./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f1c0f52e4e285a18472ace03d4db4ceb89212d4af812bbedd827878c931f4f63 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:13:23,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:13:23,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:13:23,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:13:23,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:13:23,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:13:23,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:13:23,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:13:23,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:13:23,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:13:23,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:13:23,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:13:23,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:13:23,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:13:23,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:13:23,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:13:23,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:13:23,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:13:23,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:13:23,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:13:23,562 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:13:23,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:13:23,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:13:23,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:13:23,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:13:23,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:13:23,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:13:23,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:13:23,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:13:23,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:13:23,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:13:23,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:13:23,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:13:23,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:13:23,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:13:23,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:13:23,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:13:23,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:13:23,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:13:23,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:13:23,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:13:23,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:13:23,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-23 14:13:23,611 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:13:23,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:13:23,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:13:23,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:13:23,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:13:23,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:13:23,614 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:13:23,614 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 14:13:23,614 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 14:13:23,615 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 14:13:23,615 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 14:13:23,615 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 14:13:23,616 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 14:13:23,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:13:23,616 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:13:23,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:13:23,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:13:23,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 14:13:23,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 14:13:23,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 14:13:23,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:13:23,617 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 14:13:23,617 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:13:23,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 14:13:23,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:13:23,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:13:23,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:13:23,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:13:23,619 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 14:13:23,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1c0f52e4e285a18472ace03d4db4ceb89212d4af812bbedd827878c931f4f63 [2022-07-23 14:13:23,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:13:23,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:13:23,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:13:23,847 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:13:23,848 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:13:23,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2022-07-23 14:13:23,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8507779e5/b3857b5732854d67a0b1d17555b024aa/FLAG24fb94a7c [2022-07-23 14:13:24,240 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:13:24,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2022-07-23 14:13:24,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8507779e5/b3857b5732854d67a0b1d17555b024aa/FLAG24fb94a7c [2022-07-23 14:13:24,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8507779e5/b3857b5732854d67a0b1d17555b024aa [2022-07-23 14:13:24,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:13:24,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:13:24,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:13:24,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:13:24,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:13:24,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:13:24" (1/1) ... [2022-07-23 14:13:24,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627cf7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24, skipping insertion in model container [2022-07-23 14:13:24,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:13:24" (1/1) ... [2022-07-23 14:13:24,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:13:24,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:13:24,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:13:24,828 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:13:24,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:13:24,843 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:13:24,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24 WrapperNode [2022-07-23 14:13:24,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:13:24,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:13:24,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:13:24,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:13:24,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24" (1/1) ... [2022-07-23 14:13:24,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24" (1/1) ... [2022-07-23 14:13:24,862 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-07-23 14:13:24,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:13:24,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:13:24,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:13:24,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:13:24,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24" (1/1) ... [2022-07-23 14:13:24,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24" (1/1) ... [2022-07-23 14:13:24,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24" (1/1) ... [2022-07-23 14:13:24,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24" (1/1) ... [2022-07-23 14:13:24,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24" (1/1) ... [2022-07-23 14:13:24,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24" (1/1) ... [2022-07-23 14:13:24,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24" (1/1) ... [2022-07-23 14:13:24,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:13:24,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:13:24,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:13:24,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:13:24,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24" (1/1) ... [2022-07-23 14:13:24,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:24,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:24,901 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) [2022-07-23 14:13:24,951 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 [2022-07-23 14:13:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:13:24,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:13:25,008 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:13:25,010 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:13:25,052 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:13:25,056 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:13:25,056 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 14:13:25,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:13:25 BoogieIcfgContainer [2022-07-23 14:13:25,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:13:25,059 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 14:13:25,059 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 14:13:25,061 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 14:13:25,061 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:13:25,062 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 02:13:24" (1/3) ... [2022-07-23 14:13:25,062 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fb9e710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:13:25, skipping insertion in model container [2022-07-23 14:13:25,062 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:13:25,063 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:13:24" (2/3) ... [2022-07-23 14:13:25,063 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fb9e710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:13:25, skipping insertion in model container [2022-07-23 14:13:25,063 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:13:25,063 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:13:25" (3/3) ... [2022-07-23 14:13:25,064 INFO L354 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2022-07-23 14:13:25,099 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 14:13:25,099 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 14:13:25,099 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 14:13:25,099 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 14:13:25,099 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 14:13:25,099 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 14:13:25,099 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 14:13:25,100 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 14:13:25,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-07-23 14:13:25,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 14:13:25,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:13:25,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:13:25,116 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 14:13:25,117 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-23 14:13:25,117 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 14:13:25,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-07-23 14:13:25,118 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 14:13:25,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:13:25,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:13:25,118 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 14:13:25,118 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-23 14:13:25,122 INFO L752 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L17-2true [2022-07-23 14:13:25,123 INFO L754 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 2#L19-2true assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 9#L19-3true main_~i~0#1 := 1 + main_~i~0#1; 4#L17-2true [2022-07-23 14:13:25,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:25,127 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-23 14:13:25,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:25,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985029706] [2022-07-23 14:13:25,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:25,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:25,186 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:25,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:25,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:25,219 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2022-07-23 14:13:25,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:25,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074533649] [2022-07-23 14:13:25,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:25,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:25,244 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:25,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:25,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:25,257 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2022-07-23 14:13:25,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:25,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781649605] [2022-07-23 14:13:25,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:25,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:25,271 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:25,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:25,365 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:25,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:25,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:25,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:25,366 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:13:25,366 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:25,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:25,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:25,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2022-07-23 14:13:25,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:25,366 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:25,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:25,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:25,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:25,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:25,476 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:25,477 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:13:25,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:25,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:25,479 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) [2022-07-23 14:13:25,480 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 [2022-07-23 14:13:25,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:25,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:25,508 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:13:25,508 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: [] [2022-07-23 14:13:25,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-23 14:13:25,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:25,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:25,532 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) [2022-07-23 14:13:25,533 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 [2022-07-23 14:13:25,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:25,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:25,577 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:13:25,578 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: [] [2022-07-23 14:13:25,594 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 [2022-07-23 14:13:25,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:25,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:25,596 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) [2022-07-23 14:13:25,597 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 [2022-07-23 14:13:25,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:25,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:25,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-23 14:13:25,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:25,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:25,639 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) [2022-07-23 14:13:25,640 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 [2022-07-23 14:13:25,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:13:25,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:25,671 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:13:25,674 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 [2022-07-23 14:13:25,674 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:25,674 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:25,675 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:25,675 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:25,675 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:13:25,675 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:25,675 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:25,675 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:25,675 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2022-07-23 14:13:25,675 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:25,675 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:25,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:25,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:25,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:25,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:25,761 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:25,765 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:13:25,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:25,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:25,779 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) [2022-07-23 14:13:25,788 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 [2022-07-23 14:13:25,840 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 [2022-07-23 14:13:25,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:25,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:25,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:25,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:25,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:13:25,852 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:13:25,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:25,896 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 [2022-07-23 14:13:25,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:25,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:25,898 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) [2022-07-23 14:13:25,899 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 [2022-07-23 14:13:25,906 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 [2022-07-23 14:13:25,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:25,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:25,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:25,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:25,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:13:25,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:13:25,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:25,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-23 14:13:25,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:25,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:25,956 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) [2022-07-23 14:13:25,957 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 [2022-07-23 14:13:25,958 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 [2022-07-23 14:13:25,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:25,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:25,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:25,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:25,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:25,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:13:25,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:25,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:25,993 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 [2022-07-23 14:13:25,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:25,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:25,999 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) [2022-07-23 14:13:26,001 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 [2022-07-23 14:13:26,002 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 [2022-07-23 14:13:26,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:26,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:26,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:26,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:26,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:26,010 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:13:26,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:26,023 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:13:26,026 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:13:26,026 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:13:26,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:26,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:26,031 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) [2022-07-23 14:13:26,032 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 [2022-07-23 14:13:26,078 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:13:26,079 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:13:26,079 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:13:26,079 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 5 Supporting invariants [] [2022-07-23 14:13:26,095 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 [2022-07-23 14:13:26,098 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:13:26,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:26,123 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:26,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:26,132 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 14:13:26,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:26,200 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 [2022-07-23 14:13:26,201 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:26,245 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 49 transitions. Complement of second has 9 states. [2022-07-23 14:13:26,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-23 14:13:26,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:26,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2022-07-23 14:13:26,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 2 letters. Loop has 3 letters. [2022-07-23 14:13:26,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:26,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 5 letters. Loop has 3 letters. [2022-07-23 14:13:26,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:26,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 2 letters. Loop has 6 letters. [2022-07-23 14:13:26,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:26,253 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 49 transitions. [2022-07-23 14:13:26,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-23 14:13:26,257 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 14 states and 19 transitions. [2022-07-23 14:13:26,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-07-23 14:13:26,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-23 14:13:26,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2022-07-23 14:13:26,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:13:26,258 INFO L369 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2022-07-23 14:13:26,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2022-07-23 14:13:26,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-07-23 14:13:26,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2022-07-23 14:13:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2022-07-23 14:13:26,275 INFO L392 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2022-07-23 14:13:26,275 INFO L374 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2022-07-23 14:13:26,275 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 14:13:26,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2022-07-23 14:13:26,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-23 14:13:26,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:13:26,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:13:26,276 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-23 14:13:26,276 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:13:26,276 INFO L752 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 95#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 96#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 87#L19-2 [2022-07-23 14:13:26,277 INFO L754 eck$LassoCheckResult]: Loop: 87#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 88#L19-2 assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 97#L19-3 main_~i~0#1 := 1 + main_~i~0#1; 92#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 87#L19-2 [2022-07-23 14:13:26,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:26,277 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-23 14:13:26,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:26,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155965805] [2022-07-23 14:13:26,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:26,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:26,281 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:26,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:26,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:26,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1537394, now seen corresponding path program 1 times [2022-07-23 14:13:26,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:26,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063217819] [2022-07-23 14:13:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:26,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:26,288 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:26,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:26,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:26,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 1 times [2022-07-23 14:13:26,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:26,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919362920] [2022-07-23 14:13:26,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:26,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:26,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:26,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:13:26,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919362920] [2022-07-23 14:13:26,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919362920] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:13:26,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649383220] [2022-07-23 14:13:26,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:26,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:13:26,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:26,323 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:13:26,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-23 14:13:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:26,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:13:26,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:26,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:26,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:13:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:26,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649383220] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:13:26,374 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:13:26,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-07-23 14:13:26,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558225303] [2022-07-23 14:13:26,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:13:26,412 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:26,413 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:26,413 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:26,413 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:26,413 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:13:26,413 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:26,413 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:26,413 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:26,413 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2022-07-23 14:13:26,413 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:26,413 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:26,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:26,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:26,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:26,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:26,478 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:26,478 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:13:26,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:26,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:26,480 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) [2022-07-23 14:13:26,481 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 [2022-07-23 14:13:26,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:26,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:26,503 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:13:26,504 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: [] [2022-07-23 14:13:26,525 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 [2022-07-23 14:13:26,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:26,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:26,527 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) [2022-07-23 14:13:26,528 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 [2022-07-23 14:13:26,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:26,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:26,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-07-23 14:13:26,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:26,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:26,570 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) [2022-07-23 14:13:26,577 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 [2022-07-23 14:13:26,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:13:26,585 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:26,593 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 [2022-07-23 14:13:26,611 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:13:26,629 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 [2022-07-23 14:13:26,630 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:26,630 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:26,630 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:26,630 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:26,630 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:13:26,630 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:26,630 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:26,630 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:26,630 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2022-07-23 14:13:26,630 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:26,630 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:26,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:26,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:26,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:26,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:26,682 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:26,682 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:13:26,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:26,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:26,684 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) [2022-07-23 14:13:26,685 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 [2022-07-23 14:13:26,686 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 [2022-07-23 14:13:26,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:26,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:26,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:26,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:26,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:26,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:13:26,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:26,709 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:13:26,712 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:13:26,712 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-23 14:13:26,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:26,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:26,716 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) [2022-07-23 14:13:26,717 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 [2022-07-23 14:13:26,718 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:13:26,719 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:13:26,719 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:13:26,719 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-07-23 14:13:26,735 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 [2022-07-23 14:13:26,736 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:13:26,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:26,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:26,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:26,760 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 14:13:26,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:26,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:26,792 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 [2022-07-23 14:13:26,792 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) 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) [2022-07-23 14:13:26,823 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.75) 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) Result 32 states and 42 transitions. Complement of second has 9 states. [2022-07-23 14:13:26,823 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 [2022-07-23 14:13:26,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) 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) [2022-07-23 14:13:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2022-07-23 14:13:26,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-23 14:13:26,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:26,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2022-07-23 14:13:26,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:26,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2022-07-23 14:13:26,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:26,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2022-07-23 14:13:26,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-23 14:13:26,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 36 transitions. [2022-07-23 14:13:26,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-07-23 14:13:26,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-07-23 14:13:26,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 36 transitions. [2022-07-23 14:13:26,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:13:26,829 INFO L369 hiAutomatonCegarLoop]: Abstraction has 26 states and 36 transitions. [2022-07-23 14:13:26,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 36 transitions. [2022-07-23 14:13:26,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2022-07-23 14:13:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.391304347826087) internal successors, (32), 22 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) [2022-07-23 14:13:26,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2022-07-23 14:13:26,831 INFO L392 hiAutomatonCegarLoop]: Abstraction has 23 states and 32 transitions. [2022-07-23 14:13:26,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:13:26,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 14:13:26,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-23 14:13:26,834 INFO L87 Difference]: Start difference. First operand 23 states and 32 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:26,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:13:26,855 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2022-07-23 14:13:26,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 14:13:26,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 31 transitions. [2022-07-23 14:13:26,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-23 14:13:26,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 23 states and 29 transitions. [2022-07-23 14:13:26,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-23 14:13:26,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-07-23 14:13:26,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 29 transitions. [2022-07-23 14:13:26,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:13:26,858 INFO L369 hiAutomatonCegarLoop]: Abstraction has 23 states and 29 transitions. [2022-07-23 14:13:26,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 29 transitions. [2022-07-23 14:13:26,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2022-07-23 14:13:26,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 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) [2022-07-23 14:13:26,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-07-23 14:13:26,860 INFO L392 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-07-23 14:13:26,860 INFO L374 stractBuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-07-23 14:13:26,860 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 14:13:26,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2022-07-23 14:13:26,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-23 14:13:26,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:13:26,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:13:26,861 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-23 14:13:26,861 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 1, 1, 1] [2022-07-23 14:13:26,861 INFO L752 eck$LassoCheckResult]: Stem: 279#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 280#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 281#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 272#L19-2 [2022-07-23 14:13:26,861 INFO L754 eck$LassoCheckResult]: Loop: 272#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 273#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 287#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 286#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 285#L19-2 assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 282#L19-3 main_~i~0#1 := 1 + main_~i~0#1; 276#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 272#L19-2 [2022-07-23 14:13:26,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:26,862 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2022-07-23 14:13:26,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:26,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490211418] [2022-07-23 14:13:26,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:26,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:26,865 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:26,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:26,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:26,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1390285212, now seen corresponding path program 2 times [2022-07-23 14:13:26,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:26,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454778507] [2022-07-23 14:13:26,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:26,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:26,873 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:26,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:26,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:26,878 INFO L85 PathProgramCache]: Analyzing trace with hash 2036023261, now seen corresponding path program 2 times [2022-07-23 14:13:26,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:26,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011630131] [2022-07-23 14:13:26,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:26,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:26,924 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:26,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:13:26,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011630131] [2022-07-23 14:13:26,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011630131] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:13:26,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548651420] [2022-07-23 14:13:26,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 14:13:26,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:13:26,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:26,936 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:13:26,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-23 14:13:26,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 14:13:26,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 14:13:26,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 14:13:26,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:26,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:13:27,063 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:27,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548651420] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:13:27,063 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:13:27,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-07-23 14:13:27,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394259661] [2022-07-23 14:13:27,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:13:27,113 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:27,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:27,113 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:27,113 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:27,113 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:13:27,113 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,113 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:27,113 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:27,113 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2022-07-23 14:13:27,113 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:27,113 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:27,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,162 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:27,162 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:13:27,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,165 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) [2022-07-23 14:13:27,165 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 [2022-07-23 14:13:27,167 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:27,167 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:27,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-07-23 14:13:27,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,205 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) [2022-07-23 14:13:27,205 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 [2022-07-23 14:13:27,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:13:27,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:27,234 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:13:27,240 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 [2022-07-23 14:13:27,240 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:27,240 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:27,240 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:27,240 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:27,240 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:13:27,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,240 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:27,240 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:27,240 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2022-07-23 14:13:27,240 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:27,240 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:27,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,270 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 [2022-07-23 14:13:27,308 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:27,308 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:13:27,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,310 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) [2022-07-23 14:13:27,313 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 [2022-07-23 14:13:27,314 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 [2022-07-23 14:13:27,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:27,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:27,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:27,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:27,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:27,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:13:27,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:27,336 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:13:27,338 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:13:27,338 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:13:27,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,339 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) [2022-07-23 14:13:27,342 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 [2022-07-23 14:13:27,342 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:13:27,342 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:13:27,342 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:13:27,342 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 7 Supporting invariants [] [2022-07-23 14:13:27,362 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 [2022-07-23 14:13:27,363 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:13:27,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:27,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:27,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:27,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:13:27,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-23 14:13:27,416 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 [2022-07-23 14:13:27,416 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 2.0) 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) [2022-07-23 14:13:27,431 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 2.0) 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) Result 34 states and 42 transitions. Complement of second has 6 states. [2022-07-23 14:13:27,431 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 [2022-07-23 14:13:27,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) 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) [2022-07-23 14:13:27,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-07-23 14:13:27,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 7 letters. [2022-07-23 14:13:27,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:27,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 10 letters. Loop has 7 letters. [2022-07-23 14:13:27,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:27,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 14 letters. [2022-07-23 14:13:27,433 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:27,433 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2022-07-23 14:13:27,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-23 14:13:27,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 31 transitions. [2022-07-23 14:13:27,434 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-07-23 14:13:27,434 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-23 14:13:27,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2022-07-23 14:13:27,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:13:27,435 INFO L369 hiAutomatonCegarLoop]: Abstraction has 24 states and 31 transitions. [2022-07-23 14:13:27,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2022-07-23 14:13:27,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2022-07-23 14:13:27,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 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) [2022-07-23 14:13:27,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2022-07-23 14:13:27,436 INFO L392 hiAutomatonCegarLoop]: Abstraction has 21 states and 28 transitions. [2022-07-23 14:13:27,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:13:27,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 14:13:27,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2022-07-23 14:13:27,437 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. Second operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:27,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:13:27,476 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2022-07-23 14:13:27,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 14:13:27,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 49 transitions. [2022-07-23 14:13:27,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-23 14:13:27,478 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 49 transitions. [2022-07-23 14:13:27,478 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-07-23 14:13:27,478 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-07-23 14:13:27,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 49 transitions. [2022-07-23 14:13:27,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:13:27,478 INFO L369 hiAutomatonCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-07-23 14:13:27,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 49 transitions. [2022-07-23 14:13:27,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2022-07-23 14:13:27,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 32 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) [2022-07-23 14:13:27,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2022-07-23 14:13:27,480 INFO L392 hiAutomatonCegarLoop]: Abstraction has 33 states and 40 transitions. [2022-07-23 14:13:27,480 INFO L374 stractBuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2022-07-23 14:13:27,480 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-23 14:13:27,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2022-07-23 14:13:27,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-23 14:13:27,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:13:27,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:13:27,481 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-23 14:13:27,481 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-23 14:13:27,481 INFO L752 eck$LassoCheckResult]: Stem: 514#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 515#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 510#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 511#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 507#L19-2 [2022-07-23 14:13:27,481 INFO L754 eck$LassoCheckResult]: Loop: 507#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 507#L19-2 [2022-07-23 14:13:27,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:27,481 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2022-07-23 14:13:27,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:27,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008140821] [2022-07-23 14:13:27,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:27,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:27,485 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:27,487 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:27,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:27,487 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2022-07-23 14:13:27,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:27,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067581929] [2022-07-23 14:13:27,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:27,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:27,490 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:27,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:27,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:27,492 INFO L85 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2022-07-23 14:13:27,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:27,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242731368] [2022-07-23 14:13:27,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:27,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:27,506 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:27,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:27,523 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:27,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:27,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:27,524 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:27,524 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:13:27,524 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,524 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:27,524 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:27,524 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2022-07-23 14:13:27,524 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:27,524 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:27,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,553 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:27,553 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:13:27,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,555 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) [2022-07-23 14:13:27,556 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 [2022-07-23 14:13:27,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:27,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:27,578 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:13:27,578 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:13:27,596 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 [2022-07-23 14:13:27,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,598 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) [2022-07-23 14:13:27,598 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 [2022-07-23 14:13:27,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:27,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:27,611 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:13:27,611 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:13:27,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-07-23 14:13:27,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,628 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) [2022-07-23 14:13:27,629 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 [2022-07-23 14:13:27,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:27,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:27,653 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 [2022-07-23 14:13:27,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,654 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) [2022-07-23 14:13:27,654 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 [2022-07-23 14:13:27,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:13:27,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:27,683 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:13:27,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-07-23 14:13:27,686 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:27,686 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:27,686 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:27,686 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:27,686 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:13:27,686 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,686 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:27,686 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:27,686 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2022-07-23 14:13:27,687 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:27,687 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:27,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,717 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:27,718 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:13:27,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,719 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) [2022-07-23 14:13:27,720 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 [2022-07-23 14:13:27,721 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 [2022-07-23 14:13:27,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:27,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:27,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:27,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:27,728 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:13:27,729 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:13:27,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:27,762 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 [2022-07-23 14:13:27,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,763 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) [2022-07-23 14:13:27,764 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 [2022-07-23 14:13:27,765 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 [2022-07-23 14:13:27,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:27,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:27,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:27,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:27,773 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:13:27,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:13:27,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:13:27,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-07-23 14:13:27,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,796 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) [2022-07-23 14:13:27,796 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 [2022-07-23 14:13:27,800 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 [2022-07-23 14:13:27,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:27,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:27,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:27,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:27,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:27,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:13:27,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:27,808 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:13:27,811 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:13:27,811 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:13:27,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,813 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) [2022-07-23 14:13:27,820 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 [2022-07-23 14:13:27,822 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:13:27,822 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:13:27,822 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:13:27,823 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 19 Supporting invariants [] [2022-07-23 14:13:27,840 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 [2022-07-23 14:13:27,841 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:13:27,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:27,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:27,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:27,861 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:13:27,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:27,862 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-23 14:13:27,862 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 10 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:27,870 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 10. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 67 states and 79 transitions. Complement of second has 5 states. [2022-07-23 14:13:27,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 14:13:27,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:13:27,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-07-23 14:13:27,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 1 letters. [2022-07-23 14:13:27,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:27,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2022-07-23 14:13:27,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:27,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-23 14:13:27,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:27,871 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 79 transitions. [2022-07-23 14:13:27,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-23 14:13:27,875 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 61 states and 72 transitions. [2022-07-23 14:13:27,875 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-07-23 14:13:27,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-23 14:13:27,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 72 transitions. [2022-07-23 14:13:27,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:13:27,875 INFO L369 hiAutomatonCegarLoop]: Abstraction has 61 states and 72 transitions. [2022-07-23 14:13:27,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 72 transitions. [2022-07-23 14:13:27,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 37. [2022-07-23 14:13:27,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 36 states have internal predecessors, (46), 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) [2022-07-23 14:13:27,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2022-07-23 14:13:27,877 INFO L392 hiAutomatonCegarLoop]: Abstraction has 37 states and 46 transitions. [2022-07-23 14:13:27,877 INFO L374 stractBuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2022-07-23 14:13:27,878 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-23 14:13:27,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 46 transitions. [2022-07-23 14:13:27,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-23 14:13:27,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:13:27,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:13:27,878 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [11, 2, 1, 1, 1, 1] [2022-07-23 14:13:27,879 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-23 14:13:27,879 INFO L752 eck$LassoCheckResult]: Stem: 649#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 650#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 645#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 642#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 643#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 644#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 677#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 675#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 673#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 671#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 669#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 667#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 665#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 663#L19-2 assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 651#L19-3 main_~i~0#1 := 1 + main_~i~0#1; 652#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 653#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 654#L19-2 [2022-07-23 14:13:27,879 INFO L754 eck$LassoCheckResult]: Loop: 654#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 654#L19-2 [2022-07-23 14:13:27,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:27,879 INFO L85 PathProgramCache]: Analyzing trace with hash -178305705, now seen corresponding path program 3 times [2022-07-23 14:13:27,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:27,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542076888] [2022-07-23 14:13:27,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:27,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:27,887 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:27,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:27,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:27,895 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2022-07-23 14:13:27,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:27,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039877875] [2022-07-23 14:13:27,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:27,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:27,897 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:27,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:27,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:27,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1232509539, now seen corresponding path program 4 times [2022-07-23 14:13:27,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:13:27,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707960530] [2022-07-23 14:13:27,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:13:27,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:13:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:27,906 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:13:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:13:27,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:13:27,923 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:27,923 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:27,923 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:27,923 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:27,923 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:13:27,923 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,923 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:27,923 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:27,923 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration5_Loop [2022-07-23 14:13:27,923 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:27,923 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:27,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:27,948 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:27,948 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:13:27,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,950 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) [2022-07-23 14:13:27,951 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 [2022-07-23 14:13:27,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:13:27,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:27,989 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 [2022-07-23 14:13:27,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:27,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:27,990 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) [2022-07-23 14:13:27,991 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 [2022-07-23 14:13:27,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:13:27,993 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:13:28,019 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:13:28,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-07-23 14:13:28,022 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:13:28,022 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:13:28,022 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:13:28,022 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:13:28,022 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:13:28,023 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:28,023 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:13:28,023 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:13:28,023 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration5_Loop [2022-07-23 14:13:28,023 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:13:28,023 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:13:28,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:28,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:28,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:28,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:13:28,066 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:13:28,066 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:13:28,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:28,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:28,080 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) [2022-07-23 14:13:28,092 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 [2022-07-23 14:13:28,109 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 [2022-07-23 14:13:28,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:13:28,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:13:28,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:13:28,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:13:28,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:13:28,116 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 [2022-07-23 14:13:28,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:13:28,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:13:28,127 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 [2022-07-23 14:13:28,130 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:13:28,132 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:13:28,132 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:13:28,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:13:28,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:13:28,133 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) [2022-07-23 14:13:28,134 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 [2022-07-23 14:13:28,135 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:13:28,135 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:13:28,135 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:13:28,135 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 19 Supporting invariants [] [2022-07-23 14:13:28,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-07-23 14:13:28,152 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:13:28,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:28,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:28,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:28,198 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:13:28,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:28,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:28,198 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-23 14:13:28,199 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-07-23 14:13:28,206 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 65 states and 76 transitions. Complement of second has 5 states. [2022-07-23 14:13:28,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 14:13:28,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-07-23 14:13:28,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-07-23 14:13:28,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 17 letters. Loop has 1 letters. [2022-07-23 14:13:28,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:28,208 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:13:28,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:28,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:28,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:28,236 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:13:28,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:28,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:28,236 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-23 14:13:28,237 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-07-23 14:13:28,243 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 65 states and 76 transitions. Complement of second has 5 states. [2022-07-23 14:13:28,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 14:13:28,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-07-23 14:13:28,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-07-23 14:13:28,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 17 letters. Loop has 1 letters. [2022-07-23 14:13:28,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:28,245 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:13:28,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:13:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:28,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:13:28,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:13:28,278 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:13:28,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:13:28,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:13:28,279 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-23 14:13:28,279 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-07-23 14:13:28,287 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 42 states and 51 transitions. Complement of second has 4 states. [2022-07-23 14:13:28,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 14:13:28,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-07-23 14:13:28,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-07-23 14:13:28,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 17 letters. Loop has 1 letters. [2022-07-23 14:13:28,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:28,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 18 letters. Loop has 1 letters. [2022-07-23 14:13:28,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:28,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 17 letters. Loop has 2 letters. [2022-07-23 14:13:28,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:13:28,289 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 51 transitions. [2022-07-23 14:13:28,290 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 14:13:28,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 0 states and 0 transitions. [2022-07-23 14:13:28,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-23 14:13:28,290 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-23 14:13:28,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-23 14:13:28,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:13:28,290 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:13:28,290 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:13:28,290 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:13:28,290 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-23 14:13:28,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-23 14:13:28,290 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 14:13:28,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-23 14:13:28,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 02:13:28 BoogieIcfgContainer [2022-07-23 14:13:28,295 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 14:13:28,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 14:13:28,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 14:13:28,295 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 14:13:28,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:13:25" (3/4) ... [2022-07-23 14:13:28,297 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-23 14:13:28,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 14:13:28,297 INFO L158 Benchmark]: Toolchain (without parser) took 3615.32ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 55.9MB in the beginning and 67.1MB in the end (delta: -11.2MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-07-23 14:13:28,298 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:13:28,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 149.61ms. Allocated memory is still 90.2MB. Free memory was 55.6MB in the beginning and 67.8MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 14:13:28,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.66ms. Allocated memory is still 90.2MB. Free memory was 67.8MB in the beginning and 66.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:13:28,298 INFO L158 Benchmark]: Boogie Preprocessor took 10.21ms. Allocated memory is still 90.2MB. Free memory was 66.6MB in the beginning and 65.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:13:28,298 INFO L158 Benchmark]: RCFGBuilder took 184.48ms. Allocated memory is still 90.2MB. Free memory was 65.4MB in the beginning and 57.8MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-23 14:13:28,298 INFO L158 Benchmark]: BuchiAutomizer took 3236.14ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 57.7MB in the beginning and 68.0MB in the end (delta: -10.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2022-07-23 14:13:28,299 INFO L158 Benchmark]: Witness Printer took 2.08ms. Allocated memory is still 111.1MB. Free memory was 68.0MB in the beginning and 67.1MB in the end (delta: 939.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:13:28,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 149.61ms. Allocated memory is still 90.2MB. Free memory was 55.6MB in the beginning and 67.8MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.66ms. Allocated memory is still 90.2MB. Free memory was 67.8MB in the beginning and 66.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.21ms. Allocated memory is still 90.2MB. Free memory was 66.6MB in the beginning and 65.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 184.48ms. Allocated memory is still 90.2MB. Free memory was 65.4MB in the beginning and 57.8MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3236.14ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 57.7MB in the beginning and 68.0MB in the end (delta: -10.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Witness Printer took 2.08ms. Allocated memory is still 111.1MB. Free memory was 68.0MB in the beginning and 67.1MB in the end (delta: 939.9kB). There was no memory consumed. 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 7 terminating modules (2 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 5 and consists of 6 locations. One deterministic module has affine ranking function j and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 7 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 6 iterations. TraceHistogramMax:11. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 44 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 10/11 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 55 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax174 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp93 dnf100 smp100 tf113 neg96 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 113ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-23 14:13:28,320 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 [2022-07-23 14:13:28,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-07-23 14:13:28,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-07-23 14:13:28,937 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE