./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 f4b24e32 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-?-f4b24e3 [2022-07-14 15:39:03,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:39:03,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:39:03,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:39:03,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:39:03,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:39:03,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:39:03,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:39:03,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:39:03,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:39:03,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:39:03,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:39:03,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:39:03,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:39:03,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:39:03,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:39:03,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:39:03,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:39:03,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:39:03,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:39:03,271 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:39:03,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:39:03,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:39:03,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:39:03,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:39:03,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:39:03,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:39:03,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:39:03,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:39:03,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:39:03,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:39:03,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:39:03,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:39:03,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:39:03,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:39:03,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:39:03,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:39:03,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:39:03,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:39:03,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:39:03,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:39:03,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:39:03,288 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:39:03,309 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:39:03,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:39:03,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:39:03,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:39:03,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:39:03,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:39:03,313 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:39:03,313 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:39:03,313 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:39:03,314 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:39:03,314 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:39:03,314 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:39:03,314 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:39:03,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:39:03,315 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:39:03,315 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:39:03,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:39:03,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:39:03,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:39:03,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:39:03,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:39:03,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:39:03,316 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:39:03,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:39:03,316 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:39:03,316 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:39:03,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:39:03,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:39:03,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:39:03,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:39:03,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:39:03,318 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:39:03,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b [2022-07-14 15:39:03,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:39:03,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:39:03,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:39:03,559 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:39:03,567 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:39:03,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/terminator_02-1.c [2022-07-14 15:39:03,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c30bd9f6/711ba6fe30874336b44f240f4f62e784/FLAGcf02be314 [2022-07-14 15:39:03,931 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:39:03,932 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-1.c [2022-07-14 15:39:03,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c30bd9f6/711ba6fe30874336b44f240f4f62e784/FLAGcf02be314 [2022-07-14 15:39:03,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c30bd9f6/711ba6fe30874336b44f240f4f62e784 [2022-07-14 15:39:03,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:39:03,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:39:03,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:39:03,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:39:03,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:39:03,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:39:03" (1/1) ... [2022-07-14 15:39:03,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19175741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:03, skipping insertion in model container [2022-07-14 15:39:03,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:39:03" (1/1) ... [2022-07-14 15:39:03,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:39:03,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:39:04,065 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] [2022-07-14 15:39:04,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:39:04,097 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:39:04,106 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] [2022-07-14 15:39:04,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:39:04,125 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:39:04,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:04 WrapperNode [2022-07-14 15:39:04,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:39:04,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:39:04,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:39:04,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:39:04,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:04" (1/1) ... [2022-07-14 15:39:04,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:04" (1/1) ... [2022-07-14 15:39:04,162 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2022-07-14 15:39:04,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:39:04,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:39:04,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:39:04,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:39:04,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:04" (1/1) ... [2022-07-14 15:39:04,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:04" (1/1) ... [2022-07-14 15:39:04,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:04" (1/1) ... [2022-07-14 15:39:04,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:04" (1/1) ... [2022-07-14 15:39:04,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:04" (1/1) ... [2022-07-14 15:39:04,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:04" (1/1) ... [2022-07-14 15:39:04,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:04" (1/1) ... [2022-07-14 15:39:04,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:39:04,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:39:04,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:39:04,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:39:04,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:04" (1/1) ... [2022-07-14 15:39:04,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:04,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:04,242 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) [2022-07-14 15:39:04,256 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 [2022-07-14 15:39:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:39:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:39:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:39:04,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:39:04,325 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:39:04,326 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:39:04,430 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:39:04,433 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:39:04,436 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 15:39:04,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:39:04 BoogieIcfgContainer [2022-07-14 15:39:04,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:39:04,438 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:39:04,439 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:39:04,441 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:39:04,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:39:04,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:39:03" (1/3) ... [2022-07-14 15:39:04,442 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c523cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:39:04, skipping insertion in model container [2022-07-14 15:39:04,443 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:39:04,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:39:04" (2/3) ... [2022-07-14 15:39:04,443 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c523cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:39:04, skipping insertion in model container [2022-07-14 15:39:04,443 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:39:04,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:39:04" (3/3) ... [2022-07-14 15:39:04,444 INFO L354 chiAutomizerObserver]: Analyzing ICFG terminator_02-1.c [2022-07-14 15:39:04,491 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:39:04,492 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:39:04,492 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:39:04,492 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:39:04,492 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:39:04,492 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:39:04,492 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:39:04,493 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:39:04,497 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) [2022-07-14 15:39:04,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 15:39:04,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:39:04,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:39:04,514 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 15:39:04,514 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 15:39:04,515 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:39:04,515 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) [2022-07-14 15:39:04,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 15:39:04,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:39:04,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:39:04,517 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 15:39:04,517 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 15:39:04,522 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 [2022-07-14 15:39:04,522 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 [2022-07-14 15:39:04,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:04,531 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-14 15:39:04,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:39:04,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236741457] [2022-07-14 15:39:04,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:39:04,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:39:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:04,608 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:39:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:04,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:39:04,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:04,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-07-14 15:39:04,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:39:04,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778978213] [2022-07-14 15:39:04,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:39:04,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:39:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:04,655 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:39:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:04,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:39:04,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:04,667 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-07-14 15:39:04,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:39:04,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389245788] [2022-07-14 15:39:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:39:04,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:39:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:04,677 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:39:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:04,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:39:04,739 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 15:39:04,739 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 15:39:04,739 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 15:39:04,739 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 15:39:04,739 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 15:39:04,740 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:04,740 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 15:39:04,740 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 15:39:04,740 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2022-07-14 15:39:04,740 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 15:39:04,740 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 15:39:04,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:04,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:04,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:04,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:04,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:04,881 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 15:39:04,881 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 15:39:04,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:04,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:04,895 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) [2022-07-14 15:39:04,901 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 [2022-07-14 15:39:04,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 15:39:04,903 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:39:04,924 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 15:39:04,924 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: [] [2022-07-14 15:39:04,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-14 15:39:04,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:04,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:04,943 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) [2022-07-14 15:39:04,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 15:39:04,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:39:04,970 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 [2022-07-14 15:39:04,974 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 15:39:04,974 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: [] [2022-07-14 15:39:04,997 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 [2022-07-14 15:39:04,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:04,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:04,999 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) [2022-07-14 15:39:05,001 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 [2022-07-14 15:39:05,003 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 15:39:05,003 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:39:05,013 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 15:39:05,013 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: [] [2022-07-14 15:39:05,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-14 15:39:05,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:05,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:05,033 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) [2022-07-14 15:39:05,034 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 [2022-07-14 15:39:05,036 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 15:39:05,036 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:39:05,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-14 15:39:05,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:05,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:05,060 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) [2022-07-14 15:39:05,061 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 [2022-07-14 15:39:05,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 15:39:05,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:39:05,089 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 15:39:05,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-14 15:39:05,093 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 15:39:05,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 15:39:05,093 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 15:39:05,093 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 15:39:05,093 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 15:39:05,093 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:05,093 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 15:39:05,093 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 15:39:05,093 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2022-07-14 15:39:05,093 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 15:39:05,093 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 15:39:05,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:05,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:05,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:05,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:05,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:05,188 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 15:39:05,191 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 15:39:05,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:05,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:05,207 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) [2022-07-14 15:39:05,208 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 [2022-07-14 15:39:05,209 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 [2022-07-14 15:39:05,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:39:05,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:39:05,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:39:05,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:39:05,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:39:05,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:39:05,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:39:05,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:39:05,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-14 15:39:05,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:05,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:05,251 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) [2022-07-14 15:39:05,252 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 [2022-07-14 15:39:05,253 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 15:39:05,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:39:05,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:39:05,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:39:05,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:39:05,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:39:05,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:39:05,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:39:05,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:39:05,294 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 [2022-07-14 15:39:05,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:05,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:05,296 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) [2022-07-14 15:39:05,297 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 [2022-07-14 15:39:05,299 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 [2022-07-14 15:39:05,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:39:05,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:39:05,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:39:05,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:39:05,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:39:05,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:39:05,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:39:05,308 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 15:39:05,314 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 15:39:05,314 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-14 15:39:05,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:05,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:05,321 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) [2022-07-14 15:39:05,322 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 [2022-07-14 15:39:05,344 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 15:39:05,344 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 15:39:05,344 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 15:39:05,345 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 [] [2022-07-14 15:39:05,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-14 15:39:05,380 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 15:39:05,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:39:05,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 15:39:05,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:39:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:39:05,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 15:39:05,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:39:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:39:05,502 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 [2022-07-14 15:39:05,512 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) [2022-07-14 15:39:05,572 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. [2022-07-14 15:39:05,574 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 [2022-07-14 15:39:05,577 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) [2022-07-14 15:39:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2022-07-14 15:39:05,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-14 15:39:05,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:39:05,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-14 15:39:05,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:39:05,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-14 15:39:05,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:39:05,581 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2022-07-14 15:39:05,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 15:39:05,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 9 states and 12 transitions. [2022-07-14 15:39:05,587 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-14 15:39:05,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-14 15:39:05,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2022-07-14 15:39:05,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 15:39:05,588 INFO L369 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-07-14 15:39:05,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2022-07-14 15:39:05,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2022-07-14 15:39:05,601 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) [2022-07-14 15:39:05,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-07-14 15:39:05,602 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-14 15:39:05,602 INFO L374 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-14 15:39:05,603 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:39:05,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-07-14 15:39:05,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 15:39:05,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:39:05,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:39:05,604 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-14 15:39:05,604 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 15:39:05,604 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 [2022-07-14 15:39:05,604 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 [2022-07-14 15:39:05,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:05,605 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-14 15:39:05,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:39:05,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640025287] [2022-07-14 15:39:05,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:39:05,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:39:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:05,616 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:39:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:05,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:39:05,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:05,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-07-14 15:39:05,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:39:05,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326095161] [2022-07-14 15:39:05,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:39:05,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:39:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:05,624 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:39:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:05,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:39:05,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:05,627 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2022-07-14 15:39:05,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:39:05,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213907708] [2022-07-14 15:39:05,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:39:05,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:39:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:05,632 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:39:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:05,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:39:05,658 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 15:39:05,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 15:39:05,659 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 15:39:05,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 15:39:05,659 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 15:39:05,659 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:05,659 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 15:39:05,659 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 15:39:05,659 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2022-07-14 15:39:05,659 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 15:39:05,659 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 15:39:05,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:05,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:05,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:05,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:05,716 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 15:39:05,716 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 15:39:05,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:05,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:05,726 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) [2022-07-14 15:39:05,727 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 [2022-07-14 15:39:05,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 15:39:05,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:39:05,744 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 15:39:05,744 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: [] [2022-07-14 15:39:05,761 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 [2022-07-14 15:39:05,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:05,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:05,762 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) [2022-07-14 15:39:05,763 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 [2022-07-14 15:39:05,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 15:39:05,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:39:05,776 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 15:39:05,776 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: [] [2022-07-14 15:39:05,792 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 [2022-07-14 15:39:05,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:05,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:05,793 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) [2022-07-14 15:39:05,794 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 [2022-07-14 15:39:05,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 15:39:05,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:39:05,829 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 [2022-07-14 15:39:05,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:05,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:05,831 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) [2022-07-14 15:39:05,832 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 [2022-07-14 15:39:05,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 15:39:05,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:39:06,649 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 15:39:06,655 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 [2022-07-14 15:39:06,655 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 15:39:06,656 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 15:39:06,656 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 15:39:06,656 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 15:39:06,656 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 15:39:06,656 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:06,656 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 15:39:06,656 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 15:39:06,656 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2022-07-14 15:39:06,656 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 15:39:06,656 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 15:39:06,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:06,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:06,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:06,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:06,733 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 15:39:06,733 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 15:39:06,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:06,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:06,734 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) [2022-07-14 15:39:06,739 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 [2022-07-14 15:39:06,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:39:06,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:39:06,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:39:06,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:39:06,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:39:06,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:39:06,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:39:06,765 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:39:06,778 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 [2022-07-14 15:39:06,780 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 [2022-07-14 15:39:06,797 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 [2022-07-14 15:39:06,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:06,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:06,809 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) [2022-07-14 15:39:06,811 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 [2022-07-14 15:39:06,813 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 [2022-07-14 15:39:06,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:39:06,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:39:06,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:39:06,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:39:06,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:39:06,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:39:06,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:39:06,839 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:39:06,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-14 15:39:06,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:06,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:06,859 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) [2022-07-14 15:39:06,860 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 [2022-07-14 15:39:06,862 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 [2022-07-14 15:39:06,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:39:06,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:39:06,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:39:06,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:39:06,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:39:06,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:39:06,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:39:06,872 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 15:39:06,875 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 15:39:06,875 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 15:39:06,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:06,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:06,876 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) [2022-07-14 15:39:06,877 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 [2022-07-14 15:39:06,878 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 15:39:06,879 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 15:39:06,879 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 15:39:06,879 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 [] [2022-07-14 15:39:06,895 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 [2022-07-14 15:39:06,896 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 15:39:06,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:39:06,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 15:39:06,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:39:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:39:06,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 15:39:06,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:39:06,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:39:06,957 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 [2022-07-14 15:39:06,958 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) [2022-07-14 15:39:06,970 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. [2022-07-14 15:39:06,971 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 [2022-07-14 15:39:06,971 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) [2022-07-14 15:39:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-07-14 15:39:06,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-14 15:39:06,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:39:06,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-14 15:39:06,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:39:06,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-14 15:39:06,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:39:06,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2022-07-14 15:39:06,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 15:39:06,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2022-07-14 15:39:06,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-14 15:39:06,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-14 15:39:06,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-07-14 15:39:06,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 15:39:06,974 INFO L369 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-07-14 15:39:06,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-07-14 15:39:06,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2022-07-14 15:39:06,975 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) [2022-07-14 15:39:06,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2022-07-14 15:39:06,975 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-07-14 15:39:06,975 INFO L374 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-07-14 15:39:06,975 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 15:39:06,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2022-07-14 15:39:06,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 15:39:06,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:39:06,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:39:06,976 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2022-07-14 15:39:06,976 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 15:39:06,976 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 [2022-07-14 15:39:06,977 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 [2022-07-14 15:39:06,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:06,977 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2022-07-14 15:39:06,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:39:06,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108123536] [2022-07-14 15:39:06,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:39:06,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:39:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:06,984 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:39:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:06,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:39:06,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:06,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2022-07-14 15:39:06,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:39:06,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089588777] [2022-07-14 15:39:06,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:39:06,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:39:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:06,994 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:39:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:06,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:39:06,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:06,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 1 times [2022-07-14 15:39:06,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:39:06,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089854074] [2022-07-14 15:39:06,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:39:06,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:39:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:07,004 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:39:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:39:07,012 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:39:07,033 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 15:39:07,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 15:39:07,033 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 15:39:07,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 15:39:07,033 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 15:39:07,034 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:07,034 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 15:39:07,034 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 15:39:07,034 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2022-07-14 15:39:07,034 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 15:39:07,034 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 15:39:07,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:07,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:07,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:07,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:07,101 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 15:39:07,101 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 15:39:07,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:07,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:07,112 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) [2022-07-14 15:39:07,114 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 [2022-07-14 15:39:07,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 15:39:07,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:39:07,145 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 [2022-07-14 15:39:07,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:07,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:07,147 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) [2022-07-14 15:39:07,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 15:39:07,152 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:39:07,175 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 [2022-07-14 15:39:07,958 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 15:39:07,962 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 [2022-07-14 15:39:07,963 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 15:39:07,963 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 15:39:07,963 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 15:39:07,963 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 15:39:07,963 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 15:39:07,963 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:07,963 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 15:39:07,963 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 15:39:07,963 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2022-07-14 15:39:07,963 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 15:39:07,963 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 15:39:07,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:07,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:07,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:07,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:39:08,023 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 15:39:08,023 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 15:39:08,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:08,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:08,024 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) [2022-07-14 15:39:08,026 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 [2022-07-14 15:39:08,027 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 [2022-07-14 15:39:08,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:39:08,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:39:08,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:39:08,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:39:08,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:39:08,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:39:08,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:39:08,036 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 15:39:08,037 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 15:39:08,037 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 15:39:08,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:39:08,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:39:08,039 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) [2022-07-14 15:39:08,039 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 [2022-07-14 15:39:08,040 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 15:39:08,040 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 15:39:08,040 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 15:39:08,040 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 [] [2022-07-14 15:39:08,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-14 15:39:08,080 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 15:39:08,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:39:08,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 15:39:08,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:39:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:39:08,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 15:39:08,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:39:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:39:08,138 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 [2022-07-14 15:39:08,138 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) [2022-07-14 15:39:08,155 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. [2022-07-14 15:39:08,156 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 [2022-07-14 15:39:08,157 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) [2022-07-14 15:39:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-07-14 15:39:08,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-14 15:39:08,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:39:08,158 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 15:39:08,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:39:08,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 15:39:08,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:39:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:39:08,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 15:39:08,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:39:08,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:39:08,198 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 [2022-07-14 15:39:08,198 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) [2022-07-14 15:39:08,210 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. [2022-07-14 15:39:08,211 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 [2022-07-14 15:39:08,211 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) [2022-07-14 15:39:08,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-07-14 15:39:08,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-14 15:39:08,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:39:08,212 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 15:39:08,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:39:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:39:08,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 15:39:08,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:39:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:39:08,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 15:39:08,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:39:08,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:39:08,250 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 [2022-07-14 15:39:08,250 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) [2022-07-14 15:39:08,263 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. [2022-07-14 15:39:08,264 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 [2022-07-14 15:39:08,265 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) [2022-07-14 15:39:08,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2022-07-14 15:39:08,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-14 15:39:08,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:39:08,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2022-07-14 15:39:08,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:39:08,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2022-07-14 15:39:08,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:39:08,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2022-07-14 15:39:08,269 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-14 15:39:08,269 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2022-07-14 15:39:08,269 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-14 15:39:08,269 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-14 15:39:08,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-14 15:39:08,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:39:08,269 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 15:39:08,269 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 15:39:08,269 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 15:39:08,270 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-14 15:39:08,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-14 15:39:08,270 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-14 15:39:08,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-14 15:39:08,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:39:08 BoogieIcfgContainer [2022-07-14 15:39:08,279 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:39:08,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:39:08,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:39:08,279 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:39:08,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:39:04" (3/4) ... [2022-07-14 15:39:08,281 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-14 15:39:08,281 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:39:08,283 INFO L158 Benchmark]: Toolchain (without parser) took 4335.36ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 85.9MB in the beginning and 66.8MB in the end (delta: 19.2MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2022-07-14 15:39:08,283 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:39:08,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.49ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 85.9MB in the beginning and 112.8MB in the end (delta: -26.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 15:39:08,284 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.97ms. Allocated memory is still 138.4MB. Free memory was 112.8MB in the beginning and 111.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:39:08,287 INFO L158 Benchmark]: Boogie Preprocessor took 31.62ms. Allocated memory is still 138.4MB. Free memory was 111.3MB in the beginning and 110.3MB in the end (delta: 997.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:39:08,289 INFO L158 Benchmark]: RCFGBuilder took 227.77ms. Allocated memory is still 138.4MB. Free memory was 110.3MB in the beginning and 101.4MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-14 15:39:08,289 INFO L158 Benchmark]: BuchiAutomizer took 3840.43ms. Allocated memory is still 138.4MB. Free memory was 101.4MB in the beginning and 67.5MB in the end (delta: 34.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-07-14 15:39:08,291 INFO L158 Benchmark]: Witness Printer took 2.48ms. Allocated memory is still 138.4MB. Free memory was 67.5MB in the beginning and 66.8MB in the end (delta: 710.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:39:08,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.49ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 85.9MB in the beginning and 112.8MB in the end (delta: -26.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.97ms. Allocated memory is still 138.4MB. Free memory was 112.8MB in the beginning and 111.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.62ms. Allocated memory is still 138.4MB. Free memory was 111.3MB in the beginning and 110.3MB in the end (delta: 997.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 227.77ms. Allocated memory is still 138.4MB. Free memory was 110.3MB in the beginning and 101.4MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3840.43ms. Allocated memory is still 138.4MB. Free memory was 101.4MB in the beginning and 67.5MB in the end (delta: 34.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 2.48ms. Allocated memory is still 138.4MB. Free memory was 67.5MB in the beginning and 66.8MB in the end (delta: 710.6kB). 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 3.7s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. 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: 39ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-14 15:39:08,314 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 [2022-07-14 15:39:08,527 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 [2022-07-14 15:39:08,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE