./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/cstrncat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 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/cstrncat-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 170d05f666fe960395aa4fb943b7fdfa4284d519 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 06:02:14,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 06:02:14,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 06:02:14,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 06:02:14,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 06:02:14,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 06:02:14,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 06:02:14,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 06:02:14,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 06:02:14,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 06:02:14,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 06:02:14,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 06:02:14,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 06:02:14,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 06:02:14,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 06:02:14,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 06:02:14,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 06:02:14,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 06:02:14,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 06:02:14,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 06:02:14,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 06:02:14,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 06:02:14,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 06:02:14,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 06:02:14,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 06:02:14,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 06:02:14,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 06:02:14,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 06:02:14,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 06:02:14,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 06:02:14,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 06:02:14,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 06:02:14,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 06:02:14,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 06:02:14,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 06:02:14,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 06:02:14,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 06:02:14,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 06:02:14,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 06:02:14,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 06:02:14,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 06:02:14,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 06:02:14,411 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 06:02:14,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 06:02:14,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 06:02:14,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 06:02:14,414 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 06:02:14,414 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 06:02:14,414 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 06:02:14,415 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 06:02:14,415 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 06:02:14,415 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 06:02:14,415 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 06:02:14,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 06:02:14,416 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 06:02:14,416 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 06:02:14,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 06:02:14,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 06:02:14,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 06:02:14,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 06:02:14,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 06:02:14,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 06:02:14,418 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 06:02:14,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 06:02:14,418 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 06:02:14,419 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 06:02:14,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 06:02:14,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 06:02:14,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 06:02:14,420 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 06:02:14,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 06:02:14,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 06:02:14,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 06:02:14,421 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 06:02:14,422 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 06:02:14,423 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 170d05f666fe960395aa4fb943b7fdfa4284d519 [2020-10-26 06:02:14,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 06:02:14,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 06:02:14,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 06:02:14,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 06:02:14,833 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 06:02:14,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/cstrncat-alloca-2.i [2020-10-26 06:02:14,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe7d3880/dd02173306eb4511a28009155e7d496c/FLAGf22a91fb3 [2020-10-26 06:02:15,705 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 06:02:15,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/cstrncat-alloca-2.i [2020-10-26 06:02:15,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe7d3880/dd02173306eb4511a28009155e7d496c/FLAGf22a91fb3 [2020-10-26 06:02:15,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe7d3880/dd02173306eb4511a28009155e7d496c [2020-10-26 06:02:16,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 06:02:16,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 06:02:16,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 06:02:16,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 06:02:16,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 06:02:16,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:02:16" (1/1) ... [2020-10-26 06:02:16,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e8c6605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16, skipping insertion in model container [2020-10-26 06:02:16,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:02:16" (1/1) ... [2020-10-26 06:02:16,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 06:02:16,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 06:02:16,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:02:16,388 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 06:02:16,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:02:16,520 INFO L208 MainTranslator]: Completed translation [2020-10-26 06:02:16,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16 WrapperNode [2020-10-26 06:02:16,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 06:02:16,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 06:02:16,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 06:02:16,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 06:02:16,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16" (1/1) ... [2020-10-26 06:02:16,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16" (1/1) ... [2020-10-26 06:02:16,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 06:02:16,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 06:02:16,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 06:02:16,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 06:02:16,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16" (1/1) ... [2020-10-26 06:02:16,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16" (1/1) ... [2020-10-26 06:02:16,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16" (1/1) ... [2020-10-26 06:02:16,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16" (1/1) ... [2020-10-26 06:02:16,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16" (1/1) ... [2020-10-26 06:02:16,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16" (1/1) ... [2020-10-26 06:02:16,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16" (1/1) ... [2020-10-26 06:02:16,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 06:02:16,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 06:02:16,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 06:02:16,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 06:02:16,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 06:02:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 06:02:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 06:02:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 06:02:16,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 06:02:16,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 06:02:17,305 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 06:02:17,306 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-26 06:02:17,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:17 BoogieIcfgContainer [2020-10-26 06:02:17,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 06:02:17,311 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 06:02:17,312 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 06:02:17,316 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 06:02:17,317 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:17,318 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 06:02:16" (1/3) ... [2020-10-26 06:02:17,319 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40c07800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:02:17, skipping insertion in model container [2020-10-26 06:02:17,320 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:17,320 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:16" (2/3) ... [2020-10-26 06:02:17,321 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40c07800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:02:17, skipping insertion in model container [2020-10-26 06:02:17,321 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:17,321 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:17" (3/3) ... [2020-10-26 06:02:17,324 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrncat-alloca-2.i [2020-10-26 06:02:17,395 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 06:02:17,396 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 06:02:17,396 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 06:02:17,396 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 06:02:17,396 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 06:02:17,397 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 06:02:17,397 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 06:02:17,397 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 06:02:17,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2020-10-26 06:02:17,445 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 9 [2020-10-26 06:02:17,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:17,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:17,454 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-26 06:02:17,454 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:17,455 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 06:02:17,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2020-10-26 06:02:17,460 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 9 [2020-10-26 06:02:17,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:17,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:17,461 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-26 06:02:17,462 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:17,472 INFO L794 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 15#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 19#L531true assume !(main_~length1~0 < 1); 24#L531-2true assume !(main_~length2~0 < 1); 14#L534-1true assume !(main_~n~0 < 1); 6#L537-1true assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 20#L544-3true [2020-10-26 06:02:17,473 INFO L796 eck$LassoCheckResult]: Loop: 20#L544-3true assume !!(main_~i~0 < main_~length1~0 - main_~n~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 17#L544-2true main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 20#L544-3true [2020-10-26 06:02:17,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:17,485 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2020-10-26 06:02:17,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:17,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493600645] [2020-10-26 06:02:17,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:17,648 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:17,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:17,722 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:17,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:17,727 INFO L82 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2020-10-26 06:02:17,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:17,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204856262] [2020-10-26 06:02:17,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:17,755 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:17,772 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:17,777 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:17,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:17,790 INFO L82 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2020-10-26 06:02:17,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:17,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296182665] [2020-10-26 06:02:17,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:17,842 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:17,872 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:17,877 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:18,326 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2020-10-26 06:02:18,496 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-26 06:02:18,510 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:18,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:18,512 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:18,512 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:18,512 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:18,512 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:18,512 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:18,513 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:18,513 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat-alloca-2.i_Iteration1_Lasso [2020-10-26 06:02:18,513 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:18,513 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:18,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,815 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-10-26 06:02:18,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:19,217 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:19,223 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:19,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:19,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,292 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,295 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:19,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,339 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:19,340 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,345 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,389 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:19,390 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:19,398 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:19,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:19,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:19,485 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:19,530 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,535 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:19,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:19,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:19,628 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:19,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,679 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:19,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,724 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:19,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:19,771 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,776 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:19,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,835 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:19,835 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:19,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:19,899 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,909 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:19,945 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:20,004 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:20,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:20,026 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:20,054 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-10-26 06:02:20,055 INFO L444 ModelExtractionUtils]: 22 out of 31 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:20,064 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:20,072 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:02:20,073 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:20,073 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~n~0 + 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-26 06:02:20,258 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-26 06:02:20,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:20,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 06:02:20,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:20,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:02:20,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:20,389 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 [2020-10-26 06:02:20,396 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states. Second operand 3 states. [2020-10-26 06:02:20,471 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states.. Second operand 3 states. Result 61 states and 89 transitions. Complement of second has 7 states. [2020-10-26 06:02:20,472 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 [2020-10-26 06:02:20,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 06:02:20,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 62 transitions. [2020-10-26 06:02:20,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 62 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-26 06:02:20,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:20,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 62 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-26 06:02:20,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:20,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 62 transitions. Stem has 6 letters. Loop has 4 letters. [2020-10-26 06:02:20,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:20,479 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 89 transitions. [2020-10-26 06:02:20,485 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-26 06:02:20,489 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 18 states and 26 transitions. [2020-10-26 06:02:20,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-10-26 06:02:20,490 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-10-26 06:02:20,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2020-10-26 06:02:20,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:20,491 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-10-26 06:02:20,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2020-10-26 06:02:20,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-26 06:02:20,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-26 06:02:20,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2020-10-26 06:02:20,528 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-10-26 06:02:20,528 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-10-26 06:02:20,528 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 06:02:20,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2020-10-26 06:02:20,529 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-26 06:02:20,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:20,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:20,530 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:20,530 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:20,530 INFO L794 eck$LassoCheckResult]: Stem: 174#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 170#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 171#L531 assume !(main_~length1~0 < 1); 175#L531-2 assume !(main_~length2~0 < 1); 169#L534-1 assume !(main_~n~0 < 1); 166#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 167#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 176#L544-4 main_~i~1 := 0; 165#L549-3 [2020-10-26 06:02:20,530 INFO L796 eck$LassoCheckResult]: Loop: 165#L549-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 164#L549-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 165#L549-3 [2020-10-26 06:02:20,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:20,531 INFO L82 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2020-10-26 06:02:20,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:20,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301348938] [2020-10-26 06:02:20,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:20,544 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:20,554 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:20,558 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:20,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:20,559 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2020-10-26 06:02:20,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:20,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817323651] [2020-10-26 06:02:20,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:20,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:20,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:20,585 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:20,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:20,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495129, now seen corresponding path program 1 times [2020-10-26 06:02:20,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:20,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528983527] [2020-10-26 06:02:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:20,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528983527] [2020-10-26 06:02:20,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:02:20,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 06:02:20,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289687863] [2020-10-26 06:02:20,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:02:20,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 06:02:20,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 06:02:20,727 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand 5 states. [2020-10-26 06:02:20,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:02:20,820 INFO L93 Difference]: Finished difference Result 41 states and 56 transitions. [2020-10-26 06:02:20,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 06:02:20,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 56 transitions. [2020-10-26 06:02:20,823 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 17 [2020-10-26 06:02:20,825 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 41 states and 56 transitions. [2020-10-26 06:02:20,825 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2020-10-26 06:02:20,825 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2020-10-26 06:02:20,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 56 transitions. [2020-10-26 06:02:20,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:20,826 INFO L691 BuchiCegarLoop]: Abstraction has 41 states and 56 transitions. [2020-10-26 06:02:20,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 56 transitions. [2020-10-26 06:02:20,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 25. [2020-10-26 06:02:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-26 06:02:20,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2020-10-26 06:02:20,829 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 36 transitions. [2020-10-26 06:02:20,829 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 36 transitions. [2020-10-26 06:02:20,830 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 06:02:20,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 36 transitions. [2020-10-26 06:02:20,831 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-26 06:02:20,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:20,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:20,831 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:20,831 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:20,832 INFO L794 eck$LassoCheckResult]: Stem: 248#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 244#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 245#L531 assume !(main_~length1~0 < 1); 249#L531-2 assume main_~length2~0 < 1;main_~length2~0 := 1; 253#L534-1 assume !(main_~n~0 < 1); 257#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 250#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 251#L544-4 main_~i~1 := 0; 241#L549-3 assume !(main_~i~1 < main_~length2~0 - 1); 242#L549-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post7, cstrncat_#t~post8.base, cstrncat_#t~post8.offset, cstrncat_#t~post4.base, cstrncat_#t~post4.offset, cstrncat_#t~mem5, cstrncat_#t~short6, cstrncat_#t~mem9, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 235#L517-3 [2020-10-26 06:02:20,832 INFO L796 eck$LassoCheckResult]: Loop: 235#L517-3 call cstrncat_#t~mem2 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 233#L517-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 235#L517-3 [2020-10-26 06:02:20,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:20,832 INFO L82 PathProgramCache]: Analyzing trace with hash -61512291, now seen corresponding path program 1 times [2020-10-26 06:02:20,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:20,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965074758] [2020-10-26 06:02:20,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:20,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:20,866 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:20,872 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:20,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:20,872 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 1 times [2020-10-26 06:02:20,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:20,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484726289] [2020-10-26 06:02:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:20,878 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:20,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:20,882 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:20,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:20,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1016232354, now seen corresponding path program 1 times [2020-10-26 06:02:20,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:20,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495448237] [2020-10-26 06:02:20,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:21,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:21,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495448237] [2020-10-26 06:02:21,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:02:21,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 06:02:21,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375236342] [2020-10-26 06:02:21,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:02:21,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 06:02:21,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 06:02:21,084 INFO L87 Difference]: Start difference. First operand 25 states and 36 transitions. cyclomatic complexity: 16 Second operand 6 states. [2020-10-26 06:02:21,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:02:21,193 INFO L93 Difference]: Finished difference Result 38 states and 51 transitions. [2020-10-26 06:02:21,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 06:02:21,194 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 51 transitions. [2020-10-26 06:02:21,195 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2020-10-26 06:02:21,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 38 states and 51 transitions. [2020-10-26 06:02:21,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2020-10-26 06:02:21,196 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2020-10-26 06:02:21,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 51 transitions. [2020-10-26 06:02:21,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:21,197 INFO L691 BuchiCegarLoop]: Abstraction has 38 states and 51 transitions. [2020-10-26 06:02:21,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 51 transitions. [2020-10-26 06:02:21,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2020-10-26 06:02:21,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-26 06:02:21,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2020-10-26 06:02:21,200 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 41 transitions. [2020-10-26 06:02:21,200 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 41 transitions. [2020-10-26 06:02:21,201 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 06:02:21,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 41 transitions. [2020-10-26 06:02:21,202 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-26 06:02:21,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:21,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:21,202 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:21,202 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:21,203 INFO L794 eck$LassoCheckResult]: Stem: 329#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 325#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 326#L531 assume !(main_~length1~0 < 1); 330#L531-2 assume !(main_~length2~0 < 1); 323#L534-1 assume !(main_~n~0 < 1); 324#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 340#L544-3 assume !!(main_~i~0 < main_~length1~0 - main_~n~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 339#L544-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 338#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 337#L544-4 main_~i~1 := 0; 316#L549-3 [2020-10-26 06:02:21,203 INFO L796 eck$LassoCheckResult]: Loop: 316#L549-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 315#L549-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 316#L549-3 [2020-10-26 06:02:21,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:21,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1713550361, now seen corresponding path program 1 times [2020-10-26 06:02:21,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:21,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767103396] [2020-10-26 06:02:21,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:21,215 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:21,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:21,229 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:21,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:21,230 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 2 times [2020-10-26 06:02:21,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:21,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670510611] [2020-10-26 06:02:21,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:21,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:21,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:21,240 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:21,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:21,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1749424059, now seen corresponding path program 1 times [2020-10-26 06:02:21,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:21,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393514233] [2020-10-26 06:02:21,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:21,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:21,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:21,271 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:21,552 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2020-10-26 06:02:21,665 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:21,665 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:21,666 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:21,666 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:21,666 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:21,666 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:21,666 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:21,666 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:21,666 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat-alloca-2.i_Iteration4_Lasso [2020-10-26 06:02:21,666 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:21,666 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:21,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,913 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-26 06:02:21,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:21,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:22,178 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-10-26 06:02:22,513 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:22,513 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:22,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:22,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:22,526 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:22,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:22,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:22,562 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:22,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:22,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:22,592 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:22,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:22,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:22,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:22,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:22,654 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,679 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:22,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,681 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:22,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:22,682 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:22,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:22,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:22,718 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:22,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:22,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:22,746 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,769 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:22,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:22,777 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:22,818 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,822 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:22,822 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,827 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:22,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:22,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:22,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:22,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:22,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,923 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:22,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:22,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:22,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:22,964 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:22,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:22,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:22,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:22,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:22,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:22,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:22,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:23,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:23,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:23,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:23,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:23,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:23,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:23,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:23,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:23,032 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:23,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:23,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:23,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:23,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:23,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:23,067 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:23,067 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:23,085 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:23,173 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-10-26 06:02:23,173 INFO L444 ModelExtractionUtils]: 12 out of 37 variables were initially zero. Simplification set additionally 21 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:23,178 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:23,182 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:02:23,182 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:23,182 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1, ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~nondetString2~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1 - 1*ULTIMATE.start_main_~i~1 - 1*ULTIMATE.start_main_~nondetString2~0.offset Supporting invariants [] [2020-10-26 06:02:23,249 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2020-10-26 06:02:23,251 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:02:23,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:23,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 06:02:23,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:23,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:02:23,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:23,328 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 [2020-10-26 06:02:23,328 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 41 transitions. cyclomatic complexity: 16 Second operand 3 states. [2020-10-26 06:02:23,360 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 41 transitions. cyclomatic complexity: 16. Second operand 3 states. Result 41 states and 60 transitions. Complement of second has 6 states. [2020-10-26 06:02:23,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 06:02:23,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 06:02:23,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2020-10-26 06:02:23,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-26 06:02:23,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:23,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2020-10-26 06:02:23,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:23,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 10 letters. Loop has 4 letters. [2020-10-26 06:02:23,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:23,363 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 60 transitions. [2020-10-26 06:02:23,365 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-26 06:02:23,366 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 31 states and 43 transitions. [2020-10-26 06:02:23,366 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2020-10-26 06:02:23,366 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-10-26 06:02:23,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 43 transitions. [2020-10-26 06:02:23,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:23,366 INFO L691 BuchiCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-10-26 06:02:23,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 43 transitions. [2020-10-26 06:02:23,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-26 06:02:23,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-26 06:02:23,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2020-10-26 06:02:23,370 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-10-26 06:02:23,370 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-10-26 06:02:23,370 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-26 06:02:23,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 43 transitions. [2020-10-26 06:02:23,371 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-26 06:02:23,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:23,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:23,371 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:23,371 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:23,372 INFO L794 eck$LassoCheckResult]: Stem: 487#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 483#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 484#L531 assume !(main_~length1~0 < 1); 488#L531-2 assume main_~length2~0 < 1;main_~length2~0 := 1; 482#L534-1 assume !(main_~n~0 < 1); 476#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 477#L544-3 assume !!(main_~i~0 < main_~length1~0 - main_~n~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 485#L544-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 486#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 490#L544-4 main_~i~1 := 0; 480#L549-3 assume !(main_~i~1 < main_~length2~0 - 1); 481#L549-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post7, cstrncat_#t~post8.base, cstrncat_#t~post8.offset, cstrncat_#t~post4.base, cstrncat_#t~post4.offset, cstrncat_#t~mem5, cstrncat_#t~short6, cstrncat_#t~mem9, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 478#L517-3 [2020-10-26 06:02:23,372 INFO L796 eck$LassoCheckResult]: Loop: 478#L517-3 call cstrncat_#t~mem2 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 479#L517-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 478#L517-3 [2020-10-26 06:02:23,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:23,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1069365631, now seen corresponding path program 1 times [2020-10-26 06:02:23,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:23,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260417549] [2020-10-26 06:02:23,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:23,387 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:23,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:23,404 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:23,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:23,405 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 2 times [2020-10-26 06:02:23,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:23,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130713295] [2020-10-26 06:02:23,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:23,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:23,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:23,413 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:23,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:23,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1163189508, now seen corresponding path program 1 times [2020-10-26 06:02:23,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:23,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392959398] [2020-10-26 06:02:23,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:23,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:23,445 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:23,450 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:24,185 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 115 [2020-10-26 06:02:24,397 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-26 06:02:24,402 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:24,402 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:24,402 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:24,402 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:24,403 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:24,403 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:24,403 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:24,403 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:24,403 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat-alloca-2.i_Iteration5_Lasso [2020-10-26 06:02:24,403 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:24,403 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:24,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,817 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-10-26 06:02:24,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:24,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:25,348 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-26 06:02:25,731 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-26 06:02:25,918 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:25,919 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:25,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:25,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:25,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:25,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:25,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:25,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:25,937 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:25,941 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:25,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:25,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:25,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:25,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:25,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:25,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:25,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:25,999 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:26,026 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:26,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:26,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:26,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:26,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:26,033 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:26,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:26,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:26,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:26,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:26,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:26,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:26,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:26,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:26,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:26,129 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:26,167 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-10-26 06:02:26,167 INFO L444 ModelExtractionUtils]: 15 out of 61 variables were initially zero. Simplification set additionally 43 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:26,170 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 06:02:26,172 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:02:26,173 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:26,173 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3, ULTIMATE.start_cstrncat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 - 1*ULTIMATE.start_cstrncat_~s~0.offset Supporting invariants [] [2020-10-26 06:02:26,234 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-10-26 06:02:26,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:02:26,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:26,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-26 06:02:26,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:26,325 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 06:02:26,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:26,348 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 [2020-10-26 06:02:26,348 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 43 transitions. cyclomatic complexity: 17 Second operand 4 states. [2020-10-26 06:02:26,422 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 43 transitions. cyclomatic complexity: 17. Second operand 4 states. Result 45 states and 64 transitions. Complement of second has 7 states. [2020-10-26 06:02:26,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 06:02:26,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 06:02:26,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2020-10-26 06:02:26,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 12 letters. Loop has 2 letters. [2020-10-26 06:02:26,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:26,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 14 letters. Loop has 2 letters. [2020-10-26 06:02:26,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:26,425 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 12 letters. Loop has 4 letters. [2020-10-26 06:02:26,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:26,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 64 transitions. [2020-10-26 06:02:26,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 06:02:26,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 40 states and 54 transitions. [2020-10-26 06:02:26,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2020-10-26 06:02:26,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-10-26 06:02:26,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 54 transitions. [2020-10-26 06:02:26,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 06:02:26,428 INFO L691 BuchiCegarLoop]: Abstraction has 40 states and 54 transitions. [2020-10-26 06:02:26,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 54 transitions. [2020-10-26 06:02:26,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2020-10-26 06:02:26,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-26 06:02:26,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2020-10-26 06:02:26,431 INFO L714 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions. [2020-10-26 06:02:26,431 INFO L594 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions. [2020-10-26 06:02:26,431 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-26 06:02:26,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 53 transitions. [2020-10-26 06:02:26,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 06:02:26,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:26,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:26,433 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:26,433 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 06:02:26,434 INFO L794 eck$LassoCheckResult]: Stem: 676#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 672#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 673#L531 assume !(main_~length1~0 < 1); 677#L531-2 assume main_~length2~0 < 1;main_~length2~0 := 1; 671#L534-1 assume !(main_~n~0 < 1); 664#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 665#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 678#L544-4 main_~i~1 := 0; 691#L549-3 assume !(main_~i~1 < main_~length2~0 - 1); 689#L549-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post7, cstrncat_#t~post8.base, cstrncat_#t~post8.offset, cstrncat_#t~post4.base, cstrncat_#t~post4.offset, cstrncat_#t~mem5, cstrncat_#t~short6, cstrncat_#t~mem9, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 688#L517-3 call cstrncat_#t~mem2 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 656#L517-1 assume !(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2; 657#L519-4 cstrncat_#t~short6 := 0 != cstrncat_~n; 694#L519 assume !cstrncat_#t~short6; 681#L519-2 assume !!cstrncat_#t~short6;havoc cstrncat_#t~short6;havoc cstrncat_#t~mem5;havoc cstrncat_#t~post4.base, cstrncat_#t~post4.offset;cstrncat_#t~post7 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post7 - 1;havoc cstrncat_#t~post7;cstrncat_#t~post8.base, cstrncat_#t~post8.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post8.base, 1 + cstrncat_#t~post8.offset;havoc cstrncat_#t~post8.base, cstrncat_#t~post8.offset; 693#L519-4 cstrncat_#t~short6 := 0 != cstrncat_~n; 659#L519 [2020-10-26 06:02:26,434 INFO L796 eck$LassoCheckResult]: Loop: 659#L519 assume !cstrncat_#t~short6; 680#L519-2 assume !!cstrncat_#t~short6;havoc cstrncat_#t~short6;havoc cstrncat_#t~mem5;havoc cstrncat_#t~post4.base, cstrncat_#t~post4.offset;cstrncat_#t~post7 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post7 - 1;havoc cstrncat_#t~post7;cstrncat_#t~post8.base, cstrncat_#t~post8.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post8.base, 1 + cstrncat_#t~post8.offset;havoc cstrncat_#t~post8.base, cstrncat_#t~post8.offset; 658#L519-4 cstrncat_#t~short6 := 0 != cstrncat_~n; 659#L519 [2020-10-26 06:02:26,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:26,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1436393274, now seen corresponding path program 1 times [2020-10-26 06:02:26,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:26,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118478940] [2020-10-26 06:02:26,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:26,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118478940] [2020-10-26 06:02:26,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:02:26,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 06:02:26,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230931769] [2020-10-26 06:02:26,500 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 06:02:26,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:26,501 INFO L82 PathProgramCache]: Analyzing trace with hash 104447, now seen corresponding path program 1 times [2020-10-26 06:02:26,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:26,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586632384] [2020-10-26 06:02:26,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:26,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586632384] [2020-10-26 06:02:26,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:02:26,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 06:02:26,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839656537] [2020-10-26 06:02:26,511 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-26 06:02:26,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:02:26,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 06:02:26,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 06:02:26,512 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. cyclomatic complexity: 20 Second operand 3 states. [2020-10-26 06:02:26,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:02:26,522 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2020-10-26 06:02:26,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 06:02:26,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 49 transitions. [2020-10-26 06:02:26,523 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 06:02:26,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2020-10-26 06:02:26,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 06:02:26,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 06:02:26,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 06:02:26,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:26,524 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:02:26,524 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:02:26,524 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:02:26,524 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-26 06:02:26,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 06:02:26,524 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 06:02:26,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 06:02:26,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 06:02:26 BoogieIcfgContainer [2020-10-26 06:02:26,530 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 06:02:26,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 06:02:26,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 06:02:26,531 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 06:02:26,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:17" (3/4) ... [2020-10-26 06:02:26,534 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 06:02:26,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 06:02:26,536 INFO L168 Benchmark]: Toolchain (without parser) took 10519.14 ms. Allocated memory was 44.0 MB in the beginning and 144.7 MB in the end (delta: 100.7 MB). Free memory was 29.9 MB in the beginning and 72.3 MB in the end (delta: -42.4 MB). Peak memory consumption was 57.5 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:26,537 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 35.7 MB. Free memory was 18.3 MB in the beginning and 18.2 MB in the end (delta: 19.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:02:26,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.48 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 29.3 MB in the beginning and 37.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:26,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.46 ms. Allocated memory is still 54.5 MB. Free memory was 37.9 MB in the beginning and 35.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:26,539 INFO L168 Benchmark]: Boogie Preprocessor took 66.38 ms. Allocated memory is still 54.5 MB. Free memory was 35.8 MB in the beginning and 34.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:02:26,539 INFO L168 Benchmark]: RCFGBuilder took 631.30 ms. Allocated memory is still 54.5 MB. Free memory was 34.3 MB in the beginning and 29.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:26,540 INFO L168 Benchmark]: BuchiAutomizer took 9218.93 ms. Allocated memory was 54.5 MB in the beginning and 144.7 MB in the end (delta: 90.2 MB). Free memory was 29.6 MB in the beginning and 72.3 MB in the end (delta: -42.7 MB). Peak memory consumption was 47.0 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:26,540 INFO L168 Benchmark]: Witness Printer took 3.63 ms. Allocated memory is still 144.7 MB. Free memory is still 72.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:02:26,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 35.7 MB. Free memory was 18.3 MB in the beginning and 18.2 MB in the end (delta: 19.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 490.48 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 29.3 MB in the beginning and 37.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.46 ms. Allocated memory is still 54.5 MB. Free memory was 37.9 MB in the beginning and 35.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.38 ms. Allocated memory is still 54.5 MB. Free memory was 35.8 MB in the beginning and 34.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 631.30 ms. Allocated memory is still 54.5 MB. Free memory was 34.3 MB in the beginning and 29.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 9218.93 ms. Allocated memory was 54.5 MB in the beginning and 144.7 MB in the end (delta: 90.2 MB). Free memory was 29.6 MB in the beginning and 72.3 MB in the end (delta: -42.7 MB). Peak memory consumption was 47.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.63 ms. Allocated memory is still 144.7 MB. Free memory is still 72.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * n + length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * i + -1 * nondetString2 and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * s and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.1s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 8.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 39 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 126 SDtfs, 156 SDslu, 169 SDs, 0 SdLazy, 115 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI1 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital175 mio100 ax110 hnf98 lsp85 ukn77 mio100 lsp60 div100 bol100 ite100 ukn100 eq168 hnf90 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...