./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/terminator_02-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/terminator_02-1.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 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:18:39,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:18:39,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:18:39,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:18:39,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:18:39,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:18:39,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:18:39,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:18:39,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:18:39,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:18:39,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:18:39,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:18:39,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:18:39,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:18:39,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:18:39,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:18:39,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:18:39,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:18:39,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:18:39,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:18:39,191 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:18:39,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:18:39,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:18:39,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:18:39,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:18:39,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:18:39,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:18:39,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:18:39,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:18:39,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:18:39,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:18:39,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:18:39,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:18:39,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:18:39,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:18:39,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:18:39,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:18:39,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:18:39,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:18:39,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:18:39,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:18:39,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:18:39,222 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:18:39,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:18:39,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:18:39,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:18:39,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:18:39,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:18:39,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:18:39,250 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:18:39,250 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:18:39,250 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:18:39,251 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:18:39,251 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:18:39,258 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:18:39,259 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:18:39,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:18:39,259 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:18:39,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:18:39,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:18:39,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:18:39,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:18:39,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:18:39,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:18:39,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:18:39,260 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:18:39,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:18:39,260 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:18:39,260 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:18:39,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:18:39,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:18:39,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:18:39,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:18:39,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:18:39,263 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:18:39,263 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b [2022-07-22 02:18:39,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:18:39,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:18:39,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:18:39,516 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:18:39,516 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:18:39,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/terminator_02-1.c [2022-07-22 02:18:39,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6972408eb/23239676bc3d4d5ca066a601c7b33cd7/FLAG2ab349c18 [2022-07-22 02:18:40,013 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:18:40,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-1.c [2022-07-22 02:18:40,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6972408eb/23239676bc3d4d5ca066a601c7b33cd7/FLAG2ab349c18 [2022-07-22 02:18:40,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6972408eb/23239676bc3d4d5ca066a601c7b33cd7 [2022-07-22 02:18:40,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:18:40,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:18:40,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:18:40,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:18:40,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:18:40,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:18:40" (1/1) ... [2022-07-22 02:18:40,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e16b1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40, skipping insertion in model container [2022-07-22 02:18:40,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:18:40" (1/1) ... [2022-07-22 02:18:40,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:18:40,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:18:40,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-1.c[327,340] [2022-07-22 02:18:40,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:18:40,649 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:18:40,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-1.c[327,340] [2022-07-22 02:18:40,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:18:40,674 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:18:40,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40 WrapperNode [2022-07-22 02:18:40,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:18:40,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:18:40,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:18:40,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:18:40,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40" (1/1) ... [2022-07-22 02:18:40,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40" (1/1) ... [2022-07-22 02:18:40,702 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2022-07-22 02:18:40,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:18:40,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:18:40,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:18:40,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:18:40,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40" (1/1) ... [2022-07-22 02:18:40,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40" (1/1) ... [2022-07-22 02:18:40,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40" (1/1) ... [2022-07-22 02:18:40,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40" (1/1) ... [2022-07-22 02:18:40,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40" (1/1) ... [2022-07-22 02:18:40,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40" (1/1) ... [2022-07-22 02:18:40,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40" (1/1) ... [2022-07-22 02:18:40,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:18:40,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:18:40,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:18:40,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:18:40,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40" (1/1) ... [2022-07-22 02:18:40,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:40,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:40,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:40,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 02:18:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:18:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:18:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:18:40,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:18:40,895 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:18:40,896 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:18:41,013 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:18:41,017 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:18:41,018 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 02:18:41,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:18:41 BoogieIcfgContainer [2022-07-22 02:18:41,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:18:41,021 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:18:41,021 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:18:41,023 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:18:41,023 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:18:41,023 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:18:40" (1/3) ... [2022-07-22 02:18:41,025 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45a239c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:18:41, skipping insertion in model container [2022-07-22 02:18:41,025 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:18:41,025 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:18:40" (2/3) ... [2022-07-22 02:18:41,025 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45a239c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:18:41, skipping insertion in model container [2022-07-22 02:18:41,025 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:18:41,025 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:18:41" (3/3) ... [2022-07-22 02:18:41,026 INFO L354 chiAutomizerObserver]: Analyzing ICFG terminator_02-1.c [2022-07-22 02:18:41,077 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:18:41,077 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:18:41,077 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:18:41,077 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:18:41,077 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:18:41,078 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:18:41,078 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:18:41,078 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:18:41,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:41,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 02:18:41,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:18:41,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:18:41,126 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 02:18:41,139 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 02:18:41,139 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:18:41,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:41,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 02:18:41,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:18:41,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:18:41,142 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 02:18:41,142 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 02:18:41,147 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~post8#1, main_#t~post9#1, main_#t~post10#1, main_~tmp~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 5#L23-2true [2022-07-22 02:18:41,148 INFO L754 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!(main_~x~0#1 < 100 && 100 < main_~z~0#1);main_~tmp~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 8#L23true assume !(0 != main_~tmp~0#1 % 256);main_#t~post9#1 := main_~x~0#1;main_~x~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1;main_#t~post10#1 := main_~z~0#1;main_~z~0#1 := main_#t~post10#1 - 1;havoc main_#t~post10#1; 5#L23-2true [2022-07-22 02:18:41,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:41,167 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 02:18:41,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:18:41,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993514098] [2022-07-22 02:18:41,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:18:41,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:18:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:41,240 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:18:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:41,272 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:18:41,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:41,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-07-22 02:18:41,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:18:41,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053720721] [2022-07-22 02:18:41,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:18:41,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:18:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:41,287 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:18:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:41,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:18:41,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:41,298 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-07-22 02:18:41,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:18:41,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675020536] [2022-07-22 02:18:41,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:18:41,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:18:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:41,310 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:18:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:41,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:18:41,413 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:18:41,414 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:18:41,414 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:18:41,415 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:18:41,415 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:18:41,415 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:41,415 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:18:41,415 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:18:41,416 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2022-07-22 02:18:41,416 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:18:41,416 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:18:41,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:41,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:41,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:41,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:41,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:41,585 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:18:41,586 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:18:41,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:41,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:41,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:41,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-22 02:18:41,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:18:41,597 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:18:41,609 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:18:41,609 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post9#1=0} Honda state: {ULTIMATE.start_main_#t~post9#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:18:41,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:41,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:41,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:41,632 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:41,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-22 02:18:41,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:18:41,636 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:18:41,656 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:18:41,657 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0#1=-256, ULTIMATE.start_main_#t~nondet7#1=-256} Honda state: {ULTIMATE.start_main_~tmp~0#1=-256, ULTIMATE.start_main_#t~nondet7#1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:18:41,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:41,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:41,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:41,683 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:41,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-22 02:18:41,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:18:41,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:18:41,695 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:18:41,695 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post10#1=0} Honda state: {ULTIMATE.start_main_#t~post10#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:18:41,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-07-22 02:18:41,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:41,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:41,721 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:41,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-22 02:18:41,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:18:41,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:18:41,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-07-22 02:18:41,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:41,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:41,752 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:41,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-22 02:18:41,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:18:41,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:18:41,798 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:18:41,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-07-22 02:18:41,802 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:18:41,803 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:18:41,803 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:18:41,803 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:18:41,803 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:18:41,803 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:41,803 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:18:41,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:18:41,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2022-07-22 02:18:41,803 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:18:41,803 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:18:41,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:41,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:41,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:41,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:41,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:41,911 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:18:41,915 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:18:41,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:41,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:41,918 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:41,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-22 02:18:41,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:18:41,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:18:41,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:18:41,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:18:41,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:18:41,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:18:41,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:18:41,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:18:41,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:18:41,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-22 02:18:41,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:41,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:41,972 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:41,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-22 02:18:41,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:18:41,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:18:41,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:18:41,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:18:41,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:18:41,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:18:41,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:18:41,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:18:41,989 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:18:42,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:42,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:42,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:42,017 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:42,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-22 02:18:42,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:18:42,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:18:42,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:18:42,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:18:42,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:18:42,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:18:42,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:18:42,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:18:42,040 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:18:42,046 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 02:18:42,046 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 02:18:42,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:42,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:42,049 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:42,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-22 02:18:42,083 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:18:42,084 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:18:42,084 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:18:42,084 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2022-07-22 02:18:42,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:42,109 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:18:42,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:18:42,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:18:42,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:18:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:18:42,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:18:42,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:18:42,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:18:42,241 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 02:18:42,242 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:42,298 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 44 states and 54 transitions. Complement of second has 7 states. [2022-07-22 02:18:42,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-22 02:18:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:42,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2022-07-22 02:18:42,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-22 02:18:42,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:18:42,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-22 02:18:42,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:18:42,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-22 02:18:42,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:18:42,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2022-07-22 02:18:42,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 02:18:42,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 9 states and 12 transitions. [2022-07-22 02:18:42,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-22 02:18:42,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-22 02:18:42,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2022-07-22 02:18:42,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:18:42,317 INFO L369 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-07-22 02:18:42,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2022-07-22 02:18:42,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2022-07-22 02:18:42,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:42,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-07-22 02:18:42,351 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-22 02:18:42,352 INFO L374 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-22 02:18:42,352 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 02:18:42,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-07-22 02:18:42,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 02:18:42,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:18:42,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:18:42,353 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 02:18:42,353 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 02:18:42,354 INFO L752 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 95#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~post8#1, main_#t~post9#1, main_#t~post10#1, main_~tmp~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 101#L23-2 assume !!(main_~x~0#1 < 100 && 100 < main_~z~0#1);main_~tmp~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 97#L23 [2022-07-22 02:18:42,354 INFO L754 eck$LassoCheckResult]: Loop: 97#L23 assume 0 != main_~tmp~0#1 % 256;main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 96#L23-2 assume !!(main_~x~0#1 < 100 && 100 < main_~z~0#1);main_~tmp~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 97#L23 [2022-07-22 02:18:42,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:42,359 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-22 02:18:42,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:18:42,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330449801] [2022-07-22 02:18:42,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:18:42,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:18:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:42,367 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:18:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:42,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:18:42,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:42,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-07-22 02:18:42,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:18:42,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026176434] [2022-07-22 02:18:42,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:18:42,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:18:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:42,388 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:18:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:42,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:18:42,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:42,394 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2022-07-22 02:18:42,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:18:42,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895659591] [2022-07-22 02:18:42,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:18:42,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:18:42,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:42,404 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:18:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:42,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:18:42,439 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:18:42,440 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:18:42,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:18:42,440 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:18:42,440 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:18:42,440 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:42,440 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:18:42,440 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:18:42,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2022-07-22 02:18:42,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:18:42,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:18:42,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:42,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:42,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:42,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:42,512 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:18:42,513 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:18:42,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:42,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:42,528 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:42,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-22 02:18:42,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:18:42,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:18:42,594 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:18:42,594 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0#1=128, ULTIMATE.start_main_#t~nondet7#1=128} Honda state: {ULTIMATE.start_main_~tmp~0#1=128, ULTIMATE.start_main_#t~nondet7#1=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:18:42,620 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 [2022-07-22 02:18:42,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:42,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:42,622 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:42,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-22 02:18:42,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:18:42,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:18:42,659 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:18:42,660 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=101} Honda state: {ULTIMATE.start_main_~z~0#1=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:18:42,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:42,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:42,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:42,686 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:42,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-22 02:18:42,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:18:42,689 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:18:42,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:42,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:42,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:42,739 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:42,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-22 02:18:42,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:18:42,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:18:43,587 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:18:43,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:43,592 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:18:43,592 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:18:43,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:18:43,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:18:43,592 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:18:43,593 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:43,593 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:18:43,593 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:18:43,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2022-07-22 02:18:43,593 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:18:43,593 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:18:43,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:43,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:43,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:43,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:43,677 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:18:43,677 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:18:43,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:43,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:43,692 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:43,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-22 02:18:43,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:18:43,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:18:43,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:18:43,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:18:43,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:18:43,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:18:43,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:18:43,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:18:43,709 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:18:43,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:43,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:43,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:43,734 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:43,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-22 02:18:43,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:18:43,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:18:43,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:18:43,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:18:43,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:18:43,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:18:43,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:18:43,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:18:43,750 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:18:43,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-07-22 02:18:43,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:43,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:43,771 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:43,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-22 02:18:43,774 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:18:43,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:18:43,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:18:43,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:18:43,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:18:43,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:18:43,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:18:43,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:18:43,811 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:18:43,814 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 02:18:43,814 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 02:18:43,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:43,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:43,816 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:43,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-22 02:18:43,818 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:18:43,818 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:18:43,818 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:18:43,818 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 197 Supporting invariants [] [2022-07-22 02:18:43,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:43,852 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:18:43,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:18:43,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:18:43,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:18:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:18:43,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:18:43,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:18:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:18:43,924 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 02:18:43,924 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:43,946 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 20 transitions. Complement of second has 5 states. [2022-07-22 02:18:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 02:18:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:43,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-07-22 02:18:43,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-22 02:18:43,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:18:43,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-22 02:18:43,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:18:43,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-22 02:18:43,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:18:43,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2022-07-22 02:18:43,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 02:18:43,952 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2022-07-22 02:18:43,952 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-22 02:18:43,952 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-22 02:18:43,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-07-22 02:18:43,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:18:43,952 INFO L369 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-07-22 02:18:43,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-07-22 02:18:43,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2022-07-22 02:18:43,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2022-07-22 02:18:43,955 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-07-22 02:18:43,956 INFO L374 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-07-22 02:18:43,956 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 02:18:43,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2022-07-22 02:18:43,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 02:18:43,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:18:43,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:18:43,957 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2022-07-22 02:18:43,957 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 02:18:43,957 INFO L752 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 154#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~post8#1, main_#t~post9#1, main_#t~post10#1, main_~tmp~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 155#L23-2 assume !!(main_~x~0#1 < 100 && 100 < main_~z~0#1);main_~tmp~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 156#L23 assume !(0 != main_~tmp~0#1 % 256);main_#t~post9#1 := main_~x~0#1;main_~x~0#1 := main_#t~post9#1 - 1;havoc main_#t~post9#1;main_#t~post10#1 := main_~z~0#1;main_~z~0#1 := main_#t~post10#1 - 1;havoc main_#t~post10#1; 160#L23-2 assume !!(main_~x~0#1 < 100 && 100 < main_~z~0#1);main_~tmp~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 158#L23 [2022-07-22 02:18:43,957 INFO L754 eck$LassoCheckResult]: Loop: 158#L23 assume 0 != main_~tmp~0#1 % 256;main_#t~post8#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 159#L23-2 assume !!(main_~x~0#1 < 100 && 100 < main_~z~0#1);main_~tmp~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 158#L23 [2022-07-22 02:18:43,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:43,958 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2022-07-22 02:18:43,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:18:43,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742752888] [2022-07-22 02:18:43,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:18:43,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:18:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:43,990 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:18:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:44,000 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:18:44,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:44,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2022-07-22 02:18:44,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:18:44,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466035626] [2022-07-22 02:18:44,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:18:44,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:18:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:44,009 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:18:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:44,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:18:44,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:44,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 1 times [2022-07-22 02:18:44,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:18:44,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825601404] [2022-07-22 02:18:44,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:18:44,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:18:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:44,024 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:18:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:18:44,043 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:18:44,067 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:18:44,067 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:18:44,067 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:18:44,067 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:18:44,067 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:18:44,067 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:44,067 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:18:44,067 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:18:44,068 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2022-07-22 02:18:44,068 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:18:44,068 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:18:44,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:44,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:44,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:44,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:44,153 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:18:44,153 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:18:44,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:44,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:44,169 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:44,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:18:44,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:18:44,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-22 02:18:44,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:44,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:44,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:44,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:44,280 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:44,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-22 02:18:44,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:18:44,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:18:45,096 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:18:45,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:45,102 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:18:45,102 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:18:45,102 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:18:45,104 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:18:45,105 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:18:45,105 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:45,105 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:18:45,105 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:18:45,105 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2022-07-22 02:18:45,105 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:18:45,105 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:18:45,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:45,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:45,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:45,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:18:45,166 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:18:45,166 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:18:45,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:45,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:45,183 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:45,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-22 02:18:45,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:18:45,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:18:45,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:18:45,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:18:45,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:18:45,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:18:45,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:18:45,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:18:45,253 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:18:45,255 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 02:18:45,255 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 02:18:45,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:18:45,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:18:45,257 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:18:45,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-22 02:18:45,260 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:18:45,260 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:18:45,260 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:18:45,261 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 197 Supporting invariants [] [2022-07-22 02:18:45,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-07-22 02:18:45,280 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:18:45,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:18:45,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:18:45,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:18:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:18:45,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:18:45,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:18:45,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:18:45,324 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 02:18:45,324 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:45,335 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 5 states. [2022-07-22 02:18:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 02:18:45,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:45,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-07-22 02:18:45,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-22 02:18:45,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:18:45,337 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 02:18:45,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:18:45,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:18:45,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:18:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:18:45,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:18:45,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:18:45,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:18:45,369 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 02:18:45,369 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:45,379 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 5 states. [2022-07-22 02:18:45,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 02:18:45,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:45,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-07-22 02:18:45,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-22 02:18:45,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:18:45,381 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 02:18:45,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:18:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:18:45,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:18:45,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:18:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:18:45,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:18:45,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:18:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:18:45,413 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 02:18:45,414 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:45,425 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 4 states. [2022-07-22 02:18:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 02:18:45,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:18:45,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2022-07-22 02:18:45,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-22 02:18:45,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:18:45,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2022-07-22 02:18:45,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:18:45,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2022-07-22 02:18:45,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:18:45,428 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2022-07-22 02:18:45,428 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:18:45,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2022-07-22 02:18:45,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 02:18:45,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 02:18:45,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 02:18:45,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:18:45,429 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:18:45,429 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:18:45,429 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:18:45,429 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 02:18:45,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 02:18:45,429 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:18:45,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 02:18:45,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:18:45 BoogieIcfgContainer [2022-07-22 02:18:45,434 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:18:45,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:18:45,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:18:45,435 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:18:45,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:18:41" (3/4) ... [2022-07-22 02:18:45,437 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 02:18:45,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:18:45,437 INFO L158 Benchmark]: Toolchain (without parser) took 4982.11ms. Allocated memory was 54.5MB in the beginning and 81.8MB in the end (delta: 27.3MB). Free memory was 28.8MB in the beginning and 40.4MB in the end (delta: -11.7MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2022-07-22 02:18:45,438 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 44.0MB. Free memory was 26.7MB in the beginning and 26.6MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:18:45,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.76ms. Allocated memory is still 54.5MB. Free memory was 39.8MB in the beginning and 30.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 02:18:45,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.36ms. Allocated memory is still 54.5MB. Free memory was 30.2MB in the beginning and 38.1MB in the end (delta: -7.9MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2022-07-22 02:18:45,439 INFO L158 Benchmark]: Boogie Preprocessor took 41.16ms. Allocated memory is still 54.5MB. Free memory was 38.1MB in the beginning and 37.1MB in the end (delta: 940.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:18:45,439 INFO L158 Benchmark]: RCFGBuilder took 273.65ms. Allocated memory is still 54.5MB. Free memory was 37.1MB in the beginning and 28.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 02:18:45,439 INFO L158 Benchmark]: BuchiAutomizer took 4413.45ms. Allocated memory was 54.5MB in the beginning and 81.8MB in the end (delta: 27.3MB). Free memory was 28.4MB in the beginning and 40.9MB in the end (delta: -12.4MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-07-22 02:18:45,440 INFO L158 Benchmark]: Witness Printer took 2.33ms. Allocated memory is still 81.8MB. Free memory was 40.9MB in the beginning and 40.4MB in the end (delta: 449.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:18:45,441 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 44.0MB. Free memory was 26.7MB in the beginning and 26.6MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.76ms. Allocated memory is still 54.5MB. Free memory was 39.8MB in the beginning and 30.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.36ms. Allocated memory is still 54.5MB. Free memory was 30.2MB in the beginning and 38.1MB in the end (delta: -7.9MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.16ms. Allocated memory is still 54.5MB. Free memory was 38.1MB in the beginning and 37.1MB in the end (delta: 940.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 273.65ms. Allocated memory is still 54.5MB. Free memory was 37.1MB in the beginning and 28.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4413.45ms. Allocated memory was 54.5MB in the beginning and 81.8MB in the end (delta: 27.3MB). Free memory was 28.4MB in the beginning and 40.9MB in the end (delta: -12.4MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 2.33ms. Allocated memory is still 81.8MB. Free memory was 40.9MB in the beginning and 40.4MB in the end (delta: 449.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function z and consists of 5 locations. One deterministic module has affine ranking function 197 + -2 * x and consists of 3 locations. One nondeterministic module has affine ranking function 197 + -2 * x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 29 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp46 ukn100 mio100 lsp100 div447 bol100 ite100 ukn100 eq150 hnf95 smp41 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 02:18:45,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-22 02:18:45,685 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE