./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i -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 2b1ee78e0ef345a64f8c7caca77413516ce68186d78e333a5564d6417b0fa920 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 16:04:32,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 16:04:32,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 16:04:32,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 16:04:32,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 16:04:32,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 16:04:32,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 16:04:32,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 16:04:32,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 16:04:32,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 16:04:32,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 16:04:32,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 16:04:32,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 16:04:32,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 16:04:32,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 16:04:32,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 16:04:32,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 16:04:32,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 16:04:32,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 16:04:32,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 16:04:32,379 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 16:04:32,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 16:04:32,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 16:04:32,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 16:04:32,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 16:04:32,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 16:04:32,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 16:04:32,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 16:04:32,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 16:04:32,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 16:04:32,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 16:04:32,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 16:04:32,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 16:04:32,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 16:04:32,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 16:04:32,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 16:04:32,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 16:04:32,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 16:04:32,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 16:04:32,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 16:04:32,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 16:04:32,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 16:04:32,395 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 16:04:32,421 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 16:04:32,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 16:04:32,424 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 16:04:32,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 16:04:32,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 16:04:32,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 16:04:32,426 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 16:04:32,426 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 16:04:32,426 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 16:04:32,427 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 16:04:32,427 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 16:04:32,427 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 16:04:32,428 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 16:04:32,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 16:04:32,428 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 16:04:32,428 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 16:04:32,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 16:04:32,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 16:04:32,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 16:04:32,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 16:04:32,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 16:04:32,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 16:04:32,430 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 16:04:32,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 16:04:32,431 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 16:04:32,431 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 16:04:32,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 16:04:32,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 16:04:32,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 16:04:32,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 16:04:32,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 16:04:32,433 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 16:04:32,433 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b1ee78e0ef345a64f8c7caca77413516ce68186d78e333a5564d6417b0fa920 [2022-07-23 16:04:32,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 16:04:32,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 16:04:32,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 16:04:32,761 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 16:04:32,762 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 16:04:32,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i [2022-07-23 16:04:32,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d9ef46dc/3423d3bd811e49d693e4018506458ad1/FLAGe80f55f34 [2022-07-23 16:04:33,213 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 16:04:33,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i [2022-07-23 16:04:33,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d9ef46dc/3423d3bd811e49d693e4018506458ad1/FLAGe80f55f34 [2022-07-23 16:04:33,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d9ef46dc/3423d3bd811e49d693e4018506458ad1 [2022-07-23 16:04:33,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 16:04:33,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 16:04:33,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 16:04:33,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 16:04:33,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 16:04:33,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 04:04:33" (1/1) ... [2022-07-23 16:04:33,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4783a8dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33, skipping insertion in model container [2022-07-23 16:04:33,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 04:04:33" (1/1) ... [2022-07-23 16:04:33,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 16:04:33,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 16:04:33,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 16:04:33,921 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 16:04:33,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 16:04:33,978 INFO L208 MainTranslator]: Completed translation [2022-07-23 16:04:33,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33 WrapperNode [2022-07-23 16:04:33,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 16:04:33,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 16:04:33,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 16:04:33,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 16:04:33,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33" (1/1) ... [2022-07-23 16:04:34,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33" (1/1) ... [2022-07-23 16:04:34,017 INFO L137 Inliner]: procedures = 117, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2022-07-23 16:04:34,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 16:04:34,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 16:04:34,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 16:04:34,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 16:04:34,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33" (1/1) ... [2022-07-23 16:04:34,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33" (1/1) ... [2022-07-23 16:04:34,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33" (1/1) ... [2022-07-23 16:04:34,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33" (1/1) ... [2022-07-23 16:04:34,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33" (1/1) ... [2022-07-23 16:04:34,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33" (1/1) ... [2022-07-23 16:04:34,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33" (1/1) ... [2022-07-23 16:04:34,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 16:04:34,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 16:04:34,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 16:04:34,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 16:04:34,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33" (1/1) ... [2022-07-23 16:04:34,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:34,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:34,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:34,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-23 16:04:34,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 16:04:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 16:04:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 16:04:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 16:04:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 16:04:34,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 16:04:34,324 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 16:04:34,325 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 16:04:34,450 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 16:04:34,454 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 16:04:34,454 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 16:04:34,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:04:34 BoogieIcfgContainer [2022-07-23 16:04:34,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 16:04:34,456 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 16:04:34,456 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 16:04:34,458 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 16:04:34,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 16:04:34,459 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 04:04:33" (1/3) ... [2022-07-23 16:04:34,460 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55c6e6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 04:04:34, skipping insertion in model container [2022-07-23 16:04:34,460 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 16:04:34,460 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:04:33" (2/3) ... [2022-07-23 16:04:34,461 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55c6e6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 04:04:34, skipping insertion in model container [2022-07-23 16:04:34,461 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 16:04:34,461 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:04:34" (3/3) ... [2022-07-23 16:04:34,462 INFO L354 chiAutomizerObserver]: Analyzing ICFG cstrlen-alloca-2.i [2022-07-23 16:04:34,499 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 16:04:34,499 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 16:04:34,499 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 16:04:34,499 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 16:04:34,500 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 16:04:34,500 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 16:04:34,500 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 16:04:34,500 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 16:04:34,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 16:04:34,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-07-23 16:04:34,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 16:04:34,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 16:04:34,520 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-23 16:04:34,520 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 16:04:34,521 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 16:04:34,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 16:04:34,523 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-07-23 16:04:34,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 16:04:34,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 16:04:34,524 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-23 16:04:34,524 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 16:04:34,529 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; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet7#1, main_#t~post6#1, main_~i~0#1, main_#t~ret8#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 14#L522true assume !(main_~length1~0#1 < 1); 11#L522-2true call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;main_~i~0#1 := 0; 9#L527-3true [2022-07-23 16:04:34,529 INFO L754 eck$LassoCheckResult]: Loop: 9#L527-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet7#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet7#1; 12#L527-2true main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 9#L527-3true [2022-07-23 16:04:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:04:34,534 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2022-07-23 16:04:34,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:04:34,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891673995] [2022-07-23 16:04:34,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:04:34,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:04:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:34,626 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:04:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:34,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:04:34,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:04:34,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2022-07-23 16:04:34,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:04:34,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248026980] [2022-07-23 16:04:34,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:04:34,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:04:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:34,656 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:04:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:34,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:04:34,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:04:34,662 INFO L85 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2022-07-23 16:04:34,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:04:34,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946450931] [2022-07-23 16:04:34,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:04:34,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:04:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:34,676 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:04:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:34,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:04:34,839 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 16:04:34,840 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 16:04:34,840 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 16:04:34,840 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 16:04:34,840 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 16:04:34,840 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:34,840 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 16:04:34,841 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 16:04:34,841 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-2.i_Iteration1_Lasso [2022-07-23 16:04:34,841 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 16:04:34,841 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 16:04:34,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:34,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:34,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:34,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:34,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:34,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:34,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:34,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:34,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:34,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:35,115 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 16:04:35,118 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 16:04:35,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:35,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:35,160 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:35,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-23 16:04:35,162 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:35,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:35,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:04:35,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:35,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:35,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:35,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:04:35,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:04:35,176 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:35,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:35,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:35,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:35,194 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:35,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-23 16:04:35,196 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:35,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:35,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:35,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:35,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:35,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:04:35,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:04:35,226 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 16:04:35,257 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2022-07-23 16:04:35,257 INFO L444 ModelExtractionUtils]: 10 out of 22 variables were initially zero. Simplification set additionally 8 variables to zero. [2022-07-23 16:04:35,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:35,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:35,272 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:35,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-23 16:04:35,294 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 16:04:35,323 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-23 16:04:35,324 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 16:04:35,324 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc5#1.base)_1, ULTIMATE.start_main_~nondetString1~0#1.offset, ULTIMATE.start_main_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc5#1.base)_1 - 1*ULTIMATE.start_main_~nondetString1~0#1.offset - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-23 16:04:35,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-23 16:04:35,354 INFO L293 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2022-07-23 16:04:35,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:04:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 16:04:35,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 16:04:35,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 16:04:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 16:04:35,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 16:04:35,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 16:04:35,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 16:04:35,463 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 [2022-07-23 16:04:35,464 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-07-23 16:04:35,507 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 29 states and 39 transitions. Complement of second has 8 states. [2022-07-23 16:04:35,508 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 [2022-07-23 16:04:35,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-07-23 16:04:35,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2022-07-23 16:04:35,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-23 16:04:35,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 16:04:35,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-23 16:04:35,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 16:04:35,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 4 letters. Loop has 4 letters. [2022-07-23 16:04:35,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 16:04:35,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 39 transitions. [2022-07-23 16:04:35,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 16:04:35,519 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 10 states and 13 transitions. [2022-07-23 16:04:35,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-07-23 16:04:35,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-23 16:04:35,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-07-23 16:04:35,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 16:04:35,521 INFO L369 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-07-23 16:04:35,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-07-23 16:04:35,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-07-23 16:04:35,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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) [2022-07-23 16:04:35,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2022-07-23 16:04:35,537 INFO L392 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-07-23 16:04:35,537 INFO L374 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-07-23 16:04:35,537 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 16:04:35,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2022-07-23 16:04:35,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 16:04:35,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 16:04:35,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 16:04:35,538 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-23 16:04:35,539 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 16:04:35,539 INFO L752 eck$LassoCheckResult]: Stem: 108#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 109#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet7#1, main_#t~post6#1, main_~i~0#1, main_#t~ret8#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 115#L522 assume !(main_~length1~0#1 < 1); 110#L522-2 call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;main_~i~0#1 := 0; 111#L527-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 114#L527-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrlen } true;cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrlen_#res#1;havoc cstrlen_#t~post3#1.base, cstrlen_#t~post3#1.offset, cstrlen_#t~mem2#1, cstrlen_~s#1.base, cstrlen_~s#1.offset, cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~s#1.base, cstrlen_~s#1.offset := cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_~s#1.base, cstrlen_~s#1.offset; 107#L516-3 [2022-07-23 16:04:35,539 INFO L754 eck$LassoCheckResult]: Loop: 107#L516-3 call cstrlen_#t~mem2#1 := read~int(cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset, 1); 106#L516-1 assume !!(0 != cstrlen_#t~mem2#1);havoc cstrlen_#t~mem2#1;cstrlen_#t~post3#1.base, cstrlen_#t~post3#1.offset := cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_#t~post3#1.base, 1 + cstrlen_#t~post3#1.offset;havoc cstrlen_#t~post3#1.base, cstrlen_#t~post3#1.offset; 107#L516-3 [2022-07-23 16:04:35,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:04:35,540 INFO L85 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2022-07-23 16:04:35,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:04:35,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952259259] [2022-07-23 16:04:35,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:04:35,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:04:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:35,550 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:04:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:35,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:04:35,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:04:35,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1862, now seen corresponding path program 1 times [2022-07-23 16:04:35,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:04:35,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114035016] [2022-07-23 16:04:35,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:04:35,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:04:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:35,564 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:04:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:35,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:04:35,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:04:35,568 INFO L85 PathProgramCache]: Analyzing trace with hash 176738514, now seen corresponding path program 1 times [2022-07-23 16:04:35,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:04:35,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492775646] [2022-07-23 16:04:35,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:04:35,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:04:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 16:04:35,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 16:04:35,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 16:04:35,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492775646] [2022-07-23 16:04:35,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492775646] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 16:04:35,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 16:04:35,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 16:04:35,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515115202] [2022-07-23 16:04:35,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 16:04:35,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 16:04:35,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 16:04:35,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 16:04:35,723 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 16:04:35,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 16:04:35,794 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2022-07-23 16:04:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 16:04:35,795 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2022-07-23 16:04:35,798 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 16:04:35,799 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 11 states and 13 transitions. [2022-07-23 16:04:35,799 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-07-23 16:04:35,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-23 16:04:35,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2022-07-23 16:04:35,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 16:04:35,800 INFO L369 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-07-23 16:04:35,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2022-07-23 16:04:35,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-07-23 16:04:35,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 16:04:35,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-07-23 16:04:35,802 INFO L392 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-07-23 16:04:35,802 INFO L374 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-07-23 16:04:35,802 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 16:04:35,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2022-07-23 16:04:35,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:35,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 16:04:35,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 16:04:35,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 16:04:35,807 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 16:04:35,807 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 16:04:35,808 INFO L752 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 151#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet7#1, main_#t~post6#1, main_~i~0#1, main_#t~ret8#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 157#L522 assume !(main_~length1~0#1 < 1); 152#L522-2 call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;main_~i~0#1 := 0; 153#L527-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet7#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet7#1; 154#L527-2 main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 155#L527-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 156#L527-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrlen } true;cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrlen_#res#1;havoc cstrlen_#t~post3#1.base, cstrlen_#t~post3#1.offset, cstrlen_#t~mem2#1, cstrlen_~s#1.base, cstrlen_~s#1.offset, cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~s#1.base, cstrlen_~s#1.offset := cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_~s#1.base, cstrlen_~s#1.offset; 149#L516-3 [2022-07-23 16:04:35,810 INFO L754 eck$LassoCheckResult]: Loop: 149#L516-3 call cstrlen_#t~mem2#1 := read~int(cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset, 1); 148#L516-1 assume !!(0 != cstrlen_#t~mem2#1);havoc cstrlen_#t~mem2#1;cstrlen_#t~post3#1.base, cstrlen_#t~post3#1.offset := cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_#t~post3#1.base, 1 + cstrlen_#t~post3#1.offset;havoc cstrlen_#t~post3#1.base, cstrlen_#t~post3#1.offset; 149#L516-3 [2022-07-23 16:04:35,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:04:35,810 INFO L85 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2022-07-23 16:04:35,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:04:35,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251647207] [2022-07-23 16:04:35,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:04:35,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:04:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:35,840 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:04:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:35,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:04:35,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:04:35,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1862, now seen corresponding path program 2 times [2022-07-23 16:04:35,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:04:35,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687225294] [2022-07-23 16:04:35,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:04:35,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:04:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:35,853 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:04:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:35,870 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:04:35,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:04:35,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1899811660, now seen corresponding path program 1 times [2022-07-23 16:04:35,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:04:35,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036020668] [2022-07-23 16:04:35,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:04:35,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:04:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:35,898 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:04:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:04:35,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:04:36,180 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 16:04:36,181 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 16:04:36,181 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 16:04:36,181 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 16:04:36,181 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 16:04:36,181 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:36,181 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 16:04:36,181 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 16:04:36,181 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-2.i_Iteration3_Lasso [2022-07-23 16:04:36,181 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 16:04:36,181 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 16:04:36,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:04:36,598 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 16:04:36,598 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 16:04:36,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:36,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:36,599 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:36,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-23 16:04:36,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:36,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:36,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:36,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:36,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:36,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:04:36,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:04:36,629 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:36,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:36,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:36,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:36,649 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:36,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-23 16:04:36,652 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:36,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:36,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:04:36,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:36,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:36,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:36,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:04:36,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:04:36,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:36,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:36,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:36,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:36,693 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:36,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-23 16:04:36,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:36,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:36,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:04:36,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:36,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:36,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:36,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:04:36,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:04:36,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:36,737 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 [2022-07-23 16:04:36,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:36,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:36,738 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:36,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:36,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:36,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:36,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:36,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:36,760 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:04:36,760 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:04:36,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-23 16:04:36,775 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:36,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:36,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:36,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:36,795 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:36,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-23 16:04:36,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:36,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:36,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:04:36,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:36,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:36,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:36,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:04:36,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:04:36,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:36,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:36,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:36,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:36,840 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:36,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-23 16:04:36,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:36,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:36,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:36,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:36,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:36,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:04:36,851 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:04:36,871 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:36,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:36,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:36,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:36,904 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:36,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:36,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:36,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:04:36,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:36,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:36,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:36,923 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:04:36,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:04:36,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-23 16:04:36,934 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:36,953 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 [2022-07-23 16:04:36,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:36,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:36,954 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:36,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-23 16:04:36,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:36,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:36,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:04:36,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:36,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:36,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:36,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:04:36,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:04:36,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:36,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:36,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:36,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:37,000 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:37,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-23 16:04:37,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:37,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:37,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:04:37,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:37,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:37,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:37,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:04:37,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:04:37,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:37,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:37,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:37,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:37,057 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:37,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-23 16:04:37,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:37,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:37,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:04:37,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:37,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:37,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:37,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:04:37,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:04:37,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:37,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:37,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:37,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:37,102 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:37,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-23 16:04:37,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:37,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:37,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:04:37,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:37,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:37,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:37,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:04:37,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:04:37,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:37,169 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 [2022-07-23 16:04:37,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:37,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:37,183 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:37,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-23 16:04:37,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:37,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:37,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:37,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:37,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:37,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:04:37,194 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:04:37,227 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:37,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:37,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:37,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:37,245 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:37,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:37,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:37,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:04:37,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:37,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:37,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:37,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:04:37,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:04:37,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-23 16:04:37,271 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:37,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:37,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:37,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:37,309 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:37,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-23 16:04:37,312 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:37,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:37,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:37,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:37,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:37,329 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:04:37,329 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:04:37,352 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:37,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:37,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:37,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:37,408 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:37,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-23 16:04:37,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:37,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:37,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:37,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:37,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:37,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:04:37,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:04:37,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:04:37,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-23 16:04:37,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:37,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:37,462 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 16:04:37,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-23 16:04:37,467 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 16:04:37,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:04:37,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:04:37,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:04:37,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:04:37,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:04:37,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:04:37,493 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 16:04:37,524 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-07-23 16:04:37,524 INFO L444 ModelExtractionUtils]: 18 out of 31 variables were initially zero. Simplification set additionally 10 variables to zero. [2022-07-23 16:04:37,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:04:37,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:04:37,540 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) [2022-07-23 16:04:37,543 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 [2022-07-23 16:04:37,543 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 16:04:37,552 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-23 16:04:37,552 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 16:04:37,552 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc5#1.base)_2) = -1*ULTIMATE.start_cstrlen_~p~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc5#1.base)_2 Supporting invariants [] [2022-07-23 16:04:37,569 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 [2022-07-23 16:04:37,577 INFO L293 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2022-07-23 16:04:37,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:04:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 16:04:37,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 16:04:37,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 16:04:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 16:04:37,632 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 16:04:37,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 16:04:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 16:04:37,647 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-07-23 16:04:37,647 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2022-07-23 16:04:37,667 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 15 transitions. Complement of second has 5 states. [2022-07-23 16:04:37,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 16:04:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2022-07-23 16:04:37,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-07-23 16:04:37,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2022-07-23 16:04:37,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 16:04:37,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2022-07-23 16:04:37,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 16:04:37,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2022-07-23 16:04:37,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 16:04:37,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2022-07-23 16:04:37,669 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 16:04:37,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2022-07-23 16:04:37,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-23 16:04:37,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-23 16:04:37,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-23 16:04:37,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 16:04:37,669 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 16:04:37,669 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 16:04:37,669 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 16:04:37,669 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-23 16:04:37,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-23 16:04:37,669 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 16:04:37,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-23 16:04:37,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 04:04:37 BoogieIcfgContainer [2022-07-23 16:04:37,674 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 16:04:37,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 16:04:37,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 16:04:37,674 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 16:04:37,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:04:34" (3/4) ... [2022-07-23 16:04:37,676 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-23 16:04:37,676 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 16:04:37,677 INFO L158 Benchmark]: Toolchain (without parser) took 4058.77ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 64.3MB in the beginning and 46.6MB in the end (delta: 17.7MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2022-07-23 16:04:37,677 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 16:04:37,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.13ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 64.1MB in the beginning and 86.1MB in the end (delta: -22.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-07-23 16:04:37,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.53ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 84.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 16:04:37,678 INFO L158 Benchmark]: Boogie Preprocessor took 39.99ms. Allocated memory is still 117.4MB. Free memory was 84.2MB in the beginning and 83.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 16:04:37,678 INFO L158 Benchmark]: RCFGBuilder took 396.24ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 73.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-23 16:04:37,679 INFO L158 Benchmark]: BuchiAutomizer took 3217.56ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 73.2MB in the beginning and 47.6MB in the end (delta: 25.6MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2022-07-23 16:04:37,679 INFO L158 Benchmark]: Witness Printer took 2.16ms. Allocated memory is still 142.6MB. Free memory was 47.6MB in the beginning and 46.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 16:04:37,681 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.13ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 64.1MB in the beginning and 86.1MB in the end (delta: -22.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.53ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 84.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.99ms. Allocated memory is still 117.4MB. Free memory was 84.2MB in the beginning and 83.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.24ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 73.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3217.56ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 73.2MB in the beginning and 47.6MB in the end (delta: 25.6MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. * Witness Printer took 2.16ms. Allocated memory is still 142.6MB. Free memory was 47.6MB in the beginning and 46.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * nondetString1 and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * p and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 20 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital110 mio100 ax116 hnf100 lsp80 ukn91 mio100 lsp53 div100 bol100 ite100 ukn100 eq176 hnf90 smp100 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 131ms VariablesStem: 6 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-23 16:04:37,703 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 [2022-07-23 16:04:37,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE