./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/terminator_02-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/terminator_02-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3dc5764de0a899142e3c264091a9582d1804fe6f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 02:40:42,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 02:40:42,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 02:40:42,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 02:40:42,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 02:40:42,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 02:40:42,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 02:40:42,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 02:40:42,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 02:40:42,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 02:40:42,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 02:40:42,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 02:40:42,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 02:40:42,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 02:40:42,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 02:40:42,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 02:40:42,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 02:40:42,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 02:40:42,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 02:40:42,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 02:40:42,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 02:40:42,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 02:40:42,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 02:40:42,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 02:40:42,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 02:40:42,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 02:40:42,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 02:40:42,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 02:40:42,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 02:40:42,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 02:40:42,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 02:40:42,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 02:40:42,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 02:40:42,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 02:40:42,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 02:40:42,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 02:40:42,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 02:40:42,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 02:40:42,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 02:40:42,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 02:40:42,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 02:40:42,262 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 02:40:42,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 02:40:42,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 02:40:42,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 02:40:42,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 02:40:42,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 02:40:42,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 02:40:42,287 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 02:40:42,287 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 02:40:42,287 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 02:40:42,288 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 02:40:42,288 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 02:40:42,288 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 02:40:42,288 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 02:40:42,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 02:40:42,289 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 02:40:42,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 02:40:42,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 02:40:42,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 02:40:42,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 02:40:42,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 02:40:42,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 02:40:42,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 02:40:42,290 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 02:40:42,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 02:40:42,291 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 02:40:42,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 02:40:42,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 02:40:42,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 02:40:42,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 02:40:42,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 02:40:42,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 02:40:42,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 02:40:42,293 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 02:40:42,293 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dc5764de0a899142e3c264091a9582d1804fe6f [2021-08-31 02:40:42,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 02:40:42,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 02:40:42,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 02:40:42,620 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 02:40:42,621 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 02:40:42,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/terminator_02-1.c [2021-08-31 02:40:42,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dd8e90f2/ed1a459dcfa54c1d899eea4016860fa6/FLAG607271dd1 [2021-08-31 02:40:43,133 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 02:40:43,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-1.c [2021-08-31 02:40:43,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dd8e90f2/ed1a459dcfa54c1d899eea4016860fa6/FLAG607271dd1 [2021-08-31 02:40:43,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dd8e90f2/ed1a459dcfa54c1d899eea4016860fa6 [2021-08-31 02:40:43,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 02:40:43,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 02:40:43,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 02:40:43,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 02:40:43,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 02:40:43,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 02:40:43" (1/1) ... [2021-08-31 02:40:43,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bd5125c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43, skipping insertion in model container [2021-08-31 02:40:43,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 02:40:43" (1/1) ... [2021-08-31 02:40:43,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 02:40:43,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 02:40:43,319 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-1.c[327,340] [2021-08-31 02:40:43,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 02:40:43,339 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 02:40:43,349 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-1.c[327,340] [2021-08-31 02:40:43,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 02:40:43,363 INFO L208 MainTranslator]: Completed translation [2021-08-31 02:40:43,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43 WrapperNode [2021-08-31 02:40:43,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 02:40:43,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 02:40:43,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 02:40:43,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 02:40:43,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43" (1/1) ... [2021-08-31 02:40:43,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43" (1/1) ... [2021-08-31 02:40:43,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 02:40:43,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 02:40:43,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 02:40:43,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 02:40:43,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43" (1/1) ... [2021-08-31 02:40:43,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43" (1/1) ... [2021-08-31 02:40:43,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43" (1/1) ... [2021-08-31 02:40:43,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43" (1/1) ... [2021-08-31 02:40:43,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43" (1/1) ... [2021-08-31 02:40:43,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43" (1/1) ... [2021-08-31 02:40:43,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43" (1/1) ... [2021-08-31 02:40:43,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 02:40:43,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 02:40:43,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 02:40:43,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 02:40:43,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43" (1/1) ... [2021-08-31 02:40:43,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:43,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:43,496 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) [2021-08-31 02:40:43,521 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 [2021-08-31 02:40:43,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 02:40:43,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 02:40:43,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 02:40:43,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 02:40:43,705 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 02:40:43,706 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-31 02:40:43,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 02:40:43 BoogieIcfgContainer [2021-08-31 02:40:43,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 02:40:43,710 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 02:40:43,711 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 02:40:43,713 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 02:40:43,714 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:40:43,715 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 02:40:43" (1/3) ... [2021-08-31 02:40:43,716 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2686d0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 02:40:43, skipping insertion in model container [2021-08-31 02:40:43,716 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:40:43,716 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:43" (2/3) ... [2021-08-31 02:40:43,717 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2686d0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 02:40:43, skipping insertion in model container [2021-08-31 02:40:43,717 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:40:43,717 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 02:40:43" (3/3) ... [2021-08-31 02:40:43,719 INFO L389 chiAutomizerObserver]: Analyzing ICFG terminator_02-1.c [2021-08-31 02:40:43,798 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 02:40:43,799 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 02:40:43,799 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 02:40:43,799 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 02:40:43,799 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 02:40:43,799 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 02:40:43,799 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 02:40:43,799 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 02:40:43,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:43,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-31 02:40:43,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:40:43,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:40:43,842 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:40:43,842 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 02:40:43,843 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 02:40:43,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:43,845 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-31 02:40:43,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:40:43,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:40:43,846 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:40:43,846 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 02:40:43,853 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 10#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~post11, main_#t~post12, main_#t~post13, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~z~0 := main_#t~nondet9;havoc main_#t~nondet9; 6#L23-2true [2021-08-31 02:40:43,854 INFO L793 eck$LassoCheckResult]: Loop: 6#L23-2true assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 9#L23true assume !(0 != main_~tmp~0 % 256);main_#t~post12 := main_~x~0;main_~x~0 := main_#t~post12 - 1;havoc main_#t~post12;main_#t~post13 := main_~z~0;main_~z~0 := main_#t~post13 - 1;havoc main_#t~post13; 6#L23-2true [2021-08-31 02:40:43,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:43,864 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-31 02:40:43,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:43,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628772980] [2021-08-31 02:40:43,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:43,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:43,985 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:44,043 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:44,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:44,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-08-31 02:40:44,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:44,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197087955] [2021-08-31 02:40:44,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:44,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:44,061 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:44,077 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:44,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:44,079 INFO L82 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-08-31 02:40:44,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:44,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087230883] [2021-08-31 02:40:44,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:44,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:44,100 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:44,133 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:44,266 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:40:44,270 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:40:44,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:40:44,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:40:44,271 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 02:40:44,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:44,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:40:44,271 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:40:44,272 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2021-08-31 02:40:44,272 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:40:44,272 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:40:44,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:44,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:44,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:44,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:44,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:44,424 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:40:44,425 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 02:40:44,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:44,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:44,429 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) [2021-08-31 02:40:44,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:44,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:44,440 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 [2021-08-31 02:40:44,460 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 02:40:44,460 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post12=0} Honda state: {ULTIMATE.start_main_#t~post12=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 02:40:44,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-31 02:40:44,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:44,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:44,491 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) [2021-08-31 02:40:44,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:44,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:44,520 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 [2021-08-31 02:40:44,537 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 02:40:44,537 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post13=0} Honda state: {ULTIMATE.start_main_#t~post13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 02:40:44,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-08-31 02:40:44,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:44,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:44,566 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) [2021-08-31 02:40:44,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:44,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:44,582 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 [2021-08-31 02:40:44,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-31 02:40:44,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:44,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:44,625 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) [2021-08-31 02:40:44,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 02:40:44,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:44,656 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 [2021-08-31 02:40:44,658 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 02:40:44,658 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=99} Honda state: {ULTIMATE.start_main_~x~0=99} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 3, 15] Nus: [0, 1] [2021-08-31 02:40:44,682 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 [2021-08-31 02:40:44,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:44,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:44,685 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) [2021-08-31 02:40:44,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:44,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:44,714 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 [2021-08-31 02:40:44,717 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 02:40:44,717 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet10=0, ULTIMATE.start_main_~tmp~0=0} Honda state: {ULTIMATE.start_main_#t~nondet10=0, ULTIMATE.start_main_~tmp~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 02:40:44,737 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 [2021-08-31 02:40:44,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:44,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:44,738 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) [2021-08-31 02:40:44,743 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 [2021-08-31 02:40:44,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:44,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:44,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-31 02:40:44,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:44,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:44,769 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) [2021-08-31 02:40:44,779 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 [2021-08-31 02:40:44,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 02:40:44,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:44,812 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 02:40:44,815 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 [2021-08-31 02:40:44,816 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:40:44,816 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:40:44,816 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:40:44,816 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:40:44,816 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 02:40:44,816 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:44,816 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:40:44,816 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:40:44,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2021-08-31 02:40:44,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:40:44,816 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:40:44,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:44,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:44,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:44,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:44,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:44,927 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:40:44,930 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 02:40:44,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:44,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:44,945 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) [2021-08-31 02:40:44,947 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 [2021-08-31 02:40:44,949 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 [2021-08-31 02:40:44,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:40:44,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:40:44,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:40:44,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:40:44,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:40:44,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:40:44,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:40:44,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 02:40:44,995 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 [2021-08-31 02:40:44,995 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:44,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:44,997 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) [2021-08-31 02:40:44,998 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 [2021-08-31 02:40:44,999 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 [2021-08-31 02:40:45,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:40:45,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:40:45,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:40:45,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:40:45,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:40:45,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:40:45,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:40:45,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 02:40:45,045 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 [2021-08-31 02:40:45,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:45,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:45,046 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) [2021-08-31 02:40:45,047 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 [2021-08-31 02:40:45,049 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 [2021-08-31 02:40:45,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:40:45,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:40:45,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:40:45,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:40:45,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:40:45,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:40:45,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:40:45,068 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 02:40:45,084 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 [2021-08-31 02:40:45,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:45,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:45,086 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) [2021-08-31 02:40:45,086 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 [2021-08-31 02:40:45,088 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 [2021-08-31 02:40:45,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:40:45,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:40:45,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:40:45,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:40:45,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:40:45,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:40:45,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:40:45,104 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 02:40:45,107 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 02:40:45,107 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 02:40:45,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:45,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:45,117 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) [2021-08-31 02:40:45,120 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 02:40:45,120 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 02:40:45,120 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 02:40:45,121 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-08-31 02:40:45,141 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 [2021-08-31 02:40:45,146 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 [2021-08-31 02:40:45,149 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 02:40:45,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:45,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 02:40:45,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:45,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 02:40:45,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:40:45,260 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 [2021-08-31 02:40:45,270 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 [2021-08-31 02:40:45,271 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:45,338 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 54 transitions. Complement of second has 7 states. [2021-08-31 02:40:45,339 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 [2021-08-31 02:40:45,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:45,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2021-08-31 02:40:45,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 2 letters. [2021-08-31 02:40:45,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:45,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-31 02:40:45,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:45,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 4 letters. [2021-08-31 02:40:45,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:45,348 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2021-08-31 02:40:45,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-31 02:40:45,354 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 9 states and 12 transitions. [2021-08-31 02:40:45,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-08-31 02:40:45,355 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-08-31 02:40:45,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-08-31 02:40:45,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 02:40:45,356 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-08-31 02:40:45,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-08-31 02:40:45,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-08-31 02:40:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-08-31 02:40:45,394 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-08-31 02:40:45,394 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-08-31 02:40:45,394 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 02:40:45,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-08-31 02:40:45,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-31 02:40:45,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:40:45,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:40:45,395 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-31 02:40:45,395 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 02:40:45,396 INFO L791 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 95#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~post11, main_#t~post12, main_#t~post13, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~z~0 := main_#t~nondet9;havoc main_#t~nondet9; 101#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 97#L23 [2021-08-31 02:40:45,396 INFO L793 eck$LassoCheckResult]: Loop: 97#L23 assume 0 != main_~tmp~0 % 256;main_#t~post11 := main_~x~0;main_~x~0 := 1 + main_#t~post11;havoc main_#t~post11; 96#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 97#L23 [2021-08-31 02:40:45,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:45,400 INFO L82 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-08-31 02:40:45,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:45,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800377198] [2021-08-31 02:40:45,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:45,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:45,412 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:45,434 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:45,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:45,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2021-08-31 02:40:45,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:45,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931022213] [2021-08-31 02:40:45,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:45,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:45,455 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:45,465 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:45,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:45,465 INFO L82 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2021-08-31 02:40:45,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:45,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59043445] [2021-08-31 02:40:45,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:45,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:45,475 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:45,500 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:45,532 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:40:45,532 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:40:45,533 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:40:45,533 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:40:45,533 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 02:40:45,533 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:45,533 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:40:45,533 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:40:45,533 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2021-08-31 02:40:45,534 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:40:45,534 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:40:45,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:45,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:45,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:45,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:45,599 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:40:45,599 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 02:40:45,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:45,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:45,605 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) [2021-08-31 02:40:45,606 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 [2021-08-31 02:40:45,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:45,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:45,659 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 [2021-08-31 02:40:45,659 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:45,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:45,660 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) [2021-08-31 02:40:45,662 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 [2021-08-31 02:40:45,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 02:40:45,663 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:46,488 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 02:40:46,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-08-31 02:40:46,492 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:40:46,492 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:40:46,492 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:40:46,492 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:40:46,492 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 02:40:46,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:46,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:40:46,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:40:46,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2021-08-31 02:40:46,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:40:46,492 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:40:46,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:46,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:46,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:46,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:46,579 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:40:46,580 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 02:40:46,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:46,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:46,581 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) [2021-08-31 02:40:46,592 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 [2021-08-31 02:40:46,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:40:46,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:40:46,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:40:46,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:40:46,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:40:46,601 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:40:46,601 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:40:46,603 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 [2021-08-31 02:40:46,615 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 02:40:46,618 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 02:40:46,618 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 02:40:46,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:46,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:46,623 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) [2021-08-31 02:40:46,624 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 [2021-08-31 02:40:46,625 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 02:40:46,626 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 02:40:46,626 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 02:40:46,626 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 197 Supporting invariants [] [2021-08-31 02:40:46,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-31 02:40:46,648 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 02:40:46,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:46,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 02:40:46,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:46,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 02:40:46,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:40:46,707 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 [2021-08-31 02:40:46,707 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:46,726 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 20 transitions. Complement of second has 5 states. [2021-08-31 02:40:46,726 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 [2021-08-31 02:40:46,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:46,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-08-31 02:40:46,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2021-08-31 02:40:46,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:46,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-31 02:40:46,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:46,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2021-08-31 02:40:46,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:46,728 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2021-08-31 02:40:46,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-31 02:40:46,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2021-08-31 02:40:46,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-08-31 02:40:46,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-08-31 02:40:46,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-08-31 02:40:46,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 02:40:46,730 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-08-31 02:40:46,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-08-31 02:40:46,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2021-08-31 02:40:46,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:46,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-08-31 02:40:46,732 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-08-31 02:40:46,732 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-08-31 02:40:46,732 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 02:40:46,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-08-31 02:40:46,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-31 02:40:46,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:40:46,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:40:46,733 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2021-08-31 02:40:46,733 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 02:40:46,733 INFO L791 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 154#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~post11, main_#t~post12, main_#t~post13, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~z~0 := main_#t~nondet9;havoc main_#t~nondet9; 155#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 156#L23 assume !(0 != main_~tmp~0 % 256);main_#t~post12 := main_~x~0;main_~x~0 := main_#t~post12 - 1;havoc main_#t~post12;main_#t~post13 := main_~z~0;main_~z~0 := main_#t~post13 - 1;havoc main_#t~post13; 160#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 158#L23 [2021-08-31 02:40:46,733 INFO L793 eck$LassoCheckResult]: Loop: 158#L23 assume 0 != main_~tmp~0 % 256;main_#t~post11 := main_~x~0;main_~x~0 := 1 + main_#t~post11;havoc main_#t~post11; 159#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 158#L23 [2021-08-31 02:40:46,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:46,734 INFO L82 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2021-08-31 02:40:46,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:46,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574451887] [2021-08-31 02:40:46,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:46,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:46,744 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:46,755 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:46,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:46,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2021-08-31 02:40:46,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:46,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375392876] [2021-08-31 02:40:46,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:46,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:46,760 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:46,764 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:46,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:46,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 1 times [2021-08-31 02:40:46,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:46,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603248471] [2021-08-31 02:40:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:46,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:46,774 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:46,786 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:46,811 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:40:46,811 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:40:46,812 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:40:46,812 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:40:46,812 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 02:40:46,812 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:46,812 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:40:46,812 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:40:46,812 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2021-08-31 02:40:46,812 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:40:46,813 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:40:46,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:46,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:46,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:46,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:46,871 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:40:46,872 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 02:40:46,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:46,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:46,874 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) [2021-08-31 02:40:46,883 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 [2021-08-31 02:40:46,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:46,885 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:46,903 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 02:40:46,903 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post11=0} Honda state: {ULTIMATE.start_main_#t~post11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 02:40:46,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-31 02:40:46,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:46,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:46,928 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) [2021-08-31 02:40:46,928 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 [2021-08-31 02:40:46,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:46,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:46,941 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 02:40:46,941 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 02:40:46,958 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 [2021-08-31 02:40:46,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:46,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:46,959 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) [2021-08-31 02:40:46,967 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 [2021-08-31 02:40:46,968 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:46,968 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:46,990 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 02:40:46,990 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=128, ULTIMATE.start_main_#t~nondet10=128} Honda state: {ULTIMATE.start_main_~tmp~0=128, ULTIMATE.start_main_#t~nondet10=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 02:40:47,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-08-31 02:40:47,023 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:47,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:47,027 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) [2021-08-31 02:40:47,030 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 [2021-08-31 02:40:47,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:47,030 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:47,082 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 [2021-08-31 02:40:47,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:47,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:47,088 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) [2021-08-31 02:40:47,089 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 [2021-08-31 02:40:47,091 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 02:40:47,091 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:47,939 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 02:40:47,943 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 [2021-08-31 02:40:47,943 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:40:47,943 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:40:47,943 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:40:47,943 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:40:47,943 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 02:40:47,943 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:47,943 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:40:47,943 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:40:47,943 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2021-08-31 02:40:47,943 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:40:47,943 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:40:47,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:47,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:47,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:47,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:48,019 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:40:48,019 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 02:40:48,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:48,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:48,020 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) [2021-08-31 02:40:48,021 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 [2021-08-31 02:40:48,022 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 [2021-08-31 02:40:48,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:40:48,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:40:48,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:40:48,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:40:48,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:40:48,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:40:48,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:40:48,034 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 02:40:48,051 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 [2021-08-31 02:40:48,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:48,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:48,052 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) [2021-08-31 02:40:48,053 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 [2021-08-31 02:40:48,054 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 [2021-08-31 02:40:48,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:40:48,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:40:48,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:40:48,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:40:48,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:40:48,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:40:48,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:40:48,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 02:40:48,080 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 [2021-08-31 02:40:48,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:48,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:48,081 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) [2021-08-31 02:40:48,081 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 [2021-08-31 02:40:48,083 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 [2021-08-31 02:40:48,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:40:48,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:40:48,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:40:48,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:40:48,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:40:48,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:40:48,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:40:48,120 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 02:40:48,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-08-31 02:40:48,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:48,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:48,144 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) [2021-08-31 02:40:48,146 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 [2021-08-31 02:40:48,146 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 [2021-08-31 02:40:48,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:40:48,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:40:48,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:40:48,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:40:48,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:40:48,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:40:48,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:40:48,176 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 02:40:48,179 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 02:40:48,180 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 02:40:48,180 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:48,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:48,185 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) [2021-08-31 02:40:48,190 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 02:40:48,190 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 02:40:48,190 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 02:40:48,190 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 197 Supporting invariants [] [2021-08-31 02:40:48,190 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 [2021-08-31 02:40:48,213 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 [2021-08-31 02:40:48,213 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 02:40:48,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:48,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 02:40:48,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:48,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 02:40:48,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:40:48,278 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 [2021-08-31 02:40:48,278 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:48,307 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 5 states. [2021-08-31 02:40:48,308 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 [2021-08-31 02:40:48,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:48,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-08-31 02:40:48,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-31 02:40:48,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:48,311 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-31 02:40:48,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:48,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 02:40:48,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:48,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 02:40:48,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:40:48,360 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 [2021-08-31 02:40:48,360 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:48,378 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 5 states. [2021-08-31 02:40:48,379 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 [2021-08-31 02:40:48,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-08-31 02:40:48,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-31 02:40:48,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:48,380 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-31 02:40:48,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:48,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 02:40:48,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:48,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-08-31 02:40:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:48,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 02:40:48,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:48,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:40:48,453 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 [2021-08-31 02:40:48,453 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:48,470 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 4 states. [2021-08-31 02:40:48,471 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 [2021-08-31 02:40:48,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:48,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-08-31 02:40:48,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-31 02:40:48,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:48,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2021-08-31 02:40:48,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:48,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2021-08-31 02:40:48,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:48,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2021-08-31 02:40:48,473 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 02:40:48,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2021-08-31 02:40:48,474 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 02:40:48,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 02:40:48,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 02:40:48,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 02:40:48,474 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:40:48,474 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:40:48,474 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:40:48,475 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 02:40:48,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 02:40:48,475 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 02:40:48,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 02:40:48,477 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 02:40:48,480 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 [2021-08-31 02:40:48,482 INFO L158 Benchmark]: Toolchain (without parser) took 5316.35ms. Allocated memory was 50.3MB in the beginning and 88.1MB in the end (delta: 37.7MB). Free memory was 26.2MB in the beginning and 62.1MB in the end (delta: -35.9MB). Peak memory consumption was 618.4kB. Max. memory is 16.1GB. [2021-08-31 02:40:48,484 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 50.3MB. Free memory was 32.6MB in the beginning and 32.6MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 02:40:48,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.84ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 26.0MB in the beginning and 40.5MB in the end (delta: -14.5MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-08-31 02:40:48,485 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.50ms. Allocated memory is still 62.9MB. Free memory was 40.3MB in the beginning and 39.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 02:40:48,486 INFO L158 Benchmark]: Boogie Preprocessor took 53.79ms. Allocated memory is still 62.9MB. Free memory was 39.0MB in the beginning and 46.5MB in the end (delta: -7.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 02:40:48,486 INFO L158 Benchmark]: RCFGBuilder took 246.29ms. Allocated memory is still 62.9MB. Free memory was 46.5MB in the beginning and 38.3MB in the end (delta: 8.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-31 02:40:48,486 INFO L158 Benchmark]: BuchiAutomizer took 4771.65ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 38.1MB in the beginning and 62.1MB in the end (delta: -24.0MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2021-08-31 02:40:48,488 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 50.3MB. Free memory was 32.6MB in the beginning and 32.6MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.84ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 26.0MB in the beginning and 40.5MB in the end (delta: -14.5MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.50ms. Allocated memory is still 62.9MB. Free memory was 40.3MB in the beginning and 39.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.79ms. Allocated memory is still 62.9MB. Free memory was 39.0MB in the beginning and 46.5MB in the end (delta: -7.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 246.29ms. Allocated memory is still 62.9MB. Free memory was 46.5MB in the beginning and 38.3MB in the end (delta: 8.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 4771.65ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 38.1MB in the beginning and 62.1MB in the end (delta: -24.0MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function z and consists of 5 locations. One deterministic module has affine ranking function 197 + -2 * x and consists of 3 locations. One nondeterministic module has affine ranking function 197 + -2 * x and consists of 3 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 02:40:48,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...