./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/Toulouse-BranchesToLoop-2.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 4d47290c22ee8ca606b2e1fe494335758b7c5275 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 13:55:58,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 13:55:58,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 13:55:58,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 13:55:58,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 13:55:58,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 13:55:58,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 13:55:58,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 13:55:58,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 13:55:58,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 13:55:58,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 13:55:58,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 13:55:58,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 13:55:58,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 13:55:58,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 13:55:58,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 13:55:58,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 13:55:58,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 13:55:58,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 13:55:58,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 13:55:58,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 13:55:58,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 13:55:58,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 13:55:58,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 13:55:58,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 13:55:58,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 13:55:58,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 13:55:58,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 13:55:58,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 13:55:58,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 13:55:58,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 13:55:58,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 13:55:58,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 13:55:58,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 13:55:58,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 13:55:58,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 13:55:58,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 13:55:58,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 13:55:58,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 13:55:58,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 13:55:58,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 13:55:58,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 13:55:58,426 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 13:55:58,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 13:55:58,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 13:55:58,426 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 13:55:58,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 13:55:58,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 13:55:58,428 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 13:55:58,428 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 13:55:58,429 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 13:55:58,429 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 13:55:58,429 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 13:55:58,429 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 13:55:58,429 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 13:55:58,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 13:55:58,430 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 13:55:58,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 13:55:58,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 13:55:58,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 13:55:58,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 13:55:58,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 13:55:58,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 13:55:58,431 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 13:55:58,431 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 13:55:58,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 13:55:58,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 13:55:58,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 13:55:58,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 13:55:58,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 13:55:58,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 13:55:58,432 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 13:55:58,432 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d47290c22ee8ca606b2e1fe494335758b7c5275 [2021-08-27 13:55:58,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 13:55:58,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 13:55:58,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 13:55:58,681 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 13:55:58,682 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 13:55:58,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop-2.c [2021-08-27 13:55:58,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a755ae33/4a4f0007791b4ee2a6d909e22375f1c6/FLAGf42703fa4 [2021-08-27 13:55:59,042 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 13:55:59,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop-2.c [2021-08-27 13:55:59,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a755ae33/4a4f0007791b4ee2a6d909e22375f1c6/FLAGf42703fa4 [2021-08-27 13:55:59,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a755ae33/4a4f0007791b4ee2a6d909e22375f1c6 [2021-08-27 13:55:59,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 13:55:59,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 13:55:59,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 13:55:59,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 13:55:59,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 13:55:59,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:55:59" (1/1) ... [2021-08-27 13:55:59,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccfaa9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59, skipping insertion in model container [2021-08-27 13:55:59,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:55:59" (1/1) ... [2021-08-27 13:55:59,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 13:55:59,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 13:55:59,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:55:59,598 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 13:55:59,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:55:59,632 INFO L208 MainTranslator]: Completed translation [2021-08-27 13:55:59,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59 WrapperNode [2021-08-27 13:55:59,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 13:55:59,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 13:55:59,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 13:55:59,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 13:55:59,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59" (1/1) ... [2021-08-27 13:55:59,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59" (1/1) ... [2021-08-27 13:55:59,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 13:55:59,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 13:55:59,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 13:55:59,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 13:55:59,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59" (1/1) ... [2021-08-27 13:55:59,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59" (1/1) ... [2021-08-27 13:55:59,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59" (1/1) ... [2021-08-27 13:55:59,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59" (1/1) ... [2021-08-27 13:55:59,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59" (1/1) ... [2021-08-27 13:55:59,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59" (1/1) ... [2021-08-27 13:55:59,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59" (1/1) ... [2021-08-27 13:55:59,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 13:55:59,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 13:55:59,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 13:55:59,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 13:55:59,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59" (1/1) ... [2021-08-27 13:55:59,705 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:59,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:59,719 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) [2021-08-27 13:55:59,765 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 [2021-08-27 13:55:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 13:55:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 13:55:59,922 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 13:55:59,922 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 13:55:59,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:55:59 BoogieIcfgContainer [2021-08-27 13:55:59,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 13:55:59,925 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 13:55:59,926 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 13:55:59,927 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 13:55:59,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:55:59,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 01:55:59" (1/3) ... [2021-08-27 13:55:59,929 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32ef0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:55:59, skipping insertion in model container [2021-08-27 13:55:59,929 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:55:59,929 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:55:59" (2/3) ... [2021-08-27 13:55:59,929 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32ef0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:55:59, skipping insertion in model container [2021-08-27 13:55:59,929 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:55:59,929 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:55:59" (3/3) ... [2021-08-27 13:55:59,930 INFO L389 chiAutomizerObserver]: Analyzing ICFG Toulouse-BranchesToLoop-2.c [2021-08-27 13:55:59,979 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 13:55:59,981 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 13:55:59,981 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 13:55:59,981 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 13:55:59,981 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 13:55:59,982 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 13:55:59,982 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 13:55:59,982 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 13:55:59,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2021-08-27 13:55:59,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 13:55:59,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:59,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:56:00,002 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-27 13:56:00,002 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 13:56:00,003 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 13:56:00,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2021-08-27 13:56:00,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 13:56:00,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:56:00,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:56:00,004 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-27 13:56:00,004 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 13:56:00,008 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L20true assume !!(-268435455 <= main_~y~0); 6#L21true assume !!(-268435455 <= main_~z~0); 4#L22true assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := 1; 8#L27-1true [2021-08-27 13:56:00,008 INFO L793 eck$LassoCheckResult]: Loop: 8#L27-1true assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 8#L27-1true [2021-08-27 13:56:00,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:56:00,011 INFO L82 PathProgramCache]: Analyzing trace with hash 959433, now seen corresponding path program 1 times [2021-08-27 13:56:00,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:56:00,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421087727] [2021-08-27 13:56:00,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:56:00,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:56:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:56:00,088 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:56:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:56:00,109 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:56:00,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:56:00,111 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2021-08-27 13:56:00,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:56:00,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960746569] [2021-08-27 13:56:00,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:56:00,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:56:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:56:00,124 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:56:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:56:00,130 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:56:00,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:56:00,132 INFO L82 PathProgramCache]: Analyzing trace with hash 29742448, now seen corresponding path program 1 times [2021-08-27 13:56:00,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:56:00,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921830727] [2021-08-27 13:56:00,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:56:00,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:56:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:56:00,145 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:56:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:56:00,156 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:56:00,304 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:56:00,304 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:56:00,304 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:56:00,305 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:56:00,305 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:56:00,305 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:00,305 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:56:00,305 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:56:00,305 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-BranchesToLoop-2.c_Iteration1_Lasso [2021-08-27 13:56:00,305 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:56:00,305 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:56:00,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,459 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:56:00,459 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:56:00,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:00,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:00,497 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) [2021-08-27 13:56:00,497 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 [2021-08-27 13:56:00,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:56:00,522 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:00,546 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:56:00,547 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:56:00,577 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 [2021-08-27 13:56:00,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:00,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:00,579 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) [2021-08-27 13:56:00,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:56:00,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:00,609 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 [2021-08-27 13:56:00,615 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:56:00,616 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: [] [2021-08-27 13:56:00,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-08-27 13:56:00,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:00,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:00,634 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) [2021-08-27 13:56:00,635 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 [2021-08-27 13:56:00,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:56:00,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:00,658 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:56:00,658 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:56:00,678 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 [2021-08-27 13:56:00,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:00,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:00,680 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) [2021-08-27 13:56:00,681 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 [2021-08-27 13:56:00,683 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:56:00,683 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:00,705 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:56:00,705 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:56:00,723 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 [2021-08-27 13:56:00,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:00,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:00,724 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) [2021-08-27 13:56:00,725 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 [2021-08-27 13:56:00,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:56:00,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:00,748 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:56:00,748 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:56:00,765 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 [2021-08-27 13:56:00,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:00,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:00,767 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) [2021-08-27 13:56:00,767 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 [2021-08-27 13:56:00,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:56:00,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:00,791 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:56:00,791 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: [] [2021-08-27 13:56:00,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 13:56:00,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:00,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:00,809 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) [2021-08-27 13:56:00,810 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 [2021-08-27 13:56:00,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:56:00,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:00,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-08-27 13:56:00,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:00,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:00,859 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) [2021-08-27 13:56:00,860 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 [2021-08-27 13:56:00,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:56:00,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:00,905 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:56:00,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-08-27 13:56:00,909 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:56:00,909 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:56:00,909 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:56:00,909 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:56:00,909 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:56:00,909 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:00,909 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:56:00,910 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:56:00,910 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-BranchesToLoop-2.c_Iteration1_Lasso [2021-08-27 13:56:00,910 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:56:00,910 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:56:00,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:00,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:01,087 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:56:01,090 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:56:01,105 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:01,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:01,106 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:56:01,151 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 [2021-08-27 13:56:01,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-27 13:56:01,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:56:01,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:56:01,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:56:01,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:56:01,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:56:01,163 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:56:01,186 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:56:01,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-27 13:56:01,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:01,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:01,207 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) [2021-08-27 13:56:01,219 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 [2021-08-27 13:56:01,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:56:01,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:56:01,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:56:01,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:56:01,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:56:01,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:56:01,227 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:56:01,229 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 [2021-08-27 13:56:01,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:56:01,255 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 [2021-08-27 13:56:01,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:01,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:01,256 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) [2021-08-27 13:56:01,257 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 [2021-08-27 13:56:01,259 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 [2021-08-27 13:56:01,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:56:01,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:56:01,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:56:01,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:56:01,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:56:01,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:56:01,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:56:01,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:56:01,295 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 [2021-08-27 13:56:01,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:01,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:01,296 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) [2021-08-27 13:56:01,297 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 [2021-08-27 13:56:01,299 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 [2021-08-27 13:56:01,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:56:01,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:56:01,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:56:01,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:56:01,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:56:01,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:56:01,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:56:01,308 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:56:01,326 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 [2021-08-27 13:56:01,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:01,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:01,327 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) [2021-08-27 13:56:01,327 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 [2021-08-27 13:56:01,329 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 [2021-08-27 13:56:01,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:56:01,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:56:01,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:56:01,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:56:01,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:56:01,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:56:01,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:56:01,338 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:56:01,354 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 [2021-08-27 13:56:01,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:01,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:01,357 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) [2021-08-27 13:56:01,358 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 [2021-08-27 13:56:01,360 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 [2021-08-27 13:56:01,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:56:01,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:56:01,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:56:01,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:56:01,370 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:56:01,370 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:56:01,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:56:01,404 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 [2021-08-27 13:56:01,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:01,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:01,405 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) [2021-08-27 13:56:01,406 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 [2021-08-27 13:56:01,408 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 [2021-08-27 13:56:01,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:56:01,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:56:01,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:56:01,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:56:01,424 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:56:01,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:56:01,449 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:56:01,464 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-08-27 13:56:01,464 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-08-27 13:56:01,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:01,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:01,479 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) [2021-08-27 13:56:01,481 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 [2021-08-27 13:56:01,491 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:56:01,504 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-27 13:56:01,504 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:56:01,504 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 199 Supporting invariants [1*ULTIMATE.start_main_~x~0 - 1 >= 0] [2021-08-27 13:56:01,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-08-27 13:56:01,524 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-08-27 13:56:01,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:56:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:56:01,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 13:56:01,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:56:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:56:01,590 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 13:56:01,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:56:01,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:56:01,598 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 [2021-08-27 13:56:01,599 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:56:01,636 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 31 transitions. Complement of second has 5 states. [2021-08-27 13:56:01,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 13:56:01,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:56:01,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2021-08-27 13:56:01,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2021-08-27 13:56:01,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:56:01,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 5 letters. Loop has 1 letters. [2021-08-27 13:56:01,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:56:01,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-27 13:56:01,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:56:01,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-08-27 13:56:01,641 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 13:56:01,643 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 5 states and 5 transitions. [2021-08-27 13:56:01,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-08-27 13:56:01,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-08-27 13:56:01,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5 transitions. [2021-08-27 13:56:01,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 13:56:01,644 INFO L681 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2021-08-27 13:56:01,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 5 transitions. [2021-08-27 13:56:01,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2021-08-27 13:56:01,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:56:01,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2021-08-27 13:56:01,658 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2021-08-27 13:56:01,658 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2021-08-27 13:56:01,658 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 13:56:01,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 5 transitions. [2021-08-27 13:56:01,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 13:56:01,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:56:01,658 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:56:01,658 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-27 13:56:01,658 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 13:56:01,658 INFO L791 eck$LassoCheckResult]: Stem: 82#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 83#L20 assume !!(-268435455 <= main_~y~0); 84#L21 assume !!(-268435455 <= main_~z~0); 80#L22 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := -1; 81#L27-1 [2021-08-27 13:56:01,658 INFO L793 eck$LassoCheckResult]: Loop: 81#L27-1 assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 81#L27-1 [2021-08-27 13:56:01,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:56:01,659 INFO L82 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2021-08-27 13:56:01,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:56:01,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616665039] [2021-08-27 13:56:01,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:56:01,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:56:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:56:01,662 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:56:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:56:01,665 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:56:01,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:56:01,665 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2021-08-27 13:56:01,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:56:01,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132900446] [2021-08-27 13:56:01,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:56:01,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:56:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:56:01,688 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:56:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:56:01,698 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:56:01,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:56:01,698 INFO L82 PathProgramCache]: Analyzing trace with hash 29742510, now seen corresponding path program 1 times [2021-08-27 13:56:01,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:56:01,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220399384] [2021-08-27 13:56:01,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:56:01,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:56:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:56:01,702 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:56:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:56:01,705 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:56:01,710 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 [2021-08-27 13:56:01,770 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:56:01,770 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:56:01,771 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:56:01,771 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:56:01,771 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:56:01,771 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:01,771 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:56:01,771 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:56:01,771 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-BranchesToLoop-2.c_Iteration2_Lasso [2021-08-27 13:56:01,771 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:56:01,771 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:56:01,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:01,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:01,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:01,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:01,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:01,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:01,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:01,893 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:56:01,893 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:56:01,894 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:01,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:01,894 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) [2021-08-27 13:56:01,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:56:01,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:01,945 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 [2021-08-27 13:56:01,952 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:56:01,952 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: [] [2021-08-27 13:56:01,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-27 13:56:01,967 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:01,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:01,968 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) [2021-08-27 13:56:01,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:56:01,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:01,980 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 [2021-08-27 13:56:01,987 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:56:01,987 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:56:02,004 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 [2021-08-27 13:56:02,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:02,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:02,005 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) [2021-08-27 13:56:02,008 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 [2021-08-27 13:56:02,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:56:02,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:02,018 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:56:02,018 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:56:02,048 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 [2021-08-27 13:56:02,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:02,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:02,050 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) [2021-08-27 13:56:02,053 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 [2021-08-27 13:56:02,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:56:02,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:02,062 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:56:02,062 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:56:02,079 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 [2021-08-27 13:56:02,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:02,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:02,080 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:56:02,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-27 13:56:02,082 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:56:02,083 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:02,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-08-27 13:56:02,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:02,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:02,107 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) [2021-08-27 13:56:02,107 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 [2021-08-27 13:56:02,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:56:02,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:56:02,134 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:56:02,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-08-27 13:56:02,136 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:56:02,137 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:56:02,137 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:56:02,137 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:56:02,137 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:56:02,137 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:02,137 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:56:02,137 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:56:02,137 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-BranchesToLoop-2.c_Iteration2_Lasso [2021-08-27 13:56:02,137 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:56:02,137 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:56:02,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:02,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:02,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:02,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:02,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:02,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:02,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:56:02,352 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:56:02,352 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:56:02,352 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:02,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:02,373 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) [2021-08-27 13:56:02,388 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 [2021-08-27 13:56:02,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:56:02,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:56:02,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:56:02,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:56:02,397 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:56:02,397 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:56:02,401 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 [2021-08-27 13:56:02,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:56:02,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-08-27 13:56:02,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:02,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:02,429 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) [2021-08-27 13:56:02,430 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 [2021-08-27 13:56:02,432 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 [2021-08-27 13:56:02,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:56:02,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:56:02,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:56:02,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:56:02,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:56:02,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:56:02,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:56:02,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:56:02,472 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 [2021-08-27 13:56:02,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:02,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:02,473 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) [2021-08-27 13:56:02,474 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 [2021-08-27 13:56:02,475 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 [2021-08-27 13:56:02,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:56:02,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:56:02,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:56:02,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:56:02,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:56:02,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:56:02,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:56:02,498 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:56:02,515 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 [2021-08-27 13:56:02,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:02,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:02,516 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:56:02,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-27 13:56:02,519 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 [2021-08-27 13:56:02,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:56:02,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:56:02,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:56:02,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:56:02,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:56:02,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:56:02,567 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:56:02,590 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-08-27 13:56:02,590 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-08-27 13:56:02,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:56:02,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:56:02,591 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:56:02,617 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:56:02,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-08-27 13:56:02,635 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-27 13:56:02,635 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:56:02,636 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = -2*ULTIMATE.start_main_~z~0 + 199 Supporting invariants [-1*ULTIMATE.start_main_~x~0 - 1 >= 0] [2021-08-27 13:56:02,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-08-27 13:56:02,666 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-08-27 13:56:02,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:56:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:56:02,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 13:56:02,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:56:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:56:02,724 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 13:56:02,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:56:02,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:56:02,726 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 [2021-08-27 13:56:02,726 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 5 transitions. cyclomatic complexity: 1 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:56:02,747 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 5 transitions. cyclomatic complexity: 1. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 6 transitions. Complement of second has 2 states. [2021-08-27 13:56:02,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-08-27 13:56:02,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:56:02,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2021-08-27 13:56:02,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2021-08-27 13:56:02,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:56:02,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2021-08-27 13:56:02,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:56:02,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-27 13:56:02,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:56:02,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 6 transitions. [2021-08-27 13:56:02,749 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 13:56:02,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2021-08-27 13:56:02,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 13:56:02,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 13:56:02,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 13:56:02,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 13:56:02,749 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 13:56:02,749 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 13:56:02,749 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 13:56:02,749 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 13:56:02,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 13:56:02,750 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 13:56:02,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 13:56:02,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 01:56:02 BoogieIcfgContainer [2021-08-27 13:56:02,753 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 13:56:02,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 13:56:02,754 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 13:56:02,754 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 13:56:02,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:55:59" (3/4) ... [2021-08-27 13:56:02,756 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 13:56:02,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 13:56:02,760 INFO L168 Benchmark]: Toolchain (without parser) took 3261.33 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 27.7 MB in the beginning and 40.3 MB in the end (delta: -12.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-08-27 13:56:02,760 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 32.5 MB in the end (delta: 45.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:56:02,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.26 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.4 MB in the beginning and 40.9 MB in the end (delta: -13.5 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-08-27 13:56:02,761 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.57 ms. Allocated memory is still 60.8 MB. Free memory was 40.9 MB in the beginning and 39.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:56:02,761 INFO L168 Benchmark]: Boogie Preprocessor took 18.90 ms. Allocated memory is still 60.8 MB. Free memory was 39.7 MB in the beginning and 38.8 MB in the end (delta: 850.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 13:56:02,761 INFO L168 Benchmark]: RCFGBuilder took 228.35 ms. Allocated memory is still 60.8 MB. Free memory was 38.7 MB in the beginning and 36.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 13:56:02,766 INFO L168 Benchmark]: BuchiAutomizer took 2827.74 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 36.4 MB in the beginning and 40.5 MB in the end (delta: -4.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-08-27 13:56:02,766 INFO L168 Benchmark]: Witness Printer took 2.09 ms. Allocated memory is still 73.4 MB. Free memory was 40.5 MB in the beginning and 40.3 MB in the end (delta: 271.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:56:02,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 32.5 MB in the end (delta: 45.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 134.26 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.4 MB in the beginning and 40.9 MB in the end (delta: -13.5 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.57 ms. Allocated memory is still 60.8 MB. Free memory was 40.9 MB in the beginning and 39.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.90 ms. Allocated memory is still 60.8 MB. Free memory was 39.7 MB in the beginning and 38.8 MB in the end (delta: 850.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 228.35 ms. Allocated memory is still 60.8 MB. Free memory was 38.7 MB in the beginning and 36.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2827.74 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 36.4 MB in the beginning and 40.5 MB in the end (delta: -4.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Witness Printer took 2.09 ms. Allocated memory is still 73.4 MB. Free memory was 40.5 MB in the beginning and 40.3 MB in the end (delta: 271.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 199 + -2 * y and consists of 4 locations. One deterministic module has affine ranking function -2 * z + 199 and consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 5.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 18 SDslu, 3 SDs, 0 SdLazy, 4 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax137 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf100 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 81ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 13:56:02,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-08-27 13:56:03,009 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...