./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.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 204191ead1587ea90112b625e2d6c8601a1f61e6 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 16:38:10,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:38:10,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:38:10,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:38:10,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:38:10,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:38:10,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:38:10,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:38:10,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:38:10,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:38:10,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:38:10,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:38:10,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:38:10,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:38:10,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:38:10,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:38:10,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:38:10,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:38:10,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:38:10,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:38:10,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:38:10,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:38:10,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:38:10,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:38:10,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:38:10,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:38:10,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:38:10,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:38:10,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:38:10,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:38:10,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:38:10,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:38:10,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:38:10,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:38:10,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:38:10,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:38:10,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:38:10,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:38:10,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:38:10,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:38:10,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:38:10,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:38:10,932 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:38:10,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:38:10,933 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:38:10,933 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:38:10,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:38:10,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:38:10,935 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:38:10,936 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:38:10,936 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:38:10,936 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:38:10,937 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:38:10,937 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:38:10,937 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:38:10,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:38:10,937 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:38:10,938 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:38:10,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:38:10,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:38:10,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:38:10,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:38:10,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:38:10,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:38:10,939 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:38:10,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:38:10,939 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:38:10,939 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:38:10,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:38:10,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:38:10,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:38:10,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:38:10,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:38:10,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:38:10,942 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:38:10,942 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 204191ead1587ea90112b625e2d6c8601a1f61e6 [2021-08-27 16:38:11,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:38:11,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:38:11,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:38:11,264 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:38:11,265 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:38:11,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2021-08-27 16:38:11,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad28c94ea/b441c01ade8a45b6892bf4cf584f7832/FLAG18d35bf32 [2021-08-27 16:38:11,774 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:38:11,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2021-08-27 16:38:11,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad28c94ea/b441c01ade8a45b6892bf4cf584f7832/FLAG18d35bf32 [2021-08-27 16:38:12,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad28c94ea/b441c01ade8a45b6892bf4cf584f7832 [2021-08-27 16:38:12,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:38:12,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:38:12,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:38:12,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:38:12,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:38:12,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:38:12" (1/1) ... [2021-08-27 16:38:12,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc7c899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12, skipping insertion in model container [2021-08-27 16:38:12,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:38:12" (1/1) ... [2021-08-27 16:38:12,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:38:12,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:38:12,403 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c[12835,12848] [2021-08-27 16:38:12,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:38:12,427 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:38:12,483 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c[12835,12848] [2021-08-27 16:38:12,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:38:12,506 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:38:12,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12 WrapperNode [2021-08-27 16:38:12,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:38:12,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:38:12,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:38:12,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:38:12,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12" (1/1) ... [2021-08-27 16:38:12,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12" (1/1) ... [2021-08-27 16:38:12,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:38:12,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:38:12,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:38:12,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:38:12,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12" (1/1) ... [2021-08-27 16:38:12,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12" (1/1) ... [2021-08-27 16:38:12,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12" (1/1) ... [2021-08-27 16:38:12,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12" (1/1) ... [2021-08-27 16:38:12,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12" (1/1) ... [2021-08-27 16:38:12,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12" (1/1) ... [2021-08-27 16:38:12,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12" (1/1) ... [2021-08-27 16:38:12,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:38:12,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:38:12,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:38:12,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:38:12,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12" (1/1) ... [2021-08-27 16:38:12,632 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:12,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:12,650 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) [2021-08-27 16:38:12,670 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 [2021-08-27 16:38:12,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:38:12,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:38:12,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:38:12,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:38:13,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:38:13,388 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-08-27 16:38:13,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:38:13 BoogieIcfgContainer [2021-08-27 16:38:13,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:38:13,391 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:38:13,391 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:38:13,393 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:38:13,394 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:38:13,394 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:38:12" (1/3) ... [2021-08-27 16:38:13,395 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f12a157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:38:13, skipping insertion in model container [2021-08-27 16:38:13,395 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:38:13,395 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:38:12" (2/3) ... [2021-08-27 16:38:13,395 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f12a157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:38:13, skipping insertion in model container [2021-08-27 16:38:13,395 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:38:13,395 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:38:13" (3/3) ... [2021-08-27 16:38:13,396 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2021-08-27 16:38:13,428 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:38:13,428 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:38:13,428 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:38:13,428 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:38:13,428 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:38:13,428 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:38:13,428 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:38:13,428 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:38:13,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.751937984496124) internal successors, (226), 129 states have internal predecessors, (226), 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) [2021-08-27 16:38:13,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2021-08-27 16:38:13,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:38:13,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:38:13,469 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:38:13,470 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:38:13,470 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:38:13,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.751937984496124) internal successors, (226), 129 states have internal predecessors, (226), 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) [2021-08-27 16:38:13,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2021-08-27 16:38:13,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:38:13,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:38:13,478 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:38:13,478 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:38:13,484 INFO L791 eck$LassoCheckResult]: Stem: 118#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 50#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 128#L229true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 104#L232-1true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 129#L242true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 36#L245-1true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 19#L255true assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 14#L258-1true init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 24#L268true assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 26#L271-1true init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 16#L281true assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 59#L284-1true init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 112#L294true assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 42#L297-1true init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 87#L307true assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 31#L307-1true init_#res := init_~tmp___5~0; 20#L416true main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 91#L510true assume !(0 == main_~i2~0); 8#L510-2true ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 102#L524-2true [2021-08-27 16:38:13,485 INFO L793 eck$LassoCheckResult]: Loop: 102#L524-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 71#L75true assume !(0 != ~mode1~0 % 256); 67#L100true assume !(~r1~0 < 2); 85#L100-1true ~mode1~0 := 1; 116#L75-2true havoc node2_#t~ite9, node2_#t~ite10; 100#L118true assume !(0 != ~mode2~0 % 256); 101#L143true assume !(~r2~0 < 2); 94#L143-1true ~mode2~0 := 1; 68#L118-2true havoc node3_#t~ite11, node3_#t~ite12; 15#L161true assume !(0 != ~mode3~0 % 256); 75#L186true assume !(~r3~0 < 2); 30#L186-1true ~mode3~0 := 1; 6#L161-2true ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 110#L424true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 124#L424-1true check_#res := check_~tmp~1; 45#L472true main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 132#L554true assume !(0 == assert_~arg % 256); 58#L549true main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 102#L524-2true [2021-08-27 16:38:13,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:38:13,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 1 times [2021-08-27 16:38:13,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:38:13,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68320813] [2021-08-27 16:38:13,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:38:13,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:38:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:38:13,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:38:13,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:38:13,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68320813] [2021-08-27 16:38:13,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68320813] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:38:13,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:38:13,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 16:38:13,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979559929] [2021-08-27 16:38:13,754 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 16:38:13,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:38:13,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1518597457, now seen corresponding path program 1 times [2021-08-27 16:38:13,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:38:13,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447842159] [2021-08-27 16:38:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:38:13,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:38:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:38:13,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:38:13,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:38:13,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447842159] [2021-08-27 16:38:13,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447842159] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:38:13,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:38:13,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 16:38:13,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362353529] [2021-08-27 16:38:13,856 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:38:13,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:38:13,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 16:38:13,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 16:38:13,869 INFO L87 Difference]: Start difference. First operand has 130 states, 129 states have (on average 1.751937984496124) internal successors, (226), 129 states have internal predecessors, (226), 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 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:38:13,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:38:13,949 INFO L93 Difference]: Finished difference Result 134 states and 226 transitions. [2021-08-27 16:38:13,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 16:38:13,951 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 226 transitions. [2021-08-27 16:38:13,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-08-27 16:38:13,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 125 states and 210 transitions. [2021-08-27 16:38:13,977 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2021-08-27 16:38:13,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2021-08-27 16:38:13,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 210 transitions. [2021-08-27 16:38:13,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:38:13,991 INFO L681 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2021-08-27 16:38:14,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 210 transitions. [2021-08-27 16:38:14,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-08-27 16:38:14,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.68) internal successors, (210), 124 states have internal predecessors, (210), 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) [2021-08-27 16:38:14,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 210 transitions. [2021-08-27 16:38:14,033 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2021-08-27 16:38:14,033 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2021-08-27 16:38:14,033 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:38:14,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 210 transitions. [2021-08-27 16:38:14,035 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-08-27 16:38:14,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:38:14,036 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:38:14,037 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:38:14,037 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:38:14,037 INFO L791 eck$LassoCheckResult]: Stem: 404#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 358#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 359#L229 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 385#L232-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 397#L242 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 339#L245-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 315#L255 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 305#L258-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 306#L268 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 326#L271-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 310#L281 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 311#L284-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 370#L294 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 347#L297-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 349#L307 assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 284#L307-1 init_#res := init_~tmp___5~0; 317#L416 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 318#L510 assume !(0 == main_~i2~0); 292#L510-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 293#L524-2 [2021-08-27 16:38:14,037 INFO L793 eck$LassoCheckResult]: Loop: 293#L524-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 380#L75 assume !(0 != ~mode1~0 % 256); 377#L100 assume !(~r1~0 < 2); 360#L100-1 ~mode1~0 := 1; 331#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 395#L118 assume !(0 != ~mode2~0 % 256); 396#L143 assume !(~r2~0 < 2); 356#L143-1 ~mode2~0 := 1; 379#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 307#L161 assume !(0 != ~mode3~0 % 256); 309#L186 assume !(~r3~0 < 2); 334#L186-1 ~mode3~0 := 1; 290#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 291#L424 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 400#L425 assume ~st1~0 + ~nl1~0 <= 1; 401#L426 assume ~st2~0 + ~nl2~0 <= 1; 393#L427 assume ~st3~0 + ~nl3~0 <= 1; 394#L428 assume ~r1~0 >= 2; 392#L432 assume ~r1~0 < 2; 287#L437 assume ~r1~0 >= 2; 289#L442 assume ~r1~0 < 2;check_~tmp~1 := 1; 335#L424-1 check_#res := check_~tmp~1; 354#L472 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 355#L554 assume !(0 == assert_~arg % 256); 369#L549 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 293#L524-2 [2021-08-27 16:38:14,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:38:14,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 2 times [2021-08-27 16:38:14,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:38:14,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625408899] [2021-08-27 16:38:14,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:38:14,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:38:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:38:14,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:38:14,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:38:14,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625408899] [2021-08-27 16:38:14,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625408899] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:38:14,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:38:14,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 16:38:14,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937490502] [2021-08-27 16:38:14,130 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 16:38:14,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:38:14,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1802356988, now seen corresponding path program 1 times [2021-08-27 16:38:14,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:38:14,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546350962] [2021-08-27 16:38:14,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:38:14,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:38:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:38:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:38:14,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:38:14,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546350962] [2021-08-27 16:38:14,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546350962] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:38:14,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:38:14,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:38:14,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048769344] [2021-08-27 16:38:14,191 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:38:14,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:38:14,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 16:38:14,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 16:38:14,192 INFO L87 Difference]: Start difference. First operand 125 states and 210 transitions. cyclomatic complexity: 86 Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-08-27 16:38:14,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:38:14,329 INFO L93 Difference]: Finished difference Result 196 states and 320 transitions. [2021-08-27 16:38:14,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 16:38:14,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 320 transitions. [2021-08-27 16:38:14,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-08-27 16:38:14,338 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 193 states and 291 transitions. [2021-08-27 16:38:14,338 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 193 [2021-08-27 16:38:14,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 193 [2021-08-27 16:38:14,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 193 states and 291 transitions. [2021-08-27 16:38:14,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:38:14,344 INFO L681 BuchiCegarLoop]: Abstraction has 193 states and 291 transitions. [2021-08-27 16:38:14,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states and 291 transitions. [2021-08-27 16:38:14,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 125. [2021-08-27 16:38:14,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.464) internal successors, (183), 124 states have internal predecessors, (183), 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) [2021-08-27 16:38:14,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2021-08-27 16:38:14,354 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2021-08-27 16:38:14,354 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2021-08-27 16:38:14,354 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 16:38:14,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 183 transitions. [2021-08-27 16:38:14,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-08-27 16:38:14,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:38:14,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:38:14,357 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:38:14,357 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:38:14,357 INFO L791 eck$LassoCheckResult]: Stem: 738#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 692#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 693#L229 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 719#L232-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 731#L242 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 673#L245-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 648#L255 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 638#L258-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 639#L268 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 659#L271-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 643#L281 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 644#L284-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 704#L294 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 681#L297-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 683#L307 assume ~id1~0 != ~id2~0; 636#L308 assume ~id1~0 != ~id3~0; 637#L309 assume ~id2~0 != ~id3~0; 723#L310 assume ~id1~0 >= 0; 705#L311 assume ~id2~0 >= 0; 706#L312 assume ~id3~0 >= 0; 665#L313 assume 0 == ~r1~0; 666#L314 assume 0 == ~r2~0; 697#L315 assume 0 == ~r3~0; 698#L316 assume 0 != init_~r122~0 % 256; 618#L317 assume 0 != init_~r132~0 % 256; 619#L318 assume 0 != init_~r212~0 % 256; 739#L319 assume 0 != init_~r232~0 % 256; 725#L320 assume 0 != init_~r312~0 % 256; 720#L321 assume 0 != init_~r322~0 % 256; 721#L322 assume ~max1~0 == ~id1~0; 616#L323 assume ~max2~0 == ~id2~0; 617#L324 assume ~max3~0 == ~id3~0; 646#L325 assume 0 == ~st1~0; 675#L326 assume 0 == ~st2~0; 657#L327 assume 0 == ~st3~0; 658#L328 assume 0 == ~nl1~0; 688#L329 assume 0 == ~nl2~0; 689#L330 assume 0 == ~nl3~0; 634#L331 assume 0 == ~mode1~0 % 256; 635#L332 assume 0 == ~mode2~0 % 256; 671#L333 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 668#L307-1 init_#res := init_~tmp___5~0; 650#L416 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 651#L510 assume !(0 == main_~i2~0); 625#L510-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 626#L524-2 [2021-08-27 16:38:14,357 INFO L793 eck$LassoCheckResult]: Loop: 626#L524-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 714#L75 assume !(0 != ~mode1~0 % 256); 711#L100 assume !(~r1~0 < 2); 694#L100-1 ~mode1~0 := 1; 664#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 729#L118 assume !(0 != ~mode2~0 % 256); 730#L143 assume !(~r2~0 < 2); 690#L143-1 ~mode2~0 := 1; 713#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 640#L161 assume !(0 != ~mode3~0 % 256); 642#L186 assume !(~r3~0 < 2); 667#L186-1 ~mode3~0 := 1; 620#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 621#L424 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 734#L425 assume ~st1~0 + ~nl1~0 <= 1; 735#L426 assume ~st2~0 + ~nl2~0 <= 1; 727#L427 assume ~st3~0 + ~nl3~0 <= 1; 728#L428 assume ~r1~0 >= 2; 726#L432 assume ~r1~0 < 2; 622#L437 assume ~r1~0 >= 2; 624#L442 assume ~r1~0 < 2;check_~tmp~1 := 1; 669#L424-1 check_#res := check_~tmp~1; 686#L472 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 687#L554 assume !(0 == assert_~arg % 256); 703#L549 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 626#L524-2 [2021-08-27 16:38:14,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:38:14,358 INFO L82 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 1 times [2021-08-27 16:38:14,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:38:14,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284005176] [2021-08-27 16:38:14,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:38:14,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:38:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:38:14,430 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:38:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:38:14,493 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:38:14,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:38:14,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1802356988, now seen corresponding path program 2 times [2021-08-27 16:38:14,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:38:14,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30355229] [2021-08-27 16:38:14,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:38:14,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:38:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:38:14,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:38:14,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:38:14,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30355229] [2021-08-27 16:38:14,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30355229] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:38:14,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:38:14,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:38:14,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111037926] [2021-08-27 16:38:14,519 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:38:14,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:38:14,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:38:14,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:38:14,520 INFO L87 Difference]: Start difference. First operand 125 states and 183 transitions. cyclomatic complexity: 59 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-08-27 16:38:14,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:38:14,553 INFO L93 Difference]: Finished difference Result 176 states and 259 transitions. [2021-08-27 16:38:14,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:38:14,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176 states and 259 transitions. [2021-08-27 16:38:14,556 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 119 [2021-08-27 16:38:14,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176 states to 176 states and 259 transitions. [2021-08-27 16:38:14,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 176 [2021-08-27 16:38:14,561 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 176 [2021-08-27 16:38:14,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 176 states and 259 transitions. [2021-08-27 16:38:14,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:38:14,565 INFO L681 BuchiCegarLoop]: Abstraction has 176 states and 259 transitions. [2021-08-27 16:38:14,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states and 259 transitions. [2021-08-27 16:38:14,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2021-08-27 16:38:14,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 176 states have (on average 1.4715909090909092) internal successors, (259), 175 states have internal predecessors, (259), 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) [2021-08-27 16:38:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 259 transitions. [2021-08-27 16:38:14,577 INFO L704 BuchiCegarLoop]: Abstraction has 176 states and 259 transitions. [2021-08-27 16:38:14,577 INFO L587 BuchiCegarLoop]: Abstraction has 176 states and 259 transitions. [2021-08-27 16:38:14,577 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 16:38:14,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 176 states and 259 transitions. [2021-08-27 16:38:14,579 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 119 [2021-08-27 16:38:14,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:38:14,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:38:14,580 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:38:14,580 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:38:14,580 INFO L791 eck$LassoCheckResult]: Stem: 1050#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 1000#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 1001#L229 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1029#L232-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 1043#L242 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 982#L245-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 957#L255 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 944#L258-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 945#L268 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 968#L271-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 949#L281 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 950#L284-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1014#L294 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 989#L297-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 991#L307 assume ~id1~0 != ~id2~0; 942#L308 assume ~id1~0 != ~id3~0; 943#L309 assume ~id2~0 != ~id3~0; 1033#L310 assume ~id1~0 >= 0; 1015#L311 assume ~id2~0 >= 0; 1016#L312 assume ~id3~0 >= 0; 974#L313 assume 0 == ~r1~0; 975#L314 assume 0 == ~r2~0; 1003#L315 assume 0 == ~r3~0; 1004#L316 assume 0 != init_~r122~0 % 256; 925#L317 assume 0 != init_~r132~0 % 256; 926#L318 assume 0 != init_~r212~0 % 256; 1053#L319 assume 0 != init_~r232~0 % 256; 1036#L320 assume 0 != init_~r312~0 % 256; 1030#L321 assume 0 != init_~r322~0 % 256; 1031#L322 assume ~max1~0 == ~id1~0; 923#L323 assume ~max2~0 == ~id2~0; 924#L324 assume ~max3~0 == ~id3~0; 952#L325 assume 0 == ~st1~0; 980#L326 assume 0 == ~st2~0; 964#L327 assume 0 == ~st3~0; 965#L328 assume 0 == ~nl1~0; 994#L329 assume 0 == ~nl2~0; 995#L330 assume 0 == ~nl3~0; 940#L331 assume 0 == ~mode1~0 % 256; 941#L332 assume 0 == ~mode2~0 % 256; 979#L333 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 977#L307-1 init_#res := init_~tmp___5~0; 955#L416 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 956#L510 assume !(0 == main_~i2~0); 931#L510-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 932#L524-2 [2021-08-27 16:38:14,581 INFO L793 eck$LassoCheckResult]: Loop: 932#L524-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 1058#L75 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256); 1025#L77 assume !(0 != ~ep21~0 % 256); 939#L77-1 assume !(0 != ~ep31~0 % 256); 1020#L84 assume !(1 == ~r1~0); 972#L91 ~mode1~0 := 0; 973#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 1093#L118 assume !(0 != ~mode2~0 % 256); 1089#L143 assume !(~r2~0 < 2); 1085#L143-1 ~mode2~0 := 1; 1083#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 1079#L161 assume !(0 != ~mode3~0 % 256); 1077#L186 assume !(~r3~0 < 2); 1071#L186-1 ~mode3~0 := 1; 1069#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 1068#L424 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 1067#L425 assume ~st1~0 + ~nl1~0 <= 1; 1066#L426 assume ~st2~0 + ~nl2~0 <= 1; 1065#L427 assume ~st3~0 + ~nl3~0 <= 1; 1064#L428 assume !(~r1~0 >= 2); 1054#L431 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 1055#L432 assume ~r1~0 < 2; 1063#L437 assume !(~r1~0 >= 2); 966#L441 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 967#L442 assume ~r1~0 < 2;check_~tmp~1 := 1; 1062#L424-1 check_#res := check_~tmp~1; 1061#L472 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1060#L554 assume !(0 == assert_~arg % 256); 1059#L549 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 932#L524-2 [2021-08-27 16:38:14,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:38:14,581 INFO L82 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 2 times [2021-08-27 16:38:14,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:38:14,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529615084] [2021-08-27 16:38:14,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:38:14,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:38:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:38:14,630 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:38:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:38:14,688 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:38:14,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:38:14,689 INFO L82 PathProgramCache]: Analyzing trace with hash 253975039, now seen corresponding path program 1 times [2021-08-27 16:38:14,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:38:14,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260646991] [2021-08-27 16:38:14,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:38:14,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:38:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:38:14,697 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:38:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:38:14,706 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:38:14,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:38:14,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1206422721, now seen corresponding path program 1 times [2021-08-27 16:38:14,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:38:14,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867286705] [2021-08-27 16:38:14,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:38:14,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:38:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:38:14,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:38:14,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:38:14,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867286705] [2021-08-27 16:38:14,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867286705] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:38:14,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:38:14,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:38:14,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955993092] [2021-08-27 16:38:15,661 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 16:38:15,662 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 16:38:15,662 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 16:38:15,667 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 16:38:15,668 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 16:38:15,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:15,668 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 16:38:15,668 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 16:38:15,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-08-27 16:38:15,670 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 16:38:15,670 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 16:38:15,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:15,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,346 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 16:38:16,347 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 16:38:16,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:16,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:16,352 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) [2021-08-27 16:38:16,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 16:38:16,362 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:38:16,385 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 [2021-08-27 16:38:16,423 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 [2021-08-27 16:38:16,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:16,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:16,425 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) [2021-08-27 16:38:16,427 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 [2021-08-27 16:38:16,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 16:38:16,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 16:38:16,541 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 16:38:16,545 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 [2021-08-27 16:38:16,545 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 16:38:16,545 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 16:38:16,545 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 16:38:16,545 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 16:38:16,545 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 16:38:16,545 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:16,545 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 16:38:16,545 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 16:38:16,545 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-08-27 16:38:16,545 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 16:38:16,545 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 16:38:16,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:16,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 16:38:17,184 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 16:38:17,188 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 16:38:17,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,191 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) [2021-08-27 16:38:17,192 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 [2021-08-27 16:38:17,193 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 [2021-08-27 16:38:17,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:38:17,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:38:17,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:38:17,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:38:17,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:38:17,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:38:17,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:38:17,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:38:17,245 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 [2021-08-27 16:38:17,246 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,251 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) [2021-08-27 16:38:17,252 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 [2021-08-27 16:38:17,253 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 [2021-08-27 16:38:17,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:38:17,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:38:17,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:38:17,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:38:17,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 16:38:17,264 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 16:38:17,280 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:38:17,307 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 [2021-08-27 16:38:17,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,309 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) [2021-08-27 16:38:17,310 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 [2021-08-27 16:38:17,311 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 [2021-08-27 16:38:17,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:38:17,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:38:17,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:38:17,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:38:17,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:38:17,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:38:17,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:38:17,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:38:17,338 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 [2021-08-27 16:38:17,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,339 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) [2021-08-27 16:38:17,340 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 [2021-08-27 16:38:17,341 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 [2021-08-27 16:38:17,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:38:17,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:38:17,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:38:17,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:38:17,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:38:17,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:38:17,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:38:17,356 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:38:17,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 16:38:17,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,375 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) [2021-08-27 16:38:17,375 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 [2021-08-27 16:38:17,376 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 [2021-08-27 16:38:17,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:38:17,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:38:17,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:38:17,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:38:17,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:38:17,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:38:17,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:38:17,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:38:17,401 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 [2021-08-27 16:38:17,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,402 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) [2021-08-27 16:38:17,402 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 [2021-08-27 16:38:17,404 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 [2021-08-27 16:38:17,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:38:17,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:38:17,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:38:17,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:38:17,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:38:17,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:38:17,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:38:17,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:38:17,433 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 [2021-08-27 16:38:17,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,435 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) [2021-08-27 16:38:17,435 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 [2021-08-27 16:38:17,436 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 [2021-08-27 16:38:17,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:38:17,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:38:17,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:38:17,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:38:17,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:38:17,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:38:17,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:38:17,468 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:38:17,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-27 16:38:17,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,489 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) [2021-08-27 16:38:17,489 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 [2021-08-27 16:38:17,490 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 [2021-08-27 16:38:17,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:38:17,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:38:17,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:38:17,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:38:17,499 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 16:38:17,499 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 16:38:17,511 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:38:17,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-27 16:38:17,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,533 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) [2021-08-27 16:38:17,534 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 [2021-08-27 16:38:17,535 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 [2021-08-27 16:38:17,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:38:17,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:38:17,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:38:17,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:38:17,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:38:17,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:38:17,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:38:17,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:38:17,566 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 [2021-08-27 16:38:17,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,567 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) [2021-08-27 16:38:17,567 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 [2021-08-27 16:38:17,568 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 [2021-08-27 16:38:17,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:38:17,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:38:17,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:38:17,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:38:17,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:38:17,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:38:17,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:38:17,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:38:17,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-27 16:38:17,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,593 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) [2021-08-27 16:38:17,594 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 [2021-08-27 16:38:17,595 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 [2021-08-27 16:38:17,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:38:17,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:38:17,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:38:17,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:38:17,602 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 16:38:17,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 16:38:17,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 16:38:17,619 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 [2021-08-27 16:38:17,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,620 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) [2021-08-27 16:38:17,623 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 [2021-08-27 16:38:17,624 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 [2021-08-27 16:38:17,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 16:38:17,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 16:38:17,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 16:38:17,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 16:38:17,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 16:38:17,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 16:38:17,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 16:38:17,644 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 16:38:17,665 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 16:38:17,665 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 16:38:17,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:38:17,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:38:17,667 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) [2021-08-27 16:38:17,668 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 [2021-08-27 16:38:17,669 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 16:38:17,669 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 16:38:17,669 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 16:38:17,669 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 11 Supporting invariants [] [2021-08-27 16:38:17,686 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 [2021-08-27 16:38:17,687 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 16:38:17,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:38:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:38:17,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 16:38:17,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 16:38:17,957 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 [2021-08-27 16:38:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:38:17,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 16:38:17,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 16:38:18,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:38:18,223 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 [2021-08-27 16:38:18,224 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 176 states and 259 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-08-27 16:38:18,262 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 176 states and 259 transitions. cyclomatic complexity: 84. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 294 states and 443 transitions. Complement of second has 4 states. [2021-08-27 16:38:18,262 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 [2021-08-27 16:38:18,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-08-27 16:38:18,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2021-08-27 16:38:18,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 45 letters. Loop has 29 letters. [2021-08-27 16:38:18,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 16:38:18,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 74 letters. Loop has 29 letters. [2021-08-27 16:38:18,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 16:38:18,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 45 letters. Loop has 58 letters. [2021-08-27 16:38:18,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 16:38:18,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 294 states and 443 transitions. [2021-08-27 16:38:18,270 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 16:38:18,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 294 states to 0 states and 0 transitions. [2021-08-27 16:38:18,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 16:38:18,270 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 16:38:18,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 16:38:18,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:38:18,271 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 16:38:18,271 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 16:38:18,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:38:18,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:38:18,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:38:18,272 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-08-27 16:38:18,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:38:18,272 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-27 16:38:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 16:38:18,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-27 16:38:18,273 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 16:38:18,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 16:38:18,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 16:38:18,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 16:38:18,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 16:38:18,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:38:18,273 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 16:38:18,273 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 16:38:18,273 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 16:38:18,274 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 16:38:18,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 16:38:18,274 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 16:38:18,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 16:38:18,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:38:18 BoogieIcfgContainer [2021-08-27 16:38:18,278 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:38:18,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:38:18,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:38:18,279 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:38:18,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:38:13" (3/4) ... [2021-08-27 16:38:18,282 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 16:38:18,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:38:18,283 INFO L168 Benchmark]: Toolchain (without parser) took 6132.09 ms. Allocated memory was 56.6 MB in the beginning and 151.0 MB in the end (delta: 94.4 MB). Free memory was 35.4 MB in the beginning and 54.9 MB in the end (delta: -19.6 MB). Peak memory consumption was 74.8 MB. Max. memory is 16.1 GB. [2021-08-27 16:38:18,283 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 38.9 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:38:18,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.96 ms. Allocated memory is still 56.6 MB. Free memory was 35.1 MB in the beginning and 36.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:38:18,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.89 ms. Allocated memory is still 56.6 MB. Free memory was 36.6 MB in the beginning and 33.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:38:18,284 INFO L168 Benchmark]: Boogie Preprocessor took 52.11 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 31.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:38:18,285 INFO L168 Benchmark]: RCFGBuilder took 766.13 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 31.5 MB in the beginning and 53.5 MB in the end (delta: -22.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:38:18,285 INFO L168 Benchmark]: BuchiAutomizer took 4887.90 ms. Allocated memory was 73.4 MB in the beginning and 151.0 MB in the end (delta: 77.6 MB). Free memory was 53.5 MB in the beginning and 54.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 76.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:38:18,285 INFO L168 Benchmark]: Witness Printer took 2.99 ms. Allocated memory is still 151.0 MB. Free memory is still 54.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:38:18,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 38.9 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 354.96 ms. Allocated memory is still 56.6 MB. Free memory was 35.1 MB in the beginning and 36.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.89 ms. Allocated memory is still 56.6 MB. Free memory was 36.6 MB in the beginning and 33.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.11 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 31.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 766.13 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 31.5 MB in the beginning and 53.5 MB in the end (delta: -22.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4887.90 ms. Allocated memory was 73.4 MB in the beginning and 151.0 MB in the end (delta: 77.6 MB). Free memory was 53.5 MB in the beginning and 54.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 76.3 MB. Max. memory is 16.1 GB. * Witness Printer took 2.99 ms. Allocated memory is still 151.0 MB. Free memory is still 54.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 11 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 38.4ms AutomataMinimizationTime, 3 MinimizatonAttempts, 68 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 176 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 788 SDtfs, 464 SDslu, 1507 SDs, 0 SdLazy, 55 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 102.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital161 mio100 ax122 hnf106 lsp19 ukn100 mio100 lsp100 div165 bol100 ite100 ukn100 eq155 hnf69 smp100 dnf106 smp93 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 16:38:18,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...