./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Sequence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 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-restricted-15/Sequence.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 a2ea109607ebd9a0eb298d5042ccc7f2e5bd7dbe ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 18:30:10,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 18:30:10,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 18:30:11,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 18:30:11,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 18:30:11,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 18:30:11,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 18:30:11,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 18:30:11,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 18:30:11,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 18:30:11,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 18:30:11,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 18:30:11,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 18:30:11,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 18:30:11,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 18:30:11,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 18:30:11,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 18:30:11,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 18:30:11,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 18:30:11,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 18:30:11,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 18:30:11,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 18:30:11,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 18:30:11,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 18:30:11,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 18:30:11,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 18:30:11,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 18:30:11,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 18:30:11,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 18:30:11,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 18:30:11,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 18:30:11,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 18:30:11,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 18:30:11,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 18:30:11,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 18:30:11,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 18:30:11,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 18:30:11,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 18:30:11,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 18:30:11,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 18:30:11,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 18:30:11,031 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-07-06 18:30:11,049 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 18:30:11,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 18:30:11,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 18:30:11,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 18:30:11,050 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 18:30:11,050 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 18:30:11,051 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 18:30:11,051 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 18:30:11,051 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 18:30:11,051 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 18:30:11,051 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 18:30:11,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 18:30:11,051 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 18:30:11,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 18:30:11,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 18:30:11,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 18:30:11,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 18:30:11,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 18:30:11,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 18:30:11,052 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 18:30:11,052 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 18:30:11,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 18:30:11,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 18:30:11,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 18:30:11,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 18:30:11,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 18:30:11,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 18:30:11,054 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 18:30:11,054 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2ea109607ebd9a0eb298d5042ccc7f2e5bd7dbe [2021-07-06 18:30:11,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 18:30:11,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 18:30:11,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 18:30:11,265 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 18:30:11,265 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 18:30:11,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Sequence.c [2021-07-06 18:30:11,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc04f97e5/49c2813afd1141cf88480fb2a6b5bbeb/FLAGebcffa279 [2021-07-06 18:30:11,602 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 18:30:11,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Sequence.c [2021-07-06 18:30:11,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc04f97e5/49c2813afd1141cf88480fb2a6b5bbeb/FLAGebcffa279 [2021-07-06 18:30:12,032 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc04f97e5/49c2813afd1141cf88480fb2a6b5bbeb [2021-07-06 18:30:12,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 18:30:12,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 18:30:12,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 18:30:12,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 18:30:12,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 18:30:12,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:30:12" (1/1) ... [2021-07-06 18:30:12,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae8f5f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12, skipping insertion in model container [2021-07-06 18:30:12,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:30:12" (1/1) ... [2021-07-06 18:30:12,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 18:30:12,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 18:30:12,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:30:12,163 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 18:30:12,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:30:12,180 INFO L208 MainTranslator]: Completed translation [2021-07-06 18:30:12,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12 WrapperNode [2021-07-06 18:30:12,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 18:30:12,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 18:30:12,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 18:30:12,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 18:30:12,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12" (1/1) ... [2021-07-06 18:30:12,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12" (1/1) ... [2021-07-06 18:30:12,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 18:30:12,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 18:30:12,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 18:30:12,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 18:30:12,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12" (1/1) ... [2021-07-06 18:30:12,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12" (1/1) ... [2021-07-06 18:30:12,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12" (1/1) ... [2021-07-06 18:30:12,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12" (1/1) ... [2021-07-06 18:30:12,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12" (1/1) ... [2021-07-06 18:30:12,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12" (1/1) ... [2021-07-06 18:30:12,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12" (1/1) ... [2021-07-06 18:30:12,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 18:30:12,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 18:30:12,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 18:30:12,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 18:30:12,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12" (1/1) ... [2021-07-06 18:30:12,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:12,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:12,257 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) [2021-07-06 18:30:12,287 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 [2021-07-06 18:30:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 18:30:12,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 18:30:12,416 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 18:30:12,417 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-06 18:30:12,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:30:12 BoogieIcfgContainer [2021-07-06 18:30:12,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 18:30:12,420 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 18:30:12,420 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 18:30:12,422 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 18:30:12,423 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:30:12,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 06:30:12" (1/3) ... [2021-07-06 18:30:12,424 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@345f6f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:30:12, skipping insertion in model container [2021-07-06 18:30:12,424 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:30:12,424 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:12" (2/3) ... [2021-07-06 18:30:12,425 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@345f6f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:30:12, skipping insertion in model container [2021-07-06 18:30:12,425 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:30:12,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:30:12" (3/3) ... [2021-07-06 18:30:12,426 INFO L389 chiAutomizerObserver]: Analyzing ICFG Sequence.c [2021-07-06 18:30:12,465 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 18:30:12,465 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 18:30:12,465 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 18:30:12,465 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 18:30:12,466 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 18:30:12,466 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 18:30:12,466 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 18:30:12,466 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 18:30:12,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:30:12,485 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-07-06 18:30:12,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:30:12,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:30:12,488 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-07-06 18:30:12,488 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:30:12,490 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 18:30:12,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:30:12,491 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-07-06 18:30:12,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:30:12,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:30:12,492 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-07-06 18:30:12,492 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:30:12,496 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 9#L11-2true [2021-07-06 18:30:12,497 INFO L793 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 9#L11-2true [2021-07-06 18:30:12,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:30:12,500 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-07-06 18:30:12,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:30:12,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518794017] [2021-07-06 18:30:12,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:30:12,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:30:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:12,552 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:12,558 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:12,569 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:30:12,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:30:12,571 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-07-06 18:30:12,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:30:12,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388061342] [2021-07-06 18:30:12,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:30:12,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:30:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:12,583 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:12,591 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:12,592 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:30:12,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:30:12,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-07-06 18:30:12,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:30:12,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393517031] [2021-07-06 18:30:12,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:30:12,595 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:30:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:12,603 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:12,618 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:12,619 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:30:12,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:30:12,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 18:30:12,677 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:30:12,677 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:30:12,678 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:30:12,678 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:30:12,678 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-07-06 18:30:12,678 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:12,678 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:30:12,678 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:30:12,678 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2021-07-06 18:30:12,678 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:30:12,679 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:30:12,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:12,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:12,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:12,781 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:30:12,781 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-07-06 18:30:12,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:12,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:12,784 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) [2021-07-06 18:30:12,785 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 [2021-07-06 18:30:12,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:30:12,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:30:12,803 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:30:12,803 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: [] [2021-07-06 18:30:12,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-07-06 18:30:12,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:12,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:12,830 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) [2021-07-06 18:30:12,831 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 [2021-07-06 18:30:12,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:30:12,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:30:12,845 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:30:12,845 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: [] [2021-07-06 18:30:12,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-07-06 18:30:12,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:12,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:12,865 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) [2021-07-06 18:30:12,866 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 [2021-07-06 18:30:12,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:30:12,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:30:12,909 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 [2021-07-06 18:30:12,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:12,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:12,914 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) [2021-07-06 18:30:12,914 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 [2021-07-06 18:30:12,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-07-06 18:30:12,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:30:12,945 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-07-06 18:30:12,948 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 [2021-07-06 18:30:12,948 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:30:12,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:30:12,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:30:12,948 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:30:12,948 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-07-06 18:30:12,948 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:12,948 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:30:12,948 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:30:12,948 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2021-07-06 18:30:12,948 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:30:12,948 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:30:12,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:12,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:12,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:13,010 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:30:13,013 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-07-06 18:30:13,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:13,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:13,015 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) [2021-07-06 18:30:13,015 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 [2021-07-06 18:30:13,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:30:13,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:30:13,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:30:13,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:30:13,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:30:13,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:30:13,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:30:13,043 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:30:13,058 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 [2021-07-06 18:30:13,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:13,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:13,059 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) [2021-07-06 18:30:13,060 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 [2021-07-06 18:30:13,062 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 [2021-07-06 18:30:13,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:30:13,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:30:13,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:30:13,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:30:13,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:30:13,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:30:13,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:30:13,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-07-06 18:30:13,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:13,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:13,114 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) [2021-07-06 18:30:13,114 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 [2021-07-06 18:30:13,116 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 [2021-07-06 18:30:13,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:30:13,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:30:13,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:30:13,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:30:13,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:30:13,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:30:13,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:30:13,136 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-07-06 18:30:13,141 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-07-06 18:30:13,142 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-07-06 18:30:13,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:13,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:13,144 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) [2021-07-06 18:30:13,149 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 [2021-07-06 18:30:13,149 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-07-06 18:30:13,149 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-07-06 18:30:13,150 INFO L513 LassoAnalysis]: Proved termination. [2021-07-06 18:30:13,150 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2021-07-06 18:30:13,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-07-06 18:30:13,169 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-07-06 18:30:13,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:30:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:30:13,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-06 18:30:13,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:30:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:30:13,199 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-06 18:30:13,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:30:13,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 18:30:13,208 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 [2021-07-06 18:30:13,209 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) [2021-07-06 18:30:13,228 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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 19 states and 28 transitions. Complement of second has 5 states. [2021-07-06 18:30:13,229 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 [2021-07-06 18:30:13,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) [2021-07-06 18:30:13,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-07-06 18:30:13,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 1 letters. [2021-07-06 18:30:13,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:30:13,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 1 letters. [2021-07-06 18:30:13,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:30:13,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2021-07-06 18:30:13,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:30:13,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 28 transitions. [2021-07-06 18:30:13,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 18:30:13,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 5 states and 7 transitions. [2021-07-06 18:30:13,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-07-06 18:30:13,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-07-06 18:30:13,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2021-07-06 18:30:13,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 18:30:13,237 INFO L681 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-07-06 18:30:13,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2021-07-06 18:30:13,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2021-07-06 18:30:13,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:30:13,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-07-06 18:30:13,251 INFO L704 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2021-07-06 18:30:13,251 INFO L587 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2021-07-06 18:30:13,251 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 18:30:13,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2021-07-06 18:30:13,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 18:30:13,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:30:13,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:30:13,252 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-07-06 18:30:13,252 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:30:13,252 INFO L791 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 56#L11-2 assume !(main_~i~0 < 100); 57#L13-1 [2021-07-06 18:30:13,253 INFO L793 eck$LassoCheckResult]: Loop: 57#L13-1 assume !!(main_~j~0 < 21);main_~j~0 := 3 + main_~j~0; 57#L13-1 [2021-07-06 18:30:13,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:30:13,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2021-07-06 18:30:13,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:30:13,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937714512] [2021-07-06 18:30:13,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:30:13,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:30:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:30:13,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:30:13,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 18:30:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 18:30:13,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 18:30:13,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937714512] [2021-07-06 18:30:13,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937714512] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 18:30:13,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 18:30:13,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-06 18:30:13,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568135136] [2021-07-06 18:30:13,274 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-07-06 18:30:13,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:30:13,274 INFO L82 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2021-07-06 18:30:13,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:30:13,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505390964] [2021-07-06 18:30:13,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:30:13,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:30:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:13,277 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:13,279 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:13,279 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:30:13,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:30:13,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 18:30:13,288 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:30:13,288 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:30:13,288 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:30:13,289 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:30:13,289 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-07-06 18:30:13,289 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:13,289 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:30:13,289 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:30:13,289 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2021-07-06 18:30:13,289 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:30:13,289 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:30:13,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:13,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:13,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:13,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-07-06 18:30:13,347 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:30:13,347 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-07-06 18:30:13,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:13,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:13,349 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) [2021-07-06 18:30:13,350 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 [2021-07-06 18:30:13,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:30:13,351 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:30:13,363 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:30:13,363 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: [] [2021-07-06 18:30:13,378 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 [2021-07-06 18:30:13,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:13,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:13,379 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) [2021-07-06 18:30:13,380 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 [2021-07-06 18:30:13,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:30:13,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:30:13,404 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 [2021-07-06 18:30:13,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:13,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:13,405 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) [2021-07-06 18:30:13,405 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 [2021-07-06 18:30:13,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-07-06 18:30:13,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:30:13,433 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-07-06 18:30:13,436 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 [2021-07-06 18:30:13,437 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:30:13,437 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:30:13,437 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:30:13,437 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:30:13,437 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-07-06 18:30:13,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:13,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:30:13,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:30:13,437 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2021-07-06 18:30:13,437 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:30:13,437 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:30:13,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:13,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:13,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:13,479 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:30:13,479 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-07-06 18:30:13,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:13,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:13,480 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) [2021-07-06 18:30:13,492 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 [2021-07-06 18:30:13,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:30:13,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:30:13,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:30:13,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:30:13,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:30:13,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:30:13,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:30:13,503 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 [2021-07-06 18:30:13,511 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-07-06 18:30:13,520 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-07-06 18:30:13,521 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-07-06 18:30:13,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:13,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:13,521 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) [2021-07-06 18:30:13,522 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 [2021-07-06 18:30:13,524 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-07-06 18:30:13,524 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-07-06 18:30:13,524 INFO L513 LassoAnalysis]: Proved termination. [2021-07-06 18:30:13,524 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] [2021-07-06 18:30:13,539 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 [2021-07-06 18:30:13,540 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-07-06 18:30:13,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:30:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:30:13,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-06 18:30:13,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:30:13,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:30:13,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:30:13,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:30:13,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:30:13,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:30:13,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:30:13,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:30:13,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:30:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:30:13,567 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-06 18:30:13,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:30:13,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 18:30:13,567 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 [2021-07-06 18:30:13,568 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-07-06 18:30:13,570 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 5 states and 7 transitions. Complement of second has 2 states. [2021-07-06 18:30:13,570 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 [2021-07-06 18:30:13,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-07-06 18:30:13,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2021-07-06 18:30:13,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2021-07-06 18:30:13,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:30:13,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2021-07-06 18:30:13,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:30:13,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2021-07-06 18:30:13,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:30:13,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 7 transitions. [2021-07-06 18:30:13,572 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:30:13,572 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2021-07-06 18:30:13,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-07-06 18:30:13,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-07-06 18:30:13,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-07-06 18:30:13,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 18:30:13,572 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:30:13,572 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:30:13,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 18:30:13,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 18:30:13,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 18:30:13,580 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-07-06 18:30:13,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 18:30:13,582 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-07-06 18:30:13,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-06 18:30:13,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-07-06 18:30:13,585 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:30:13,585 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 18:30:13,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-07-06 18:30:13,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-07-06 18:30:13,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-07-06 18:30:13,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 18:30:13,585 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:30:13,586 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:30:13,586 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:30:13,586 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-07-06 18:30:13,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-07-06 18:30:13,586 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:30:13,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-07-06 18:30:13,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 06:30:13 BoogieIcfgContainer [2021-07-06 18:30:13,590 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 18:30:13,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 18:30:13,591 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 18:30:13,591 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 18:30:13,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:30:12" (3/4) ... [2021-07-06 18:30:13,593 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-06 18:30:13,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 18:30:13,594 INFO L168 Benchmark]: Toolchain (without parser) took 1559.42 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 44.5 MB in the beginning and 32.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2021-07-06 18:30:13,594 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 62.9 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:30:13,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.15 ms. Allocated memory is still 62.9 MB. Free memory was 44.3 MB in the beginning and 36.0 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 18:30:13,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.05 ms. Allocated memory is still 62.9 MB. Free memory was 36.0 MB in the beginning and 34.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:30:13,595 INFO L168 Benchmark]: Boogie Preprocessor took 10.74 ms. Allocated memory is still 62.9 MB. Free memory was 34.7 MB in the beginning and 33.8 MB in the end (delta: 871.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 18:30:13,597 INFO L168 Benchmark]: RCFGBuilder took 206.30 ms. Allocated memory is still 62.9 MB. Free memory was 33.8 MB in the beginning and 39.6 MB in the end (delta: -5.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 18:30:13,597 INFO L168 Benchmark]: BuchiAutomizer took 1170.20 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 39.6 MB in the beginning and 32.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2021-07-06 18:30:13,597 INFO L168 Benchmark]: Witness Printer took 2.69 ms. Allocated memory is still 77.6 MB. Free memory was 32.8 MB in the beginning and 32.6 MB in the end (delta: 213.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:30:13,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 62.9 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 146.15 ms. Allocated memory is still 62.9 MB. Free memory was 44.3 MB in the beginning and 36.0 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 18.05 ms. Allocated memory is still 62.9 MB. Free memory was 36.0 MB in the beginning and 34.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 10.74 ms. Allocated memory is still 62.9 MB. Free memory was 34.7 MB in the beginning and 33.8 MB in the end (delta: 871.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 206.30 ms. Allocated memory is still 62.9 MB. Free memory was 33.8 MB in the beginning and 39.6 MB in the end (delta: -5.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1170.20 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 39.6 MB in the beginning and 32.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. * Witness Printer took 2.69 ms. Allocated memory is still 77.6 MB. Free memory was 32.8 MB in the beginning and 32.6 MB in the end (delta: 213.6 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 199 + -2 * i and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 6.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 8 SDslu, 5 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-07-06 18:30:13,636 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 [2021-07-06 18:30:13,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...