./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e1ff0e6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f1c0f52e4e285a18472ace03d4db4ceb89212d4af812bbedd827878c931f4f63 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 02:22:50,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 02:22:50,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 02:22:50,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 02:22:50,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 02:22:50,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 02:22:50,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 02:22:50,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 02:22:50,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 02:22:50,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 02:22:50,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 02:22:50,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 02:22:50,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 02:22:50,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 02:22:50,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 02:22:50,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 02:22:50,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 02:22:50,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 02:22:50,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 02:22:50,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 02:22:50,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 02:22:50,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 02:22:50,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 02:22:50,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 02:22:50,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 02:22:50,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 02:22:50,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 02:22:50,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 02:22:50,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 02:22:50,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 02:22:50,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 02:22:50,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 02:22:50,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 02:22:50,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 02:22:50,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 02:22:50,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 02:22:50,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 02:22:50,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 02:22:50,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 02:22:50,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 02:22:50,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 02:22:50,195 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 02:22:50,218 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 02:22:50,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 02:22:50,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 02:22:50,223 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 02:22:50,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 02:22:50,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 02:22:50,225 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 02:22:50,225 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 02:22:50,225 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 02:22:50,225 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 02:22:50,226 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 02:22:50,226 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 02:22:50,226 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 02:22:50,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 02:22:50,226 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 02:22:50,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 02:22:50,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 02:22:50,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 02:22:50,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 02:22:50,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 02:22:50,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 02:22:50,227 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 02:22:50,228 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 02:22:50,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 02:22:50,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 02:22:50,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 02:22:50,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 02:22:50,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 02:22:50,230 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 02:22:50,230 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1c0f52e4e285a18472ace03d4db4ceb89212d4af812bbedd827878c931f4f63 [2023-02-15 02:22:50,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 02:22:50,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 02:22:50,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 02:22:50,446 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 02:22:50,446 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 02:22:50,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2023-02-15 02:22:51,388 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 02:22:51,523 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 02:22:51,525 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2023-02-15 02:22:51,529 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e960de101/9ad2adcf7572478db2be64ced75c0cfe/FLAG411c628b8 [2023-02-15 02:22:51,538 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e960de101/9ad2adcf7572478db2be64ced75c0cfe [2023-02-15 02:22:51,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 02:22:51,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 02:22:51,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 02:22:51,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 02:22:51,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 02:22:51,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66192fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51, skipping insertion in model container [2023-02-15 02:22:51,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 02:22:51,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 02:22:51,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:22:51,651 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 02:22:51,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:22:51,670 INFO L208 MainTranslator]: Completed translation [2023-02-15 02:22:51,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51 WrapperNode [2023-02-15 02:22:51,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 02:22:51,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 02:22:51,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 02:22:51,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 02:22:51,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,693 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-15 02:22:51,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 02:22:51,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 02:22:51,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 02:22:51,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 02:22:51,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,706 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 02:22:51,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 02:22:51,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 02:22:51,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 02:22:51,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51" (1/1) ... [2023-02-15 02:22:51,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:51,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:51,731 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) [2023-02-15 02:22:51,749 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 [2023-02-15 02:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 02:22:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 02:22:51,811 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 02:22:51,814 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 02:22:51,882 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 02:22:51,887 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 02:22:51,888 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 02:22:51,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:22:51 BoogieIcfgContainer [2023-02-15 02:22:51,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 02:22:51,890 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 02:22:51,890 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 02:22:51,893 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 02:22:51,893 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 02:22:51,894 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 02:22:51" (1/3) ... [2023-02-15 02:22:51,894 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@299ae10e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:22:51, skipping insertion in model container [2023-02-15 02:22:51,894 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 02:22:51,894 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:22:51" (2/3) ... [2023-02-15 02:22:51,895 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@299ae10e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:22:51, skipping insertion in model container [2023-02-15 02:22:51,895 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 02:22:51,895 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:22:51" (3/3) ... [2023-02-15 02:22:51,896 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2023-02-15 02:22:51,947 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 02:22:51,947 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 02:22:51,948 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 02:22:51,948 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 02:22:51,948 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 02:22:51,948 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 02:22:51,948 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 02:22:51,948 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 02:22:51,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:51,965 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-15 02:22:51,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:51,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:51,968 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 02:22:51,969 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-15 02:22:51,969 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 02:22:51,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:51,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-15 02:22:51,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:51,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:51,971 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 02:22:51,971 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-15 02:22:51,977 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L17-2true [2023-02-15 02:22:51,977 INFO L750 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 2#L19-2true assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 9#L19-3true main_~i~0#1 := 1 + main_~i~0#1; 4#L17-2true [2023-02-15 02:22:51,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:51,981 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-15 02:22:51,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:51,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733699587] [2023-02-15 02:22:51,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:51,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:52,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:52,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:52,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:52,089 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2023-02-15 02:22:52,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:52,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046232107] [2023-02-15 02:22:52,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:52,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:52,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:52,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:52,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:52,119 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2023-02-15 02:22:52,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:52,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298466997] [2023-02-15 02:22:52,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:52,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:52,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:52,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:52,214 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:52,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:52,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:52,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:52,215 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 02:22:52,215 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:52,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:52,215 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:52,215 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2023-02-15 02:22:52,215 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:52,216 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:52,236 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:52,260 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:52,263 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:52,268 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:52,345 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:52,346 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 02:22:52,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:52,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:52,351 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) [2023-02-15 02:22:52,352 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 [2023-02-15 02:22:52,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:52,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:52,380 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:52,381 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: [] [2023-02-15 02:22:52,386 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 [2023-02-15 02:22:52,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:52,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:52,389 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) [2023-02-15 02:22:52,392 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 [2023-02-15 02:22:52,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:52,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:52,423 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:52,423 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: [] [2023-02-15 02:22:52,429 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 [2023-02-15 02:22:52,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:52,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:52,431 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) [2023-02-15 02:22:52,434 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 [2023-02-15 02:22:52,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:52,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:52,465 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 [2023-02-15 02:22:52,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:52,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:52,467 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) [2023-02-15 02:22:52,469 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 [2023-02-15 02:22:52,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 02:22:52,471 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:52,498 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 02:22:52,503 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 [2023-02-15 02:22:52,504 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:52,504 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:52,504 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:52,504 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:52,504 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 02:22:52,505 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:52,505 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:52,505 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:52,505 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2023-02-15 02:22:52,506 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:52,506 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:52,507 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:52,513 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:52,517 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:52,521 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:52,571 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:52,574 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 02:22:52,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:52,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:52,576 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) [2023-02-15 02:22:52,580 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 [2023-02-15 02:22:52,583 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 [2023-02-15 02:22:52,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:52,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:52,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:52,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:52,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:52,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:52,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:52,618 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 [2023-02-15 02:22:52,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:52,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:52,622 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) [2023-02-15 02:22:52,625 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 [2023-02-15 02:22:52,625 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 [2023-02-15 02:22:52,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:52,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:52,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:52,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:52,635 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:52,636 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:52,649 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:52,657 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 [2023-02-15 02:22:52,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:52,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:52,659 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) [2023-02-15 02:22:52,661 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 [2023-02-15 02:22:52,663 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 [2023-02-15 02:22:52,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:52,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:52,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:52,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:52,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:52,671 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 02:22:52,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:52,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:52,699 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 [2023-02-15 02:22:52,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:52,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:52,701 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) [2023-02-15 02:22:52,703 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 [2023-02-15 02:22:52,704 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 [2023-02-15 02:22:52,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:52,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:52,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:52,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:52,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:52,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 02:22:52,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:52,729 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 02:22:52,731 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 02:22:52,731 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-15 02:22:52,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:52,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:52,741 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) [2023-02-15 02:22:52,742 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 [2023-02-15 02:22:52,743 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 02:22:52,744 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 02:22:52,744 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 02:22:52,744 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 5 Supporting invariants [] [2023-02-15 02:22:52,749 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 [2023-02-15 02:22:52,751 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 02:22:52,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:52,775 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:52,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:52,784 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 02:22:52,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:52,843 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-15 02:22:52,845 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:52,887 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 49 transitions. Complement of second has 9 states. [2023-02-15 02:22:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-02-15 02:22:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:52,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2023-02-15 02:22:52,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-15 02:22:52,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:52,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-15 02:22:52,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:52,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-15 02:22:52,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:52,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 49 transitions. [2023-02-15 02:22:52,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 02:22:52,898 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 14 states and 19 transitions. [2023-02-15 02:22:52,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-15 02:22:52,899 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-15 02:22:52,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2023-02-15 02:22:52,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 02:22:52,900 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-02-15 02:22:52,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2023-02-15 02:22:52,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-02-15 02:22:52,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:52,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-02-15 02:22:52,916 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-02-15 02:22:52,916 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-02-15 02:22:52,916 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 02:22:52,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2023-02-15 02:22:52,917 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 02:22:52,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:52,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:52,917 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 02:22:52,917 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-15 02:22:52,917 INFO L748 eck$LassoCheckResult]: Stem: 93#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 94#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 95#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 86#L19-2 [2023-02-15 02:22:52,917 INFO L750 eck$LassoCheckResult]: Loop: 86#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 87#L19-2 assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 96#L19-3 main_~i~0#1 := 1 + main_~i~0#1; 91#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 86#L19-2 [2023-02-15 02:22:52,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:52,918 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-15 02:22:52,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:52,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953191941] [2023-02-15 02:22:52,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:52,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:52,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:52,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:52,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:52,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1537394, now seen corresponding path program 1 times [2023-02-15 02:22:52,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:52,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389127999] [2023-02-15 02:22:52,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:52,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:52,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:52,931 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:52,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:52,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 1 times [2023-02-15 02:22:52,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:52,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756803788] [2023-02-15 02:22:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:52,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:53,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:53,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:53,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:22:53,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756803788] [2023-02-15 02:22:53,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756803788] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:22:53,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849989632] [2023-02-15 02:22:53,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:53,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:22:53,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:53,009 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:22:53,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 02:22:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:53,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 02:22:53,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:53,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:53,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:22:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:53,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849989632] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:22:53,098 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:22:53,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-02-15 02:22:53,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539244100] [2023-02-15 02:22:53,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:22:53,143 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:53,143 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:53,143 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:53,144 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:53,144 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 02:22:53,144 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:53,144 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:53,144 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:53,144 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2023-02-15 02:22:53,144 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:53,144 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:53,145 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,148 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,155 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,193 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:53,193 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 02:22:53,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:53,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:53,195 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) [2023-02-15 02:22:53,196 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 [2023-02-15 02:22:53,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:53,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:53,217 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:53,218 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: [] [2023-02-15 02:22:53,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:53,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:53,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:53,222 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) [2023-02-15 02:22:53,223 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 [2023-02-15 02:22:53,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:53,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:53,246 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 [2023-02-15 02:22:53,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:53,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:53,247 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) [2023-02-15 02:22:53,248 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 [2023-02-15 02:22:53,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 02:22:53,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:53,277 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 02:22:53,291 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 [2023-02-15 02:22:53,291 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:53,292 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:53,292 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:53,292 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:53,292 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 02:22:53,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:53,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:53,292 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:53,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2023-02-15 02:22:53,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:53,292 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:53,293 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,299 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,301 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,304 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,348 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:53,348 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 02:22:53,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:53,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:53,354 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) [2023-02-15 02:22:53,355 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 [2023-02-15 02:22:53,356 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 [2023-02-15 02:22:53,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:53,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:53,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:53,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:53,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:53,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 02:22:53,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:53,373 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 02:22:53,375 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 02:22:53,375 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 02:22:53,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:53,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:53,378 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) [2023-02-15 02:22:53,378 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 [2023-02-15 02:22:53,379 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 02:22:53,379 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 02:22:53,379 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 02:22:53,380 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-02-15 02:22:53,384 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 [2023-02-15 02:22:53,385 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 02:22:53,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:53,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:53,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:53,413 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 02:22:53,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:53,437 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-15 02:22:53,437 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:53,463 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 42 transitions. Complement of second has 9 states. [2023-02-15 02:22:53,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-02-15 02:22:53,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:53,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2023-02-15 02:22:53,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-15 02:22:53,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:53,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-02-15 02:22:53,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:53,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2023-02-15 02:22:53,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:53,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2023-02-15 02:22:53,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 02:22:53,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 36 transitions. [2023-02-15 02:22:53,468 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-15 02:22:53,468 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-15 02:22:53,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 36 transitions. [2023-02-15 02:22:53,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 02:22:53,468 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 36 transitions. [2023-02-15 02:22:53,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 36 transitions. [2023-02-15 02:22:53,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2023-02-15 02:22:53,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.391304347826087) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:53,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2023-02-15 02:22:53,470 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 32 transitions. [2023-02-15 02:22:53,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:22:53,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 02:22:53,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-15 02:22:53,473 INFO L87 Difference]: Start difference. First operand 23 states and 32 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:53,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:22:53,532 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2023-02-15 02:22:53,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 31 transitions. [2023-02-15 02:22:53,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-15 02:22:53,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 23 states and 29 transitions. [2023-02-15 02:22:53,536 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-15 02:22:53,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-02-15 02:22:53,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 29 transitions. [2023-02-15 02:22:53,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 02:22:53,536 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 29 transitions. [2023-02-15 02:22:53,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 29 transitions. [2023-02-15 02:22:53,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2023-02-15 02:22:53,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:53,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2023-02-15 02:22:53,540 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2023-02-15 02:22:53,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 02:22:53,541 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2023-02-15 02:22:53,541 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-15 02:22:53,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2023-02-15 02:22:53,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-15 02:22:53,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:53,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:53,542 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 02:22:53,542 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 1, 1, 1] [2023-02-15 02:22:53,542 INFO L748 eck$LassoCheckResult]: Stem: 277#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 278#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 279#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 270#L19-2 [2023-02-15 02:22:53,542 INFO L750 eck$LassoCheckResult]: Loop: 270#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 271#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 285#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 284#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 283#L19-2 assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 280#L19-3 main_~i~0#1 := 1 + main_~i~0#1; 274#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 270#L19-2 [2023-02-15 02:22:53,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:53,543 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2023-02-15 02:22:53,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:53,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498083669] [2023-02-15 02:22:53,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:53,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:53,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:53,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:53,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:53,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1390285212, now seen corresponding path program 2 times [2023-02-15 02:22:53,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:53,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133080903] [2023-02-15 02:22:53,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:53,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:53,555 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:53,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:53,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:53,560 INFO L85 PathProgramCache]: Analyzing trace with hash 2036023261, now seen corresponding path program 2 times [2023-02-15 02:22:53,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:53,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769757912] [2023-02-15 02:22:53,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:53,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:53,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:22:53,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769757912] [2023-02-15 02:22:53,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769757912] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:22:53,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162000225] [2023-02-15 02:22:53,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 02:22:53,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:22:53,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:53,656 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:22:53,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 02:22:53,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 02:22:53,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:22:53,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 02:22:53,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:53,701 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:53,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:22:53,770 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:53,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162000225] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:22:53,770 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:22:53,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2023-02-15 02:22:53,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612068208] [2023-02-15 02:22:53,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:22:53,820 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:53,820 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:53,820 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:53,820 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:53,820 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 02:22:53,820 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:53,820 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:53,821 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:53,821 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2023-02-15 02:22:53,821 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:53,821 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:53,822 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,827 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,829 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,830 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,870 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 [2023-02-15 02:22:53,900 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:53,900 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 02:22:53,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:53,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:53,902 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) [2023-02-15 02:22:53,904 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 [2023-02-15 02:22:53,905 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:53,905 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:53,928 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 [2023-02-15 02:22:53,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:53,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:53,933 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) [2023-02-15 02:22:53,941 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 [2023-02-15 02:22:53,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 02:22:53,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:53,965 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 02:22:53,967 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 [2023-02-15 02:22:53,968 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:53,968 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:53,968 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:53,968 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:53,968 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 02:22:53,968 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:53,968 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:53,968 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:53,968 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2023-02-15 02:22:53,968 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:53,968 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:53,969 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,975 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,977 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:53,982 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,019 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:54,019 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 02:22:54,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,020 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 02:22:54,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-15 02:22:54,034 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 [2023-02-15 02:22:54,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:54,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:54,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:54,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:54,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:54,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 02:22:54,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:54,044 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 02:22:54,052 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 02:22:54,052 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-15 02:22:54,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,057 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) [2023-02-15 02:22:54,059 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 [2023-02-15 02:22:54,059 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 02:22:54,059 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 02:22:54,059 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 02:22:54,059 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 7 Supporting invariants [] [2023-02-15 02:22:54,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:54,066 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 02:22:54,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:54,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:54,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:54,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 02:22:54,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:54,105 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-15 02:22:54,106 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 [2023-02-15 02:22:54,106 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:54,121 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 42 transitions. Complement of second has 6 states. [2023-02-15 02:22:54,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-15 02:22:54,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:54,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-15 02:22:54,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 7 letters. [2023-02-15 02:22:54,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:54,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 10 letters. Loop has 7 letters. [2023-02-15 02:22:54,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:54,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 14 letters. [2023-02-15 02:22:54,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:54,123 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2023-02-15 02:22:54,124 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 02:22:54,124 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 31 transitions. [2023-02-15 02:22:54,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-15 02:22:54,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-15 02:22:54,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2023-02-15 02:22:54,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 02:22:54,124 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 31 transitions. [2023-02-15 02:22:54,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2023-02-15 02:22:54,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2023-02-15 02:22:54,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:54,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2023-02-15 02:22:54,126 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 28 transitions. [2023-02-15 02:22:54,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:22:54,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 02:22:54,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2023-02-15 02:22:54,127 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. Second operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:54,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:22:54,151 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2023-02-15 02:22:54,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 49 transitions. [2023-02-15 02:22:54,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 02:22:54,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 49 transitions. [2023-02-15 02:22:54,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-02-15 02:22:54,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-02-15 02:22:54,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 49 transitions. [2023-02-15 02:22:54,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 02:22:54,153 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 49 transitions. [2023-02-15 02:22:54,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 49 transitions. [2023-02-15 02:22:54,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2023-02-15 02:22:54,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 32 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:54,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2023-02-15 02:22:54,155 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-02-15 02:22:54,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 02:22:54,156 INFO L428 stractBuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-02-15 02:22:54,156 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-15 02:22:54,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2023-02-15 02:22:54,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 02:22:54,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:54,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:54,157 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-15 02:22:54,157 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 02:22:54,157 INFO L748 eck$LassoCheckResult]: Stem: 511#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 512#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 507#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 509#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 504#L19-2 [2023-02-15 02:22:54,157 INFO L750 eck$LassoCheckResult]: Loop: 504#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 504#L19-2 [2023-02-15 02:22:54,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,158 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2023-02-15 02:22:54,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:54,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065476469] [2023-02-15 02:22:54,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:54,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:54,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,163 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-02-15 02:22:54,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:54,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829809237] [2023-02-15 02:22:54,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:54,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,167 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:54,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,168 INFO L85 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2023-02-15 02:22:54,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:54,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307505694] [2023-02-15 02:22:54,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:54,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,174 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:54,186 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:54,186 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:54,186 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:54,186 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:54,186 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 02:22:54,187 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,187 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:54,187 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:54,187 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2023-02-15 02:22:54,187 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:54,187 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:54,188 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,190 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,195 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,224 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:54,224 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 02:22:54,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,229 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) [2023-02-15 02:22:54,235 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 [2023-02-15 02:22:54,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:54,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:54,268 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:54,268 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 02:22:54,271 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 [2023-02-15 02:22:54,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,272 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) [2023-02-15 02:22:54,277 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:54,277 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:54,283 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 [2023-02-15 02:22:54,289 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 02:22:54,289 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 02:22:54,292 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 [2023-02-15 02:22:54,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,293 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) [2023-02-15 02:22:54,294 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 [2023-02-15 02:22:54,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:54,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:54,354 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 [2023-02-15 02:22:54,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,355 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) [2023-02-15 02:22:54,356 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 [2023-02-15 02:22:54,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 02:22:54,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:54,374 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 02:22:54,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-02-15 02:22:54,378 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:54,378 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:54,378 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:54,378 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:54,378 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 02:22:54,378 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,378 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:54,378 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:54,378 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2023-02-15 02:22:54,378 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:54,378 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:54,379 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,381 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,383 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,386 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,409 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:54,409 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 02:22:54,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,411 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) [2023-02-15 02:22:54,413 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 [2023-02-15 02:22:54,414 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 [2023-02-15 02:22:54,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:54,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:54,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:54,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:54,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:54,422 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:54,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:54,440 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 [2023-02-15 02:22:54,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,441 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) [2023-02-15 02:22:54,443 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 [2023-02-15 02:22:54,445 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 [2023-02-15 02:22:54,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:54,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:54,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:54,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:54,452 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 02:22:54,452 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 02:22:54,468 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 02:22:54,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-02-15 02:22:54,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,472 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) [2023-02-15 02:22:54,474 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 [2023-02-15 02:22:54,475 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-15 02:22:54,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:54,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:54,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:54,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:54,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:54,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 02:22:54,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:54,497 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 02:22:54,499 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 02:22:54,499 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-15 02:22:54,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,502 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) [2023-02-15 02:22:54,503 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 [2023-02-15 02:22:54,504 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 02:22:54,504 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 02:22:54,504 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 02:22:54,504 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 19 Supporting invariants [] [2023-02-15 02:22:54,509 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 [2023-02-15 02:22:54,509 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 02:22:54,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:54,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:54,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:54,529 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 02:22:54,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:54,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:54,530 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 02:22:54,530 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 10 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:54,537 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 10. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 67 states and 79 transitions. Complement of second has 5 states. [2023-02-15 02:22:54,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-15 02:22:54,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-02-15 02:22:54,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-15 02:22:54,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:54,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-15 02:22:54,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:54,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-15 02:22:54,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:54,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 79 transitions. [2023-02-15 02:22:54,540 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 02:22:54,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 61 states and 72 transitions. [2023-02-15 02:22:54,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-15 02:22:54,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-15 02:22:54,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 72 transitions. [2023-02-15 02:22:54,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 02:22:54,541 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 72 transitions. [2023-02-15 02:22:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 72 transitions. [2023-02-15 02:22:54,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 37. [2023-02-15 02:22:54,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 36 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2023-02-15 02:22:54,543 INFO L240 hiAutomatonCegarLoop]: Abstraction has 37 states and 46 transitions. [2023-02-15 02:22:54,543 INFO L428 stractBuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2023-02-15 02:22:54,543 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-15 02:22:54,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 46 transitions. [2023-02-15 02:22:54,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 02:22:54,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 02:22:54,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 02:22:54,544 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [11, 2, 1, 1, 1, 1] [2023-02-15 02:22:54,544 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 02:22:54,544 INFO L748 eck$LassoCheckResult]: Stem: 645#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 646#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 641#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 638#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 639#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 640#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 673#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 671#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 669#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 667#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 665#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 663#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 661#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 659#L19-2 assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 647#L19-3 main_~i~0#1 := 1 + main_~i~0#1; 648#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 649#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 650#L19-2 [2023-02-15 02:22:54,545 INFO L750 eck$LassoCheckResult]: Loop: 650#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 650#L19-2 [2023-02-15 02:22:54,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,545 INFO L85 PathProgramCache]: Analyzing trace with hash -178305705, now seen corresponding path program 3 times [2023-02-15 02:22:54,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:54,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336876567] [2023-02-15 02:22:54,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:54,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,560 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:54,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,576 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2023-02-15 02:22:54,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:54,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845253195] [2023-02-15 02:22:54,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:54,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:54,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1232509539, now seen corresponding path program 4 times [2023-02-15 02:22:54,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:22:54,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910809974] [2023-02-15 02:22:54,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:22:54,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:22:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,591 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 02:22:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 02:22:54,597 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 02:22:54,609 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:54,609 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:54,609 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:54,609 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:54,610 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 02:22:54,610 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,610 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:54,610 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:54,610 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration5_Loop [2023-02-15 02:22:54,610 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:54,610 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:54,610 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,614 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,615 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,617 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,637 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:54,637 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 02:22:54,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,638 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) [2023-02-15 02:22:54,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 02:22:54,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:54,647 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 [2023-02-15 02:22:54,683 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 [2023-02-15 02:22:54,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,684 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) [2023-02-15 02:22:54,686 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 [2023-02-15 02:22:54,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 02:22:54,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 02:22:54,709 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 02:22:54,714 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 [2023-02-15 02:22:54,715 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 02:22:54,715 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 02:22:54,715 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 02:22:54,715 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 02:22:54,715 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 02:22:54,715 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,715 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 02:22:54,715 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 02:22:54,715 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration5_Loop [2023-02-15 02:22:54,715 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 02:22:54,715 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 02:22:54,716 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,720 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,722 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,724 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 02:22:54,746 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 02:22:54,747 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 02:22:54,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,748 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) [2023-02-15 02:22:54,750 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 [2023-02-15 02:22:54,752 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 [2023-02-15 02:22:54,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 02:22:54,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 02:22:54,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 02:22:54,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 02:22:54,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 02:22:54,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 02:22:54,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 02:22:54,773 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 02:22:54,775 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 02:22:54,775 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-15 02:22:54,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 02:22:54,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:22:54,778 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) [2023-02-15 02:22:54,779 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 [2023-02-15 02:22:54,780 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 02:22:54,780 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 02:22:54,780 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 02:22:54,780 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 19 Supporting invariants [] [2023-02-15 02:22:54,785 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 [2023-02-15 02:22:54,786 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 02:22:54,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:54,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:54,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:54,831 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 [2023-02-15 02:22:54,863 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 [2023-02-15 02:22:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:54,873 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 02:22:54,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:54,874 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 02:22:54,874 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:54,897 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 [2023-02-15 02:22:54,897 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 65 states and 76 transitions. Complement of second has 5 states. [2023-02-15 02:22:54,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-15 02:22:54,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:54,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-02-15 02:22:54,899 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 17 letters. Loop has 1 letters. [2023-02-15 02:22:54,899 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:54,900 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-15 02:22:54,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:54,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:54,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:54,941 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 02:22:54,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:54,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:54,941 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 02:22:54,942 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:54,948 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 65 states and 76 transitions. Complement of second has 5 states. [2023-02-15 02:22:54,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-15 02:22:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:54,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-02-15 02:22:54,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 17 letters. Loop has 1 letters. [2023-02-15 02:22:54,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:54,949 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-15 02:22:54,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:22:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:54,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 02:22:54,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:22:54,982 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 02:22:54,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:22:54,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:22:54,983 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 02:22:54,983 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:55,001 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 42 states and 51 transitions. Complement of second has 4 states. [2023-02-15 02:22:55,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-15 02:22:55,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:22:55,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-02-15 02:22:55,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 17 letters. Loop has 1 letters. [2023-02-15 02:22:55,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:55,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 18 letters. Loop has 1 letters. [2023-02-15 02:22:55,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:55,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 17 letters. Loop has 2 letters. [2023-02-15 02:22:55,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 02:22:55,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 51 transitions. [2023-02-15 02:22:55,003 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 02:22:55,003 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 0 states and 0 transitions. [2023-02-15 02:22:55,004 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 02:22:55,004 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 02:22:55,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 02:22:55,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 02:22:55,004 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:22:55,004 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:22:55,004 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:22:55,004 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-15 02:22:55,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-15 02:22:55,004 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 02:22:55,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-15 02:22:55,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 02:22:55 BoogieIcfgContainer [2023-02-15 02:22:55,009 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 02:22:55,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 02:22:55,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 02:22:55,009 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 02:22:55,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:22:51" (3/4) ... [2023-02-15 02:22:55,011 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 02:22:55,011 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 02:22:55,012 INFO L158 Benchmark]: Toolchain (without parser) took 3470.75ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 72.8MB in the beginning and 88.2MB in the end (delta: -15.4MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2023-02-15 02:22:55,012 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:22:55,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 129.50ms. Allocated memory is still 109.1MB. Free memory was 72.8MB in the beginning and 63.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 02:22:55,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.24ms. Allocated memory is still 109.1MB. Free memory was 63.7MB in the beginning and 62.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:22:55,012 INFO L158 Benchmark]: Boogie Preprocessor took 13.53ms. Allocated memory is still 109.1MB. Free memory was 62.4MB in the beginning and 61.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:22:55,012 INFO L158 Benchmark]: RCFGBuilder took 180.35ms. Allocated memory is still 109.1MB. Free memory was 61.3MB in the beginning and 53.3MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 02:22:55,013 INFO L158 Benchmark]: BuchiAutomizer took 3118.64ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 52.9MB in the beginning and 88.2MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:22:55,013 INFO L158 Benchmark]: Witness Printer took 2.11ms. Allocated memory is still 136.3MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:22:55,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 129.50ms. Allocated memory is still 109.1MB. Free memory was 72.8MB in the beginning and 63.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.24ms. Allocated memory is still 109.1MB. Free memory was 63.7MB in the beginning and 62.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.53ms. Allocated memory is still 109.1MB. Free memory was 62.4MB in the beginning and 61.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 180.35ms. Allocated memory is still 109.1MB. Free memory was 61.3MB in the beginning and 53.3MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3118.64ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 52.9MB in the beginning and 88.2MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.11ms. Allocated memory is still 136.3MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (2 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 5 and consists of 6 locations. One deterministic module has affine ranking function j and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 7 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 6 iterations. TraceHistogramMax:11. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 44 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 10/11 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 55 mSDtfsCounter, 110 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax174 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp93 dnf100 smp100 tf113 neg96 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-15 02:22:55,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-15 02:22:55,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-02-15 02:22:55,425 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