./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.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 1ab1611c68b20ff5721c195b0d2c7506cb1678fd2a0003f8a2214f630d652abe --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:14:12,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:14:12,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:14:12,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:14:12,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:14:12,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:14:12,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:14:12,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:14:12,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:14:12,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:14:12,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:14:12,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:14:12,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:14:12,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:14:12,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:14:12,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:14:12,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:14:12,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:14:12,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:14:12,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:14:12,181 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:14:12,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:14:12,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:14:12,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:14:12,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:14:12,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:14:12,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:14:12,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:14:12,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:14:12,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:14:12,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:14:12,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:14:12,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:14:12,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:14:12,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:14:12,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:14:12,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:14:12,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:14:12,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:14:12,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:14:12,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:14:12,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:14:12,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-23 14:14:12,233 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:14:12,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:14:12,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:14:12,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:14:12,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:14:12,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:14:12,235 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:14:12,236 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 14:14:12,236 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 14:14:12,236 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 14:14:12,237 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 14:14:12,237 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 14:14:12,237 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 14:14:12,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:14:12,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:14:12,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:14:12,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:14:12,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 14:14:12,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 14:14:12,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 14:14:12,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:14:12,239 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 14:14:12,239 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:14:12,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 14:14:12,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:14:12,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:14:12,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:14:12,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:14:12,241 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 14:14:12,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ab1611c68b20ff5721c195b0d2c7506cb1678fd2a0003f8a2214f630d652abe [2022-07-23 14:14:12,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:14:12,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:14:12,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:14:12,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:14:12,423 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:14:12,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c [2022-07-23 14:14:12,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49dfdce1f/f8fa394cfac24702a850ef213526ff0e/FLAG3cd997fba [2022-07-23 14:14:12,832 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:14:12,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c [2022-07-23 14:14:12,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49dfdce1f/f8fa394cfac24702a850ef213526ff0e/FLAG3cd997fba [2022-07-23 14:14:12,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49dfdce1f/f8fa394cfac24702a850ef213526ff0e [2022-07-23 14:14:12,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:14:12,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:14:12,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:14:12,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:14:12,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:14:12,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:14:12" (1/1) ... [2022-07-23 14:14:12,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@887854c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:12, skipping insertion in model container [2022-07-23 14:14:12,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:14:12" (1/1) ... [2022-07-23 14:14:12,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:14:12,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:14:12,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:14:12,970 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:14:12,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:14:13,002 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:14:13,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:13 WrapperNode [2022-07-23 14:14:13,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:14:13,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:14:13,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:14:13,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:14:13,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:13" (1/1) ... [2022-07-23 14:14:13,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:13" (1/1) ... [2022-07-23 14:14:13,026 INFO L137 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2022-07-23 14:14:13,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:14:13,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:14:13,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:14:13,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:14:13,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:13" (1/1) ... [2022-07-23 14:14:13,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:13" (1/1) ... [2022-07-23 14:14:13,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:13" (1/1) ... [2022-07-23 14:14:13,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:13" (1/1) ... [2022-07-23 14:14:13,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:13" (1/1) ... [2022-07-23 14:14:13,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:13" (1/1) ... [2022-07-23 14:14:13,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:13" (1/1) ... [2022-07-23 14:14:13,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:14:13,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:14:13,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:14:13,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:14:13,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:13" (1/1) ... [2022-07-23 14:14:13,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:13,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:13,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:13,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-23 14:14:13,098 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-23 14:14:13,098 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-23 14:14:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:14:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:14:13,143 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:14:13,145 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:14:13,208 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:14:13,212 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:14:13,212 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 14:14:13,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:14:13 BoogieIcfgContainer [2022-07-23 14:14:13,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:14:13,214 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 14:14:13,215 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 14:14:13,224 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 14:14:13,224 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:14:13,225 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 02:14:12" (1/3) ... [2022-07-23 14:14:13,225 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e9bd709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:14:13, skipping insertion in model container [2022-07-23 14:14:13,225 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:14:13,225 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:14:13" (2/3) ... [2022-07-23 14:14:13,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e9bd709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:14:13, skipping insertion in model container [2022-07-23 14:14:13,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:14:13,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:14:13" (3/3) ... [2022-07-23 14:14:13,227 INFO L354 chiAutomizerObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex5.c [2022-07-23 14:14:13,295 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 14:14:13,296 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 14:14:13,296 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 14:14:13,296 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 14:14:13,296 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 14:14:13,296 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 14:14:13,296 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 14:14:13,296 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 14:14:13,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 14:14:13,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-23 14:14:13,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:14:13,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:14:13,318 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-23 14:14:13,318 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:14:13,318 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 14:14:13,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 14:14:13,320 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-23 14:14:13,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:14:13,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:14:13,321 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-23 14:14:13,321 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:14:13,325 INFO L752 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~x~0#1, main_~y~0#1;main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 16#L28true assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 8#L29true call main_#t~ret4#1 := f(main_~x~0#1, main_~y~0#1);< 13#fENTRYtrue [2022-07-23 14:14:13,326 INFO L754 eck$LassoCheckResult]: Loop: 13#fENTRYtrue ~x := #in~x;~y := #in~y; 6#L14true assume !(0 == ~y); 17#L17true assume 0 == ~x; 15#L18true call #t~ret0 := f(~y, ~y - 1);< 13#fENTRYtrue [2022-07-23 14:14:13,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:14:13,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1356593, now seen corresponding path program 1 times [2022-07-23 14:14:13,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:14:13,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565238663] [2022-07-23 14:14:13,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:14:13,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:14:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:14:13,418 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:14:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:14:13,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:14:13,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:14:13,450 INFO L85 PathProgramCache]: Analyzing trace with hash 927611, now seen corresponding path program 1 times [2022-07-23 14:14:13,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:14:13,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163233925] [2022-07-23 14:14:13,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:14:13,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:14:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:14:13,463 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:14:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:14:13,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:14:13,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:14:13,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1288322389, now seen corresponding path program 1 times [2022-07-23 14:14:13,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:14:13,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263903054] [2022-07-23 14:14:13,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:14:13,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:14:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:14:13,496 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:14:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:14:13,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:14:13,636 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:14:13,637 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:14:13,637 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:14:13,637 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:14:13,638 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:14:13,638 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:13,638 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:14:13,638 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:14:13,638 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex5.c_Iteration1_Loop [2022-07-23 14:14:13,638 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:14:13,639 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:14:13,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:13,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:13,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:13,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:13,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:13,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:13,767 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:14:13,767 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:14:13,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:13,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:13,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:13,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-23 14:14:13,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:14:13,785 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:14:13,796 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:14:13,796 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_~x=0} Honda state: {f_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:14:13,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:13,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:13,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:13,822 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:13,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-23 14:14:13,824 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:14:13,824 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:14:13,843 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:14:13,844 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret1=0} Honda state: {f_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:14:13,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:13,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:13,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:13,863 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:13,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-23 14:14:13,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:14:13,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:14:13,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:13,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:13,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:13,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:13,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-23 14:14:13,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:14:13,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:14:13,958 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:14:13,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:13,965 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:14:13,965 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:14:13,965 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:14:13,965 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:14:13,965 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:14:13,965 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:13,965 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:14:13,965 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:14:13,965 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex5.c_Iteration1_Loop [2022-07-23 14:14:13,965 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:14:13,965 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:14:13,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:13,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:13,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:13,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:13,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:13,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:14,049 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:14:14,052 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:14:14,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:14,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:14,054 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:14,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-23 14:14:14,056 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:14:14,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:14:14,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:14:14,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:14:14,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:14:14,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:14:14,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:14:14,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:14:14,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:14:14,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:14,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:14,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:14,094 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:14,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-23 14:14:14,096 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:14:14,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:14:14,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:14:14,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:14:14,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:14:14,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:14:14,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:14:14,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:14:14,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:14:14,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-23 14:14:14,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:14,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:14,121 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:14,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-23 14:14:14,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:14:14,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:14:14,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:14:14,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:14:14,130 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-23 14:14:14,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:14:14,133 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-23 14:14:14,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:14:14,142 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:14:14,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:14,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:14,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:14,162 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:14,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-23 14:14:14,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:14:14,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:14:14,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:14:14,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:14:14,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:14:14,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:14:14,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:14:14,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:14:14,177 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:14:14,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:14,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:14,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:14,197 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:14,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-23 14:14:14,198 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:14:14,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:14:14,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:14:14,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:14:14,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:14:14,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:14:14,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:14:14,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:14:14,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:14:14,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:14,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:14,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:14,237 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:14,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-23 14:14:14,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:14:14,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:14:14,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:14:14,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:14:14,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:14:14,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:14:14,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:14:14,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:14:14,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:14:14,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-07-23 14:14:14,271 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-07-23 14:14:14,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:14,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:14,272 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:14,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-23 14:14:14,274 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:14:14,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:14:14,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:14:14,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:14:14,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:14:14,280 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-07-23 14:14:14,281 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-07-23 14:14:14,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:14:14,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:14:14,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:14,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:14,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:14,300 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:14,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-23 14:14:14,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:14:14,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:14:14,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:14:14,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:14:14,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:14:14,313 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-07-23 14:14:14,314 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-07-23 14:14:14,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:14:14,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:14:14,334 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 [2022-07-23 14:14:14,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:14,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:14,335 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:14,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-23 14:14:14,340 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:14:14,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:14:14,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:14:14,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:14:14,355 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-23 14:14:14,355 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-07-23 14:14:14,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:14:14,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:14:14,379 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:14:14,383 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:14:14,383 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:14:14,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:14,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:14,385 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:14,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-23 14:14:14,387 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:14:14,387 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:14:14,387 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:14:14,388 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*f_#in~y + 1 f1 = 2*f_#in~x + 1 Supporting invariants [] [2022-07-23 14:14:14,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:14,433 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:14:14,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:14:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:14:14,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:14:14,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:14:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:14:14,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-23 14:14:14,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:14:14,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-07-23 14:14:14,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:14:14,793 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-23 14:14:14,794 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:14:15,005 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 60 transitions. Complement of second has 16 states. [2022-07-23 14:14:15,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-23 14:14:15,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:14:15,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2022-07-23 14:14:15,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 4 letters. [2022-07-23 14:14:15,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:14:15,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2022-07-23 14:14:15,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:14:15,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2022-07-23 14:14:15,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:14:15,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2022-07-23 14:14:15,016 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-23 14:14:15,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 23 states and 26 transitions. [2022-07-23 14:14:15,019 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-07-23 14:14:15,020 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-07-23 14:14:15,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 26 transitions. [2022-07-23 14:14:15,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:14:15,020 INFO L369 hiAutomatonCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-07-23 14:14:15,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 26 transitions. [2022-07-23 14:14:15,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 16. [2022-07-23 14:14:15,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:14:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-07-23 14:14:15,036 INFO L392 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-07-23 14:14:15,036 INFO L374 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-07-23 14:14:15,037 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 14:14:15,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2022-07-23 14:14:15,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-23 14:14:15,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:14:15,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:14:15,038 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:14:15,038 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:14:15,038 INFO L752 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 136#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~x~0#1, main_~y~0#1;main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 146#L28 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 140#L29 call main_#t~ret4#1 := f(main_~x~0#1, main_~y~0#1);< 147#fENTRY ~x := #in~x;~y := #in~y; 137#L14 assume !(0 == ~y); 139#L17 assume !(0 == ~x); 143#L20 [2022-07-23 14:14:15,038 INFO L754 eck$LassoCheckResult]: Loop: 143#L20 call #t~ret1 := f(~y, ~x - 1);< 144#fENTRY ~x := #in~x;~y := #in~y; 150#L14 assume !(0 == ~y); 149#L17 assume !(0 == ~x); 143#L20 [2022-07-23 14:14:15,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:14:15,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1759556533, now seen corresponding path program 1 times [2022-07-23 14:14:15,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:14:15,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144825096] [2022-07-23 14:14:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:14:15,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:14:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:14:15,043 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:14:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:14:15,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:14:15,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:14:15,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1847176, now seen corresponding path program 1 times [2022-07-23 14:14:15,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:14:15,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403311774] [2022-07-23 14:14:15,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:14:15,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:14:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:14:15,052 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:14:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:14:15,054 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:14:15,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:14:15,055 INFO L85 PathProgramCache]: Analyzing trace with hash -581703364, now seen corresponding path program 1 times [2022-07-23 14:14:15,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:14:15,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249091816] [2022-07-23 14:14:15,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:14:15,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:14:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:14:15,061 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:14:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:14:15,066 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:14:15,119 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:14:15,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:14:15,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:14:15,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:14:15,120 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:14:15,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:15,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:14:15,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:14:15,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex5.c_Iteration2_Loop [2022-07-23 14:14:15,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:14:15,120 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:14:15,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:15,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:15,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:15,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:14:15,212 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:14:15,213 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:14:15,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:15,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:15,215 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:15,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:14:15,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:14:15,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-23 14:14:15,256 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:14:15,256 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret1=0} Honda state: {f_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:14:15,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:15,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:15,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:15,276 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:15,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-23 14:14:15,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:14:15,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:14:15,311 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:14:15,312 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~ret0=0} Honda state: {f_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:14:15,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:15,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:15,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:15,335 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:15,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-23 14:14:15,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:14:15,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:14:15,360 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:14:15,360 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#res=0} Honda state: {f_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:14:15,379 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 [2022-07-23 14:14:15,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:15,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:15,381 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:15,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-23 14:14:15,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:14:15,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:14:15,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-23 14:14:15,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:14:15,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:14:15,418 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:14:15,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-23 14:14:15,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:14:15,420 INFO L160 nArgumentSynthesizer]: Using integer mode.