./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/openbsd_cstrlen-alloca-1.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 b812e7d14425eea3a24125f5e2db40eadfc6c14c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 20:08:20,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:08:20,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:08:20,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:08:20,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:08:20,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:08:20,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:08:20,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:08:20,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:08:20,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:08:20,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:08:20,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:08:20,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:08:20,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:08:20,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:08:20,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:08:20,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:08:20,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:08:20,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:08:20,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:08:20,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:08:20,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:08:20,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:08:20,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:08:20,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:08:20,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:08:20,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:08:20,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:08:20,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:08:20,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:08:20,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:08:20,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:08:20,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:08:20,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:08:20,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:08:20,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:08:20,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:08:20,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:08:20,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:08:20,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:08:20,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:08:20,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:08:20,386 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:08:20,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:08:20,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:08:20,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:08:20,388 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:08:20,388 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:08:20,388 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:08:20,389 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:08:20,389 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:08:20,389 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:08:20,389 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:08:20,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:08:20,390 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:08:20,390 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:08:20,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:08:20,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:08:20,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:08:20,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:08:20,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:08:20,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:08:20,392 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:08:20,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:08:20,393 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:08:20,393 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:08:20,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:08:20,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:08:20,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:08:20,394 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:08:20,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:08:20,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:08:20,395 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:08:20,396 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:08:20,396 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> b812e7d14425eea3a24125f5e2db40eadfc6c14c [2019-11-19 20:08:20,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:08:20,726 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:08:20,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:08:20,732 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:08:20,732 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:08:20,733 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca-1.i [2019-11-19 20:08:20,803 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21c484a4d/0abf49565f1e418faf0e96d39384fcbe/FLAGc0a8900a8 [2019-11-19 20:08:21,369 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:08:21,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca-1.i [2019-11-19 20:08:21,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21c484a4d/0abf49565f1e418faf0e96d39384fcbe/FLAGc0a8900a8 [2019-11-19 20:08:21,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21c484a4d/0abf49565f1e418faf0e96d39384fcbe [2019-11-19 20:08:21,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:08:21,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:08:21,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:08:21,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:08:21,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:08:21,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:21" (1/1) ... [2019-11-19 20:08:21,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b37785d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:21, skipping insertion in model container [2019-11-19 20:08:21,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:21" (1/1) ... [2019-11-19 20:08:21,680 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:08:21,729 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:08:22,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:08:22,113 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:08:22,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:08:22,218 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:08:22,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22 WrapperNode [2019-11-19 20:08:22,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:08:22,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:08:22,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:08:22,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:08:22,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:08:22,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:08:22,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:08:22,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:08:22,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:08:22,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:08:22,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:08:22,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:08:22,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (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 [2019-11-19 20:08:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 20:08:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 20:08:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:08:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 20:08:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:08:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:08:22,626 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:08:22,627 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-19 20:08:22,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:22 BoogieIcfgContainer [2019-11-19 20:08:22,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:08:22,628 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:08:22,629 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:08:22,631 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:08:22,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:08:22,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:08:21" (1/3) ... [2019-11-19 20:08:22,633 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@654e264d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:08:22, skipping insertion in model container [2019-11-19 20:08:22,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:08:22,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (2/3) ... [2019-11-19 20:08:22,634 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@654e264d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:08:22, skipping insertion in model container [2019-11-19 20:08:22,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:08:22,635 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:22" (3/3) ... [2019-11-19 20:08:22,636 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrlen-alloca-1.i [2019-11-19 20:08:22,680 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:08:22,680 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:08:22,680 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:08:22,680 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:08:22,680 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:08:22,680 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:08:22,680 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:08:22,681 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:08:22,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-19 20:08:22,714 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-19 20:08:22,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:22,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:22,720 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-19 20:08:22,720 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 20:08:22,720 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:08:22,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-19 20:08:22,722 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-19 20:08:22,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:22,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:22,722 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-19 20:08:22,722 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 20:08:22,728 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 12#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 7#L524true assume !(main_~length1~0 < 1); 11#L524-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 5#L528-3true [2019-11-19 20:08:22,728 INFO L796 eck$LassoCheckResult]: Loop: 5#L528-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3#L528-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5#L528-3true [2019-11-19 20:08:22,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:22,734 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-11-19 20:08:22,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:22,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643328331] [2019-11-19 20:08:22,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:22,875 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:22,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:22,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2019-11-19 20:08:22,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:22,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364725531] [2019-11-19 20:08:22,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:22,897 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:22,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:22,899 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2019-11-19 20:08:22,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:22,900 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563046575] [2019-11-19 20:08:22,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:22,941 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:23,176 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:08:23,177 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:08:23,177 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:08:23,178 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:08:23,178 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:08:23,178 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,178 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:08:23,178 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:08:23,179 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrlen-alloca-1.i_Iteration1_Lasso [2019-11-19 20:08:23,179 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:08:23,179 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:08:23,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,651 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:08:23,656 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) [2019-11-19 20:08:23,674 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 [2019-11-19 20:08:23,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:23,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:23,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,686 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) [2019-11-19 20:08:23,703 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 [2019-11-19 20:08:23,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:23,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:23,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:23,718 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 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,736 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 [2019-11-19 20:08:23,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:23,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:23,741 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:23,744 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 [2019-11-19 20:08:23,759 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 [2019-11-19 20:08:23,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,773 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:23,774 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:23,778 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) [2019-11-19 20:08:23,789 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 [2019-11-19 20:08:23,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,795 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:23,796 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,801 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) [2019-11-19 20:08:23,813 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 [2019-11-19 20:08:23,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,819 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:23,819 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,824 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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,845 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 [2019-11-19 20:08:23,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:23,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:23,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:23,851 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 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,859 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 [2019-11-19 20:08:23,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,871 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:23,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:23,887 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:08:23,910 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-19 20:08:23,910 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. 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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,918 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 20:08:23,922 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 20:08:23,922 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:08:23,923 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-19 20:08:23,942 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-19 20:08:23,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:24,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 20:08:24,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:24,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 20:08:24,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:24,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:24,077 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 [2019-11-19 20:08:24,079 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-11-19 20:08:24,153 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 35 states and 45 transitions. Complement of second has 7 states. [2019-11-19 20:08:24,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 20:08:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 20:08:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2019-11-19 20:08:24,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-19 20:08:24,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:24,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-19 20:08:24,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:24,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-19 20:08:24,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:24,165 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2019-11-19 20:08:24,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:24,177 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 11 states and 14 transitions. [2019-11-19 20:08:24,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-11-19 20:08:24,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-11-19 20:08:24,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-11-19 20:08:24,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:24,181 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-19 20:08:24,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-11-19 20:08:24,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-19 20:08:24,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-19 20:08:24,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-11-19 20:08:24,213 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-19 20:08:24,213 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-19 20:08:24,213 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:08:24,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-11-19 20:08:24,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:24,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:24,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:24,217 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:08:24,217 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:08:24,218 INFO L794 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 107#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 108#L524 assume !(main_~length1~0 < 1); 117#L524-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 114#L528-3 assume !(main_~i~0 < main_~length1~0 - 1); 115#L528-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~str.base, cstrlen_#in~str.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 113#L518-4 [2019-11-19 20:08:24,218 INFO L796 eck$LassoCheckResult]: Loop: 113#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 116#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 112#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 113#L518-4 [2019-11-19 20:08:24,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:24,219 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2019-11-19 20:08:24,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:24,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203515520] [2019-11-19 20:08:24,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:24,293 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:24,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:24,295 INFO L82 PathProgramCache]: Analyzing trace with hash 56764, now seen corresponding path program 1 times [2019-11-19 20:08:24,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:24,295 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597675912] [2019-11-19 20:08:24,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:24,318 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:24,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:24,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1183925680, now seen corresponding path program 1 times [2019-11-19 20:08:24,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:24,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118584725] [2019-11-19 20:08:24,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:24,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:24,539 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118584725] [2019-11-19 20:08:24,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:08:24,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-19 20:08:24,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217673522] [2019-11-19 20:08:24,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:08:24,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 20:08:24,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-19 20:08:24,593 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 7 states. [2019-11-19 20:08:24,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:08:24,679 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-11-19 20:08:24,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 20:08:24,680 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2019-11-19 20:08:24,681 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:24,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 12 states and 14 transitions. [2019-11-19 20:08:24,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-19 20:08:24,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-11-19 20:08:24,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2019-11-19 20:08:24,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:24,683 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-19 20:08:24,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2019-11-19 20:08:24,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-19 20:08:24,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-19 20:08:24,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-19 20:08:24,687 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-19 20:08:24,687 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-19 20:08:24,687 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 20:08:24,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2019-11-19 20:08:24,688 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:24,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:24,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:24,696 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:24,697 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:08:24,697 INFO L794 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 149#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 150#L524 assume !(main_~length1~0 < 1); 159#L524-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 156#L528-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 151#L528-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 152#L528-3 assume !(main_~i~0 < main_~length1~0 - 1); 157#L528-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~str.base, cstrlen_#in~str.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 155#L518-4 [2019-11-19 20:08:24,698 INFO L796 eck$LassoCheckResult]: Loop: 155#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 158#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 154#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 155#L518-4 [2019-11-19 20:08:24,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:24,698 INFO L82 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2019-11-19 20:08:24,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:24,699 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823156150] [2019-11-19 20:08:24,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:24,759 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:24,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:24,762 INFO L82 PathProgramCache]: Analyzing trace with hash 56764, now seen corresponding path program 2 times [2019-11-19 20:08:24,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:24,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400723611] [2019-11-19 20:08:24,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:24,777 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:24,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:24,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1235379726, now seen corresponding path program 1 times [2019-11-19 20:08:24,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:24,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559831750] [2019-11-19 20:08:24,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:24,842 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:25,090 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-11-19 20:08:25,184 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:08:25,185 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:08:25,185 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:08:25,185 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:08:25,185 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:08:25,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:08:25,186 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:08:25,186 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrlen-alloca-1.i_Iteration3_Lasso [2019-11-19 20:08:25,186 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:08:25,186 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:08:25,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,342 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-11-19 20:08:25,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:25,837 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:08:25,837 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,848 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 [2019-11-19 20:08:25,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:25,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:25,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:25,853 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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,861 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 [2019-11-19 20:08:25,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:25,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:25,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:25,867 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) [2019-11-19 20:08:25,879 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 [2019-11-19 20:08:25,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:25,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:25,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,890 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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,903 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 [2019-11-19 20:08:25,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:25,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:25,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:25,908 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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,921 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 [2019-11-19 20:08:25,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,926 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:25,926 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:25,929 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 [2019-11-19 20:08:25,937 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 [2019-11-19 20:08:25,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,950 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:25,950 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:25,966 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:08:26,008 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-19 20:08:26,008 INFO L444 ModelExtractionUtils]: 16 out of 31 variables were initially zero. Simplification set additionally 10 variables to zero. 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) [2019-11-19 20:08:26,021 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:26,024 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 20:08:26,025 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:08:26,025 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~s~0.offset) = -2*ULTIMATE.start_cstrlen_~s~0.offset + 3 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 + 2 >= 0] [2019-11-19 20:08:26,050 INFO L297 tatePredicateManager]: 4 out of 6 supporting invariants were superfluous and have been removed [2019-11-19 20:08:26,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:26,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-19 20:08:26,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:26,153 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-19 20:08:26,153 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:08:26,159 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:26,160 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 20:08:26,160 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-11-19 20:08:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:26,222 WARN L253 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-19 20:08:26,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:26,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:26,242 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2019-11-19 20:08:26,242 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 6 states. [2019-11-19 20:08:26,353 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 6 states. Result 23 states and 27 transitions. Complement of second has 9 states. [2019-11-19 20:08:26,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2019-11-19 20:08:26,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-19 20:08:26,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 18 transitions. [2019-11-19 20:08:26,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 18 transitions. Stem has 8 letters. Loop has 3 letters. [2019-11-19 20:08:26,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:26,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 18 transitions. Stem has 11 letters. Loop has 3 letters. [2019-11-19 20:08:26,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:26,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 18 transitions. Stem has 8 letters. Loop has 6 letters. [2019-11-19 20:08:26,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:26,356 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 27 transitions. [2019-11-19 20:08:26,357 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:26,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 16 states and 18 transitions. [2019-11-19 20:08:26,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-19 20:08:26,358 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-19 20:08:26,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 18 transitions. [2019-11-19 20:08:26,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:26,359 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-19 20:08:26,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 18 transitions. [2019-11-19 20:08:26,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2019-11-19 20:08:26,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-19 20:08:26,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-11-19 20:08:26,361 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-19 20:08:26,361 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-19 20:08:26,361 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 20:08:26,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2019-11-19 20:08:26,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:26,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:26,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:26,362 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:26,363 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:08:26,363 INFO L794 eck$LassoCheckResult]: Stem: 285#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 281#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 282#L524 assume !(main_~length1~0 < 1); 292#L524-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 288#L528-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 283#L528-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 284#L528-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 289#L528-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 293#L528-3 assume !(main_~i~0 < main_~length1~0 - 1); 291#L528-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~str.base, cstrlen_#in~str.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 287#L518-4 [2019-11-19 20:08:26,363 INFO L796 eck$LassoCheckResult]: Loop: 287#L518-4 call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 290#L518-1 assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 286#L518-3 cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 287#L518-4 [2019-11-19 20:08:26,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:26,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1899756335, now seen corresponding path program 2 times [2019-11-19 20:08:26,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:26,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145885212] [2019-11-19 20:08:26,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,388 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:26,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:26,389 INFO L82 PathProgramCache]: Analyzing trace with hash 56764, now seen corresponding path program 3 times [2019-11-19 20:08:26,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:26,389 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228707767] [2019-11-19 20:08:26,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,397 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:26,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:26,397 INFO L82 PathProgramCache]: Analyzing trace with hash -856889620, now seen corresponding path program 2 times [2019-11-19 20:08:26,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:26,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871272389] [2019-11-19 20:08:26,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,427 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:26,724 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-11-19 20:08:26,811 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:08:26,811 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:08:26,811 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:08:26,811 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:08:26,811 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:08:26,812 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:26,812 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:08:26,812 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:08:26,812 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrlen-alloca-1.i_Iteration4_Lasso [2019-11-19 20:08:26,812 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:08:26,812 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:08:26,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:27,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:27,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:27,355 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:08:27,355 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,366 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 [2019-11-19 20:08:27,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:27,371 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 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 [2019-11-19 20:08:27,389 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 [2019-11-19 20:08:27,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,392 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:27,394 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 [2019-11-19 20:08:27,401 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 [2019-11-19 20:08:27,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,405 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:27,405 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:27,408 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) [2019-11-19 20:08:27,419 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:27,425 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 [2019-11-19 20:08:27,433 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 [2019-11-19 20:08:27,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,437 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:27,437 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:27,442 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) [2019-11-19 20:08:27,449 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 [2019-11-19 20:08:27,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:27,463 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) [2019-11-19 20:08:27,471 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 [2019-11-19 20:08:27,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,477 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:27,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,482 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 [2019-11-19 20:08:27,488 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 [2019-11-19 20:08:27,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:27,493 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 [2019-11-19 20:08:27,499 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 [2019-11-19 20:08:27,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,502 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:27,503 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 [2019-11-19 20:08:27,507 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 [2019-11-19 20:08:27,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:27,511 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) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,517 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 [2019-11-19 20:08:27,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:27,521 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) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,527 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 [2019-11-19 20:08:27,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:27,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:27,545 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) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,557 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 [2019-11-19 20:08:27,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,559 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-19 20:08:27,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,564 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-19 20:08:27,565 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:27,575 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) [2019-11-19 20:08:27,581 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 [2019-11-19 20:08:27,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:27,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,607 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:08:27,624 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-19 20:08:27,624 INFO L444 ModelExtractionUtils]: 23 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,644 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,657 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 20:08:27,657 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:08:27,657 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc5.base)_3, ULTIMATE.start_cstrlen_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc5.base)_3 - 1*ULTIMATE.start_cstrlen_~s~0.offset Supporting invariants [] [2019-11-19 20:08:27,666 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-11-19 20:08:27,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 20:08:27,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:27,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 20:08:27,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:27,731 WARN L253 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 20:08:27,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:27,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:27,744 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 [2019-11-19 20:08:27,744 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4 Second operand 4 states. [2019-11-19 20:08:27,783 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 16 states and 19 transitions. Complement of second has 5 states. [2019-11-19 20:08:27,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 20:08:27,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 20:08:27,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-11-19 20:08:27,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-19 20:08:27,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:27,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 13 letters. Loop has 3 letters. [2019-11-19 20:08:27,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:27,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 6 letters. [2019-11-19 20:08:27,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:27,785 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2019-11-19 20:08:27,787 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 20:08:27,787 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2019-11-19 20:08:27,787 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 20:08:27,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 20:08:27,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 20:08:27,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:27,787 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:08:27,787 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:08:27,788 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:08:27,788 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 20:08:27,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 20:08:27,788 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 20:08:27,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 20:08:27,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:08:27 BoogieIcfgContainer [2019-11-19 20:08:27,793 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:08:27,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:08:27,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:08:27,794 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:08:27,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:22" (3/4) ... [2019-11-19 20:08:27,797 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 20:08:27,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:08:27,798 INFO L168 Benchmark]: Toolchain (without parser) took 6134.44 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 299.4 MB). Free memory was 956.3 MB in the beginning and 1.3 GB in the end (delta: -310.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:08:27,799 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:08:27,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:27,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:27,801 INFO L168 Benchmark]: Boogie Preprocessor took 28.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:27,802 INFO L168 Benchmark]: RCFGBuilder took 333.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:27,802 INFO L168 Benchmark]: BuchiAutomizer took 5164.70 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.6 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -173.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:08:27,803 INFO L168 Benchmark]: Witness Printer took 3.56 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:08:27,807 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 555.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 333.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5164.70 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.6 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -173.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.56 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -2 * s + 3 and consists of 7 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * s and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.1s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 33 SDtfs, 57 SDslu, 41 SDs, 0 SdLazy, 70 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital119 mio100 ax115 hnf99 lsp81 ukn84 mio100 lsp56 div100 bol100 ite100 ukn100 eq176 hnf89 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 6 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...