./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/terminator_02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c 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/loops/terminator_02-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 894c556b0f4feb663ec35a01a2d06acf931df74aff57a717fa48cbd5e0bf347b --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:58:38,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:58:38,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:58:38,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:58:38,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:58:38,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:58:38,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:58:38,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:58:38,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:58:38,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:58:38,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:58:38,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:58:38,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:58:38,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:58:38,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:58:38,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:58:38,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:58:38,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:58:38,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:58:38,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:58:38,202 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:58:38,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:58:38,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:58:38,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:58:38,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:58:38,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:58:38,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:58:38,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:58:38,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:58:38,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:58:38,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:58:38,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:58:38,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:58:38,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:58:38,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:58:38,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:58:38,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:58:38,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:58:38,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:58:38,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:58:38,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:58:38,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:58:38,219 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-13 03:58:38,243 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:58:38,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:58:38,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:58:38,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:58:38,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:58:38,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:58:38,246 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:58:38,246 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:58:38,246 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:58:38,247 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:58:38,247 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:58:38,247 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:58:38,247 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:58:38,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:58:38,247 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 03:58:38,248 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:58:38,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:58:38,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 03:58:38,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:58:38,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:58:38,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:58:38,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:58:38,251 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 03:58:38,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:58:38,251 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:58:38,251 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:58:38,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:58:38,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:58:38,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:58:38,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:58:38,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:58:38,253 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:58:38,253 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 894c556b0f4feb663ec35a01a2d06acf931df74aff57a717fa48cbd5e0bf347b [2022-07-13 03:58:38,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:58:38,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:58:38,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:58:38,462 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:58:38,463 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:58:38,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/terminator_02-2.c [2022-07-13 03:58:38,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a2c5f76d/5aa344ef44d94fa3956ed6b7040114d6/FLAGbce1a3ba8 [2022-07-13 03:58:38,849 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:58:38,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-2.c [2022-07-13 03:58:38,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a2c5f76d/5aa344ef44d94fa3956ed6b7040114d6/FLAGbce1a3ba8 [2022-07-13 03:58:38,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a2c5f76d/5aa344ef44d94fa3956ed6b7040114d6 [2022-07-13 03:58:38,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:58:38,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:58:38,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:58:38,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:58:38,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:58:38,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:58:38" (1/1) ... [2022-07-13 03:58:38,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613b5b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:38, skipping insertion in model container [2022-07-13 03:58:38,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:58:38" (1/1) ... [2022-07-13 03:58:38,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:58:38,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:58:38,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-2.c[414,427] [2022-07-13 03:58:39,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:58:39,014 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:58:39,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-2.c[414,427] [2022-07-13 03:58:39,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:58:39,041 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:58:39,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39 WrapperNode [2022-07-13 03:58:39,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:58:39,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:58:39,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:58:39,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:58:39,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,064 INFO L137 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2022-07-13 03:58:39,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:58:39,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:58:39,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:58:39,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:58:39,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:58:39,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:58:39,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:58:39,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:58:39,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (1/1) ... [2022-07-13 03:58:39,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:39,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:39,131 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) [2022-07-13 03:58:39,141 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 [2022-07-13 03:58:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 03:58:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 03:58:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:58:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:58:39,205 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:58:39,206 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:58:39,284 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:58:39,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:58:39,288 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 03:58:39,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:58:39 BoogieIcfgContainer [2022-07-13 03:58:39,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:58:39,290 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:58:39,290 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:58:39,293 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:58:39,293 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:58:39,293 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:58:38" (1/3) ... [2022-07-13 03:58:39,294 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b82b089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:58:39, skipping insertion in model container [2022-07-13 03:58:39,294 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:58:39,294 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:58:39" (2/3) ... [2022-07-13 03:58:39,294 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b82b089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:58:39, skipping insertion in model container [2022-07-13 03:58:39,294 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:58:39,295 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:58:39" (3/3) ... [2022-07-13 03:58:39,295 INFO L354 chiAutomizerObserver]: Analyzing ICFG terminator_02-2.c [2022-07-13 03:58:39,329 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:58:39,329 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:58:39,329 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:58:39,329 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:58:39,330 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:58:39,330 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:58:39,330 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:58:39,330 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:58:39,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:39,343 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:58:39,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:58:39,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:58:39,347 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-13 03:58:39,347 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:58:39,347 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:58:39,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:39,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:58:39,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:58:39,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:58:39,349 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-13 03:58:39,349 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:58:39,353 INFO L752 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 8#L22true assume !!(main_~x~0#1 > -100); 11#L23true assume !!(main_~x~0#1 < 200); 12#L24true assume !!(main_~z~0#1 > 100); 5#L25true assume !!(main_~z~0#1 < 200); 16#L29-2true [2022-07-13 03:58:39,354 INFO L754 eck$LassoCheckResult]: Loop: 16#L29-2true assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 6#L29true assume 0 != main_~tmp~0#1 % 256;main_#t~post7#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 16#L29-2true [2022-07-13 03:58:39,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:39,358 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2022-07-13 03:58:39,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:39,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090519488] [2022-07-13 03:58:39,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:39,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:39,432 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:39,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:39,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:39,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 1 times [2022-07-13 03:58:39,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:39,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216895571] [2022-07-13 03:58:39,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:39,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:39,513 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:39,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:39,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:39,524 INFO L85 PathProgramCache]: Analyzing trace with hash 179567792, now seen corresponding path program 1 times [2022-07-13 03:58:39,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:39,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725108] [2022-07-13 03:58:39,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:39,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:39,548 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:39,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:39,651 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:39,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:39,660 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:39,660 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:39,660 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:58:39,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:39,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:39,660 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:39,660 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2022-07-13 03:58:39,661 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:39,661 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:39,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:39,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:39,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:39,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:39,792 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:39,792 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:58:39,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:39,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:39,795 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) [2022-07-13 03:58:39,797 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 [2022-07-13 03:58:39,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:39,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:39,846 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 [2022-07-13 03:58:39,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:39,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:39,848 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) [2022-07-13 03:58:39,849 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 [2022-07-13 03:58:39,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:58:39,853 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:39,892 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:58:39,909 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 [2022-07-13 03:58:39,910 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:39,910 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:39,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:39,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:39,910 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:58:39,910 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:39,910 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:39,910 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:39,910 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2022-07-13 03:58:39,910 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:39,910 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:39,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:39,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:39,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:39,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:39,996 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:39,999 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:58:40,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,020 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) [2022-07-13 03:58:40,024 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 [2022-07-13 03:58:40,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:40,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:40,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:40,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:40,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:40,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:40,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:40,044 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 [2022-07-13 03:58:40,046 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:58:40,049 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:58:40,049 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:58:40,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,071 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) [2022-07-13 03:58:40,088 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:58:40,088 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:58:40,089 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:58:40,089 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 199 Supporting invariants [] [2022-07-13 03:58:40,104 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 [2022-07-13 03:58:40,121 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 [2022-07-13 03:58:40,124 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:58:40,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:40,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:58:40,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:40,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:58:40,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:40,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:58:40,208 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:58:40,209 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:40,250 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 56 transitions. Complement of second has 8 states. [2022-07-13 03:58:40,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:58:40,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:40,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2022-07-13 03:58:40,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-13 03:58:40,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:40,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 8 letters. Loop has 2 letters. [2022-07-13 03:58:40,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:40,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-13 03:58:40,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:40,259 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 56 transitions. [2022-07-13 03:58:40,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:58:40,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 12 states and 15 transitions. [2022-07-13 03:58:40,267 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-07-13 03:58:40,267 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-13 03:58:40,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2022-07-13 03:58:40,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:58:40,268 INFO L369 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-07-13 03:58:40,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2022-07-13 03:58:40,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-07-13 03:58:40,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:40,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2022-07-13 03:58:40,310 INFO L392 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-07-13 03:58:40,310 INFO L374 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-07-13 03:58:40,310 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:58:40,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2022-07-13 03:58:40,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:58:40,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:58:40,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:58:40,313 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:58:40,313 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:58:40,314 INFO L752 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 110#L22 assume !!(main_~x~0#1 > -100); 111#L23 assume !!(main_~x~0#1 < 200); 120#L24 assume !!(main_~z~0#1 > 100); 114#L25 assume !!(main_~z~0#1 < 200); 115#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 116#L29 assume !(0 != main_~tmp~0#1 % 256);main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1;main_#t~post9#1 := main_~z~0#1;main_~z~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1; 117#L29-2 [2022-07-13 03:58:40,314 INFO L754 eck$LassoCheckResult]: Loop: 117#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 121#L29 assume 0 != main_~tmp~0#1 % 256;main_#t~post7#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 117#L29-2 [2022-07-13 03:58:40,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:40,315 INFO L85 PathProgramCache]: Analyzing trace with hash 179567794, now seen corresponding path program 1 times [2022-07-13 03:58:40,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:40,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107746434] [2022-07-13 03:58:40,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:40,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,336 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:40,336 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 [2022-07-13 03:58:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:40,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:40,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 2 times [2022-07-13 03:58:40,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:40,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238009888] [2022-07-13 03:58:40,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:40,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,353 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:40,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:40,356 INFO L85 PathProgramCache]: Analyzing trace with hash 765959189, now seen corresponding path program 1 times [2022-07-13 03:58:40,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:40,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577545333] [2022-07-13 03:58:40,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:40,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,363 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:40,391 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:40,392 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:40,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:40,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:40,392 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:58:40,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:40,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:40,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2022-07-13 03:58:40,393 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:40,393 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:40,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,461 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:40,461 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:58:40,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,462 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) [2022-07-13 03:58:40,463 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 [2022-07-13 03:58:40,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:40,466 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:40,483 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:58:40,483 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=101} Honda state: {ULTIMATE.start_main_~z~0#1=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:58:40,499 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 [2022-07-13 03:58:40,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,500 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) [2022-07-13 03:58:40,508 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 [2022-07-13 03:58:40,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:40,508 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:40,532 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 [2022-07-13 03:58:40,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,539 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) [2022-07-13 03:58:40,540 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 [2022-07-13 03:58:40,541 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:58:40,541 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:40,587 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:58:40,592 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 [2022-07-13 03:58:40,592 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:40,593 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:40,593 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:40,593 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:40,593 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:58:40,593 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,593 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:40,593 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:40,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2022-07-13 03:58:40,593 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:40,593 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:40,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,659 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:40,659 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:58:40,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,660 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) [2022-07-13 03:58:40,661 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 [2022-07-13 03:58:40,662 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 [2022-07-13 03:58:40,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:40,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:40,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:40,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:40,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:40,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:40,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:40,699 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:58:40,739 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 [2022-07-13 03:58:40,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,747 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) [2022-07-13 03:58:40,748 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 [2022-07-13 03:58:40,749 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 [2022-07-13 03:58:40,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:40,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:40,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:40,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:40,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:40,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:40,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:40,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:58:40,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-07-13 03:58:40,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,787 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) [2022-07-13 03:58:40,789 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 [2022-07-13 03:58:40,790 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 [2022-07-13 03:58:40,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:40,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:40,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:40,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:40,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:40,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:40,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:40,799 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:58:40,801 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:58:40,801 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:58:40,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:40,802 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) [2022-07-13 03:58:40,803 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 [2022-07-13 03:58:40,803 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:58:40,804 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:58:40,804 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:58:40,804 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 199 Supporting invariants [] [2022-07-13 03:58:40,818 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 [2022-07-13 03:58:40,820 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:58:40,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:40,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:58:40,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:40,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:58:40,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:40,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:58:40,857 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:58:40,858 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:40,864 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 5 states. [2022-07-13 03:58:40,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:58:40,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:40,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2022-07-13 03:58:40,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2022-07-13 03:58:40,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:40,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2022-07-13 03:58:40,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:40,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2022-07-13 03:58:40,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:40,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2022-07-13 03:58:40,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:58:40,867 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 21 transitions. [2022-07-13 03:58:40,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-07-13 03:58:40,867 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-07-13 03:58:40,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2022-07-13 03:58:40,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:58:40,867 INFO L369 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2022-07-13 03:58:40,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2022-07-13 03:58:40,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-07-13 03:58:40,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:40,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2022-07-13 03:58:40,868 INFO L392 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2022-07-13 03:58:40,869 INFO L374 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2022-07-13 03:58:40,869 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:58:40,869 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2022-07-13 03:58:40,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:58:40,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:58:40,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:58:40,869 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 03:58:40,869 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:58:40,870 INFO L752 eck$LassoCheckResult]: Stem: 191#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 192#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 189#L22 assume !!(main_~x~0#1 > -100); 190#L23 assume !!(main_~x~0#1 < 200); 195#L24 assume !!(main_~z~0#1 > 100); 193#L25 assume !!(main_~z~0#1 < 200); 194#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 196#L29 assume !(0 != main_~tmp~0#1 % 256);main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1;main_#t~post9#1 := main_~z~0#1;main_~z~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1; 197#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 202#L29 assume !(0 != main_~tmp~0#1 % 256);main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1;main_#t~post9#1 := main_~z~0#1;main_~z~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1; 200#L29-2 [2022-07-13 03:58:40,870 INFO L754 eck$LassoCheckResult]: Loop: 200#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 201#L29 assume 0 != main_~tmp~0#1 % 256;main_#t~post7#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 200#L29-2 [2022-07-13 03:58:40,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:40,870 INFO L85 PathProgramCache]: Analyzing trace with hash 765959191, now seen corresponding path program 2 times [2022-07-13 03:58:40,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:40,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126808035] [2022-07-13 03:58:40,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:40,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,877 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:40,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 3 times [2022-07-13 03:58:40,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:40,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212385226] [2022-07-13 03:58:40,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:40,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,888 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,890 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:40,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:40,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1647375930, now seen corresponding path program 2 times [2022-07-13 03:58:40,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:40,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173977896] [2022-07-13 03:58:40,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:40,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,897 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:40,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:40,956 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:40,956 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:40,956 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:40,956 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:40,956 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:58:40,957 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:40,957 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:40,957 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:40,957 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2022-07-13 03:58:40,957 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:40,957 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:40,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:40,972 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 [2022-07-13 03:58:41,055 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:41,056 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:58:41,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,072 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) [2022-07-13 03:58:41,099 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 [2022-07-13 03:58:41,100 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:41,100 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,124 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:58:41,124 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=101} Honda state: {ULTIMATE.start_main_~z~0#1=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:58:41,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-07-13 03:58:41,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,147 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) [2022-07-13 03:58:41,148 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 [2022-07-13 03:58:41,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:41,151 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,166 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:58:41,167 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0#1=192, ULTIMATE.start_main_#t~nondet6#1=192} Honda state: {ULTIMATE.start_main_~tmp~0#1=192, ULTIMATE.start_main_#t~nondet6#1=192} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:58:41,181 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 [2022-07-13 03:58:41,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,183 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) [2022-07-13 03:58:41,187 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 [2022-07-13 03:58:41,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:41,188 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:41,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,213 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) [2022-07-13 03:58:41,214 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 [2022-07-13 03:58:41,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:58:41,215 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,241 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:58:41,244 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 [2022-07-13 03:58:41,244 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:41,245 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:41,245 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:41,245 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:41,245 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:58:41,245 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,245 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:41,245 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:41,245 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2022-07-13 03:58:41,245 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:41,245 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:41,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,301 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:41,301 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:58:41,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,303 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) [2022-07-13 03:58:41,318 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 [2022-07-13 03:58:41,318 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 [2022-07-13 03:58:41,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:41,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:41,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:41,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:41,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:41,325 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:41,325 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:41,325 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:58:41,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-07-13 03:58:41,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,342 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) [2022-07-13 03:58:41,343 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 [2022-07-13 03:58:41,344 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 [2022-07-13 03:58:41,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:41,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:41,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:41,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:41,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:41,351 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:41,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:41,362 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:58:41,363 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:58:41,364 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:58:41,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,365 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) [2022-07-13 03:58:41,397 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 [2022-07-13 03:58:41,397 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:58:41,397 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:58:41,397 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:58:41,397 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 199 Supporting invariants [] [2022-07-13 03:58:41,412 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 [2022-07-13 03:58:41,413 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:58:41,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:41,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:58:41,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:41,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:58:41,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:41,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:58:41,453 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:58:41,453 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:41,461 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 25 transitions. Complement of second has 5 states. [2022-07-13 03:58:41,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:58:41,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:41,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2022-07-13 03:58:41,462 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2022-07-13 03:58:41,462 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:41,462 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:58:41,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:41,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:58:41,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:41,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:58:41,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:41,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:58:41,496 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:58:41,496 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:41,501 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 25 transitions. Complement of second has 5 states. [2022-07-13 03:58:41,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:58:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2022-07-13 03:58:41,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2022-07-13 03:58:41,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:41,502 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:58:41,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:41,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:58:41,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:41,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:58:41,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:41,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:58:41,535 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:58:41,535 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:41,541 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 28 transitions. Complement of second has 4 states. [2022-07-13 03:58:41,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:58:41,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:41,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2022-07-13 03:58:41,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2022-07-13 03:58:41,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:41,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2022-07-13 03:58:41,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:41,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-13 03:58:41,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:41,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2022-07-13 03:58:41,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-13 03:58:41,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 24 transitions. [2022-07-13 03:58:41,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-13 03:58:41,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-07-13 03:58:41,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2022-07-13 03:58:41,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:58:41,544 INFO L369 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2022-07-13 03:58:41,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2022-07-13 03:58:41,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 10. [2022-07-13 03:58:41,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:41,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-07-13 03:58:41,545 INFO L392 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-07-13 03:58:41,545 INFO L374 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-07-13 03:58:41,545 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 03:58:41,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2022-07-13 03:58:41,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-13 03:58:41,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:58:41,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:58:41,546 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-13 03:58:41,546 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:58:41,546 INFO L752 eck$LassoCheckResult]: Stem: 403#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 404#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 401#L22 assume !!(main_~x~0#1 > -100); 402#L23 assume !!(main_~x~0#1 < 200); 410#L24 assume !!(main_~z~0#1 > 100); 405#L25 assume !!(main_~z~0#1 < 200); 406#L29-2 [2022-07-13 03:58:41,546 INFO L754 eck$LassoCheckResult]: Loop: 406#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 407#L29 assume !(0 != main_~tmp~0#1 % 256);main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1;main_#t~post9#1 := main_~z~0#1;main_~z~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1; 406#L29-2 [2022-07-13 03:58:41,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:41,546 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 2 times [2022-07-13 03:58:41,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:41,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114184245] [2022-07-13 03:58:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:41,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:41,550 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:41,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:41,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:41,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 1 times [2022-07-13 03:58:41,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:41,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292251828] [2022-07-13 03:58:41,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:41,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:41,555 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:41,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:41,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:41,557 INFO L85 PathProgramCache]: Analyzing trace with hash 179567794, now seen corresponding path program 3 times [2022-07-13 03:58:41,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:58:41,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627932046] [2022-07-13 03:58:41,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:58:41,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:58:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:41,561 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:58:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:58:41,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:58:41,598 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:41,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:41,598 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:41,598 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:41,598 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:58:41,598 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,598 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:41,598 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:41,598 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2022-07-13 03:58:41,598 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:41,598 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:41,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,638 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 [2022-07-13 03:58:41,690 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:41,690 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:58:41,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,691 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) [2022-07-13 03:58:41,707 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 [2022-07-13 03:58:41,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:41,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,729 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:58:41,729 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0#1=0, ULTIMATE.start_main_#t~nondet6#1=0} Honda state: {ULTIMATE.start_main_~tmp~0#1=0, ULTIMATE.start_main_#t~nondet6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:58:41,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:41,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,746 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:41,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-13 03:58:41,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:41,748 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:58:41,754 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post9#1=0} Honda state: {ULTIMATE.start_main_#t~post9#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:58:41,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:41,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,771 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:41,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-13 03:58:41,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:41,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:41,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,796 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:41,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-13 03:58:41,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:58:41,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,831 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:58:41,831 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=99} Honda state: {ULTIMATE.start_main_~x~0#1=99} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 13, 8] Nus: [1, 1] [2022-07-13 03:58:41,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-07-13 03:58:41,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,847 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:41,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-13 03:58:41,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:41,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,878 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:58:41,878 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8#1=0} Honda state: {ULTIMATE.start_main_#t~post8#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:58:41,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-07-13 03:58:41,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,894 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:41,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-13 03:58:41,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:58:41,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:41,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:41,928 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:41,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-13 03:58:41,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:58:41,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:58:41,955 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:58:41,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-07-13 03:58:41,958 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:58:41,958 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:58:41,958 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:58:41,958 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:58:41,958 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:58:41,958 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:41,958 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:58:41,958 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:58:41,958 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2022-07-13 03:58:41,958 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:58:41,959 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:58:41,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:41,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:58:42,025 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:58:42,025 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:58:42,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:42,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:42,026 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:42,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-13 03:58:42,029 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 [2022-07-13 03:58:42,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:42,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:42,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:42,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:42,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:42,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:42,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:42,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:58:42,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:42,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:42,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:42,082 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:42,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-13 03:58:42,115 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 [2022-07-13 03:58:42,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:42,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:42,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:42,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:42,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:42,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:42,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:42,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:58:42,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-07-13 03:58:42,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:42,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:42,148 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:42,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-13 03:58:42,151 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 [2022-07-13 03:58:42,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:42,157 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:42,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:42,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:42,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:42,159 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:42,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:42,187 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:58:42,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-07-13 03:58:42,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:42,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:42,220 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:42,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-13 03:58:42,222 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 [2022-07-13 03:58:42,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:42,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:42,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:42,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:42,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:42,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:42,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:42,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:58:42,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-07-13 03:58:42,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:42,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:42,252 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:42,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-13 03:58:42,253 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 [2022-07-13 03:58:42,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:58:42,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:58:42,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:58:42,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:58:42,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:58:42,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:58:42,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:58:42,261 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:58:42,264 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:58:42,264 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:58:42,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:58:42,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:58:42,265 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:58:42,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-13 03:58:42,266 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:58:42,267 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:58:42,267 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:58:42,267 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2022-07-13 03:58:42,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-07-13 03:58:42,283 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:58:42,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:58:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:42,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:58:42,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:58:42,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:58:42,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:58:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:58:42,321 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:58:42,322 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:42,327 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 22 transitions. Complement of second has 4 states. [2022-07-13 03:58:42,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:58:42,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:58:42,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-07-13 03:58:42,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-13 03:58:42,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:42,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2022-07-13 03:58:42,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:42,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-13 03:58:42,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:58:42,328 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2022-07-13 03:58:42,329 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:58:42,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2022-07-13 03:58:42,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 03:58:42,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 03:58:42,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 03:58:42,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:58:42,329 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:58:42,329 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:58:42,329 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:58:42,329 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-13 03:58:42,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 03:58:42,329 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:58:42,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 03:58:42,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:58:42 BoogieIcfgContainer [2022-07-13 03:58:42,349 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:58:42,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:58:42,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:58:42,349 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:58:42,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:58:39" (3/4) ... [2022-07-13 03:58:42,351 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 03:58:42,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:58:42,352 INFO L158 Benchmark]: Toolchain (without parser) took 3487.37ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 57.9MB in the beginning and 51.8MB in the end (delta: 6.1MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-07-13 03:58:42,352 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory was 45.7MB in the beginning and 45.6MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:58:42,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.57ms. Allocated memory is still 86.0MB. Free memory was 57.7MB in the beginning and 62.8MB in the end (delta: -5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:58:42,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.83ms. Allocated memory is still 86.0MB. Free memory was 62.8MB in the beginning and 61.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:58:42,353 INFO L158 Benchmark]: Boogie Preprocessor took 26.83ms. Allocated memory is still 86.0MB. Free memory was 61.3MB in the beginning and 60.5MB in the end (delta: 737.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:58:42,353 INFO L158 Benchmark]: RCFGBuilder took 196.56ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 51.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:58:42,353 INFO L158 Benchmark]: BuchiAutomizer took 3058.94ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 51.2MB in the beginning and 52.1MB in the end (delta: -928.6kB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-07-13 03:58:42,353 INFO L158 Benchmark]: Witness Printer took 2.38ms. Allocated memory is still 104.9MB. Free memory was 52.1MB in the beginning and 51.8MB in the end (delta: 326.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:58:42,354 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory was 45.7MB in the beginning and 45.6MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.57ms. Allocated memory is still 86.0MB. Free memory was 57.7MB in the beginning and 62.8MB in the end (delta: -5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.83ms. Allocated memory is still 86.0MB. Free memory was 62.8MB in the beginning and 61.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.83ms. Allocated memory is still 86.0MB. Free memory was 61.3MB in the beginning and 60.5MB in the end (delta: 737.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 196.56ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 51.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3058.94ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 51.2MB in the beginning and 52.1MB in the end (delta: -928.6kB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Witness Printer took 2.38ms. Allocated memory is still 104.9MB. Free memory was 52.1MB in the beginning and 51.8MB in the end (delta: 326.1kB). 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 199 + -2 * x and consists of 5 locations. One deterministic module has affine ranking function 199 + -2 * x and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function 199 + -2 * x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 60 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div444 bol100 ite100 ukn100 eq150 hnf95 smp41 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 89ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 03:58:42,375 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 [2022-07-13 03:58:42,592 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