: Analyzing ICFG terminator_02-2.c [2021-12-19 18:34:19,909 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 18:34:19,909 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 18:34:19,909 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 18:34:19,909 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 18:34:19,909 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 18:34:19,910 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 18:34:19,910 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 18:34:19,910 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 18:34:19,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:19,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-19 18:34:19,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:34:19,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:34:19,977 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-19 18:34:19,977 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-19 18:34:19,978 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 18:34:19,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:19,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-19 18:34:19,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:34:19,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:34:19,980 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-19 18:34:19,980 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-19 18:34:19,984 INFO L791 eck$LassoCheckResult]: Stem: 5#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); 8#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~post7#1, main_#t~post8#1, main_#t~post9#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 9#L22true assume !!(main_~x~0#1 > -100); 12#L23true assume !!(main_~x~0#1 < 200); 13#L24true assume !!(main_~z~0#1 > 100); 6#L25true assume !!(main_~z~0#1 < 200); 17#L29-2true [2021-12-19 18:34:19,985 INFO L793 eck$LassoCheckResult]: Loop: 17#L29-2true assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 7#L29true assume 0 != main_~tmp~0#1 % 256;main_#t~post7#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 17#L29-2true [2021-12-19 18:34:19,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:19,988 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2021-12-19 18:34:19,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:19,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050126176] [2021-12-19 18:34:19,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:19,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:20,049 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:20,072 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:20,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:20,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 1 times [2021-12-19 18:34:20,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:20,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410942559] [2021-12-19 18:34:20,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:20,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:20,090 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:20,097 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:20,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:20,098 INFO L85 PathProgramCache]: Analyzing trace with hash 179567792, now seen corresponding path program 1 times [2021-12-19 18:34:20,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:20,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123235217] [2021-12-19 18:34:20,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:20,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:20,106 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:20,114 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:20,175 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 18:34:20,176 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 18:34:20,176 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 18:34:20,176 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 18:34:20,176 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 18:34:20,177 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:20,177 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 18:34:20,177 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 18:34:20,177 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2021-12-19 18:34:20,177 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 18:34:20,177 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 18:34:20,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:20,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:20,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:20,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:20,272 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 18:34:20,272 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 18:34:20,274 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:20,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:20,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:34:20,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-19 18:34:20,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:20,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:20,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-19 18:34:20,317 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:20,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:20,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:34:20,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-19 18:34:20,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 18:34:20,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:20,367 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 18:34:20,376 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 [2021-12-19 18:34:20,377 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 18:34:20,377 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 18:34:20,377 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 18:34:20,377 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 18:34:20,377 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 18:34:20,377 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:20,377 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 18:34:20,377 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 18:34:20,377 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2021-12-19 18:34:20,377 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 18:34:20,377 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 18:34:20,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:20,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:20,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:20,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:20,486 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 18:34:20,489 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 18:34:20,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:20,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:20,496 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) [2021-12-19 18:34:20,497 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 [2021-12-19 18:34:20,498 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 [2021-12-19 18:34:20,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:20,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:20,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:20,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:20,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:20,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:20,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:20,539 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 18:34:20,544 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 18:34:20,544 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-19 18:34:20,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:20,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:20,546 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) [2021-12-19 18:34:20,547 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 [2021-12-19 18:34:20,548 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 18:34:20,548 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 18:34:20,548 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 18:34:20,548 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 199 Supporting invariants [] [2021-12-19 18:34:20,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-19 18:34:20,566 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 18:34:20,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:20,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 18:34:20,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:20,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 18:34:20,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:20,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 18:34:20,638 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 [2021-12-19 18:34:20,639 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:20,665 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 56 transitions. Complement of second has 8 states. [2021-12-19 18:34:20,666 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 [2021-12-19 18:34:20,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:20,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2021-12-19 18:34:20,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-19 18:34:20,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:20,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-19 18:34:20,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:20,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-19 18:34:20,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:20,672 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 56 transitions. [2021-12-19 18:34:20,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-19 18:34:20,676 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 12 states and 15 transitions. [2021-12-19 18:34:20,676 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-19 18:34:20,676 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-19 18:34:20,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-12-19 18:34:20,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 18:34:20,677 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-19 18:34:20,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-12-19 18:34:20,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-19 18:34:20,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:20,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-12-19 18:34:20,691 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-19 18:34:20,692 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-19 18:34:20,692 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 18:34:20,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-12-19 18:34:20,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-19 18:34:20,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:34:20,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:34:20,693 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 18:34:20,693 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-19 18:34:20,693 INFO L791 eck$LassoCheckResult]: Stem: 112#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); 113#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~post7#1, main_#t~post8#1, main_#t~post9#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 110#L22 assume !!(main_~x~0#1 > -100); 111#L23 assume !!(main_~x~0#1 < 200); 120#L24 assume !!(main_~z~0#1 > 100); 114#L25 assume !!(main_~z~0#1 < 200); 115#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 116#L29 assume !(0 != main_~tmp~0#1 % 256);main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1;main_#t~post9#1 := main_~z~0#1;main_~z~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1; 117#L29-2 [2021-12-19 18:34:20,693 INFO L793 eck$LassoCheckResult]: Loop: 117#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 121#L29 assume 0 != main_~tmp~0#1 % 256;main_#t~post7#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 117#L29-2 [2021-12-19 18:34:20,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:20,694 INFO L85 PathProgramCache]: Analyzing trace with hash 179567794, now seen corresponding path program 1 times [2021-12-19 18:34:20,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:20,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483467914] [2021-12-19 18:34:20,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:20,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:20,701 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:20,707 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:20,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:20,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 2 times [2021-12-19 18:34:20,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:20,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281798498] [2021-12-19 18:34:20,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:20,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:20,711 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:20,714 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:20,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:20,714 INFO L85 PathProgramCache]: Analyzing trace with hash 765959189, now seen corresponding path program 1 times [2021-12-19 18:34:20,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:20,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614967829] [2021-12-19 18:34:20,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:20,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:20,721 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:20,729 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:20,757 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 18:34:20,758 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 18:34:20,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 18:34:20,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 18:34:20,758 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 18:34:20,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:20,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 18:34:20,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 18:34:20,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2021-12-19 18:34:20,759 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 18:34:20,759 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 18:34:20,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:20,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:20,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:20,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:20,829 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 18:34:20,829 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 18:34:20,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:20,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:20,839 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) [2021-12-19 18:34:20,840 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 [2021-12-19 18:34:20,872 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:20,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:20,901 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 18:34:20,901 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: [] [2021-12-19 18:34:20,923 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 [2021-12-19 18:34:20,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:20,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:20,924 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) [2021-12-19 18:34:20,925 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 [2021-12-19 18:34:20,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:20,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:20,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-19 18:34:20,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:20,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:20,957 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) [2021-12-19 18:34:20,972 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 [2021-12-19 18:34:20,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 18:34:20,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:21,019 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 18:34:21,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:21,027 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 18:34:21,027 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 18:34:21,027 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 18:34:21,027 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 18:34:21,027 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 18:34:21,027 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,027 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 18:34:21,027 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 18:34:21,027 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2021-12-19 18:34:21,027 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 18:34:21,027 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 18:34:21,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:21,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:21,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:21,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:21,114 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 18:34:21,114 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 18:34:21,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:21,139 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) [2021-12-19 18:34:21,174 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 [2021-12-19 18:34:21,180 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 [2021-12-19 18:34:21,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:21,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:21,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:21,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:21,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:21,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:21,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:21,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 18:34:21,220 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 [2021-12-19 18:34:21,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:21,222 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) [2021-12-19 18:34:21,223 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 [2021-12-19 18:34:21,224 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 [2021-12-19 18:34:21,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:21,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:21,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:21,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:21,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:21,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:21,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:21,246 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 18:34:21,263 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 [2021-12-19 18:34:21,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:21,265 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) [2021-12-19 18:34:21,267 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 [2021-12-19 18:34:21,271 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 [2021-12-19 18:34:21,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:21,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:21,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:21,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:21,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:21,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:21,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:21,287 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 18:34:21,290 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 18:34:21,290 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-19 18:34:21,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:21,292 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) [2021-12-19 18:34:21,297 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 18:34:21,297 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 18:34:21,297 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 18:34:21,297 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 199 Supporting invariants [] [2021-12-19 18:34:21,312 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 [2021-12-19 18:34:21,324 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 [2021-12-19 18:34:21,324 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 18:34:21,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:21,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 18:34:21,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:21,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 18:34:21,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:21,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 18:34:21,383 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 [2021-12-19 18:34:21,384 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-12-19 18:34:21,390 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) Result 16 states and 21 transitions. Complement of second has 5 states. [2021-12-19 18:34:21,391 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 [2021-12-19 18:34:21,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-12-19 18:34:21,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-12-19 18:34:21,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-19 18:34:21,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:21,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-12-19 18:34:21,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:21,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2021-12-19 18:34:21,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:21,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2021-12-19 18:34:21,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-19 18:34:21,393 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 21 transitions. [2021-12-19 18:34:21,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-19 18:34:21,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-19 18:34:21,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-12-19 18:34:21,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 18:34:21,393 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-12-19 18:34:21,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-12-19 18:34:21,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-12-19 18:34:21,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:21,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2021-12-19 18:34:21,394 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-12-19 18:34:21,394 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-12-19 18:34:21,394 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 18:34:21,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2021-12-19 18:34:21,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-19 18:34:21,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:34:21,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:34:21,395 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-12-19 18:34:21,395 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-19 18:34:21,395 INFO L791 eck$LassoCheckResult]: Stem: 191#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); 192#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~post7#1, main_#t~post8#1, main_#t~post9#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 189#L22 assume !!(main_~x~0#1 > -100); 190#L23 assume !!(main_~x~0#1 < 200); 195#L24 assume !!(main_~z~0#1 > 100); 193#L25 assume !!(main_~z~0#1 < 200); 194#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 196#L29 assume !(0 != main_~tmp~0#1 % 256);main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1;main_#t~post9#1 := main_~z~0#1;main_~z~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1; 197#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 202#L29 assume !(0 != main_~tmp~0#1 % 256);main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1;main_#t~post9#1 := main_~z~0#1;main_~z~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1; 200#L29-2 [2021-12-19 18:34:21,395 INFO L793 eck$LassoCheckResult]: Loop: 200#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 201#L29 assume 0 != main_~tmp~0#1 % 256;main_#t~post7#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 200#L29-2 [2021-12-19 18:34:21,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:21,395 INFO L85 PathProgramCache]: Analyzing trace with hash 765959191, now seen corresponding path program 2 times [2021-12-19 18:34:21,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:21,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585874730] [2021-12-19 18:34:21,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:21,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:21,402 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:21,408 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:21,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:21,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 3 times [2021-12-19 18:34:21,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:21,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563864471] [2021-12-19 18:34:21,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:21,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:21,411 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:21,413 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:21,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:21,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1647375930, now seen corresponding path program 2 times [2021-12-19 18:34:21,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:21,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250142495] [2021-12-19 18:34:21,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:21,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:21,447 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 [2021-12-19 18:34:21,455 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:21,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:21,484 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 [2021-12-19 18:34:21,488 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 18:34:21,489 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 18:34:21,489 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 18:34:21,489 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 18:34:21,489 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 18:34:21,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,489 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 18:34:21,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 18:34:21,489 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2021-12-19 18:34:21,489 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 18:34:21,489 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 18:34:21,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:21,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:21,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:21,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:21,541 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 18:34:21,541 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 18:34:21,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:21,542 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) [2021-12-19 18:34:21,544 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 [2021-12-19 18:34:21,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:21,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:21,556 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 18:34:21,556 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: [] [2021-12-19 18:34:21,571 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 [2021-12-19 18:34:21,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:21,573 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) [2021-12-19 18:34:21,573 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 [2021-12-19 18:34:21,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:21,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:21,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:21,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:21,607 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) [2021-12-19 18:34:21,608 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 [2021-12-19 18:34:21,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 18:34:21,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:21,635 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 18:34:21,640 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 [2021-12-19 18:34:21,640 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 18:34:21,640 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 18:34:21,640 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 18:34:21,641 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 18:34:21,641 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 18:34:21,641 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,641 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 18:34:21,641 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 18:34:21,641 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2021-12-19 18:34:21,641 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 18:34:21,641 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 18:34:21,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:21,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:21,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:21,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:21,709 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 18:34:21,709 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 18:34:21,709 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:21,720 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) [2021-12-19 18:34:21,720 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 [2021-12-19 18:34:21,721 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 [2021-12-19 18:34:21,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:21,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:21,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:21,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:21,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:21,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:21,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:21,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 18:34:21,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-19 18:34:21,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:21,747 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) [2021-12-19 18:34:21,748 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 [2021-12-19 18:34:21,749 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 [2021-12-19 18:34:21,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:21,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:21,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:21,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:21,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:21,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:21,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:21,764 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 18:34:21,766 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 18:34:21,766 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-19 18:34:21,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:21,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:21,767 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) [2021-12-19 18:34:21,768 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 [2021-12-19 18:34:21,769 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 18:34:21,769 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 18:34:21,769 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 18:34:21,769 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 199 Supporting invariants [] [2021-12-19 18:34:21,785 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 [2021-12-19 18:34:21,786 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 18:34:21,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:21,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 18:34:21,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:21,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 18:34:21,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 18:34:21,844 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 [2021-12-19 18:34:21,844 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-12-19 18:34:21,857 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 18 states and 25 transitions. Complement of second has 5 states. [2021-12-19 18:34:21,858 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 [2021-12-19 18:34:21,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-12-19 18:34:21,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-12-19 18:34:21,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-12-19 18:34:21,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:21,859 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-19 18:34:21,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:21,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 18:34:21,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:21,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 18:34:21,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:21,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 18:34:21,917 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 [2021-12-19 18:34:21,917 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-12-19 18:34:21,924 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 18 states and 25 transitions. Complement of second has 5 states. [2021-12-19 18:34:21,925 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 [2021-12-19 18:34:21,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-12-19 18:34:21,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-12-19 18:34:21,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-12-19 18:34:21,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:21,926 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-19 18:34:21,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:21,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 18:34:21,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:21,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 18:34:21,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:21,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 18:34:21,972 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 [2021-12-19 18:34:21,972 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-12-19 18:34:21,983 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 20 states and 28 transitions. Complement of second has 4 states. [2021-12-19 18:34:21,983 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 [2021-12-19 18:34:21,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-12-19 18:34:21,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2021-12-19 18:34:21,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2021-12-19 18:34:21,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:21,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2021-12-19 18:34:21,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:21,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2021-12-19 18:34:21,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:21,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2021-12-19 18:34:21,988 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-19 18:34:21,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 24 transitions. [2021-12-19 18:34:21,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-19 18:34:21,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-19 18:34:21,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2021-12-19 18:34:21,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 18:34:21,989 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-19 18:34:21,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2021-12-19 18:34:21,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 10. [2021-12-19 18:34:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-12-19 18:34:21,991 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-12-19 18:34:21,991 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-12-19 18:34:21,991 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-19 18:34:21,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2021-12-19 18:34:21,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-19 18:34:21,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:34:21,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:34:21,992 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-19 18:34:21,992 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-19 18:34:21,992 INFO L791 eck$LassoCheckResult]: Stem: 403#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); 404#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~post7#1, main_#t~post8#1, main_#t~post9#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 401#L22 assume !!(main_~x~0#1 > -100); 402#L23 assume !!(main_~x~0#1 < 200); 410#L24 assume !!(main_~z~0#1 > 100); 405#L25 assume !!(main_~z~0#1 < 200); 406#L29-2 [2021-12-19 18:34:21,992 INFO L793 eck$LassoCheckResult]: Loop: 406#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 407#L29 assume !(0 != main_~tmp~0#1 % 256);main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1;main_#t~post9#1 := main_~z~0#1;main_~z~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1; 406#L29-2 [2021-12-19 18:34:21,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:21,993 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 2 times [2021-12-19 18:34:21,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:21,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376228704] [2021-12-19 18:34:21,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:21,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:22,009 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:22,011 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:22,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:22,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 1 times [2021-12-19 18:34:22,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:22,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946349398] [2021-12-19 18:34:22,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:22,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:22,014 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:22,016 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:22,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:22,016 INFO L85 PathProgramCache]: Analyzing trace with hash 179567794, now seen corresponding path program 3 times [2021-12-19 18:34:22,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:22,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641289535] [2021-12-19 18:34:22,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:22,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:22,030 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:22,034 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:22,062 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 18:34:22,062 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 18:34:22,062 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 18:34:22,062 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 18:34:22,062 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 18:34:22,062 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,062 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 18:34:22,062 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 18:34:22,062 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2021-12-19 18:34:22,062 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 18:34:22,062 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 18:34:22,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:22,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:22,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:22,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:22,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:22,132 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 18:34:22,132 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 18:34:22,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,135 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) [2021-12-19 18:34:22,136 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 [2021-12-19 18:34:22,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:22,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:22,146 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 18:34:22,146 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: [] [2021-12-19 18:34:22,162 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 [2021-12-19 18:34:22,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,164 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) [2021-12-19 18:34:22,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:22,170 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:22,178 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 [2021-12-19 18:34:22,202 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 [2021-12-19 18:34:22,202 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,204 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) [2021-12-19 18:34:22,204 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 [2021-12-19 18:34:22,205 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 18:34:22,205 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:22,224 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 18:34:22,224 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=99} Honda state: {ULTIMATE.start_main_~x~0#1=99} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 10, 1] Nus: [0, 0] [2021-12-19 18:34:22,240 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 [2021-12-19 18:34:22,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,241 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) [2021-12-19 18:34:22,243 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 [2021-12-19 18:34:22,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:22,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:22,264 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 18:34:22,264 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0#1=-256, ULTIMATE.start_main_#t~nondet6#1=-256} Honda state: {ULTIMATE.start_main_~tmp~0#1=-256, ULTIMATE.start_main_#t~nondet6#1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 18:34:22,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:22,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,288 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:34:22,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-19 18:34:22,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:22,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:22,298 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 18:34:22,298 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8#1=0} Honda state: {ULTIMATE.start_main_#t~post8#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 18:34:22,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:22,317 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,318 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:34:22,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-19 18:34:22,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:22,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:22,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:22,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,344 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:34:22,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-19 18:34:22,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 18:34:22,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:22,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-19 18:34:22,392 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 18:34:22,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-19 18:34:22,395 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 18:34:22,395 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 18:34:22,395 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 18:34:22,396 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 18:34:22,396 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 18:34:22,396 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,396 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 18:34:22,396 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 18:34:22,396 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2021-12-19 18:34:22,396 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 18:34:22,396 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 18:34:22,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:22,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:22,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:22,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:22,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:22,459 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 18:34:22,459 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 18:34:22,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,476 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:34:22,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-19 18:34:22,479 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 [2021-12-19 18:34:22,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:22,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:22,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:22,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:22,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:22,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:22,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:22,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 18:34:22,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:22,518 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,519 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:34:22,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-19 18:34:22,521 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 [2021-12-19 18:34:22,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:22,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:22,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:22,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:22,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:22,528 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:22,528 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:22,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 18:34:22,566 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-19 18:34:22,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,567 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:34:22,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-19 18:34:22,569 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 [2021-12-19 18:34:22,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:22,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:22,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:22,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:22,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:22,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:22,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:22,591 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 18:34:22,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:22,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,608 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:34:22,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-19 18:34:22,609 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 [2021-12-19 18:34:22,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:22,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:22,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:22,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:22,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:22,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:22,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:22,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 18:34:22,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:22,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,648 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:34:22,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-19 18:34:22,650 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 [2021-12-19 18:34:22,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:22,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:22,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:22,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:22,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:22,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:22,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:22,659 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 18:34:22,662 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 18:34:22,662 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-19 18:34:22,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:22,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:22,669 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:34:22,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-19 18:34:22,670 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 18:34:22,670 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 18:34:22,670 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 18:34:22,670 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 [] [2021-12-19 18:34:22,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:22,693 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 18:34:22,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:22,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 18:34:22,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:22,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 18:34:22,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:22,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 18:34:22,760 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 [2021-12-19 18:34:22,760 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:22,770 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 22 transitions. Complement of second has 4 states. [2021-12-19 18:34:22,771 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 [2021-12-19 18:34:22,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:22,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2021-12-19 18:34:22,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-19 18:34:22,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:22,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-19 18:34:22,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:22,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-19 18:34:22,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:22,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2021-12-19 18:34:22,774 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 18:34:22,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2021-12-19 18:34:22,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-19 18:34:22,774 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-19 18:34:22,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-19 18:34:22,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 18:34:22,775 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 18:34:22,775 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 18:34:22,775 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 18:34:22,775 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-19 18:34:22,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-19 18:34:22,775 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 18:34:22,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-19 18:34:22,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 06:34:22 BoogieIcfgContainer [2021-12-19 18:34:22,787 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 18:34:22,788 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 18:34:22,788 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 18:34:22,788 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 18:34:22,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:34:19" (3/4) ... [2021-12-19 18:34:22,791 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-19 18:34:22,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 18:34:22,792 INFO L158 Benchmark]: Toolchain (without parser) took 3329.91ms. Allocated memory was 88.1MB in the beginning and 134.2MB in the end (delta: 46.1MB). Free memory was 51.5MB in the beginning and 89.7MB in the end (delta: -38.2MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-12-19 18:34:22,792 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 18:34:22,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 126.54ms. Allocated memory is still 88.1MB. Free memory was 51.3MB in the beginning and 41.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-19 18:34:22,793 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.78ms. Allocated memory is still 88.1MB. Free memory was 41.6MB in the beginning and 40.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 18:34:22,794 INFO L158 Benchmark]: Boogie Preprocessor took 10.86ms. Allocated memory is still 88.1MB. Free memory was 40.1MB in the beginning and 39.1MB in the end (delta: 999.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 18:34:22,794 INFO L158 Benchmark]: RCFGBuilder took 245.98ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 39.0MB in the beginning and 86.8MB in the end (delta: -47.8MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2021-12-19 18:34:22,795 INFO L158 Benchmark]: BuchiAutomizer took 2919.23ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 86.8MB in the beginning and 89.7MB in the end (delta: -2.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2021-12-19 18:34:22,795 INFO L158 Benchmark]: Witness Printer took 3.19ms. Allocated memory is still 134.2MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 18:34:22,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 126.54ms. Allocated memory is still 88.1MB. Free memory was 51.3MB in the beginning and 41.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.78ms. Allocated memory is still 88.1MB. Free memory was 41.6MB in the beginning and 40.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.86ms. Allocated memory is still 88.1MB. Free memory was 40.1MB in the beginning and 39.1MB in the end (delta: 999.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 245.98ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 39.0MB in the beginning and 86.8MB in the end (delta: -47.8MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 2919.23ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 86.8MB in the beginning and 89.7MB in the end (delta: -2.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Witness Printer took 3.19ms. Allocated memory is still 134.2MB. Free memory is still 89.7MB. 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.3s. 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 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 60 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div444 bol100 ite100 ukn100 eq150 hnf48 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 58ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-19 18:34:22,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:23,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE