./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/UpAndDown.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/UpAndDown.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 014f994c3374ea132faaa71956bb80ddfc4c8f9b 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Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 01:32:06,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 01:32:06,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 01:32:06,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 01:32:06,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 01:32:06,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 01:32:06,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 01:32:06,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 01:32:06,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 01:32:06,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 01:32:06,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 01:32:06,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 01:32:06,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 01:32:06,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 01:32:06,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 01:32:06,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 01:32:06,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 01:32:06,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 01:32:06,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 01:32:06,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 01:32:06,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 01:32:06,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 01:32:06,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 01:32:06,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 01:32:06,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 01:32:06,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 01:32:06,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 01:32:06,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 01:32:06,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 01:32:06,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 01:32:06,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 01:32:06,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 01:32:06,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 01:32:06,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 01:32:06,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 01:32:06,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 01:32:06,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 01:32:06,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 01:32:06,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 01:32:06,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 01:32:06,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 01:32:06,646 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-31 01:32:06,674 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 01:32:06,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 01:32:06,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 01:32:06,675 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 01:32:06,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 01:32:06,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 01:32:06,677 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 01:32:06,677 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 01:32:06,677 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 01:32:06,677 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 01:32:06,678 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 01:32:06,678 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 01:32:06,678 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 01:32:06,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 01:32:06,679 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 01:32:06,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 01:32:06,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 01:32:06,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 01:32:06,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 01:32:06,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 01:32:06,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 01:32:06,680 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 01:32:06,680 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 01:32:06,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 01:32:06,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 01:32:06,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 01:32:06,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 01:32:06,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 01:32:06,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 01:32:06,682 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 01:32:06,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 014f994c3374ea132faaa71956bb80ddfc4c8f9b [2021-08-31 01:32:06,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 01:32:06,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 01:32:06,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 01:32:06,953 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 01:32:06,953 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 01:32:06,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2021-08-31 01:32:06,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d15c3079/df3bb6a436cb4131b96daa7355cb2f09/FLAG64f658a17 [2021-08-31 01:32:07,323 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 01:32:07,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2021-08-31 01:32:07,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d15c3079/df3bb6a436cb4131b96daa7355cb2f09/FLAG64f658a17 [2021-08-31 01:32:07,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d15c3079/df3bb6a436cb4131b96daa7355cb2f09 [2021-08-31 01:32:07,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 01:32:07,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 01:32:07,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 01:32:07,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 01:32:07,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 01:32:07,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:32:07" (1/1) ... [2021-08-31 01:32:07,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54acc4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07, skipping insertion in model container [2021-08-31 01:32:07,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:32:07" (1/1) ... [2021-08-31 01:32:07,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 01:32:07,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 01:32:07,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:32:07,468 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 01:32:07,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:32:07,486 INFO L208 MainTranslator]: Completed translation [2021-08-31 01:32:07,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07 WrapperNode [2021-08-31 01:32:07,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 01:32:07,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 01:32:07,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 01:32:07,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 01:32:07,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07" (1/1) ... [2021-08-31 01:32:07,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07" (1/1) ... [2021-08-31 01:32:07,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 01:32:07,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 01:32:07,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 01:32:07,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 01:32:07,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07" (1/1) ... [2021-08-31 01:32:07,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07" (1/1) ... [2021-08-31 01:32:07,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07" (1/1) ... [2021-08-31 01:32:07,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07" (1/1) ... [2021-08-31 01:32:07,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07" (1/1) ... [2021-08-31 01:32:07,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07" (1/1) ... [2021-08-31 01:32:07,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07" (1/1) ... [2021-08-31 01:32:07,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 01:32:07,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 01:32:07,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 01:32:07,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 01:32:07,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07" (1/1) ... [2021-08-31 01:32:07,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:07,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:07,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:07,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-31 01:32:07,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 01:32:07,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 01:32:07,730 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 01:32:07,730 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-31 01:32:07,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:32:07 BoogieIcfgContainer [2021-08-31 01:32:07,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 01:32:07,733 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 01:32:07,733 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 01:32:07,735 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 01:32:07,735 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:32:07,735 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 01:32:07" (1/3) ... [2021-08-31 01:32:07,736 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ccd12dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:32:07, skipping insertion in model container [2021-08-31 01:32:07,736 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:32:07,736 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:07" (2/3) ... [2021-08-31 01:32:07,737 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ccd12dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:32:07, skipping insertion in model container [2021-08-31 01:32:07,737 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:32:07,737 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:32:07" (3/3) ... [2021-08-31 01:32:07,738 INFO L389 chiAutomizerObserver]: Analyzing ICFG UpAndDown.c [2021-08-31 01:32:07,782 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 01:32:07,783 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 01:32:07,783 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 01:32:07,784 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 01:32:07,784 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 01:32:07,784 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 01:32:07,784 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 01:32:07,784 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 01:32:07,793 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) [2021-08-31 01:32:07,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-31 01:32:07,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:07,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:07,810 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-31 01:32:07,811 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:07,811 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 01:32:07,811 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) [2021-08-31 01:32:07,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-31 01:32:07,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:07,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:07,812 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-31 01:32:07,812 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:07,817 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 6#L18-1true [2021-08-31 01:32:07,822 INFO L793 eck$LassoCheckResult]: Loop: 6#L18-1true assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10#L12true assume 10 == main_~i~0;main_~up~0 := 0; 3#L12-2true assume 0 == main_~i~0;main_~up~0 := 1; 8#L15-1true assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 6#L18-1true [2021-08-31 01:32:07,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:07,829 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-08-31 01:32:07,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:07,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942872155] [2021-08-31 01:32:07,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:07,836 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:07,884 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:07,898 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:07,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:07,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1234538, now seen corresponding path program 1 times [2021-08-31 01:32:07,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:07,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496879342] [2021-08-31 01:32:07,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:07,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:07,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:07,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:07,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496879342] [2021-08-31 01:32:07,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496879342] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 01:32:07,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 01:32:07,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 01:32:07,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607219788] [2021-08-31 01:32:07,995 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 01:32:07,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:08,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 01:32:08,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 01:32:08,021 INFO L87 Difference]: Start difference. 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:08,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:08,066 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2021-08-31 01:32:08,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 01:32:08,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2021-08-31 01:32:08,072 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-31 01:32:08,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 9 states and 14 transitions. [2021-08-31 01:32:08,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-08-31 01:32:08,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-08-31 01:32:08,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 14 transitions. [2021-08-31 01:32:08,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 01:32:08,076 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2021-08-31 01:32:08,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 14 transitions. [2021-08-31 01:32:08,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-31 01:32:08,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:08,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2021-08-31 01:32:08,092 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2021-08-31 01:32:08,092 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2021-08-31 01:32:08,092 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 01:32:08,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 14 transitions. [2021-08-31 01:32:08,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-31 01:32:08,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:08,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:08,093 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-31 01:32:08,093 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:08,094 INFO L791 eck$LassoCheckResult]: Stem: 37#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 38#L18-1 [2021-08-31 01:32:08,094 INFO L793 eck$LassoCheckResult]: Loop: 38#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 43#L12 assume 10 == main_~i~0;main_~up~0 := 0; 35#L12-2 assume !(0 == main_~i~0); 36#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 38#L18-1 [2021-08-31 01:32:08,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:08,094 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-08-31 01:32:08,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:08,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212672704] [2021-08-31 01:32:08,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:08,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:08,098 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:08,100 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:08,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:08,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1234602, now seen corresponding path program 1 times [2021-08-31 01:32:08,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:08,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989302831] [2021-08-31 01:32:08,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:08,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:08,105 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:08,109 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:08,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:08,110 INFO L82 PathProgramCache]: Analyzing trace with hash 29863753, now seen corresponding path program 1 times [2021-08-31 01:32:08,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:08,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454268076] [2021-08-31 01:32:08,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:08,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:08,114 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:08,118 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:08,176 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:08,177 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:08,177 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:08,177 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:08,177 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:08,177 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,177 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:08,177 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:08,178 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2021-08-31 01:32:08,178 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:08,178 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:08,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:08,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:08,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:08,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:08,237 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:08,237 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:08,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:08,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:08,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-31 01:32:08,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:08,307 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:08,322 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:08,323 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:08,339 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 [2021-08-31 01:32:08,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:08,342 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:08,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-31 01:32:08,346 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:08,346 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:08,357 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:08,358 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:08,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:08,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:08,391 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:08,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-31 01:32:08,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:08,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:08,421 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:08,421 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=0} Honda state: {ULTIMATE.start_main_~up~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:08,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-08-31 01:32:08,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:08,450 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:08,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:08,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:08,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-31 01:32:08,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:08,491 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:08,491 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:08,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-31 01:32:08,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:08,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:08,506 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:08,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:08,523 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:08,523 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:08,523 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:08,523 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:08,523 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:08,523 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,523 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:08,523 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:08,523 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2021-08-31 01:32:08,523 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:08,523 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:08,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:08,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:08,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:08,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:08,594 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:08,597 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:08,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:08,613 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:08,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-31 01:32:08,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:08,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:08,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:08,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:08,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:08,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:08,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:08,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:08,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:08,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:08,704 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:08,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-31 01:32:08,708 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:08,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:08,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:08,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:08,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:08,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:08,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:08,737 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:08,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:08,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:08,754 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:08,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-31 01:32:08,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:08,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:08,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:08,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:08,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:08,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:08,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:08,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:08,792 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:08,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:08,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:08,809 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:08,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-31 01:32:08,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:08,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:08,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:08,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:08,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:08,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:08,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:08,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:08,835 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:08,838 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:08,839 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 01:32:08,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:08,843 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:08,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-31 01:32:08,849 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:08,849 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:08,849 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:08,849 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-31 01:32:08,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:08,867 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:08,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:08,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:08,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:08,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:08,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:08,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:08,920 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-31 01:32:08,921 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 14 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:08,950 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 14 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 37 transitions. Complement of second has 7 states. [2021-08-31 01:32:08,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:08,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:08,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-08-31 01:32:08,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 4 letters. [2021-08-31 01:32:08,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:08,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 4 letters. [2021-08-31 01:32:08,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:08,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 8 letters. [2021-08-31 01:32:08,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:08,955 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 37 transitions. [2021-08-31 01:32:08,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-08-31 01:32:08,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 37 transitions. [2021-08-31 01:32:08,956 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-08-31 01:32:08,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-08-31 01:32:08,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 37 transitions. [2021-08-31 01:32:08,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:08,957 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 37 transitions. [2021-08-31 01:32:08,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 37 transitions. [2021-08-31 01:32:08,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-08-31 01:32:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 22 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:08,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2021-08-31 01:32:08,959 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2021-08-31 01:32:08,960 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2021-08-31 01:32:08,960 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 01:32:08,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 35 transitions. [2021-08-31 01:32:08,960 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-08-31 01:32:08,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:08,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:08,961 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:32:08,961 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:08,961 INFO L791 eck$LassoCheckResult]: Stem: 115#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 116#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 112#L12 [2021-08-31 01:32:08,961 INFO L793 eck$LassoCheckResult]: Loop: 112#L12 assume !(10 == main_~i~0); 119#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 122#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 111#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 112#L12 [2021-08-31 01:32:08,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:08,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-08-31 01:32:08,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:08,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988378334] [2021-08-31 01:32:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:08,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:08,965 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:08,967 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:08,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:08,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1389492, now seen corresponding path program 1 times [2021-08-31 01:32:08,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:08,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895391539] [2021-08-31 01:32:08,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:08,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:08,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:08,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895391539] [2021-08-31 01:32:08,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895391539] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 01:32:08,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 01:32:08,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 01:32:08,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532526375] [2021-08-31 01:32:08,980 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 01:32:08,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:08,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 01:32:08,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 01:32:08,981 INFO L87 Difference]: Start difference. First operand 23 states and 35 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:08,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:08,995 INFO L93 Difference]: Finished difference Result 31 states and 44 transitions. [2021-08-31 01:32:08,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 01:32:08,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 44 transitions. [2021-08-31 01:32:08,997 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-08-31 01:32:08,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 30 states and 43 transitions. [2021-08-31 01:32:08,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2021-08-31 01:32:08,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2021-08-31 01:32:08,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 43 transitions. [2021-08-31 01:32:08,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:08,998 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 43 transitions. [2021-08-31 01:32:08,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 43 transitions. [2021-08-31 01:32:09,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2021-08-31 01:32:09,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 26 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:09,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2021-08-31 01:32:09,001 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions. [2021-08-31 01:32:09,001 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions. [2021-08-31 01:32:09,001 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 01:32:09,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 40 transitions. [2021-08-31 01:32:09,002 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-08-31 01:32:09,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:09,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:09,002 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:32:09,002 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:09,002 INFO L791 eck$LassoCheckResult]: Stem: 171#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 172#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 179#L12 [2021-08-31 01:32:09,003 INFO L793 eck$LassoCheckResult]: Loop: 179#L12 assume !(10 == main_~i~0); 180#L12-2 assume !(0 == main_~i~0); 188#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 187#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 179#L12 [2021-08-31 01:32:09,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 2 times [2021-08-31 01:32:09,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:09,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645604963] [2021-08-31 01:32:09,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:09,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,006 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:09,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1391414, now seen corresponding path program 1 times [2021-08-31 01:32:09,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:09,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693304902] [2021-08-31 01:32:09,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:09,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,012 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,014 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:09,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,015 INFO L82 PathProgramCache]: Analyzing trace with hash 925835935, now seen corresponding path program 1 times [2021-08-31 01:32:09,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:09,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838665809] [2021-08-31 01:32:09,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:09,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,018 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,021 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:09,048 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:09,048 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:09,048 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:09,048 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:09,048 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:09,049 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,049 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:09,049 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:09,049 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop [2021-08-31 01:32:09,049 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:09,049 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:09,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,112 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:09,112 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:09,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,113 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:09,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:09,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-31 01:32:09,162 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:09,162 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:09,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,181 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,182 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-31 01:32:09,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:09,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:09,205 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:09,205 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:09,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,224 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-31 01:32:09,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:09,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:09,248 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:09,248 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=4} Honda state: {ULTIMATE.start_main_~up~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:09,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,266 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-31 01:32:09,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:09,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:09,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,308 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-31 01:32:09,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:09,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:09,398 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:09,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,404 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:09,404 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:09,404 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:09,404 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:09,404 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:09,404 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,404 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:09,404 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:09,404 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop [2021-08-31 01:32:09,404 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:09,404 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:09,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,477 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:09,477 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:09,478 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,478 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-31 01:32:09,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:09,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:09,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:09,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:09,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:09,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:09,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:09,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:09,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,546 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-31 01:32:09,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:09,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:09,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:09,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:09,555 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-31 01:32:09,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:09,556 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-31 01:32:09,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:09,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:09,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,592 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-31 01:32:09,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:09,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:09,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:09,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:09,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:09,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:09,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:09,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:09,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,661 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:09,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:09,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:09,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:09,674 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-31 01:32:09,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:09,675 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-31 01:32:09,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:09,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-31 01:32:09,695 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:09,697 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:09,697 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 01:32:09,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,698 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,704 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:09,704 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:09,704 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:09,704 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-31 01:32:09,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-31 01:32:09,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,746 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:09,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:09,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:09,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:09,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:09,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:09,797 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-31 01:32:09,797 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 40 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:09,815 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 40 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 59 transitions. Complement of second has 7 states. [2021-08-31 01:32:09,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:09,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:09,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-08-31 01:32:09,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2021-08-31 01:32:09,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:09,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-08-31 01:32:09,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:09,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters. [2021-08-31 01:32:09,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:09,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 59 transitions. [2021-08-31 01:32:09,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2021-08-31 01:32:09,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 33 states and 48 transitions. [2021-08-31 01:32:09,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-08-31 01:32:09,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-08-31 01:32:09,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 48 transitions. [2021-08-31 01:32:09,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:09,820 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 48 transitions. [2021-08-31 01:32:09,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 48 transitions. [2021-08-31 01:32:09,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2021-08-31 01:32:09,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.5) internal successors, (42), 27 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:09,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2021-08-31 01:32:09,822 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 42 transitions. [2021-08-31 01:32:09,822 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 42 transitions. [2021-08-31 01:32:09,822 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-31 01:32:09,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 42 transitions. [2021-08-31 01:32:09,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2021-08-31 01:32:09,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:09,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:09,823 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-31 01:32:09,823 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:09,824 INFO L791 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 288#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 296#L12 assume 10 == main_~i~0;main_~up~0 := 0; 279#L12-2 [2021-08-31 01:32:09,824 INFO L793 eck$LassoCheckResult]: Loop: 279#L12-2 assume !(0 == main_~i~0); 280#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 283#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 284#L12 assume !(10 == main_~i~0); 279#L12-2 [2021-08-31 01:32:09,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,824 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-08-31 01:32:09,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:09,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561296997] [2021-08-31 01:32:09,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:09,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,827 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,830 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:09,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1573482, now seen corresponding path program 1 times [2021-08-31 01:32:09,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:09,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618819106] [2021-08-31 01:32:09,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:09,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,833 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,840 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:09,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1365706036, now seen corresponding path program 1 times [2021-08-31 01:32:09,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:09,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61878592] [2021-08-31 01:32:09,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:09,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:09,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:09,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:09,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61878592] [2021-08-31 01:32:09,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61878592] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 01:32:09,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 01:32:09,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 01:32:09,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474824260] [2021-08-31 01:32:09,876 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:09,876 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:09,876 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:09,876 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:09,876 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:09,876 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,876 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:09,876 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:09,876 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2021-08-31 01:32:09,876 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:09,877 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:09,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,994 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:09,994 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:09,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,013 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-31 01:32:10,065 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:10,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,083 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:10,084 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=1} Honda state: {ULTIMATE.start_main_~up~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:10,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,103 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-08-31 01:32:10,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:10,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,126 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:10,126 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:10,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,145 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-08-31 01:32:10,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:10,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,187 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-08-31 01:32:10,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:10,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,361 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:10,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,366 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:10,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:10,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:10,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:10,366 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:10,366 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:10,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:10,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2021-08-31 01:32:10,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:10,366 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:10,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:10,455 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:10,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,456 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-08-31 01:32:10,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:10,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:10,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:10,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:10,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:10,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:10,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:10,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:10,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:10,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,498 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-31 01:32:10,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:10,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:10,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:10,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:10,506 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-31 01:32:10,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:10,507 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-31 01:32:10,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:10,522 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:10,524 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:10,524 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:32:10,525 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,525 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) [2021-08-31 01:32:10,526 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 [2021-08-31 01:32:10,527 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:10,527 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:10,528 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:10,528 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 17 Supporting invariants [] [2021-08-31 01:32:10,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,546 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:10,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:10,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:10,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:10,566 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-31 01:32:10,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:10,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:10,593 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-31 01:32:10,593 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 42 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:10,632 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 42 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 78 states and 116 transitions. Complement of second has 9 states. [2021-08-31 01:32:10,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:10,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:10,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2021-08-31 01:32:10,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 3 letters. Loop has 4 letters. [2021-08-31 01:32:10,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:10,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 7 letters. Loop has 4 letters. [2021-08-31 01:32:10,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:10,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 3 letters. Loop has 8 letters. [2021-08-31 01:32:10,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:10,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 116 transitions. [2021-08-31 01:32:10,635 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 31 [2021-08-31 01:32:10,636 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 77 states and 115 transitions. [2021-08-31 01:32:10,636 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-08-31 01:32:10,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-08-31 01:32:10,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 115 transitions. [2021-08-31 01:32:10,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:10,636 INFO L681 BuchiCegarLoop]: Abstraction has 77 states and 115 transitions. [2021-08-31 01:32:10,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 115 transitions. [2021-08-31 01:32:10,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 63. [2021-08-31 01:32:10,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.5555555555555556) internal successors, (98), 62 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:10,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 98 transitions. [2021-08-31 01:32:10,640 INFO L704 BuchiCegarLoop]: Abstraction has 63 states and 98 transitions. [2021-08-31 01:32:10,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:10,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 01:32:10,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 01:32:10,641 INFO L87 Difference]: Start difference. First operand 63 states and 98 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:10,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:10,649 INFO L93 Difference]: Finished difference Result 44 states and 60 transitions. [2021-08-31 01:32:10,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 01:32:10,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 60 transitions. [2021-08-31 01:32:10,651 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-08-31 01:32:10,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 37 states and 50 transitions. [2021-08-31 01:32:10,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-08-31 01:32:10,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-08-31 01:32:10,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 50 transitions. [2021-08-31 01:32:10,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:10,652 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2021-08-31 01:32:10,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 50 transitions. [2021-08-31 01:32:10,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 24. [2021-08-31 01:32:10,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2021-08-31 01:32:10,653 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-08-31 01:32:10,653 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-08-31 01:32:10,653 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-31 01:32:10,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2021-08-31 01:32:10,654 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-08-31 01:32:10,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:10,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:10,654 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-31 01:32:10,654 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:10,654 INFO L791 eck$LassoCheckResult]: Stem: 550#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 551#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 554#L12 assume !(10 == main_~i~0); 553#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 559#L15-1 [2021-08-31 01:32:10,655 INFO L793 eck$LassoCheckResult]: Loop: 559#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 560#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 565#L12 assume !(10 == main_~i~0); 564#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 559#L15-1 [2021-08-31 01:32:10,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:10,655 INFO L82 PathProgramCache]: Analyzing trace with hash 963406, now seen corresponding path program 1 times [2021-08-31 01:32:10,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:10,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765324978] [2021-08-31 01:32:10,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:10,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:10,675 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 [2021-08-31 01:32:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,691 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,698 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:10,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:10,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1678390, now seen corresponding path program 1 times [2021-08-31 01:32:10,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:10,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618125982] [2021-08-31 01:32:10,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:10,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,703 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,709 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:10,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:10,711 INFO L82 PathProgramCache]: Analyzing trace with hash 668197123, now seen corresponding path program 1 times [2021-08-31 01:32:10,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:10,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94847575] [2021-08-31 01:32:10,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:10,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:10,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:10,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94847575] [2021-08-31 01:32:10,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94847575] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 01:32:10,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 01:32:10,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 01:32:10,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125322678] [2021-08-31 01:32:10,750 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:10,750 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:10,750 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:10,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:10,751 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:10,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:10,751 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:10,751 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2021-08-31 01:32:10,751 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:10,751 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:10,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,794 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:10,794 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:10,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,795 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-08-31 01:32:10,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:10,810 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,851 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:10,855 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-08-31 01:32:10,900 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:10,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-08-31 01:32:10,908 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:10,908 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:10,908 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:10,908 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:10,908 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:10,908 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,908 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:10,908 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:10,908 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2021-08-31 01:32:10,908 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:10,908 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:10,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,960 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:10,960 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:10,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,961 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-08-31 01:32:11,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:11,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:11,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:11,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:11,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:11,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:11,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:11,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:11,034 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:11,037 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:11,037 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 01:32:11,037 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,037 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-08-31 01:32:11,045 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:11,045 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:11,045 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:11,045 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-31 01:32:11,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,062 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:11,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:11,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:11,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:11,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:11,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:11,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:11,096 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-31 01:32:11,096 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,125 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 51 states and 68 transitions. Complement of second has 7 states. [2021-08-31 01:32:11,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:11,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-08-31 01:32:11,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 4 letters. [2021-08-31 01:32:11,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:11,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 4 letters. [2021-08-31 01:32:11,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:11,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 8 letters. [2021-08-31 01:32:11,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:11,127 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 68 transitions. [2021-08-31 01:32:11,127 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-08-31 01:32:11,128 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 49 states and 65 transitions. [2021-08-31 01:32:11,128 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-08-31 01:32:11,128 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-08-31 01:32:11,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 65 transitions. [2021-08-31 01:32:11,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:11,128 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 65 transitions. [2021-08-31 01:32:11,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 65 transitions. [2021-08-31 01:32:11,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2021-08-31 01:32:11,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 43 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2021-08-31 01:32:11,131 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-08-31 01:32:11,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:11,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-31 01:32:11,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-31 01:32:11,131 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:11,144 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2021-08-31 01:32:11,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-31 01:32:11,144 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 59 transitions. [2021-08-31 01:32:11,145 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-08-31 01:32:11,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 36 states and 47 transitions. [2021-08-31 01:32:11,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-08-31 01:32:11,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-08-31 01:32:11,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 47 transitions. [2021-08-31 01:32:11,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:11,146 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2021-08-31 01:32:11,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 47 transitions. [2021-08-31 01:32:11,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2021-08-31 01:32:11,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2021-08-31 01:32:11,147 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2021-08-31 01:32:11,147 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2021-08-31 01:32:11,147 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-08-31 01:32:11,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 32 transitions. [2021-08-31 01:32:11,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-08-31 01:32:11,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:11,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:11,148 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-31 01:32:11,148 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:11,148 INFO L791 eck$LassoCheckResult]: Stem: 761#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 762#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 774#L12 assume !(10 == main_~i~0); 772#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 758#L15-1 [2021-08-31 01:32:11,148 INFO L793 eck$LassoCheckResult]: Loop: 758#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 779#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 769#L12 assume !(10 == main_~i~0); 757#L12-2 assume !(0 == main_~i~0); 758#L15-1 [2021-08-31 01:32:11,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,149 INFO L82 PathProgramCache]: Analyzing trace with hash 963406, now seen corresponding path program 2 times [2021-08-31 01:32:11,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:11,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515908706] [2021-08-31 01:32:11,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:11,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,152 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,154 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:11,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1678392, now seen corresponding path program 2 times [2021-08-31 01:32:11,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:11,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180256539] [2021-08-31 01:32:11,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:11,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,157 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,158 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:11,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,159 INFO L82 PathProgramCache]: Analyzing trace with hash 668197125, now seen corresponding path program 1 times [2021-08-31 01:32:11,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:11,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753761222] [2021-08-31 01:32:11,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:11,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,162 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,165 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:11,184 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:11,185 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:11,185 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:11,185 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:11,185 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:11,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:11,185 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:11,185 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2021-08-31 01:32:11,185 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:11,185 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:11,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,259 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:11,259 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:11,259 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,260 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-08-31 01:32:11,263 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:11,263 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,283 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:11,284 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=1} Honda state: {ULTIMATE.start_main_~up~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:11,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,300 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,301 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-08-31 01:32:11,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:11,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,324 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:11,324 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:11,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,343 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-08-31 01:32:11,345 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:11,345 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,366 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:11,366 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:11,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,383 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-08-31 01:32:11,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:11,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,435 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-08-31 01:32:11,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:11,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,529 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:11,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,538 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:11,538 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:11,538 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:11,539 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:11,539 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:11,539 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,539 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:11,539 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:11,539 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2021-08-31 01:32:11,539 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:11,539 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:11,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,591 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:11,592 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:11,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,602 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-08-31 01:32:11,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:11,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:11,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:11,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:11,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:11,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:11,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:11,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:11,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,644 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,645 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-08-31 01:32:11,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:11,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:11,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:11,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:11,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:11,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:11,654 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:11,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:11,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:11,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,696 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-08-31 01:32:11,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:11,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:11,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:11,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:11,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:11,707 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:11,707 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:11,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:11,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-08-31 01:32:11,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,726 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-08-31 01:32:11,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:11,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:11,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:11,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:11,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:11,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:11,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:11,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:11,737 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:11,738 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:11,738 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:32:11,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,739 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,744 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:11,744 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:11,744 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:11,744 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 17 Supporting invariants [] [2021-08-31 01:32:11,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-08-31 01:32:11,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-08-31 01:32:11,760 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:11,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:11,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:11,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:11,781 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-31 01:32:11,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:11,844 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-08-31 01:32:11,844 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,885 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 62 transitions. Complement of second has 9 states. [2021-08-31 01:32:11,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:11,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2021-08-31 01:32:11,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 4 letters. [2021-08-31 01:32:11,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:11,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 8 letters. Loop has 4 letters. [2021-08-31 01:32:11,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:11,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 8 letters. [2021-08-31 01:32:11,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:11,887 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 62 transitions. [2021-08-31 01:32:11,887 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-08-31 01:32:11,888 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 46 states and 59 transitions. [2021-08-31 01:32:11,888 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-08-31 01:32:11,888 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-08-31 01:32:11,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 59 transitions. [2021-08-31 01:32:11,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:11,888 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 59 transitions. [2021-08-31 01:32:11,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 59 transitions. [2021-08-31 01:32:11,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2021-08-31 01:32:11,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 41 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2021-08-31 01:32:11,890 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 55 transitions. [2021-08-31 01:32:11,890 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 55 transitions. [2021-08-31 01:32:11,890 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-08-31 01:32:11,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 55 transitions. [2021-08-31 01:32:11,891 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-08-31 01:32:11,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:11,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:11,891 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-31 01:32:11,891 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-08-31 01:32:11,891 INFO L791 eck$LassoCheckResult]: Stem: 890#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 891#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 897#L12 assume !(10 == main_~i~0); 902#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 898#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 886#L18-1 [2021-08-31 01:32:11,891 INFO L793 eck$LassoCheckResult]: Loop: 886#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 887#L12 assume 10 == main_~i~0;main_~up~0 := 0; 895#L12-2 assume !(0 == main_~i~0); 892#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 893#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 922#L12 assume !(10 == main_~i~0); 917#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 905#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 886#L18-1 [2021-08-31 01:32:11,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,892 INFO L82 PathProgramCache]: Analyzing trace with hash 29865611, now seen corresponding path program 2 times [2021-08-31 01:32:11,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:11,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212710218] [2021-08-31 01:32:11,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:11,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,902 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,908 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:11,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,909 INFO L82 PathProgramCache]: Analyzing trace with hash 2014853141, now seen corresponding path program 1 times [2021-08-31 01:32:11,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:11,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790422550] [2021-08-31 01:32:11,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:11,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:11,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:11,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:11,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790422550] [2021-08-31 01:32:11,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790422550] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:11,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481988857] [2021-08-31 01:32:11,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:11,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:11,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,935 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-08-31 01:32:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:11,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-31 01:32:11,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:11,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:11,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:12,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:12,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481988857] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:12,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:12,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-08-31 01:32:12,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027069688] [2021-08-31 01:32:12,019 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 01:32:12,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:12,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-31 01:32:12,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-31 01:32:12,020 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. cyclomatic complexity: 18 Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:12,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:12,072 INFO L93 Difference]: Finished difference Result 80 states and 97 transitions. [2021-08-31 01:32:12,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-31 01:32:12,073 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 97 transitions. [2021-08-31 01:32:12,073 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2021-08-31 01:32:12,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 72 states and 89 transitions. [2021-08-31 01:32:12,074 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-08-31 01:32:12,074 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-08-31 01:32:12,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 89 transitions. [2021-08-31 01:32:12,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:12,074 INFO L681 BuchiCegarLoop]: Abstraction has 72 states and 89 transitions. [2021-08-31 01:32:12,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 89 transitions. [2021-08-31 01:32:12,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 53. [2021-08-31 01:32:12,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 52 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:12,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2021-08-31 01:32:12,076 INFO L704 BuchiCegarLoop]: Abstraction has 53 states and 66 transitions. [2021-08-31 01:32:12,076 INFO L587 BuchiCegarLoop]: Abstraction has 53 states and 66 transitions. [2021-08-31 01:32:12,076 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-08-31 01:32:12,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 66 transitions. [2021-08-31 01:32:12,077 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2021-08-31 01:32:12,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:12,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:12,077 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-08-31 01:32:12,077 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:12,078 INFO L791 eck$LassoCheckResult]: Stem: 1063#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 1064#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1082#L12 assume !(10 == main_~i~0); 1079#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 1078#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 1059#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1060#L12 assume 10 == main_~i~0;main_~up~0 := 0; 1055#L12-2 [2021-08-31 01:32:12,078 INFO L793 eck$LassoCheckResult]: Loop: 1055#L12-2 assume !(0 == main_~i~0); 1056#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 1065#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1096#L12 assume 10 == main_~i~0;main_~up~0 := 0; 1055#L12-2 [2021-08-31 01:32:12,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:12,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1363918578, now seen corresponding path program 1 times [2021-08-31 01:32:12,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:12,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676131732] [2021-08-31 01:32:12,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:12,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:12,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:12,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:12,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676131732] [2021-08-31 01:32:12,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676131732] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 01:32:12,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 01:32:12,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 01:32:12,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572282849] [2021-08-31 01:32:12,090 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 01:32:12,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:12,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1575402, now seen corresponding path program 2 times [2021-08-31 01:32:12,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:12,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141672876] [2021-08-31 01:32:12,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:12,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:12,092 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:12,094 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:12,111 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:12,112 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:12,112 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:12,112 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:12,112 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:12,112 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,112 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:12,112 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:12,112 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration9_Loop [2021-08-31 01:32:12,112 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:12,112 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:12,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,154 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:12,154 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:12,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,155 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-08-31 01:32:12,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:12,157 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:12,178 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:12,178 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=0} Honda state: {ULTIMATE.start_main_~up~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:12,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,193 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,194 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-08-31 01:32:12,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:12,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:12,217 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:12,217 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:12,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,233 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-08-31 01:32:12,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:12,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:12,251 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:12,251 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:12,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,267 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-08-31 01:32:12,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:12,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:12,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,304 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,304 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-08-31 01:32:12,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:12,307 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:12,383 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:12,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,386 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:12,386 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:12,387 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:12,387 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:12,387 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:12,387 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,387 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:12,387 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:12,387 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration9_Loop [2021-08-31 01:32:12,387 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:12,387 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:12,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,435 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:12,435 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:12,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,436 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-08-31 01:32:12,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:12,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:12,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:12,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:12,445 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-31 01:32:12,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:12,446 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-31 01:32:12,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:12,470 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:12,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,486 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-08-31 01:32:12,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:12,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:12,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:12,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:12,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:12,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:12,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:12,510 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:12,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,526 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-08-31 01:32:12,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:12,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:12,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:12,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:12,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:12,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:12,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:12,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:12,550 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:12,551 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-08-31 01:32:12,551 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:32:12,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,552 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-08-31 01:32:12,554 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:12,554 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:12,554 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:12,554 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-31 01:32:12,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,570 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:12,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:12,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:12,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:12,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:12,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:12,611 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-31 01:32:12,611 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 66 transitions. cyclomatic complexity: 17 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:12,638 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 66 transitions. cyclomatic complexity: 17. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 122 states and 151 transitions. Complement of second has 7 states. [2021-08-31 01:32:12,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:12,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-08-31 01:32:12,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2021-08-31 01:32:12,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:12,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2021-08-31 01:32:12,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:12,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 8 letters. [2021-08-31 01:32:12,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:12,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 122 states and 151 transitions. [2021-08-31 01:32:12,641 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2021-08-31 01:32:12,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 122 states to 91 states and 113 transitions. [2021-08-31 01:32:12,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-08-31 01:32:12,642 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2021-08-31 01:32:12,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 113 transitions. [2021-08-31 01:32:12,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:12,642 INFO L681 BuchiCegarLoop]: Abstraction has 91 states and 113 transitions. [2021-08-31 01:32:12,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 113 transitions. [2021-08-31 01:32:12,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2021-08-31 01:32:12,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 84 states have (on average 1.25) internal successors, (105), 83 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:12,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 105 transitions. [2021-08-31 01:32:12,645 INFO L704 BuchiCegarLoop]: Abstraction has 84 states and 105 transitions. [2021-08-31 01:32:12,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:12,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-31 01:32:12,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-31 01:32:12,645 INFO L87 Difference]: Start difference. First operand 84 states and 105 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:12,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:12,657 INFO L93 Difference]: Finished difference Result 103 states and 124 transitions. [2021-08-31 01:32:12,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-31 01:32:12,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 124 transitions. [2021-08-31 01:32:12,659 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2021-08-31 01:32:12,660 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 99 states and 120 transitions. [2021-08-31 01:32:12,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-08-31 01:32:12,660 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-08-31 01:32:12,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 120 transitions. [2021-08-31 01:32:12,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:12,660 INFO L681 BuchiCegarLoop]: Abstraction has 99 states and 120 transitions. [2021-08-31 01:32:12,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 120 transitions. [2021-08-31 01:32:12,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2021-08-31 01:32:12,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 87 states have (on average 1.2183908045977012) internal successors, (106), 86 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:12,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2021-08-31 01:32:12,663 INFO L704 BuchiCegarLoop]: Abstraction has 87 states and 106 transitions. [2021-08-31 01:32:12,663 INFO L587 BuchiCegarLoop]: Abstraction has 87 states and 106 transitions. [2021-08-31 01:32:12,663 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-08-31 01:32:12,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states and 106 transitions. [2021-08-31 01:32:12,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2021-08-31 01:32:12,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:12,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:12,664 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 2, 1, 1] [2021-08-31 01:32:12,664 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:12,664 INFO L791 eck$LassoCheckResult]: Stem: 1479#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 1480#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1503#L12 assume 10 == main_~i~0;main_~up~0 := 0; 1523#L12-2 assume !(0 == main_~i~0); 1522#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 1521#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1520#L12 assume !(10 == main_~i~0); 1519#L12-2 assume !(0 == main_~i~0); 1518#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 1517#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1516#L12 assume !(10 == main_~i~0); 1515#L12-2 assume !(0 == main_~i~0); 1514#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 1513#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1512#L12 assume !(10 == main_~i~0); 1510#L12-2 assume !(0 == main_~i~0); 1511#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 1504#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1505#L12 assume !(10 == main_~i~0); 1497#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 1498#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 1559#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1488#L12 assume !(10 == main_~i~0); 1476#L12-2 assume !(0 == main_~i~0); 1478#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 1560#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1494#L12 assume 10 == main_~i~0;main_~up~0 := 0; 1493#L12-2 [2021-08-31 01:32:12,665 INFO L793 eck$LassoCheckResult]: Loop: 1493#L12-2 assume !(0 == main_~i~0); 1491#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 1492#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1495#L12 assume 10 == main_~i~0;main_~up~0 := 0; 1493#L12-2 [2021-08-31 01:32:12,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:12,665 INFO L82 PathProgramCache]: Analyzing trace with hash -743871327, now seen corresponding path program 1 times [2021-08-31 01:32:12,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:12,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633517298] [2021-08-31 01:32:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:12,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:12,706 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-31 01:32:12,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:12,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633517298] [2021-08-31 01:32:12,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633517298] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:12,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395146742] [2021-08-31 01:32:12,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:12,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:12,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,726 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-08-31 01:32:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:12,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-31 01:32:12,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-31 01:32:12,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:12,879 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-31 01:32:12,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395146742] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:12,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:12,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2021-08-31 01:32:12,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778128621] [2021-08-31 01:32:12,880 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 01:32:12,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:12,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1575402, now seen corresponding path program 3 times [2021-08-31 01:32:12,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:12,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950841066] [2021-08-31 01:32:12,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:12,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:12,883 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:12,888 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:12,910 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:12,910 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:12,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:12,911 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:12,911 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:12,911 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,911 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:12,911 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:12,911 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2021-08-31 01:32:12,911 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:12,911 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:12,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,954 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:12,954 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:12,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,955 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-08-31 01:32:12,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:12,957 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:12,978 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:12,978 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:12,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,994 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-08-31 01:32:12,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:12,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:13,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:13,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:13,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,032 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:13,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-08-31 01:32:13,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:13,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:13,116 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:13,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:13,119 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:13,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:13,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:13,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:13,120 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:13,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:13,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:13,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:13,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2021-08-31 01:32:13,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:13,120 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:13,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:13,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:13,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:13,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:13,162 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:13,162 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:13,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:13,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,163 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:13,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-08-31 01:32:13,165 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:13,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:13,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:13,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:13,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:13,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:13,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:13,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:13,186 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:13,188 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:13,188 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 01:32:13,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:13,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,189 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:13,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-08-31 01:32:13,191 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:13,191 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:13,191 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:13,191 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-31 01:32:13,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:13,206 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:13,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,280 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-31 01:32:13,281 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 87 states and 106 transitions. cyclomatic complexity: 26 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-08-31 01:32:13,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:13,326 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 87 states and 106 transitions. cyclomatic complexity: 26. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 125 states and 152 transitions. Complement of second has 7 states. [2021-08-31 01:32:13,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:13,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-08-31 01:32:13,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-08-31 01:32:13,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 27 letters. Loop has 4 letters. [2021-08-31 01:32:13,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,327 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-31 01:32:13,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,396 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-31 01:32:13,397 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 87 states and 106 transitions. cyclomatic complexity: 26 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-08-31 01:32:13,437 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 87 states and 106 transitions. cyclomatic complexity: 26. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 148 states and 173 transitions. Complement of second has 7 states. [2021-08-31 01:32:13,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-08-31 01:32:13,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2021-08-31 01:32:13,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 27 letters. Loop has 4 letters. [2021-08-31 01:32:13,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,438 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-31 01:32:13,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,502 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-31 01:32:13,502 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 87 states and 106 transitions. cyclomatic complexity: 26 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-08-31 01:32:13,525 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 87 states and 106 transitions. cyclomatic complexity: 26. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 139 states and 172 transitions. Complement of second has 8 states. [2021-08-31 01:32:13,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:13,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-08-31 01:32:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-08-31 01:32:13,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 27 letters. Loop has 4 letters. [2021-08-31 01:32:13,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 31 letters. Loop has 4 letters. [2021-08-31 01:32:13,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 27 letters. Loop has 8 letters. [2021-08-31 01:32:13,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 139 states and 172 transitions. [2021-08-31 01:32:13,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2021-08-31 01:32:13,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 139 states to 94 states and 114 transitions. [2021-08-31 01:32:13,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-08-31 01:32:13,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-08-31 01:32:13,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 114 transitions. [2021-08-31 01:32:13,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:13,529 INFO L681 BuchiCegarLoop]: Abstraction has 94 states and 114 transitions. [2021-08-31 01:32:13,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 114 transitions. [2021-08-31 01:32:13,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 57. [2021-08-31 01:32:13,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 56 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:13,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2021-08-31 01:32:13,531 INFO L704 BuchiCegarLoop]: Abstraction has 57 states and 69 transitions. [2021-08-31 01:32:13,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:13,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-31 01:32:13,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-31 01:32:13,532 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:13,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:13,575 INFO L93 Difference]: Finished difference Result 156 states and 183 transitions. [2021-08-31 01:32:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-31 01:32:13,575 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 156 states and 183 transitions. [2021-08-31 01:32:13,576 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2021-08-31 01:32:13,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 156 states to 144 states and 171 transitions. [2021-08-31 01:32:13,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-08-31 01:32:13,577 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-08-31 01:32:13,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 171 transitions. [2021-08-31 01:32:13,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:13,578 INFO L681 BuchiCegarLoop]: Abstraction has 144 states and 171 transitions. [2021-08-31 01:32:13,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 171 transitions. [2021-08-31 01:32:13,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 105. [2021-08-31 01:32:13,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.1714285714285715) internal successors, (123), 104 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:13,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2021-08-31 01:32:13,580 INFO L704 BuchiCegarLoop]: Abstraction has 105 states and 123 transitions. [2021-08-31 01:32:13,580 INFO L587 BuchiCegarLoop]: Abstraction has 105 states and 123 transitions. [2021-08-31 01:32:13,580 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-08-31 01:32:13,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 123 transitions. [2021-08-31 01:32:13,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2021-08-31 01:32:13,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:13,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:13,581 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1, 1] [2021-08-31 01:32:13,581 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [12, 11, 11, 10, 2, 1, 1] [2021-08-31 01:32:13,582 INFO L791 eck$LassoCheckResult]: Stem: 2680#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 2676#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2677#L12 assume !(10 == main_~i~0); 2690#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 2706#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2705#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2703#L12 assume !(10 == main_~i~0); 2700#L12-2 assume !(0 == main_~i~0); 2697#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2694#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2688#L12 assume 10 == main_~i~0;main_~up~0 := 0; 2672#L12-2 [2021-08-31 01:32:13,582 INFO L793 eck$LassoCheckResult]: Loop: 2672#L12-2 assume !(0 == main_~i~0); 2673#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2774#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2685#L12 assume !(10 == main_~i~0); 2687#L12-2 assume !(0 == main_~i~0); 2776#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2775#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2773#L12 assume !(10 == main_~i~0); 2772#L12-2 assume !(0 == main_~i~0); 2771#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2770#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2769#L12 assume !(10 == main_~i~0); 2768#L12-2 assume !(0 == main_~i~0); 2767#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2766#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2765#L12 assume !(10 == main_~i~0); 2764#L12-2 assume !(0 == main_~i~0); 2763#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2762#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2761#L12 assume !(10 == main_~i~0); 2760#L12-2 assume !(0 == main_~i~0); 2759#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2758#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2757#L12 assume !(10 == main_~i~0); 2756#L12-2 assume !(0 == main_~i~0); 2755#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2754#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2753#L12 assume !(10 == main_~i~0); 2752#L12-2 assume !(0 == main_~i~0); 2751#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2750#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2749#L12 assume !(10 == main_~i~0); 2748#L12-2 assume !(0 == main_~i~0); 2747#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2746#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2745#L12 assume !(10 == main_~i~0); 2709#L12-2 assume !(0 == main_~i~0); 2712#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 2710#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2708#L12 assume !(10 == main_~i~0); 2707#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 2681#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2682#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2704#L12 assume !(10 == main_~i~0); 2693#L12-2 assume !(0 == main_~i~0); 2698#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 2695#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2692#L12 assume 10 == main_~i~0;main_~up~0 := 0; 2672#L12-2 [2021-08-31 01:32:13,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,582 INFO L82 PathProgramCache]: Analyzing trace with hash -912841737, now seen corresponding path program 1 times [2021-08-31 01:32:13,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:13,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067136657] [2021-08-31 01:32:13,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:13,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067136657] [2021-08-31 01:32:13,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067136657] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:13,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406462384] [2021-08-31 01:32:13,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:13,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,604 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:13,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-08-31 01:32:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:13,667 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406462384] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:13,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:13,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-08-31 01:32:13,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994370897] [2021-08-31 01:32:13,668 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 01:32:13,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,669 INFO L82 PathProgramCache]: Analyzing trace with hash -455515071, now seen corresponding path program 2 times [2021-08-31 01:32:13,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:13,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729022229] [2021-08-31 01:32:13,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,708 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 71 proven. 3 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-08-31 01:32:13,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:13,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729022229] [2021-08-31 01:32:13,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729022229] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:13,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208184464] [2021-08-31 01:32:13,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-31 01:32:13,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:13,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,710 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:13,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-08-31 01:32:13,767 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-31 01:32:13,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-31 01:32:13,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,827 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 71 proven. 3 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-08-31 01:32:13,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:13,893 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 71 proven. 3 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-08-31 01:32:13,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208184464] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:13,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:13,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-08-31 01:32:13,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244189682] [2021-08-31 01:32:13,894 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 01:32:13,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:13,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-31 01:32:13,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-31 01:32:13,894 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. cyclomatic complexity: 22 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:13,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:13,919 INFO L93 Difference]: Finished difference Result 156 states and 175 transitions. [2021-08-31 01:32:13,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-31 01:32:13,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 156 states and 175 transitions. [2021-08-31 01:32:13,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 67 [2021-08-31 01:32:13,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 156 states to 144 states and 163 transitions. [2021-08-31 01:32:13,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-08-31 01:32:13,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-08-31 01:32:13,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 163 transitions. [2021-08-31 01:32:13,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:13,921 INFO L681 BuchiCegarLoop]: Abstraction has 144 states and 163 transitions. [2021-08-31 01:32:13,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 163 transitions. [2021-08-31 01:32:13,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 136. [2021-08-31 01:32:13,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 136 states have (on average 1.1323529411764706) internal successors, (154), 135 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 154 transitions. [2021-08-31 01:32:13,924 INFO L704 BuchiCegarLoop]: Abstraction has 136 states and 154 transitions. [2021-08-31 01:32:13,924 INFO L587 BuchiCegarLoop]: Abstraction has 136 states and 154 transitions. [2021-08-31 01:32:13,924 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-08-31 01:32:13,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 154 transitions. [2021-08-31 01:32:13,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2021-08-31 01:32:13,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:13,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:13,925 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [7, 6, 6, 5, 1, 1, 1] [2021-08-31 01:32:13,925 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [16, 15, 15, 10, 6, 1, 1] [2021-08-31 01:32:13,926 INFO L791 eck$LassoCheckResult]: Stem: 3296#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 3297#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3314#L12 assume !(10 == main_~i~0); 3324#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 3302#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3300#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3301#L12 assume !(10 == main_~i~0); 3294#L12-2 assume !(0 == main_~i~0); 3295#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3303#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3305#L12 assume !(10 == main_~i~0); 3306#L12-2 assume !(0 == main_~i~0); 3409#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3408#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3407#L12 assume !(10 == main_~i~0); 3406#L12-2 assume !(0 == main_~i~0); 3405#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3404#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3403#L12 assume !(10 == main_~i~0); 3402#L12-2 assume !(0 == main_~i~0); 3321#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3401#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3400#L12 assume !(10 == main_~i~0); 3319#L12-2 assume !(0 == main_~i~0); 3320#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3399#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3322#L12 assume 10 == main_~i~0;main_~up~0 := 0; 3292#L12-2 [2021-08-31 01:32:13,926 INFO L793 eck$LassoCheckResult]: Loop: 3292#L12-2 assume !(0 == main_~i~0); 3293#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3398#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3397#L12 assume !(10 == main_~i~0); 3396#L12-2 assume !(0 == main_~i~0); 3395#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3394#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3393#L12 assume !(10 == main_~i~0); 3391#L12-2 assume !(0 == main_~i~0); 3389#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3387#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3385#L12 assume !(10 == main_~i~0); 3383#L12-2 assume !(0 == main_~i~0); 3381#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3379#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3377#L12 assume !(10 == main_~i~0); 3375#L12-2 assume !(0 == main_~i~0); 3373#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3371#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3369#L12 assume !(10 == main_~i~0); 3367#L12-2 assume !(0 == main_~i~0); 3365#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3363#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3361#L12 assume !(10 == main_~i~0); 3359#L12-2 assume !(0 == main_~i~0); 3357#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3355#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3353#L12 assume !(10 == main_~i~0); 3351#L12-2 assume !(0 == main_~i~0); 3349#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3347#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3345#L12 assume !(10 == main_~i~0); 3343#L12-2 assume !(0 == main_~i~0); 3341#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3339#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3337#L12 assume !(10 == main_~i~0); 3330#L12-2 assume !(0 == main_~i~0); 3334#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 3332#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3328#L12 assume !(10 == main_~i~0); 3317#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 3307#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3298#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3299#L12 assume !(10 == main_~i~0); 3304#L12-2 assume !(0 == main_~i~0); 3318#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3427#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3426#L12 assume !(10 == main_~i~0); 3425#L12-2 assume !(0 == main_~i~0); 3424#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3423#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3422#L12 assume !(10 == main_~i~0); 3421#L12-2 assume !(0 == main_~i~0); 3420#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3419#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3418#L12 assume !(10 == main_~i~0); 3417#L12-2 assume !(0 == main_~i~0); 3416#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3414#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3412#L12 assume !(10 == main_~i~0); 3410#L12-2 assume !(0 == main_~i~0); 3411#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 3415#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3413#L12 assume 10 == main_~i~0;main_~up~0 := 0; 3292#L12-2 [2021-08-31 01:32:13,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1500441957, now seen corresponding path program 2 times [2021-08-31 01:32:13,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:13,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190240138] [2021-08-31 01:32:13,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,963 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 17 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:13,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190240138] [2021-08-31 01:32:13,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190240138] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:13,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954089206] [2021-08-31 01:32:13,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-31 01:32:13,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:13,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,965 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:13,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-08-31 01:32:13,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-31 01:32:13,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-31 01:32:13,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:14,028 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 17 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:14,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 17 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:14,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954089206] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:14,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:14,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 11 [2021-08-31 01:32:14,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551988449] [2021-08-31 01:32:14,091 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 01:32:14,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:14,091 INFO L82 PathProgramCache]: Analyzing trace with hash -965902619, now seen corresponding path program 3 times [2021-08-31 01:32:14,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:14,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400428644] [2021-08-31 01:32:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:14,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:14,151 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 235 proven. 55 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-08-31 01:32:14,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:14,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400428644] [2021-08-31 01:32:14,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400428644] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:14,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115824611] [2021-08-31 01:32:14,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-31 01:32:14,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:14,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:14,153 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:14,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-08-31 01:32:14,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-08-31 01:32:14,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-31 01:32:14,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-31 01:32:14,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 235 proven. 55 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-08-31 01:32:14,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:14,391 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 235 proven. 55 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-08-31 01:32:14,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115824611] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:14,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:14,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 11 [2021-08-31 01:32:14,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637192118] [2021-08-31 01:32:14,392 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 01:32:14,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:14,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-31 01:32:14,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-31 01:32:14,392 INFO L87 Difference]: Start difference. First operand 136 states and 154 transitions. cyclomatic complexity: 22 Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:14,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:14,441 INFO L93 Difference]: Finished difference Result 188 states and 207 transitions. [2021-08-31 01:32:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-31 01:32:14,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 207 transitions. [2021-08-31 01:32:14,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 83 [2021-08-31 01:32:14,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 176 states and 195 transitions. [2021-08-31 01:32:14,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-08-31 01:32:14,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2021-08-31 01:32:14,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 176 states and 195 transitions. [2021-08-31 01:32:14,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:14,444 INFO L681 BuchiCegarLoop]: Abstraction has 176 states and 195 transitions. [2021-08-31 01:32:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states and 195 transitions. [2021-08-31 01:32:14,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 168. [2021-08-31 01:32:14,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.1071428571428572) internal successors, (186), 167 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:14,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 186 transitions. [2021-08-31 01:32:14,447 INFO L704 BuchiCegarLoop]: Abstraction has 168 states and 186 transitions. [2021-08-31 01:32:14,447 INFO L587 BuchiCegarLoop]: Abstraction has 168 states and 186 transitions. [2021-08-31 01:32:14,447 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-08-31 01:32:14,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 186 transitions. [2021-08-31 01:32:14,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2021-08-31 01:32:14,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:14,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:14,449 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 10, 10, 9, 1, 1, 1] [2021-08-31 01:32:14,449 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2021-08-31 01:32:14,449 INFO L791 eck$LassoCheckResult]: Stem: 4183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 4184#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4199#L12 assume !(10 == main_~i~0); 4208#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 4185#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4186#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4189#L12 assume !(10 == main_~i~0); 4190#L12-2 assume !(0 == main_~i~0); 4187#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4181#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4182#L12 assume !(10 == main_~i~0); 4177#L12-2 assume !(0 == main_~i~0); 4178#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4308#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4307#L12 assume !(10 == main_~i~0); 4306#L12-2 assume !(0 == main_~i~0); 4305#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4304#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4303#L12 assume !(10 == main_~i~0); 4302#L12-2 assume !(0 == main_~i~0); 4301#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4300#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4299#L12 assume !(10 == main_~i~0); 4298#L12-2 assume !(0 == main_~i~0); 4297#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4296#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4295#L12 assume !(10 == main_~i~0); 4294#L12-2 assume !(0 == main_~i~0); 4293#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4292#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4291#L12 assume !(10 == main_~i~0); 4290#L12-2 assume !(0 == main_~i~0); 4289#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4288#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4287#L12 assume !(10 == main_~i~0); 4286#L12-2 assume !(0 == main_~i~0); 4205#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4285#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4284#L12 assume !(10 == main_~i~0); 4203#L12-2 assume !(0 == main_~i~0); 4204#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4283#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4206#L12 assume 10 == main_~i~0;main_~up~0 := 0; 4175#L12-2 [2021-08-31 01:32:14,449 INFO L793 eck$LassoCheckResult]: Loop: 4175#L12-2 assume !(0 == main_~i~0); 4176#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4282#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4281#L12 assume !(10 == main_~i~0); 4280#L12-2 assume !(0 == main_~i~0); 4279#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4278#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4277#L12 assume !(10 == main_~i~0); 4275#L12-2 assume !(0 == main_~i~0); 4273#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4271#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4269#L12 assume !(10 == main_~i~0); 4267#L12-2 assume !(0 == main_~i~0); 4265#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4263#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4261#L12 assume !(10 == main_~i~0); 4259#L12-2 assume !(0 == main_~i~0); 4257#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4255#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4253#L12 assume !(10 == main_~i~0); 4251#L12-2 assume !(0 == main_~i~0); 4249#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4247#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4245#L12 assume !(10 == main_~i~0); 4243#L12-2 assume !(0 == main_~i~0); 4241#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4239#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4237#L12 assume !(10 == main_~i~0); 4235#L12-2 assume !(0 == main_~i~0); 4233#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4231#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4229#L12 assume !(10 == main_~i~0); 4227#L12-2 assume !(0 == main_~i~0); 4225#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4223#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4221#L12 assume !(10 == main_~i~0); 4214#L12-2 assume !(0 == main_~i~0); 4218#L15-1 assume !(1 == main_~up~0);main_~i~0 := main_~i~0 - 1; 4216#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4212#L12 assume !(10 == main_~i~0); 4201#L12-2 assume 0 == main_~i~0;main_~up~0 := 1; 4191#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4179#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4180#L12 assume !(10 == main_~i~0); 4188#L12-2 assume !(0 == main_~i~0); 4202#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4342#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4341#L12 assume !(10 == main_~i~0); 4340#L12-2 assume !(0 == main_~i~0); 4339#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4338#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4337#L12 assume !(10 == main_~i~0); 4336#L12-2 assume !(0 == main_~i~0); 4335#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4334#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4333#L12 assume !(10 == main_~i~0); 4332#L12-2 assume !(0 == main_~i~0); 4331#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4330#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4329#L12 assume !(10 == main_~i~0); 4328#L12-2 assume !(0 == main_~i~0); 4327#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4326#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4325#L12 assume !(10 == main_~i~0); 4324#L12-2 assume !(0 == main_~i~0); 4323#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4322#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4321#L12 assume !(10 == main_~i~0); 4320#L12-2 assume !(0 == main_~i~0); 4319#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4318#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4317#L12 assume !(10 == main_~i~0); 4316#L12-2 assume !(0 == main_~i~0); 4315#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4313#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4311#L12 assume !(10 == main_~i~0); 4309#L12-2 assume !(0 == main_~i~0); 4310#L15-1 assume 1 == main_~up~0;main_~i~0 := 1 + main_~i~0; 4314#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4312#L12 assume 10 == main_~i~0;main_~up~0 := 0; 4175#L12-2 [2021-08-31 01:32:14,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:14,449 INFO L82 PathProgramCache]: Analyzing trace with hash 180435263, now seen corresponding path program 3 times [2021-08-31 01:32:14,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:14,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706302893] [2021-08-31 01:32:14,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:14,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:14,454 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:14,459 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:14,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:14,459 INFO L82 PathProgramCache]: Analyzing trace with hash -312487543, now seen corresponding path program 4 times [2021-08-31 01:32:14,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:14,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890981296] [2021-08-31 01:32:14,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:14,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:14,467 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:14,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:14,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:14,474 INFO L82 PathProgramCache]: Analyzing trace with hash 799661767, now seen corresponding path program 2 times [2021-08-31 01:32:14,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:14,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191944517] [2021-08-31 01:32:14,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:14,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:14,493 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:14,504 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:15,045 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 01:32:15,047 INFO L158 Benchmark]: Toolchain (without parser) took 7703.96ms. Allocated memory was 46.1MB in the beginning and 86.0MB in the end (delta: 39.8MB). Free memory was 22.6MB in the beginning and 37.5MB in the end (delta: -14.9MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2021-08-31 01:32:15,047 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 46.1MB. Free memory was 28.8MB in the beginning and 28.7MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:32:15,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 130.68ms. Allocated memory is still 56.6MB. Free memory was 42.1MB in the beginning and 33.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-31 01:32:15,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.26ms. Allocated memory is still 56.6MB. Free memory was 33.3MB in the beginning and 41.1MB in the end (delta: -7.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 01:32:15,047 INFO L158 Benchmark]: Boogie Preprocessor took 14.05ms. Allocated memory is still 56.6MB. Free memory was 41.1MB in the beginning and 40.3MB in the end (delta: 871.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:32:15,048 INFO L158 Benchmark]: RCFGBuilder took 185.50ms. Allocated memory is still 56.6MB. Free memory was 40.3MB in the beginning and 32.9MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-31 01:32:15,048 INFO L158 Benchmark]: BuchiAutomizer took 7313.55ms. Allocated memory was 56.6MB in the beginning and 86.0MB in the end (delta: 29.4MB). Free memory was 32.9MB in the beginning and 37.5MB in the end (delta: -4.6MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2021-08-31 01:32:15,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 46.1MB. Free memory was 28.8MB in the beginning and 28.7MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 130.68ms. Allocated memory is still 56.6MB. Free memory was 42.1MB in the beginning and 33.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.26ms. Allocated memory is still 56.6MB. Free memory was 33.3MB in the beginning and 41.1MB in the end (delta: -7.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.05ms. Allocated memory is still 56.6MB. Free memory was 41.1MB in the beginning and 40.3MB in the end (delta: 871.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 185.50ms. Allocated memory is still 56.6MB. Free memory was 40.3MB in the beginning and 32.9MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 7313.55ms. Allocated memory was 56.6MB in the beginning and 86.0MB in the end (delta: 29.4MB). Free memory was 32.9MB in the beginning and 37.5MB in the end (delta: -4.6MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 16 terminating modules (9 trivial, 6 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 17 and consists of 5 locations. One deterministic module has affine ranking function -1 * i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 17 and consists of 5 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 9 modules have a trivial ranking function, the largest among these consists of 12 locations. The remainder module has 168 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 01:32:15,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:15,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2021-08-31 01:32:15,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2021-08-31 01:32:15,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:15,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:16,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:16,289 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...