./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb6ff0b2d9abd29a15d3eb2d5a86a23b460e9725 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 06:02:41,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 06:02:41,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 06:02:41,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 06:02:41,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 06:02:41,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 06:02:41,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 06:02:41,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 06:02:41,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 06:02:41,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 06:02:41,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 06:02:41,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 06:02:41,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 06:02:41,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 06:02:41,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 06:02:41,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 06:02:41,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 06:02:41,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 06:02:41,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 06:02:41,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 06:02:41,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 06:02:41,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 06:02:41,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 06:02:41,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 06:02:41,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 06:02:41,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 06:02:41,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 06:02:41,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 06:02:41,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 06:02:41,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 06:02:41,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 06:02:41,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 06:02:41,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 06:02:41,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 06:02:41,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 06:02:41,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 06:02:41,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 06:02:41,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 06:02:41,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 06:02:41,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 06:02:41,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 06:02:41,459 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 06:02:41,495 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 06:02:41,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 06:02:41,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 06:02:41,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 06:02:41,498 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 06:02:41,499 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 06:02:41,499 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 06:02:41,499 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 06:02:41,500 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 06:02:41,500 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 06:02:41,500 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 06:02:41,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 06:02:41,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 06:02:41,501 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 06:02:41,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 06:02:41,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 06:02:41,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 06:02:41,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 06:02:41,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 06:02:41,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 06:02:41,503 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 06:02:41,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 06:02:41,503 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 06:02:41,504 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 06:02:41,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 06:02:41,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 06:02:41,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 06:02:41,505 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 06:02:41,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 06:02:41,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 06:02:41,506 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 06:02:41,506 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 06:02:41,508 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 06:02:41,508 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb6ff0b2d9abd29a15d3eb2d5a86a23b460e9725 [2020-10-26 06:02:41,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 06:02:42,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 06:02:42,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 06:02:42,006 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 06:02:42,009 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 06:02:42,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i [2020-10-26 06:02:42,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae85b763/5058339e6a504d16a8e6bda96a2769e0/FLAG5c6be2b55 [2020-10-26 06:02:42,889 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 06:02:42,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i [2020-10-26 06:02:42,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae85b763/5058339e6a504d16a8e6bda96a2769e0/FLAG5c6be2b55 [2020-10-26 06:02:43,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae85b763/5058339e6a504d16a8e6bda96a2769e0 [2020-10-26 06:02:43,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 06:02:43,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 06:02:43,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 06:02:43,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 06:02:43,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 06:02:43,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:02:43" (1/1) ... [2020-10-26 06:02:43,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6534da04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43, skipping insertion in model container [2020-10-26 06:02:43,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:02:43" (1/1) ... [2020-10-26 06:02:43,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 06:02:43,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 06:02:43,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:02:43,608 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 06:02:43,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:02:43,746 INFO L208 MainTranslator]: Completed translation [2020-10-26 06:02:43,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43 WrapperNode [2020-10-26 06:02:43,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 06:02:43,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 06:02:43,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 06:02:43,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 06:02:43,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43" (1/1) ... [2020-10-26 06:02:43,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43" (1/1) ... [2020-10-26 06:02:43,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 06:02:43,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 06:02:43,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 06:02:43,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 06:02:43,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43" (1/1) ... [2020-10-26 06:02:43,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43" (1/1) ... [2020-10-26 06:02:43,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43" (1/1) ... [2020-10-26 06:02:43,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43" (1/1) ... [2020-10-26 06:02:43,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43" (1/1) ... [2020-10-26 06:02:43,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43" (1/1) ... [2020-10-26 06:02:43,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43" (1/1) ... [2020-10-26 06:02:43,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 06:02:43,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 06:02:43,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 06:02:43,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 06:02:43,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 06:02:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 06:02:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 06:02:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 06:02:43,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 06:02:43,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 06:02:44,416 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 06:02:44,417 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-26 06:02:44,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:44 BoogieIcfgContainer [2020-10-26 06:02:44,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 06:02:44,422 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 06:02:44,423 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 06:02:44,427 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 06:02:44,428 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:44,429 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 06:02:43" (1/3) ... [2020-10-26 06:02:44,430 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4060e73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:02:44, skipping insertion in model container [2020-10-26 06:02:44,430 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:44,431 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:43" (2/3) ... [2020-10-26 06:02:44,431 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4060e73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:02:44, skipping insertion in model container [2020-10-26 06:02:44,431 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:44,432 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:44" (3/3) ... [2020-10-26 06:02:44,435 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcat-alloca-2.i [2020-10-26 06:02:44,515 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 06:02:44,515 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 06:02:44,515 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 06:02:44,516 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 06:02:44,516 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 06:02:44,516 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 06:02:44,516 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 06:02:44,517 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 06:02:44,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2020-10-26 06:02:44,566 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 9 [2020-10-26 06:02:44,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:44,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:44,575 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-26 06:02:44,575 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:44,576 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 06:02:44,576 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2020-10-26 06:02:44,582 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 9 [2020-10-26 06:02:44,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:44,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:44,583 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-26 06:02:44,584 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:44,594 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 13#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 7#L525true assume !(main_~length1~0 < 1); 12#L525-2true assume !(main_~length2~0 < 2); 24#L528-1true assume !(main_~length3~0 < 1); 15#L531-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 9#L538-3true [2020-10-26 06:02:44,594 INFO L796 eck$LassoCheckResult]: Loop: 9#L538-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet13, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet13; 6#L538-2true main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 9#L538-3true [2020-10-26 06:02:44,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:44,605 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2020-10-26 06:02:44,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:44,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651363253] [2020-10-26 06:02:44,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:44,789 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:44,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:44,875 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:44,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:44,881 INFO L82 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2020-10-26 06:02:44,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:44,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969006838] [2020-10-26 06:02:44,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:44,910 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:44,927 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:44,930 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:44,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:44,932 INFO L82 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2020-10-26 06:02:44,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:44,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121487132] [2020-10-26 06:02:44,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:44,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:45,038 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:45,046 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:45,325 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-26 06:02:45,443 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:45,444 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:45,444 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:45,444 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:45,444 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:45,445 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:45,445 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:45,445 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:45,445 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcat-alloca-2.i_Iteration1_Lasso [2020-10-26 06:02:45,446 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:45,446 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:45,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,667 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-10-26 06:02:45,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:46,051 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:46,057 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:46,067 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:46,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:46,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:46,082 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:46,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:46,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:46,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:46,128 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:46,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:46,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:46,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:46,174 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) [2020-10-26 06:02:46,215 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,222 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:46,223 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:46,229 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) [2020-10-26 06:02:46,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:46,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:46,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:46,277 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) [2020-10-26 06:02:46,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:46,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:46,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:46,331 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:46,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:46,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:46,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:46,382 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 [2020-10-26 06:02:46,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:46,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,414 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:46,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:46,419 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:46,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:46,466 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:46,470 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:46,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:46,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:46,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:46,509 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:46,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:46,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,556 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:46,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:46,559 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:46,597 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,605 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:46,606 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:46,614 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 [2020-10-26 06:02:46,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:46,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:46,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:46,652 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 [2020-10-26 06:02:46,680 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:46,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:46,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:46,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:46,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:46,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:46,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:46,717 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:46,789 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-26 06:02:46,790 INFO L444 ModelExtractionUtils]: 26 out of 31 variables were initially zero. Simplification set additionally 2 variables to zero. 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) [2020-10-26 06:02:46,865 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:46,905 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:02:46,906 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:46,907 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 [] [2020-10-26 06:02:47,019 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-26 06:02:47,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:47,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 06:02:47,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:47,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:02:47,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:47,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:47,138 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-26 06:02:47,140 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 3 states. [2020-10-26 06:02:47,204 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 3 states. Result 55 states and 77 transitions. Complement of second has 7 states. [2020-10-26 06:02:47,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 06:02:47,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 06:02:47,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2020-10-26 06:02:47,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 54 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-26 06:02:47,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:47,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 54 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-26 06:02:47,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:47,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 54 transitions. Stem has 6 letters. Loop has 4 letters. [2020-10-26 06:02:47,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:47,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 77 transitions. [2020-10-26 06:02:47,220 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-26 06:02:47,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 18 states and 25 transitions. [2020-10-26 06:02:47,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-10-26 06:02:47,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-10-26 06:02:47,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2020-10-26 06:02:47,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:47,228 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-26 06:02:47,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2020-10-26 06:02:47,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-26 06:02:47,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-26 06:02:47,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-10-26 06:02:47,261 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-26 06:02:47,261 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-26 06:02:47,261 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 06:02:47,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2020-10-26 06:02:47,262 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-26 06:02:47,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:47,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:47,263 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:47,263 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:47,264 INFO L794 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 165#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 158#L525 assume !(main_~length1~0 < 1); 159#L525-2 assume !(main_~length2~0 < 2); 164#L528-1 assume !(main_~length3~0 < 1); 167#L531-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 161#L538-3 assume !(main_~i~0 < main_~length1~0 - 1); 162#L538-4 main_~i~1 := 0; 163#L542-3 [2020-10-26 06:02:47,264 INFO L796 eck$LassoCheckResult]: Loop: 163#L542-3 assume !!(main_~i~1 < main_~length3~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 168#L542-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 163#L542-3 [2020-10-26 06:02:47,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:47,265 INFO L82 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2020-10-26 06:02:47,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:47,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115548052] [2020-10-26 06:02:47,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:47,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:47,290 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:47,297 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:47,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:47,298 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2020-10-26 06:02:47,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:47,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156623095] [2020-10-26 06:02:47,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:47,310 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:47,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:47,323 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:47,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:47,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495129, now seen corresponding path program 1 times [2020-10-26 06:02:47,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:47,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724811485] [2020-10-26 06:02:47,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:47,353 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:47,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:47,399 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:47,683 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-26 06:02:47,778 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:47,778 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:47,778 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:47,779 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:47,779 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:47,779 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:47,779 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:47,779 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:47,779 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcat-alloca-2.i_Iteration2_Lasso [2020-10-26 06:02:47,780 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:47,780 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:47,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:47,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:47,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:47,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:47,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:47,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:47,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:47,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:47,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:47,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:47,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:47,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:48,026 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-10-26 06:02:48,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:48,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:48,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:48,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:48,286 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2020-10-26 06:02:48,548 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:48,551 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-26 06:02:48,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:48,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:48,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:48,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:48,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:48,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:48,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:48,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:48,566 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:48,607 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:48,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:48,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:48,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:48,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:48,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:48,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:48,618 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) [2020-10-26 06:02:48,659 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:48,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:48,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:48,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:48,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:48,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:48,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:48,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:48,664 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) [2020-10-26 06:02:48,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:48,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:48,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:48,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:48,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:48,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:48,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:48,723 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:48,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:48,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:48,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:48,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:48,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:48,774 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:48,774 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:48,786 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:48,818 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:48,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:48,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:48,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:48,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:48,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:48,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:48,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:48,824 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:48,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:48,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:48,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:48,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:48,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:48,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:48,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:48,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:48,859 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) [2020-10-26 06:02:48,897 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:48,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:48,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:48,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:48,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:48,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:48,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:48,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:48,906 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) [2020-10-26 06:02:48,943 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:48,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:48,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:48,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:48,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:48,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:48,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:48,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:48,949 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:48,981 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:48,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:48,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:48,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:48,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:48,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:48,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:49,002 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) [2020-10-26 06:02:49,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:49,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:49,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:49,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:49,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:49,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:49,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:49,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:49,046 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:49,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:49,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:49,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:49,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:49,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:49,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:49,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:49,097 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:49,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:49,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:49,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:49,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:49,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:49,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:49,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:49,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:49,138 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:49,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:49,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:49,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:49,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:49,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:49,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:49,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:49,201 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:49,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:49,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:49,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:49,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:49,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:49,253 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:49,253 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 [2020-10-26 06:02:49,277 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:49,312 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-10-26 06:02:49,313 INFO L444 ModelExtractionUtils]: 21 out of 34 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:49,319 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 [2020-10-26 06:02:49,322 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:02:49,323 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:49,323 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length3~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length3~0 Supporting invariants [] [2020-10-26 06:02:49,377 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-26 06:02:49,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:49,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 06:02:49,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:49,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:02:49,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:49,462 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-26 06:02:49,463 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand 3 states. [2020-10-26 06:02:49,490 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 26 states and 38 transitions. Complement of second has 6 states. [2020-10-26 06:02:49,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 06:02:49,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 06:02:49,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-10-26 06:02:49,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-26 06:02:49,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:49,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-26 06:02:49,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:49,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-26 06:02:49,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:49,495 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 38 transitions. [2020-10-26 06:02:49,497 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-26 06:02:49,500 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 19 states and 27 transitions. [2020-10-26 06:02:49,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-26 06:02:49,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-26 06:02:49,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 27 transitions. [2020-10-26 06:02:49,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:49,502 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2020-10-26 06:02:49,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 27 transitions. [2020-10-26 06:02:49,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-26 06:02:49,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-26 06:02:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2020-10-26 06:02:49,506 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2020-10-26 06:02:49,506 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2020-10-26 06:02:49,507 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 06:02:49,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2020-10-26 06:02:49,510 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-26 06:02:49,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:49,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:49,511 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:49,511 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 06:02:49,511 INFO L794 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 286#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 279#L525 assume !(main_~length1~0 < 1); 280#L525-2 assume !(main_~length2~0 < 2); 285#L528-1 assume !(main_~length3~0 < 1); 288#L531-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 282#L538-3 assume !(main_~i~0 < main_~length1~0 - 1); 283#L538-4 main_~i~1 := 0; 284#L542-3 assume !(main_~i~1 < main_~length3~0 - 1); 291#L542-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s.base, cstrcat_#in~s.offset, cstrcat_#in~append.base, cstrcat_#in~append.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset, cstrcat_#t~mem3, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s.base, cstrcat_~s.offset, cstrcat_~append.base, cstrcat_~append.offset, cstrcat_~save~0.base, cstrcat_~save~0.offset;cstrcat_~s.base, cstrcat_~s.offset := cstrcat_#in~s.base, cstrcat_#in~s.offset;cstrcat_~append.base, cstrcat_~append.offset := cstrcat_#in~append.base, cstrcat_#in~append.offset;cstrcat_~save~0.base, cstrcat_~save~0.offset := cstrcat_~s.base, cstrcat_~s.offset; 281#L517-4 [2020-10-26 06:02:49,511 INFO L796 eck$LassoCheckResult]: Loop: 281#L517-4 call cstrcat_#t~mem3 := read~int(cstrcat_~s.base, cstrcat_~s.offset, 1); 273#L517-1 assume !!(0 != cstrcat_#t~mem3);havoc cstrcat_#t~mem3; 275#L517-3 cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset := cstrcat_~s.base, 1 + cstrcat_~s.offset;cstrcat_~s.base, cstrcat_~s.offset := cstrcat_~s.base, 1 + cstrcat_~s.offset;havoc cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset; 281#L517-4 [2020-10-26 06:02:49,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:49,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495071, now seen corresponding path program 1 times [2020-10-26 06:02:49,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:49,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933265757] [2020-10-26 06:02:49,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:49,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:49,581 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:49,594 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:49,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:49,595 INFO L82 PathProgramCache]: Analyzing trace with hash 86554, now seen corresponding path program 1 times [2020-10-26 06:02:49,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:49,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487588985] [2020-10-26 06:02:49,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:49,607 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:49,612 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:49,615 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:49,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:49,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1045403964, now seen corresponding path program 1 times [2020-10-26 06:02:49,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:49,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286934522] [2020-10-26 06:02:49,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:49,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:49,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286934522] [2020-10-26 06:02:49,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:02:49,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 06:02:49,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849719050] [2020-10-26 06:02:49,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:02:49,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 06:02:49,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 06:02:49,933 INFO L87 Difference]: Start difference. First operand 19 states and 27 transitions. cyclomatic complexity: 12 Second operand 8 states. [2020-10-26 06:02:50,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:02:50,067 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2020-10-26 06:02:50,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 06:02:50,068 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 34 transitions. [2020-10-26 06:02:50,070 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-26 06:02:50,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 34 transitions. [2020-10-26 06:02:50,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-26 06:02:50,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-10-26 06:02:50,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2020-10-26 06:02:50,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:50,071 INFO L691 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2020-10-26 06:02:50,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2020-10-26 06:02:50,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2020-10-26 06:02:50,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-26 06:02:50,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-26 06:02:50,075 INFO L714 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-26 06:02:50,075 INFO L594 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-26 06:02:50,075 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 06:02:50,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 30 transitions. [2020-10-26 06:02:50,076 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-26 06:02:50,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:50,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:50,077 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:50,077 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:50,078 INFO L794 eck$LassoCheckResult]: Stem: 350#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 349#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 340#L525 assume !(main_~length1~0 < 1); 341#L525-2 assume !(main_~length2~0 < 2); 348#L528-1 assume !(main_~length3~0 < 1); 351#L531-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 344#L538-3 assume !(main_~i~0 < main_~length1~0 - 1); 345#L538-4 main_~i~1 := 0; 347#L542-3 assume !(main_~i~1 < main_~length3~0 - 1); 354#L542-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s.base, cstrcat_#in~s.offset, cstrcat_#in~append.base, cstrcat_#in~append.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset, cstrcat_#t~mem3, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s.base, cstrcat_~s.offset, cstrcat_~append.base, cstrcat_~append.offset, cstrcat_~save~0.base, cstrcat_~save~0.offset;cstrcat_~s.base, cstrcat_~s.offset := cstrcat_#in~s.base, cstrcat_#in~s.offset;cstrcat_~append.base, cstrcat_~append.offset := cstrcat_#in~append.base, cstrcat_#in~append.offset;cstrcat_~save~0.base, cstrcat_~save~0.offset := cstrcat_~s.base, cstrcat_~s.offset; 346#L517-4 call cstrcat_#t~mem3 := read~int(cstrcat_~s.base, cstrcat_~s.offset, 1); 335#L517-1 assume !(0 != cstrcat_#t~mem3);havoc cstrcat_#t~mem3; 336#L518-2 [2020-10-26 06:02:50,078 INFO L796 eck$LassoCheckResult]: Loop: 336#L518-2 cstrcat_#t~post4.base, cstrcat_#t~post4.offset := cstrcat_~s.base, cstrcat_~s.offset;cstrcat_~s.base, cstrcat_~s.offset := cstrcat_#t~post4.base, 1 + cstrcat_#t~post4.offset;cstrcat_#t~post5.base, cstrcat_#t~post5.offset := cstrcat_~append.base, cstrcat_~append.offset;cstrcat_~append.base, cstrcat_~append.offset := cstrcat_#t~post5.base, 1 + cstrcat_#t~post5.offset;call cstrcat_#t~mem6 := read~int(cstrcat_#t~post5.base, cstrcat_#t~post5.offset, 1);call write~int(cstrcat_#t~mem6, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, 1); 337#L518 assume !!(0 != cstrcat_#t~mem6);havoc cstrcat_#t~post4.base, cstrcat_#t~post4.offset;havoc cstrcat_#t~mem6;havoc cstrcat_#t~post5.base, cstrcat_#t~post5.offset; 336#L518-2 [2020-10-26 06:02:50,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:50,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1696290690, now seen corresponding path program 1 times [2020-10-26 06:02:50,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:50,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843972638] [2020-10-26 06:02:50,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:50,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:50,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:50,116 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:50,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:50,117 INFO L82 PathProgramCache]: Analyzing trace with hash 3238, now seen corresponding path program 1 times [2020-10-26 06:02:50,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:50,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558899806] [2020-10-26 06:02:50,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:50,123 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:50,128 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:50,130 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:50,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:50,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1952217113, now seen corresponding path program 1 times [2020-10-26 06:02:50,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:50,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066101573] [2020-10-26 06:02:50,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:50,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:50,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066101573] [2020-10-26 06:02:50,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:02:50,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 06:02:50,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117335648] [2020-10-26 06:02:50,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:02:50,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 06:02:50,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 06:02:50,411 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. cyclomatic complexity: 12 Second operand 7 states. [2020-10-26 06:02:50,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:02:50,523 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2020-10-26 06:02:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 06:02:50,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 46 transitions. [2020-10-26 06:02:50,526 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-10-26 06:02:50,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 31 states and 40 transitions. [2020-10-26 06:02:50,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-10-26 06:02:50,528 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-10-26 06:02:50,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2020-10-26 06:02:50,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:50,529 INFO L691 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2020-10-26 06:02:50,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2020-10-26 06:02:50,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2020-10-26 06:02:50,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-26 06:02:50,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2020-10-26 06:02:50,532 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-10-26 06:02:50,532 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-10-26 06:02:50,532 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-26 06:02:50,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2020-10-26 06:02:50,533 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-10-26 06:02:50,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:50,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:50,534 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:50,534 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 06:02:50,534 INFO L794 eck$LassoCheckResult]: Stem: 427#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 426#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 415#L525 assume !(main_~length1~0 < 1); 416#L525-2 assume !(main_~length2~0 < 2); 425#L528-1 assume !(main_~length3~0 < 1); 428#L531-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 419#L538-3 assume !(main_~i~0 < main_~length1~0 - 1); 420#L538-4 main_~i~1 := 0; 438#L542-3 assume !!(main_~i~1 < main_~length3~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 436#L542-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 435#L542-3 assume !(main_~i~1 < main_~length3~0 - 1); 434#L542-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s.base, cstrcat_#in~s.offset, cstrcat_#in~append.base, cstrcat_#in~append.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset, cstrcat_#t~mem3, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s.base, cstrcat_~s.offset, cstrcat_~append.base, cstrcat_~append.offset, cstrcat_~save~0.base, cstrcat_~save~0.offset;cstrcat_~s.base, cstrcat_~s.offset := cstrcat_#in~s.base, cstrcat_#in~s.offset;cstrcat_~append.base, cstrcat_~append.offset := cstrcat_#in~append.base, cstrcat_#in~append.offset;cstrcat_~save~0.base, cstrcat_~save~0.offset := cstrcat_~s.base, cstrcat_~s.offset; 433#L517-4 [2020-10-26 06:02:50,534 INFO L796 eck$LassoCheckResult]: Loop: 433#L517-4 call cstrcat_#t~mem3 := read~int(cstrcat_~s.base, cstrcat_~s.offset, 1); 409#L517-1 assume !!(0 != cstrcat_#t~mem3);havoc cstrcat_#t~mem3; 410#L517-3 cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset := cstrcat_~s.base, 1 + cstrcat_~s.offset;cstrcat_~s.base, cstrcat_~s.offset := cstrcat_~s.base, 1 + cstrcat_~s.offset;havoc cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset; 433#L517-4 [2020-10-26 06:02:50,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:50,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1696346049, now seen corresponding path program 1 times [2020-10-26 06:02:50,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:50,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155236530] [2020-10-26 06:02:50,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:50,550 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:50,560 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:50,565 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:50,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:50,566 INFO L82 PathProgramCache]: Analyzing trace with hash 86554, now seen corresponding path program 2 times [2020-10-26 06:02:50,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:50,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353947897] [2020-10-26 06:02:50,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:50,573 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:50,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:50,577 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:50,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:50,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1259997786, now seen corresponding path program 1 times [2020-10-26 06:02:50,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:50,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432387205] [2020-10-26 06:02:50,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:50,612 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:50,625 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:50,630 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:51,253 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 110 [2020-10-26 06:02:51,481 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-26 06:02:51,484 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:51,484 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:51,484 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:51,484 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:51,485 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:51,485 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:51,485 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:51,485 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:51,485 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcat-alloca-2.i_Iteration5_Lasso [2020-10-26 06:02:51,485 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:51,485 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:51,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:51,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:52,053 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2020-10-26 06:02:52,176 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-10-26 06:02:52,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:52,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:52,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:52,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:52,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:52,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:52,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:52,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:52,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:52,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:52,511 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-10-26 06:02:52,882 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-26 06:02:53,096 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:53,097 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:53,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:53,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:53,139 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:53,144 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:53,172 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,196 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:53,200 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:53,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:53,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,255 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:53,281 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,311 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:53,311 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:53,315 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 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:53,356 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 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:53,385 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 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:53,420 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 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:53,449 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 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:53,476 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 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:53,505 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 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:53,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:53,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:53,533 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 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:53,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:53,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:53,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:53,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:53,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:53,575 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:53,606 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:53,678 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-10-26 06:02:53,678 INFO L444 ModelExtractionUtils]: 11 out of 55 variables were initially zero. Simplification set additionally 41 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:53,682 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 06:02:53,686 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:02:53,686 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:53,686 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_3, ULTIMATE.start_cstrcat_~s.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_3 - 1*ULTIMATE.start_cstrcat_~s.offset Supporting invariants [] [2020-10-26 06:02:53,765 INFO L297 tatePredicateManager]: 13 out of 14 supporting invariants were superfluous and have been removed [2020-10-26 06:02:53,774 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:02:53,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:53,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 06:02:53,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:53,880 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 06:02:53,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:53,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:53,906 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-26 06:02:53,907 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15 Second operand 4 states. [2020-10-26 06:02:53,969 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 40 states and 52 transitions. Complement of second has 7 states. [2020-10-26 06:02:53,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 06:02:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 06:02:53,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2020-10-26 06:02:53,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 12 letters. Loop has 3 letters. [2020-10-26 06:02:53,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:53,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 15 letters. Loop has 3 letters. [2020-10-26 06:02:53,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:53,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 12 letters. Loop has 6 letters. [2020-10-26 06:02:53,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:53,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 52 transitions. [2020-10-26 06:02:53,977 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 06:02:53,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2020-10-26 06:02:53,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 06:02:53,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 06:02:53,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 06:02:53,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:53,978 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:02:53,978 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:02:53,978 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:02:53,978 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-26 06:02:53,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 06:02:53,979 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 06:02:53,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 06:02:53,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 06:02:53 BoogieIcfgContainer [2020-10-26 06:02:53,986 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 06:02:53,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 06:02:53,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 06:02:53,990 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 06:02:53,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:44" (3/4) ... [2020-10-26 06:02:53,995 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 06:02:53,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 06:02:53,997 INFO L168 Benchmark]: Toolchain (without parser) took 10868.48 ms. Allocated memory was 46.1 MB in the beginning and 123.7 MB in the end (delta: 77.6 MB). Free memory was 22.0 MB in the beginning and 52.6 MB in the end (delta: -30.6 MB). Peak memory consumption was 47.3 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:53,998 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 46.1 MB. Free memory was 30.4 MB in the beginning and 30.3 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:02:53,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.64 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.4 MB in the beginning and 31.0 MB in the end (delta: -9.6 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:54,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.83 ms. Allocated memory is still 56.6 MB. Free memory was 30.8 MB in the beginning and 29.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:02:54,000 INFO L168 Benchmark]: Boogie Preprocessor took 34.67 ms. Allocated memory is still 56.6 MB. Free memory was 29.0 MB in the beginning and 27.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:02:54,001 INFO L168 Benchmark]: RCFGBuilder took 580.42 ms. Allocated memory is still 56.6 MB. Free memory was 27.6 MB in the beginning and 36.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:54,002 INFO L168 Benchmark]: BuchiAutomizer took 9564.21 ms. Allocated memory was 56.6 MB in the beginning and 123.7 MB in the end (delta: 67.1 MB). Free memory was 36.7 MB in the beginning and 52.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 49.8 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:54,002 INFO L168 Benchmark]: Witness Printer took 6.04 ms. Allocated memory is still 123.7 MB. Free memory is still 52.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:02:54,006 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 46.1 MB. Free memory was 30.4 MB in the beginning and 30.3 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 609.64 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.4 MB in the beginning and 31.0 MB in the end (delta: -9.6 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.83 ms. Allocated memory is still 56.6 MB. Free memory was 30.8 MB in the beginning and 29.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.67 ms. Allocated memory is still 56.6 MB. Free memory was 29.0 MB in the beginning and 27.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 580.42 ms. Allocated memory is still 56.6 MB. Free memory was 27.6 MB in the beginning and 36.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 9564.21 ms. Allocated memory was 56.6 MB in the beginning and 123.7 MB in the end (delta: 67.1 MB). Free memory was 36.7 MB in the beginning and 52.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 49.8 MB. Max. memory is 16.1 GB. * Witness Printer took 6.04 ms. Allocated memory is still 123.7 MB. Free memory is still 52.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 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 -1 * i + length3 and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * s and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.4s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 8.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 30 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 94 SDtfs, 166 SDslu, 139 SDs, 0 SdLazy, 95 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital171 mio100 ax111 hnf98 lsp83 ukn78 mio100 lsp59 div100 bol100 ite100 ukn100 eq167 hnf91 smp97 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...