./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_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 01:16:27,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 01:16:27,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 01:16:27,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 01:16:27,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 01:16:27,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 01:16:27,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 01:16:27,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 01:16:27,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 01:16:27,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 01:16:27,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 01:16:27,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 01:16:27,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 01:16:27,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 01:16:27,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 01:16:27,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 01:16:27,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 01:16:27,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 01:16:27,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 01:16:27,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 01:16:27,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 01:16:27,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 01:16:27,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 01:16:27,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 01:16:27,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 01:16:27,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 01:16:27,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 01:16:27,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 01:16:27,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 01:16:27,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 01:16:27,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 01:16:27,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 01:16:27,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 01:16:27,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 01:16:27,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 01:16:27,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 01:16:27,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 01:16:27,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 01:16:27,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 01:16:27,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 01:16:27,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 01:16:27,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-31 01:16:27,359 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 01:16:27,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 01:16:27,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 01:16:27,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 01:16:27,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 01:16:27,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 01:16:27,362 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 01:16:27,362 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 01:16:27,362 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 01:16:27,362 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 01:16:27,363 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 01:16:27,363 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 01:16:27,363 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 01:16:27,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 01:16:27,364 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 01:16:27,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 01:16:27,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 01:16:27,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 01:16:27,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 01:16:27,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 01:16:27,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 01:16:27,365 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 01:16:27,365 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 01:16:27,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 01:16:27,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 01:16:27,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 01:16:27,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 01:16:27,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 01:16:27,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 01:16:27,367 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 01:16:27,367 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 [2021-08-31 01:16:27,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 01:16:27,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 01:16:27,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 01:16:27,635 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 01:16:27,636 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 01:16:27,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2021-08-31 01:16:27,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09a929762/977018c296b74c189dffb17e67918bac/FLAG0f0069d16 [2021-08-31 01:16:28,009 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 01:16:28,009 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2021-08-31 01:16:28,013 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09a929762/977018c296b74c189dffb17e67918bac/FLAG0f0069d16 [2021-08-31 01:16:28,021 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09a929762/977018c296b74c189dffb17e67918bac [2021-08-31 01:16:28,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 01:16:28,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 01:16:28,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 01:16:28,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 01:16:28,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 01:16:28,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:16:28" (1/1) ... [2021-08-31 01:16:28,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b537b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28, skipping insertion in model container [2021-08-31 01:16:28,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:16:28" (1/1) ... [2021-08-31 01:16:28,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 01:16:28,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 01:16:28,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:16:28,156 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 01:16:28,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:16:28,183 INFO L208 MainTranslator]: Completed translation [2021-08-31 01:16:28,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28 WrapperNode [2021-08-31 01:16:28,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 01:16:28,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 01:16:28,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 01:16:28,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 01:16:28,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28" (1/1) ... [2021-08-31 01:16:28,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28" (1/1) ... [2021-08-31 01:16:28,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 01:16:28,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 01:16:28,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 01:16:28,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 01:16:28,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28" (1/1) ... [2021-08-31 01:16:28,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28" (1/1) ... [2021-08-31 01:16:28,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28" (1/1) ... [2021-08-31 01:16:28,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28" (1/1) ... [2021-08-31 01:16:28,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28" (1/1) ... [2021-08-31 01:16:28,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28" (1/1) ... [2021-08-31 01:16:28,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28" (1/1) ... [2021-08-31 01:16:28,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 01:16:28,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 01:16:28,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 01:16:28,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 01:16:28,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28" (1/1) ... [2021-08-31 01:16:28,231 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:28,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:28,246 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 01:16:28,257 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 01:16:28,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 01:16:28,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 01:16:28,359 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 01:16:28,359 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-31 01:16:28,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:16:28 BoogieIcfgContainer [2021-08-31 01:16:28,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 01:16:28,363 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 01:16:28,363 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 01:16:28,365 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 01:16:28,366 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:16:28,366 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 01:16:28" (1/3) ... [2021-08-31 01:16:28,367 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67952a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:16:28, skipping insertion in model container [2021-08-31 01:16:28,367 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:16:28,367 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:28" (2/3) ... [2021-08-31 01:16:28,367 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67952a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:16:28, skipping insertion in model container [2021-08-31 01:16:28,367 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:16:28,367 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:16:28" (3/3) ... [2021-08-31 01:16:28,369 INFO L389 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2021-08-31 01:16:28,412 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 01:16:28,412 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 01:16:28,412 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 01:16:28,413 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 01:16:28,413 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 01:16:28,413 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 01:16:28,413 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 01:16:28,413 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 01:16:28,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) 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 01:16:28,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-31 01:16:28,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:16:28,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:16:28,436 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-31 01:16:28,436 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-31 01:16:28,436 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 01:16:28,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) 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 01:16:28,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-31 01:16:28,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:16:28,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:16:28,437 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-31 01:16:28,437 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-31 01:16:28,441 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L17-2true [2021-08-31 01:16:28,442 INFO L793 eck$LassoCheckResult]: Loop: 5#L17-2true assume !!(main_~i~0 < 5);main_~j~0 := 0; 3#L19-2true assume !(main_~i~0 > 2 && main_~j~0 <= 9); 9#L19-3true main_~i~0 := 1 + main_~i~0; 5#L17-2true [2021-08-31 01:16:28,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:28,447 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-08-31 01:16:28,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:28,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371870604] [2021-08-31 01:16:28,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:28,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:28,495 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:28,505 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:28,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:28,507 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2021-08-31 01:16:28,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:28,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098668395] [2021-08-31 01:16:28,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:28,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:28,524 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:28,539 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:28,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:28,541 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2021-08-31 01:16:28,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:28,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230902444] [2021-08-31 01:16:28,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:28,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:28,549 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:28,553 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:28,662 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:16:28,663 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:16:28,663 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:16:28,663 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:16:28,663 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:16:28,663 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:28,663 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:16:28,663 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:16:28,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2021-08-31 01:16:28,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:16:28,663 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:16:28,673 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 01:16:28,678 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 01:16:28,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:16:28,683 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 01:16:28,728 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:16:28,728 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:16:28,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:28,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:28,730 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 01:16:28,747 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 01:16:28,749 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:16:28,749 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:28,766 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:16:28,767 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:16:28,789 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 01:16:28,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:28,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:28,790 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 01:16:28,791 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 01:16:28,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:16:28,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:28,813 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:16:28,813 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:16:28,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-31 01:16:28,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:28,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:28,830 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 01:16:28,834 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 01:16:28,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:16:28,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:28,843 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:16:28,844 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0} Honda state: {ULTIMATE.start_main_~j~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:16:28,863 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 01:16:28,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:28,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:28,867 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 01:16:28,867 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 01:16:28,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:16:28,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:28,906 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 01:16:28,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:28,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:28,908 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 01:16:28,908 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 01:16:28,910 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:16:28,910 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:28,937 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:16:28,942 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 01:16:28,942 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:16:28,943 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:16:28,943 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:16:28,943 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:16:28,943 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:16:28,943 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:28,943 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:16:28,943 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:16:28,943 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2021-08-31 01:16:28,943 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:16:28,943 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:16:28,944 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 01:16:28,951 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 01:16:28,960 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 01:16:28,963 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 01:16:29,008 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:16:29,011 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:16:29,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:29,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:29,013 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 01:16:29,016 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 01:16:29,017 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 01:16:29,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:16:29,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:16:29,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:16:29,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:16:29,028 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:16:29,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:16:29,037 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:16:29,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-08-31 01:16:29,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:29,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:29,053 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 01:16:29,054 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 01:16:29,055 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 01:16:29,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:16:29,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:16:29,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:16:29,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:16:29,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:16:29,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:16:29,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:16:29,068 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:16:29,071 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:16:29,071 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:16:29,072 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:29,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:29,073 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 01:16:29,073 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 01:16:29,074 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:16:29,074 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:16:29,075 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:16:29,075 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 5 Supporting invariants [] [2021-08-31 01:16:29,090 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 01:16:29,092 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:16:29,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:29,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:16:29,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:29,129 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-31 01:16:29,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:29,171 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 01:16:29,200 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 01:16:29,218 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-31 01:16:29,219 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) 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) Second operand has 4 states, 4 states have (on average 1.0) 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 01:16:29,268 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) 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). Second operand has 4 states, 4 states have (on average 1.0) 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 30 states and 48 transitions. Complement of second has 9 states. [2021-08-31 01:16:29,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-31 01:16:29,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) 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 01:16:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2021-08-31 01:16:29,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 1 letters. Loop has 3 letters. [2021-08-31 01:16:29,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:29,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 4 letters. Loop has 3 letters. [2021-08-31 01:16:29,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:29,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 1 letters. Loop has 6 letters. [2021-08-31 01:16:29,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:29,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 48 transitions. [2021-08-31 01:16:29,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-31 01:16:29,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 13 states and 18 transitions. [2021-08-31 01:16:29,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-08-31 01:16:29,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-08-31 01:16:29,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-08-31 01:16:29,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:16:29,281 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-08-31 01:16:29,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-08-31 01:16:29,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-08-31 01:16:29,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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 01:16:29,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-08-31 01:16:29,297 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-08-31 01:16:29,297 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-08-31 01:16:29,297 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 01:16:29,297 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2021-08-31 01:16:29,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-31 01:16:29,298 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:16:29,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:16:29,298 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:16:29,298 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:16:29,298 INFO L791 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 90#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 82#L19-2 [2021-08-31 01:16:29,299 INFO L793 eck$LassoCheckResult]: Loop: 82#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 83#L19-2 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 91#L19-3 main_~i~0 := 1 + main_~i~0; 86#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 82#L19-2 [2021-08-31 01:16:29,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:29,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-08-31 01:16:29,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:29,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247657572] [2021-08-31 01:16:29,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:29,300 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:29,303 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:29,305 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:29,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:29,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1506610, now seen corresponding path program 1 times [2021-08-31 01:16:29,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:29,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417750180] [2021-08-31 01:16:29,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:29,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:29,310 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:29,313 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:29,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:29,314 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 1 times [2021-08-31 01:16:29,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:29,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191000599] [2021-08-31 01:16:29,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:29,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:29,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:16:29,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:16:29,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191000599] [2021-08-31 01:16:29,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191000599] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:16:29,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789285910] [2021-08-31 01:16:29,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:29,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:16:29,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:29,346 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:16:29,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-31 01:16:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:29,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:16:29,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:29,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:16:29,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:16:29,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:16:29,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789285910] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:16:29,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:16:29,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-08-31 01:16:29,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432471797] [2021-08-31 01:16:29,532 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:16:29,532 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:16:29,532 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:16:29,532 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:16:29,532 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:16:29,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:29,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:16:29,533 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:16:29,533 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2021-08-31 01:16:29,533 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:16:29,533 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:16:29,534 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 01:16:29,536 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 01:16:29,540 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 01:16:29,542 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 01:16:29,577 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:16:29,577 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:16:29,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:29,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:29,578 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 01:16:29,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:16:29,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:29,601 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 01:16:29,613 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:16:29,613 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:16:29,629 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 01:16:29,630 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:29,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:29,630 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 01:16:29,631 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 01:16:29,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:16:29,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:29,671 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 01:16:29,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:29,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:29,672 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 01:16:29,673 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 01:16:29,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:16:29,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:29,703 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:16:29,707 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 01:16:29,708 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:16:29,708 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:16:29,708 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:16:29,708 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:16:29,708 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:16:29,708 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:29,708 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:16:29,708 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:16:29,708 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2021-08-31 01:16:29,708 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:16:29,708 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:16:29,709 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 01:16:29,715 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 01:16:29,720 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 01:16:29,722 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 01:16:29,760 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:16:29,761 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:16:29,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:29,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:29,762 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 01:16:29,775 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 01:16:29,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:16:29,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:16:29,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:16:29,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:16:29,783 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 01:16:29,783 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:16:29,783 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:16:29,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:16:29,817 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 01:16:29,817 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:29,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:29,818 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 01:16:29,824 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 01:16:29,825 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 01:16:29,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:16:29,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:16:29,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:16:29,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:16:29,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:16:29,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:16:29,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:16:29,848 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:16:29,851 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:16:29,851 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:16:29,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:29,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:29,853 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 01:16:29,859 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:16:29,859 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:16:29,859 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:16:29,859 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 7 Supporting invariants [] [2021-08-31 01:16:29,860 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 01:16:29,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-31 01:16:29,878 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:16:29,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:29,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:16:29,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:29,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:16:29,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:29,927 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 01:16:29,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-31 01:16:29,944 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 01:16:29,944 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 01:16:29,960 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 22 states and 31 transitions. Complement of second has 6 states. [2021-08-31 01:16:29,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:16:29,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 01:16:29,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-08-31 01:16:29,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2021-08-31 01:16:29,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:29,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-08-31 01:16:29,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:29,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters. [2021-08-31 01:16:29,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:29,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 31 transitions. [2021-08-31 01:16:29,963 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:16:29,964 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 15 states and 22 transitions. [2021-08-31 01:16:29,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-08-31 01:16:29,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-08-31 01:16:29,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2021-08-31 01:16:29,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:16:29,964 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2021-08-31 01:16:29,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2021-08-31 01:16:29,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-08-31 01:16:29,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:16:29,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2021-08-31 01:16:29,966 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2021-08-31 01:16:29,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:16:29,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-31 01:16:29,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-31 01:16:29,969 INFO L87 Difference]: Start difference. First operand 14 states and 21 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 01:16:29,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:16:29,995 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2021-08-31 01:16:29,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-31 01:16:29,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-08-31 01:16:29,997 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:16:29,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2021-08-31 01:16:29,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-08-31 01:16:29,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-08-31 01:16:29,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2021-08-31 01:16:29,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:16:29,998 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-08-31 01:16:29,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2021-08-31 01:16:29,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2021-08-31 01:16:29,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 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 01:16:30,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-08-31 01:16:30,000 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-08-31 01:16:30,000 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-08-31 01:16:30,000 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 01:16:30,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-08-31 01:16:30,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:16:30,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:16:30,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:16:30,001 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-31 01:16:30,001 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-31 01:16:30,001 INFO L791 eck$LassoCheckResult]: Stem: 237#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 233#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 234#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 230#L19-2 [2021-08-31 01:16:30,002 INFO L793 eck$LassoCheckResult]: Loop: 230#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 230#L19-2 [2021-08-31 01:16:30,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:30,002 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2021-08-31 01:16:30,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:30,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045868287] [2021-08-31 01:16:30,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:30,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:30,006 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:30,009 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:30,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:30,009 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2021-08-31 01:16:30,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:30,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751007117] [2021-08-31 01:16:30,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:30,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:30,012 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:30,013 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:30,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:30,014 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 2 times [2021-08-31 01:16:30,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:30,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586399389] [2021-08-31 01:16:30,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:30,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:30,017 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:30,020 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:30,031 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:16:30,031 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:16:30,031 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:16:30,031 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:16:30,031 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:16:30,031 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,031 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:16:30,032 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:16:30,032 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2021-08-31 01:16:30,032 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:16:30,032 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:16:30,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:16:30,034 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 01:16:30,038 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 01:16:30,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:16:30,065 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:16:30,065 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:16:30,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:30,066 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 01:16:30,067 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 01:16:30,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:16:30,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:30,087 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:16:30,088 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:16:30,104 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 01:16:30,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:30,105 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 01:16:30,106 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 01:16:30,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:16:30,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:30,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-08-31 01:16:30,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:30,133 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 01:16:30,133 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 01:16:30,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:16:30,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:30,169 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:16:30,171 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 01:16:30,175 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:16:30,175 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:16:30,175 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:16:30,175 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:16:30,175 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:16:30,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:16:30,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:16:30,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2021-08-31 01:16:30,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:16:30,175 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:16:30,176 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 01:16:30,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:16:30,188 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 01:16:30,191 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 01:16:30,221 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:16:30,221 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:16:30,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:30,222 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 01:16:30,227 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 01:16:30,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:16:30,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:16:30,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:16:30,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:16:30,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:16:30,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:16:30,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:16:30,237 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 01:16:30,244 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:16:30,246 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:16:30,246 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:16:30,246 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:30,249 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 01:16:30,250 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 01:16:30,251 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:16:30,251 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:16:30,251 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:16:30,251 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 19 Supporting invariants [] [2021-08-31 01:16:30,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-31 01:16:30,267 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:16:30,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:30,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:16:30,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:30,299 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:16:30,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:30,299 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 01:16:30,300 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-31 01:16:30,301 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 01:16:30,315 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 42 states and 54 transitions. Complement of second has 5 states. [2021-08-31 01:16:30,315 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 01:16:30,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 01:16:30,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-08-31 01:16:30,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2021-08-31 01:16:30,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:30,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 1 letters. [2021-08-31 01:16:30,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:30,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2021-08-31 01:16:30,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:30,317 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 54 transitions. [2021-08-31 01:16:30,318 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:16:30,319 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 36 states and 47 transitions. [2021-08-31 01:16:30,319 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-08-31 01:16:30,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-08-31 01:16:30,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 47 transitions. [2021-08-31 01:16:30,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:16:30,319 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2021-08-31 01:16:30,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 47 transitions. [2021-08-31 01:16:30,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2021-08-31 01:16:30,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 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 01:16:30,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2021-08-31 01:16:30,321 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-08-31 01:16:30,321 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-08-31 01:16:30,321 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 01:16:30,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2021-08-31 01:16:30,322 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:16:30,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:16:30,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:16:30,322 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 2, 1, 1, 1] [2021-08-31 01:16:30,322 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-31 01:16:30,323 INFO L791 eck$LassoCheckResult]: Stem: 331#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 327#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 324#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 325#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 326#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 346#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 344#L19-2 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 332#L19-3 main_~i~0 := 1 + main_~i~0; 333#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 334#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 335#L19-2 [2021-08-31 01:16:30,323 INFO L793 eck$LassoCheckResult]: Loop: 335#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 335#L19-2 [2021-08-31 01:16:30,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:30,323 INFO L82 PathProgramCache]: Analyzing trace with hash 405215385, now seen corresponding path program 2 times [2021-08-31 01:16:30,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:30,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514557561] [2021-08-31 01:16:30,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:30,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:16:30,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:16:30,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514557561] [2021-08-31 01:16:30,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514557561] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:16:30,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198604038] [2021-08-31 01:16:30,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-31 01:16:30,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:16:30,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:30,389 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:16:30,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-08-31 01:16:30,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-31 01:16:30,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-31 01:16:30,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-31 01:16:30,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:30,456 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:16:30,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:16:30,602 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 01:16:30,608 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:16:30,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198604038] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:16:30,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:16:30,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2021-08-31 01:16:30,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185800414] [2021-08-31 01:16:30,609 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 01:16:30,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:30,609 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2021-08-31 01:16:30,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:30,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104727245] [2021-08-31 01:16:30,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:30,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:30,613 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:30,614 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:30,629 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:16:30,629 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:16:30,629 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:16:30,629 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:16:30,630 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:16:30,630 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,630 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:16:30,630 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:16:30,630 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2021-08-31 01:16:30,630 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:16:30,630 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:16:30,630 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 01:16:30,635 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 01:16:30,637 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 01:16:30,639 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 01:16:30,660 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:16:30,660 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:16:30,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:30,665 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 01:16:30,674 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:16:30,674 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:30,681 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 01:16:30,710 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 01:16:30,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:30,711 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 01:16:30,711 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 01:16:30,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:16:30,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:16:30,739 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:16:30,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-08-31 01:16:30,742 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:16:30,742 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:16:30,742 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:16:30,742 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:16:30,742 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:16:30,742 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,742 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:16:30,742 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:16:30,742 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2021-08-31 01:16:30,742 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:16:30,742 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:16:30,743 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 01:16:30,751 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 01:16:30,760 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 01:16:30,762 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 01:16:30,782 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:16:30,782 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:16:30,782 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:30,783 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 01:16:30,785 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 01:16:30,785 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 01:16:30,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:16:30,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:16:30,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:16:30,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:16:30,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:16:30,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:16:30,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:16:30,794 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:16:30,795 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:16:30,795 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:16:30,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:30,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:30,796 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 01:16:30,797 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 01:16:30,797 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:16:30,797 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:16:30,797 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:16:30,798 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 19 Supporting invariants [] [2021-08-31 01:16:30,812 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 01:16:30,813 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:16:30,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:30,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:16:30,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:30,859 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:16:30,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:30,859 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 01:16:30,860 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-31 01:16:30,860 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 01:16:30,876 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 40 states and 51 transitions. Complement of second has 5 states. [2021-08-31 01:16:30,877 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 01:16:30,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 01:16:30,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-08-31 01:16:30,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 1 letters. [2021-08-31 01:16:30,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:30,879 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-31 01:16:30,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:30,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:16:30,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:30,917 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:16:30,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:30,917 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 01:16:30,918 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-31 01:16:30,918 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 01:16:30,928 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 40 states and 51 transitions. Complement of second has 5 states. [2021-08-31 01:16:30,928 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 01:16:30,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 01:16:30,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-08-31 01:16:30,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 1 letters. [2021-08-31 01:16:30,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:30,929 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-31 01:16:30,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:30,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:16:30,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:30,960 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:16:30,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:16:30,960 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 01:16:30,961 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 1 loop predicates [2021-08-31 01:16:30,961 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 01:16:30,983 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 29 states and 38 transitions. Complement of second has 4 states. [2021-08-31 01:16:30,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-31 01:16:30,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 01:16:30,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-08-31 01:16:30,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 10 letters. Loop has 1 letters. [2021-08-31 01:16:30,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:30,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 1 letters. [2021-08-31 01:16:30,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:30,985 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 10 letters. Loop has 2 letters. [2021-08-31 01:16:30,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:16:30,985 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2021-08-31 01:16:30,987 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:16:30,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2021-08-31 01:16:30,987 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 01:16:30,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 01:16:30,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 01:16:30,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 01:16:30,987 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:16:30,987 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:16:30,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:16:30,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-31 01:16:30,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2021-08-31 01:16:30,988 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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 01:16:30,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:16:30,988 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-31 01:16:30,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-31 01:16:30,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-31 01:16:30,989 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:16:30,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-31 01:16:30,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 01:16:30,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 01:16:30,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 01:16:30,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 01:16:30,989 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:16:30,990 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:16:30,990 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:16:30,990 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-31 01:16:30,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 01:16:30,990 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:16:30,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 01:16:30,992 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 01:16:30,994 INFO L158 Benchmark]: Toolchain (without parser) took 2970.06ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 47.9MB in the beginning and 42.8MB in the end (delta: 5.1MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2021-08-31 01:16:30,995 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 48.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:16:30,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.33ms. Allocated memory is still 67.1MB. Free memory was 47.7MB in the beginning and 51.3MB in the end (delta: -3.6MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2021-08-31 01:16:30,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.50ms. Allocated memory is still 67.1MB. Free memory was 51.3MB in the beginning and 50.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 01:16:30,996 INFO L158 Benchmark]: Boogie Preprocessor took 11.16ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 49.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:16:30,996 INFO L158 Benchmark]: RCFGBuilder took 135.85ms. Allocated memory is still 67.1MB. Free memory was 49.0MB in the beginning and 41.7MB in the end (delta: 7.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 01:16:30,996 INFO L158 Benchmark]: BuchiAutomizer took 2630.52ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 41.7MB in the beginning and 42.8MB in the end (delta: -1.1MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2021-08-31 01:16:30,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 48.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 159.33ms. Allocated memory is still 67.1MB. Free memory was 47.7MB in the beginning and 51.3MB in the end (delta: -3.6MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.50ms. Allocated memory is still 67.1MB. Free memory was 51.3MB in the beginning and 50.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.16ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 49.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 135.85ms. Allocated memory is still 67.1MB. Free memory was 49.0MB in the beginning and 41.7MB in the end (delta: 7.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 2630.52ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 41.7MB in the beginning and 42.8MB in the end (delta: -1.1MB). Peak memory consumption was 24.9MB. 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 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 5 and consists of 6 locations. One deterministic module has affine ranking function 7 + -2 * i and consists of 4 locations. One deterministic module has affine ranking function 19 + -2 * j and consists of 3 locations. One nondeterministic module has affine ranking function 19 + -2 * j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 12 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 01:16:31,016 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 01:16:31,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-08-31 01:16:31,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-31 01:16:31,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...