./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3dbbec33 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-loops.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 9200f4b7c01ae534db411c2832d0714b6eaa58a9d668730c8aeb9497dccadca2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 14:41:29,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:41:29,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:41:29,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:41:29,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:41:29,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:41:29,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:41:29,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:41:29,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:41:29,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:41:29,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:41:29,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:41:29,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:41:29,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:41:29,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:41:29,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:41:29,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:41:29,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:41:29,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:41:29,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:41:29,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:41:29,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:41:29,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:41:29,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:41:29,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:41:29,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:41:29,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:41:29,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:41:29,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:41:29,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:41:29,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:41:29,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:41:29,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:41:29,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:41:29,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:41:29,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:41:29,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:41:29,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:41:29,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:41:29,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:41:29,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:41:29,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 14:41:29,218 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:41:29,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:41:29,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:41:29,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:41:29,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:41:29,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:41:29,221 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:41:29,221 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 14:41:29,221 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 14:41:29,221 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 14:41:29,222 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 14:41:29,222 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 14:41:29,223 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 14:41:29,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:41:29,223 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:41:29,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:41:29,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:41:29,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 14:41:29,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 14:41:29,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 14:41:29,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:41:29,224 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 14:41:29,224 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:41:29,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 14:41:29,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:41:29,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:41:29,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:41:29,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:41:29,226 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 14:41:29,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9200f4b7c01ae534db411c2832d0714b6eaa58a9d668730c8aeb9497dccadca2 [2023-02-14 14:41:29,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:41:29,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:41:29,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:41:29,463 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:41:29,463 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:41:29,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2023-02-14 14:41:30,522 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:41:30,676 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:41:30,676 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2023-02-14 14:41:30,681 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e0eb8cbd/801cb16e53c2452482586f05d5fe64e0/FLAGffb1c720e [2023-02-14 14:41:30,697 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e0eb8cbd/801cb16e53c2452482586f05d5fe64e0 [2023-02-14 14:41:30,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:41:30,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:41:30,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:41:30,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:41:30,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:41:30,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ffbd6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30, skipping insertion in model container [2023-02-14 14:41:30,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:41:30,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:41:30,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:41:30,856 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:41:30,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:41:30,877 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:41:30,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30 WrapperNode [2023-02-14 14:41:30,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:41:30,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:41:30,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:41:30,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:41:30,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,903 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-02-14 14:41:30,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:41:30,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:41:30,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:41:30,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:41:30,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,917 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:41:30,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:41:30,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:41:30,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:41:30,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30" (1/1) ... [2023-02-14 14:41:30,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,975 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) [2023-02-14 14:41:30,978 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 [2023-02-14 14:41:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:41:31,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:41:31,057 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:41:31,059 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:41:31,136 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:41:31,141 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:41:31,141 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-14 14:41:31,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:41:31 BoogieIcfgContainer [2023-02-14 14:41:31,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:41:31,144 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 14:41:31,144 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 14:41:31,147 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 14:41:31,147 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:41:31,147 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 02:41:30" (1/3) ... [2023-02-14 14:41:31,148 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@562bc3d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:41:31, skipping insertion in model container [2023-02-14 14:41:31,148 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:41:31,148 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:30" (2/3) ... [2023-02-14 14:41:31,149 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@562bc3d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:41:31, skipping insertion in model container [2023-02-14 14:41:31,149 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:41:31,149 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:41:31" (3/3) ... [2023-02-14 14:41:31,150 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops.c [2023-02-14 14:41:31,221 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 14:41:31,221 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 14:41:31,222 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 14:41:31,222 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 14:41:31,222 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 14:41:31,222 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 14:41:31,222 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 14:41:31,222 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 14:41:31,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 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) [2023-02-14 14:41:31,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:41:31,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:31,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:31,242 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-14 14:41:31,243 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-14 14:41:31,243 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 14:41:31,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 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) [2023-02-14 14:41:31,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:41:31,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:31,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:31,245 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-14 14:41:31,245 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-14 14:41:31,252 INFO L748 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~n~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~n~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~n~0#1; 4#L18true assume main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823; 2#L19-2true [2023-02-14 14:41:31,252 INFO L750 eck$LassoCheckResult]: Loop: 2#L19-2true assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 7#L21true assume !(main_~y~0#1 < main_~x~0#1); 11#L21-1true main_~x~0#1 := main_~x~0#1 - 1; 2#L19-2true [2023-02-14 14:41:31,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:31,257 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-02-14 14:41:31,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:31,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612806986] [2023-02-14 14:41:31,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:31,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,343 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:31,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:31,346 INFO L85 PathProgramCache]: Analyzing trace with hash 44239, now seen corresponding path program 1 times [2023-02-14 14:41:31,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:31,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774312896] [2023-02-14 14:41:31,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:31,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:31,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:31,379 INFO L85 PathProgramCache]: Analyzing trace with hash 889514126, now seen corresponding path program 1 times [2023-02-14 14:41:31,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:31,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532455021] [2023-02-14 14:41:31,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:31,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:31,507 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:31,508 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:31,508 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:31,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:31,508 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:31,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,509 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:31,509 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:31,509 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration1_Loop [2023-02-14 14:41:31,509 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:31,509 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:31,522 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,546 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,555 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,643 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:31,644 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:31,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,648 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) [2023-02-14 14:41:31,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:31,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:31,671 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 [2023-02-14 14:41:31,677 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:31,677 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: [] [2023-02-14 14:41:31,684 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 [2023-02-14 14:41:31,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,686 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) [2023-02-14 14:41:31,688 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 [2023-02-14 14:41:31,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:31,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:31,711 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:31,711 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: [] [2023-02-14 14:41:31,715 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 [2023-02-14 14:41:31,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,723 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) [2023-02-14 14:41:31,729 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 [2023-02-14 14:41:31,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:31,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:31,785 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 [2023-02-14 14:41:31,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,787 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) [2023-02-14 14:41:31,789 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 [2023-02-14 14:41:31,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:31,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:31,843 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:31,850 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 [2023-02-14 14:41:31,851 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:31,851 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:31,851 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:31,851 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:31,851 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:31,851 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,851 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:31,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:31,852 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration1_Loop [2023-02-14 14:41:31,852 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:31,852 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:31,855 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,859 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,866 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,910 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:31,914 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:31,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,916 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) [2023-02-14 14:41:31,918 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 [2023-02-14 14:41:31,919 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 [2023-02-14 14:41:31,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:31,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,930 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:31,930 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:31,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:31,969 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 [2023-02-14 14:41:31,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,971 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) [2023-02-14 14:41:31,973 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 [2023-02-14 14:41:31,974 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 [2023-02-14 14:41:31,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:31,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,984 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:31,984 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:32,009 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:32,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:32,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,029 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) [2023-02-14 14:41:32,041 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 [2023-02-14 14:41:32,041 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 [2023-02-14 14:41:32,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:32,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:32,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:32,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:32,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:32,053 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:32,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:32,063 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:32,066 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:32,066 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:41:32,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,070 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) [2023-02-14 14:41:32,071 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 [2023-02-14 14:41:32,073 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:32,073 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:32,074 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:32,074 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2023-02-14 14:41:32,083 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 [2023-02-14 14:41:32,086 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:32,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:32,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:32,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:32,162 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:32,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:32,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:32,247 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:41:32,250 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:32,310 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 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). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 45 transitions. Complement of second has 7 states. [2023-02-14 14:41:32,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-14 14:41:32,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:32,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2023-02-14 14:41:32,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 3 letters. Loop has 3 letters. [2023-02-14 14:41:32,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:32,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 3 letters. [2023-02-14 14:41:32,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:32,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 3 letters. Loop has 6 letters. [2023-02-14 14:41:32,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:32,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 45 transitions. [2023-02-14 14:41:32,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:32,330 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 10 states and 14 transitions. [2023-02-14 14:41:32,331 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-14 14:41:32,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-14 14:41:32,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2023-02-14 14:41:32,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:32,332 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-02-14 14:41:32,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2023-02-14 14:41:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-02-14 14:41:32,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2023-02-14 14:41:32,350 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-02-14 14:41:32,350 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-02-14 14:41:32,350 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 14:41:32,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2023-02-14 14:41:32,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:32,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:32,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:32,351 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-14 14:41:32,351 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 14:41:32,352 INFO L748 eck$LassoCheckResult]: Stem: 94#$Ultimate##0 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_~x~0#1, main_~y~0#1, main_~n~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~n~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~n~0#1; 90#L18 assume main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823; 86#L19-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 87#L21 assume main_~y~0#1 < main_~x~0#1; 91#L22-2 [2023-02-14 14:41:32,352 INFO L750 eck$LassoCheckResult]: Loop: 91#L22-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 2 * main_~y~0#1; 91#L22-2 [2023-02-14 14:41:32,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2023-02-14 14:41:32,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:32,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982279011] [2023-02-14 14:41:32,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:32,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:32,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:32,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:32,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:32,371 INFO L85 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2023-02-14 14:41:32,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:32,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456613189] [2023-02-14 14:41:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:32,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:32,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:32,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:32,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:32,393 INFO L85 PathProgramCache]: Analyzing trace with hash 889513685, now seen corresponding path program 1 times [2023-02-14 14:41:32,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:32,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381875773] [2023-02-14 14:41:32,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:32,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:32,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:32,410 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:32,459 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:32,460 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:32,460 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:32,460 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:32,460 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:32,460 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,460 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:32,460 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:32,460 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration2_Lasso [2023-02-14 14:41:32,460 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:32,461 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:32,463 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,466 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,468 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,478 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,481 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,483 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,531 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:32,531 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:32,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,540 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) [2023-02-14 14:41:32,542 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 [2023-02-14 14:41:32,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:32,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,565 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:32,566 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: [] [2023-02-14 14:41:32,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-14 14:41:32,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,575 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:41:32,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-14 14:41:32,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:32,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,586 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:32,586 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:32,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:32,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,591 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) [2023-02-14 14:41:32,593 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 [2023-02-14 14:41:32,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:32,595 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-14 14:41:32,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,629 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) [2023-02-14 14:41:32,631 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 [2023-02-14 14:41:32,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:32,632 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:44,814 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2023-02-14 14:41:44,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:44,832 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:44,832 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:44,832 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:44,832 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:44,832 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:44,832 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:44,832 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:44,832 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:44,832 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration2_Lasso [2023-02-14 14:41:44,832 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:44,832 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:44,833 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:44,841 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:44,843 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:44,844 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:44,847 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:44,856 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:44,902 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:44,902 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:44,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:44,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:44,904 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) [2023-02-14 14:41:44,906 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 [2023-02-14 14:41:44,908 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 [2023-02-14 14:41:44,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:44,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:44,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:44,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:44,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:44,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:44,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:44,935 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 [2023-02-14 14:41:44,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:44,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:44,936 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) [2023-02-14 14:41:44,938 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 [2023-02-14 14:41:44,940 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 [2023-02-14 14:41:44,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:44,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:44,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:44,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:44,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:44,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:44,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:44,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:44,964 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 [2023-02-14 14:41:44,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:44,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:44,966 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) [2023-02-14 14:41:44,968 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 [2023-02-14 14:41:44,969 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 [2023-02-14 14:41:44,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:44,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:44,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:44,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:44,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:44,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:44,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:44,991 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:45,009 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 [2023-02-14 14:41:45,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:45,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:45,011 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:41:45,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-14 14:41:45,014 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 [2023-02-14 14:41:45,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:45,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:45,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:45,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:45,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:45,022 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:45,038 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:45,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:45,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:45,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:45,047 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) [2023-02-14 14:41:45,049 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 [2023-02-14 14:41:45,051 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 [2023-02-14 14:41:45,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:45,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:45,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:45,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:45,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:45,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:45,078 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:45,089 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2023-02-14 14:41:45,089 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-02-14 14:41:45,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:45,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:45,092 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) [2023-02-14 14:41:45,109 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 [2023-02-14 14:41:45,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:45,117 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-02-14 14:41:45,117 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:45,118 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2023-02-14 14:41:45,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:45,138 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-14 14:41:45,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:45,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 14:41:45,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:45,175 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 14:41:45,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:45,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:45,176 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-02-14 14:41:45,176 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:45,198 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 29 transitions. Complement of second has 6 states. [2023-02-14 14:41:45,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 14:41:45,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:45,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-02-14 14:41:45,204 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-14 14:41:45,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:45,204 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 1 letters. [2023-02-14 14:41:45,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:45,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 14:41:45,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:45,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 29 transitions. [2023-02-14 14:41:45,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:45,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 22 transitions. [2023-02-14 14:41:45,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-14 14:41:45,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-14 14:41:45,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2023-02-14 14:41:45,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:45,209 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2023-02-14 14:41:45,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2023-02-14 14:41:45,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2023-02-14 14:41:45,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:45,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2023-02-14 14:41:45,211 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-02-14 14:41:45,211 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-02-14 14:41:45,212 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-14 14:41:45,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2023-02-14 14:41:45,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:45,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:45,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:45,213 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2023-02-14 14:41:45,213 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 14:41:45,214 INFO L748 eck$LassoCheckResult]: Stem: 174#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 175#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~n~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~n~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~n~0#1; 168#L18 assume main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823; 165#L19-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 166#L21 assume main_~y~0#1 < main_~x~0#1; 172#L22-2 assume !(main_~y~0#1 < main_~x~0#1); 173#L21-1 main_~x~0#1 := main_~x~0#1 - 1; 176#L19-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 169#L21 assume main_~y~0#1 < main_~x~0#1; 170#L22-2 [2023-02-14 14:41:45,214 INFO L750 eck$LassoCheckResult]: Loop: 170#L22-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 2 * main_~y~0#1; 170#L22-2 [2023-02-14 14:41:45,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:45,214 INFO L85 PathProgramCache]: Analyzing trace with hash -446053903, now seen corresponding path program 1 times [2023-02-14 14:41:45,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:45,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834578025] [2023-02-14 14:41:45,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:45,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:45,277 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 [2023-02-14 14:41:45,300 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 [2023-02-14 14:41:45,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:45,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:41:45,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834578025] [2023-02-14 14:41:45,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834578025] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:41:45,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:41:45,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:41:45,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974170849] [2023-02-14 14:41:45,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:41:45,309 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-14 14:41:45,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:45,310 INFO L85 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 2 times [2023-02-14 14:41:45,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:45,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621630093] [2023-02-14 14:41:45,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:45,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:45,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:45,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:45,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:41:45,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:41:45,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:41:45,326 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:45,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:41:45,335 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-02-14 14:41:45,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-02-14 14:41:45,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:45,336 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2023-02-14 14:41:45,336 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-14 14:41:45,336 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-14 14:41:45,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2023-02-14 14:41:45,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:45,337 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2023-02-14 14:41:45,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2023-02-14 14:41:45,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-02-14 14:41:45,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 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) [2023-02-14 14:41:45,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2023-02-14 14:41:45,338 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-02-14 14:41:45,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:41:45,338 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-02-14 14:41:45,338 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-14 14:41:45,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2023-02-14 14:41:45,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:45,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:45,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:45,339 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-02-14 14:41:45,339 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 14:41:45,339 INFO L748 eck$LassoCheckResult]: Stem: 208#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 209#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~n~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~n~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~n~0#1; 202#L18 assume main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823; 199#L19-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 200#L21 assume main_~y~0#1 < main_~x~0#1; 206#L22-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 2 * main_~y~0#1; 210#L22-2 assume !(main_~y~0#1 < main_~x~0#1); 207#L21-1 main_~x~0#1 := main_~x~0#1 - 1; 211#L19-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 203#L21 assume main_~y~0#1 < main_~x~0#1; 204#L22-2 [2023-02-14 14:41:45,339 INFO L750 eck$LassoCheckResult]: Loop: 204#L22-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 2 * main_~y~0#1; 204#L22-2 [2023-02-14 14:41:45,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:45,340 INFO L85 PathProgramCache]: Analyzing trace with hash -941171999, now seen corresponding path program 1 times [2023-02-14 14:41:45,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:45,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190048926] [2023-02-14 14:41:45,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:45,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:45,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:45,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:41:45,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190048926] [2023-02-14 14:41:45,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190048926] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:41:45,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873086682] [2023-02-14 14:41:45,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:45,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:41:45,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:45,386 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 14:41:45,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-14 14:41:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:45,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-14 14:41:45,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:45,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:41:45,482 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:45,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873086682] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:41:45,483 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:41:45,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2023-02-14 14:41:45,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927934843] [2023-02-14 14:41:45,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:41:45,483 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-14 14:41:45,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:45,483 INFO L85 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 3 times [2023-02-14 14:41:45,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:45,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710427999] [2023-02-14 14:41:45,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:45,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:45,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:45,487 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:45,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:41:45,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-14 14:41:45,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-02-14 14:41:45,497 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 7 Second operand has 8 states, 7 states have (on average 1.7142857142857142) 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) [2023-02-14 14:41:45,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:41:45,551 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2023-02-14 14:41:45,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2023-02-14 14:41:45,552 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:45,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 15 states and 17 transitions. [2023-02-14 14:41:45,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-14 14:41:45,552 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-14 14:41:45,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2023-02-14 14:41:45,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:45,552 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-02-14 14:41:45,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2023-02-14 14:41:45,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2023-02-14 14:41:45,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:45,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2023-02-14 14:41:45,553 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2023-02-14 14:41:45,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-14 14:41:45,554 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2023-02-14 14:41:45,554 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-14 14:41:45,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2023-02-14 14:41:45,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:41:45,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:45,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:45,555 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-02-14 14:41:45,555 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 14:41:45,555 INFO L748 eck$LassoCheckResult]: Stem: 321#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 322#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~n~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~n~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~x~0#1 := main_~n~0#1; 318#L18 assume main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823; 314#L19-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 315#L21 assume main_~y~0#1 < main_~x~0#1; 320#L22-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 2 * main_~y~0#1; 323#L22-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 2 * main_~y~0#1; 325#L22-2 assume !(main_~y~0#1 < main_~x~0#1); 324#L21-1 main_~x~0#1 := main_~x~0#1 - 1; 316#L19-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 317#L21 assume main_~y~0#1 < main_~x~0#1; 319#L22-2 [2023-02-14 14:41:45,555 INFO L750 eck$LassoCheckResult]: Loop: 319#L22-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 2 * main_~y~0#1; 319#L22-2 [2023-02-14 14:41:45,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:45,555 INFO L85 PathProgramCache]: Analyzing trace with hash 890036209, now seen corresponding path program 2 times [2023-02-14 14:41:45,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:45,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518264120] [2023-02-14 14:41:45,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:45,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:45,560 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:45,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:45,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:45,564 INFO L85 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 4 times [2023-02-14 14:41:45,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:45,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424433305] [2023-02-14 14:41:45,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:45,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:45,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:45,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:45,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:45,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1821318729, now seen corresponding path program 3 times [2023-02-14 14:41:45,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:45,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809713282] [2023-02-14 14:41:45,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:45,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:45,572 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:45,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:45,621 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:45,621 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:45,621 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:45,621 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:45,621 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:45,621 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:45,621 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:45,621 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:45,621 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration5_Lasso [2023-02-14 14:41:45,621 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:45,621 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:45,622 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:45,624 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:45,625 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:45,627 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:45,629 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:45,637 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:45,675 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:45,676 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:45,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:45,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:45,677 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) [2023-02-14 14:41:45,679 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 [2023-02-14 14:41:45,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:45,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:45,709 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:45,709 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:45,712 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 [2023-02-14 14:41:45,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:45,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:45,713 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) [2023-02-14 14:41:45,715 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 [2023-02-14 14:41:45,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:45,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:45,738 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:45,738 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:45,741 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 [2023-02-14 14:41:45,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:45,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:45,743 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) [2023-02-14 14:41:45,745 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 [2023-02-14 14:41:45,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:45,747 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:45,767 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:45,768 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:45,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:45,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:45,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:45,774 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) [2023-02-14 14:41:45,776 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 [2023-02-14 14:41:45,777 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:45,777 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:45,798 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:45,799 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:45,803 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 [2023-02-14 14:41:45,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:45,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:45,805 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) [2023-02-14 14:41:45,807 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 [2023-02-14 14:41:45,808 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:45,808 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:45,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:45,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:45,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:45,835 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) [2023-02-14 14:41:45,837 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 [2023-02-14 14:41:45,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:45,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:45,915 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:45,920 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 [2023-02-14 14:41:45,920 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:45,920 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:45,920 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:45,921 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:45,921 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:45,921 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:45,921 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:45,921 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:45,921 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration5_Lasso [2023-02-14 14:41:45,921 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:45,921 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:45,922 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:45,924 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:45,925 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:45,927 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:45,929 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:45,931 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:45,983 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:45,983 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:45,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:45,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:45,984 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) [2023-02-14 14:41:45,986 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 [2023-02-14 14:41:45,987 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 [2023-02-14 14:41:45,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:45,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:45,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:45,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:45,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:45,993 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:45,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:46,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:46,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:46,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:46,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:46,013 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) [2023-02-14 14:41:46,015 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 [2023-02-14 14:41:46,016 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 [2023-02-14 14:41:46,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:46,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:46,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:46,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:46,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:46,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:46,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:46,038 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:46,042 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 [2023-02-14 14:41:46,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:46,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:46,044 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) [2023-02-14 14:41:46,046 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 [2023-02-14 14:41:46,047 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 [2023-02-14 14:41:46,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:46,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:46,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:46,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:46,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:46,053 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:46,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:46,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:46,074 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 [2023-02-14 14:41:46,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:46,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:46,075 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) [2023-02-14 14:41:46,077 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 [2023-02-14 14:41:46,078 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 [2023-02-14 14:41:46,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:46,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:46,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:46,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:46,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:46,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:46,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:46,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:46,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:46,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:46,107 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) [2023-02-14 14:41:46,109 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 [2023-02-14 14:41:46,110 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 [2023-02-14 14:41:46,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:46,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:46,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:46,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:46,118 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:46,118 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:46,134 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:46,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:46,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:46,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:46,140 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) [2023-02-14 14:41:46,142 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 [2023-02-14 14:41:46,143 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 [2023-02-14 14:41:46,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:46,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:46,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:46,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:46,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:46,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:46,167 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:46,172 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-02-14 14:41:46,172 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-02-14 14:41:46,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:46,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:46,174 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) [2023-02-14 14:41:46,176 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 [2023-02-14 14:41:46,177 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:46,198 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-02-14 14:41:46,198 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:46,198 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2023-02-14 14:41:46,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:46,205 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-14 14:41:46,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:46,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 14:41:46,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:46,246 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 14:41:46,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:46,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:46,246 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-02-14 14:41:46,247 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:46,266 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 24 transitions. Complement of second has 6 states. [2023-02-14 14:41:46,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 14:41:46,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:46,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-02-14 14:41:46,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 11 letters. Loop has 1 letters. [2023-02-14 14:41:46,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:46,267 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:41:46,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:46,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 14:41:46,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:46,305 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 14:41:46,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:46,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:46,305 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2023-02-14 14:41:46,305 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:46,323 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 24 transitions. Complement of second has 6 states. [2023-02-14 14:41:46,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 14:41:46,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-02-14 14:41:46,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 11 letters. Loop has 1 letters. [2023-02-14 14:41:46,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:46,324 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:41:46,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:46,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 14:41:46,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:46,360 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 14:41:46,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:46,361 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-02-14 14:41:46,361 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:46,379 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 17 transitions. Complement of second has 5 states. [2023-02-14 14:41:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 14:41:46,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-02-14 14:41:46,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 11 letters. Loop has 1 letters. [2023-02-14 14:41:46,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:46,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 12 letters. Loop has 1 letters. [2023-02-14 14:41:46,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:46,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2023-02-14 14:41:46,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:46,380 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2023-02-14 14:41:46,381 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:41:46,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2023-02-14 14:41:46,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 14:41:46,381 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 14:41:46,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 14:41:46,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 14:41:46,381 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:41:46,381 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:41:46,381 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:41:46,381 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-14 14:41:46,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-14 14:41:46,381 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:41:46,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-14 14:41:46,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 02:41:46 BoogieIcfgContainer [2023-02-14 14:41:46,386 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 14:41:46,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 14:41:46,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 14:41:46,387 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 14:41:46,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:41:31" (3/4) ... [2023-02-14 14:41:46,389 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 14:41:46,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 14:41:46,389 INFO L158 Benchmark]: Toolchain (without parser) took 15689.06ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 108.3MB in the beginning and 68.5MB in the end (delta: 39.9MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. [2023-02-14 14:41:46,389 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 155.2MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:41:46,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.81ms. Allocated memory is still 155.2MB. Free memory was 108.0MB in the beginning and 99.0MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 14:41:46,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.21ms. Allocated memory is still 155.2MB. Free memory was 99.0MB in the beginning and 97.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:41:46,390 INFO L158 Benchmark]: Boogie Preprocessor took 22.57ms. Allocated memory is still 155.2MB. Free memory was 97.4MB in the beginning and 96.5MB in the end (delta: 920.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:41:46,390 INFO L158 Benchmark]: RCFGBuilder took 214.24ms. Allocated memory is still 155.2MB. Free memory was 96.5MB in the beginning and 88.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 14:41:46,390 INFO L158 Benchmark]: BuchiAutomizer took 15242.68ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 88.1MB in the beginning and 68.5MB in the end (delta: 19.7MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2023-02-14 14:41:46,390 INFO L158 Benchmark]: Witness Printer took 2.11ms. Allocated memory is still 186.6MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:41:46,391 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 155.2MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.81ms. Allocated memory is still 155.2MB. Free memory was 108.0MB in the beginning and 99.0MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.21ms. Allocated memory is still 155.2MB. Free memory was 99.0MB in the beginning and 97.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.57ms. Allocated memory is still 155.2MB. Free memory was 97.4MB in the beginning and 96.5MB in the end (delta: 920.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 214.24ms. Allocated memory is still 155.2MB. Free memory was 96.5MB in the beginning and 88.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 15242.68ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 88.1MB in the beginning and 68.5MB in the end (delta: 19.7MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. * Witness Printer took 2.11ms. Allocated memory is still 186.6MB. Free memory is still 68.5MB. 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -1 * y + x and consists of 4 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.1s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 14.5s. 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 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 42 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf92 smp100 dnf100 smp100 tf102 neg97 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-14 14:41:46,413 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 [2023-02-14 14:41:46,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:46,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE