./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/cstrcspn-alloca-1.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/cstrcspn-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd713315a01a83d82c28c42f2ad6c72c3349a374 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 06:02:04,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 06:02:04,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 06:02:04,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 06:02:04,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 06:02:04,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 06:02:04,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 06:02:04,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 06:02:04,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 06:02:04,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 06:02:04,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 06:02:04,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 06:02:04,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 06:02:04,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 06:02:04,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 06:02:04,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 06:02:04,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 06:02:04,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 06:02:04,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 06:02:04,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 06:02:04,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 06:02:04,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 06:02:04,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 06:02:04,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 06:02:04,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 06:02:04,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 06:02:04,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 06:02:04,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 06:02:04,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 06:02:04,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 06:02:04,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 06:02:04,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 06:02:04,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 06:02:04,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 06:02:04,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 06:02:04,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 06:02:04,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 06:02:04,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 06:02:04,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 06:02:04,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 06:02:04,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 06:02:04,473 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 06:02:04,531 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 06:02:04,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 06:02:04,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 06:02:04,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 06:02:04,536 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 06:02:04,537 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 06:02:04,537 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 06:02:04,537 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 06:02:04,538 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 06:02:04,538 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 06:02:04,539 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 06:02:04,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 06:02:04,540 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 06:02:04,540 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 06:02:04,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 06:02:04,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 06:02:04,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 06:02:04,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 06:02:04,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 06:02:04,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 06:02:04,542 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 06:02:04,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 06:02:04,543 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 06:02:04,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 06:02:04,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 06:02:04,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 06:02:04,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 06:02:04,545 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 06:02:04,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 06:02:04,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 06:02:04,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 06:02:04,546 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 06:02:04,549 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 06:02:04,549 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd713315a01a83d82c28c42f2ad6c72c3349a374 [2020-10-26 06:02:04,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 06:02:05,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 06:02:05,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 06:02:05,013 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 06:02:05,014 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 06:02:05,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/cstrcspn-alloca-1.i [2020-10-26 06:02:05,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65e0d7323/45ca106d6e8d48199bfa709a06be5a59/FLAGeae69dbc4 [2020-10-26 06:02:05,716 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 06:02:05,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/cstrcspn-alloca-1.i [2020-10-26 06:02:05,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65e0d7323/45ca106d6e8d48199bfa709a06be5a59/FLAGeae69dbc4 [2020-10-26 06:02:06,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65e0d7323/45ca106d6e8d48199bfa709a06be5a59 [2020-10-26 06:02:06,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 06:02:06,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 06:02:06,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 06:02:06,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 06:02:06,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 06:02:06,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:02:06" (1/1) ... [2020-10-26 06:02:06,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61986e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06, skipping insertion in model container [2020-10-26 06:02:06,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:02:06" (1/1) ... [2020-10-26 06:02:06,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 06:02:06,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 06:02:06,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:02:06,575 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 06:02:06,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:02:06,729 INFO L208 MainTranslator]: Completed translation [2020-10-26 06:02:06,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06 WrapperNode [2020-10-26 06:02:06,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 06:02:06,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 06:02:06,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 06:02:06,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 06:02:06,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06" (1/1) ... [2020-10-26 06:02:06,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06" (1/1) ... [2020-10-26 06:02:06,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 06:02:06,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 06:02:06,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 06:02:06,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 06:02:06,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06" (1/1) ... [2020-10-26 06:02:06,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06" (1/1) ... [2020-10-26 06:02:06,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06" (1/1) ... [2020-10-26 06:02:06,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06" (1/1) ... [2020-10-26 06:02:06,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06" (1/1) ... [2020-10-26 06:02:06,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06" (1/1) ... [2020-10-26 06:02:06,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06" (1/1) ... [2020-10-26 06:02:06,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 06:02:06,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 06:02:06,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 06:02:06,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 06:02:06,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06" (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 06:02:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 06:02:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 06:02:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 06:02:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 06:02:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 06:02:06,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 06:02:07,326 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 06:02:07,326 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-26 06:02:07,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:07 BoogieIcfgContainer [2020-10-26 06:02:07,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 06:02:07,330 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 06:02:07,330 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 06:02:07,333 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 06:02:07,334 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:07,335 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 06:02:06" (1/3) ... [2020-10-26 06:02:07,336 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@336d72ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:02:07, skipping insertion in model container [2020-10-26 06:02:07,336 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:07,336 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:06" (2/3) ... [2020-10-26 06:02:07,337 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@336d72ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:02:07, skipping insertion in model container [2020-10-26 06:02:07,337 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:07,337 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:07" (3/3) ... [2020-10-26 06:02:07,338 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrcspn-alloca-1.i [2020-10-26 06:02:07,393 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 06:02:07,394 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 06:02:07,394 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 06:02:07,394 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 06:02:07,394 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 06:02:07,394 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 06:02:07,395 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 06:02:07,395 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 06:02:07,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2020-10-26 06:02:07,454 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2020-10-26 06:02:07,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:07,458 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:07,470 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 06:02:07,471 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:07,471 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 06:02:07,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2020-10-26 06:02:07,474 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2020-10-26 06:02:07,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:07,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:07,477 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 06:02:07,477 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:07,488 INFO L794 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 14#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 15#L532true assume !(main_~length1~0 < 1); 18#L532-2true assume !(main_~length2~0 < 1); 10#L535-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 25#L541-3true [2020-10-26 06:02:07,489 INFO L796 eck$LassoCheckResult]: Loop: 25#L541-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 22#L541-2true main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 25#L541-3true [2020-10-26 06:02:07,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:07,500 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-10-26 06:02:07,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:07,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813100360] [2020-10-26 06:02:07,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:07,665 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:07,704 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:07,735 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:07,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:07,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2020-10-26 06:02:07,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:07,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402149537] [2020-10-26 06:02:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:07,766 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:07,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:07,788 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:07,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:07,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2020-10-26 06:02:07,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:07,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026998696] [2020-10-26 06:02:07,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:07,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:07,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:07,867 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:08,139 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-10-26 06:02:08,239 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:08,240 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:08,240 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:08,240 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:08,241 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:08,241 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:08,241 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:08,241 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:08,241 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration1_Lasso [2020-10-26 06:02:08,241 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:08,242 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:08,273 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 06:02:08,283 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 06:02:08,288 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 06:02:08,292 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 06:02:08,479 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 06:02:08,484 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 06:02:08,487 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 06:02:08,490 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 06:02:08,507 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 06:02:08,514 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 06:02:08,517 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 06:02:08,519 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 06:02:08,523 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 06:02:08,528 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 06:02:08,531 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 06:02:08,865 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:08,870 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 06:02:08,888 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 06:02:08,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:08,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:08,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:08,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:08,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:08,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:08,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:08,898 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 06:02:08,936 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 06:02:08,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:08,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:08,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:08,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:08,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:08,940 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:08,940 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 06:02:08,942 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 06:02:08,981 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 06:02:08,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:08,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:08,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:08,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:08,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:08,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:08,985 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 06:02:08,987 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 06:02:09,024 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 06:02:09,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:09,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:09,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:09,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:09,031 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:09,031 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 06:02:09,037 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 06:02:09,075 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 06:02:09,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:09,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:09,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:09,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:09,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:09,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:09,085 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:09,111 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 06:02:09,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:09,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:09,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:09,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:09,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:09,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:09,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:09,118 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 06:02:09,158 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 06:02:09,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:09,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:09,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:09,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:09,171 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:09,172 INFO L402 nArgumentSynthesizer]: A total of 2 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 06:02:09,186 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:09,230 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2020-10-26 06:02:09,230 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. 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 06:02:09,240 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 06:02:09,268 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:02:09,268 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:09,269 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 06:02:09,332 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-26 06:02:09,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:09,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 06:02:09,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:09,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:02:09,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:09,509 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 06:02:09,526 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 06:02:09,528 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states. Second operand 3 states. [2020-10-26 06:02:09,590 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states.. Second operand 3 states. Result 60 states and 87 transitions. Complement of second has 7 states. [2020-10-26 06:02:09,590 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 06:02:09,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 06:02:09,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 59 transitions. [2020-10-26 06:02:09,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-26 06:02:09,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:09,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-26 06:02:09,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:09,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-26 06:02:09,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:09,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 87 transitions. [2020-10-26 06:02:09,604 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-10-26 06:02:09,608 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 20 states and 27 transitions. [2020-10-26 06:02:09,609 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-10-26 06:02:09,610 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-10-26 06:02:09,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2020-10-26 06:02:09,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:09,611 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-10-26 06:02:09,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2020-10-26 06:02:09,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-26 06:02:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-26 06:02:09,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2020-10-26 06:02:09,640 INFO L714 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-10-26 06:02:09,640 INFO L594 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-10-26 06:02:09,641 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 06:02:09,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2020-10-26 06:02:09,642 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-10-26 06:02:09,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:09,642 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:09,643 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:09,643 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:09,643 INFO L794 eck$LassoCheckResult]: Stem: 172#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 167#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 168#L532 assume !(main_~length1~0 < 1); 169#L532-2 assume !(main_~length2~0 < 1); 164#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 165#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 160#L541-4 main_~i~1 := 0; 161#L547-3 [2020-10-26 06:02:09,644 INFO L796 eck$LassoCheckResult]: Loop: 161#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 163#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 161#L547-3 [2020-10-26 06:02:09,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:09,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2020-10-26 06:02:09,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:09,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572888718] [2020-10-26 06:02:09,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:09,657 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:09,666 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:09,670 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:09,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:09,671 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2020-10-26 06:02:09,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:09,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097022671] [2020-10-26 06:02:09,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:09,679 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:09,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:09,685 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:09,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:09,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2020-10-26 06:02:09,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:09,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828276736] [2020-10-26 06:02:09,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:09,701 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:09,722 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:09,731 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:09,944 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-26 06:02:10,015 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:10,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:10,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:10,016 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:10,016 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:10,016 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:10,016 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:10,016 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:10,016 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration2_Lasso [2020-10-26 06:02:10,017 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:10,017 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:10,024 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 06:02:10,031 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 06:02:10,034 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 06:02:10,037 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 06:02:10,040 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 06:02:10,048 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 06:02:10,055 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 06:02:10,059 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 06:02:10,062 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 06:02:10,065 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 06:02:10,069 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 06:02:10,074 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 06:02:10,224 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 06:02:10,227 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 06:02:10,526 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:10,527 INFO L489 LassoAnalysis]: Using template 'affine'. 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 06:02:10,535 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 06:02:10,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:10,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:10,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:10,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:10,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:10,540 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:10,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:10,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:10,587 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 06:02:10,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:10,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:10,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:10,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:10,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:10,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:10,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:10,594 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 06:02:10,636 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 06:02:10,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:10,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:10,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:10,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:10,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:10,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:10,640 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 06:02:10,642 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 06:02:10,686 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 06:02:10,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:10,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:10,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:10,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:10,691 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:10,691 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 06:02:10,696 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:10,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:10,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:10,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:10,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:10,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:10,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:10,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:10,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:10,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:10,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:10,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:10,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:10,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:10,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:10,794 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:10,795 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:10,799 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:10,836 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 06:02:10,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:10,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:10,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:10,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:10,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:10,840 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:10,845 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:10,886 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 06:02:10,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:10,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:10,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:10,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:10,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:10,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:10,889 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 06:02:10,891 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 06:02:10,932 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 06:02:10,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:10,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:10,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:10,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:10,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:10,937 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:10,941 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:10,979 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 06:02:10,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:10,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:10,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:10,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:10,984 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:10,984 INFO L402 nArgumentSynthesizer]: A total of 2 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 06:02:10,989 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 06:02:11,028 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 06:02:11,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:11,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:11,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:11,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:11,033 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:11,033 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 06:02:11,038 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) [2020-10-26 06:02:11,079 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 06:02:11,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:11,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:11,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:11,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:11,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:11,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:11,092 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 06:02:11,123 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 06:02:11,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:11,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:11,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:11,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:11,137 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:11,137 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:11,171 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:11,217 INFO L443 ModelExtractionUtils]: Simplification made 24 calls to the SMT solver. [2020-10-26 06:02:11,217 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. 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) [2020-10-26 06:02:11,221 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:11,224 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-26 06:02:11,224 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:11,224 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2) = -1*ULTIMATE.start_main_~i~1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2 Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0.offset >= 0] [2020-10-26 06:02:11,276 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2020-10-26 06:02:11,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:02:11,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:11,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-26 06:02:11,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:11,375 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 06:02:11,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:11,401 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 06:02:11,402 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 06:02:11,402 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand 4 states. [2020-10-26 06:02:11,483 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 31 states and 44 transitions. Complement of second has 7 states. [2020-10-26 06:02:11,484 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 06:02:11,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 06:02:11,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2020-10-26 06:02:11,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-26 06:02:11,485 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:11,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-26 06:02:11,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:11,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-26 06:02:11,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:11,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 44 transitions. [2020-10-26 06:02:11,488 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-26 06:02:11,489 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 29 transitions. [2020-10-26 06:02:11,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-10-26 06:02:11,490 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-10-26 06:02:11,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 29 transitions. [2020-10-26 06:02:11,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:11,491 INFO L691 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2020-10-26 06:02:11,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 29 transitions. [2020-10-26 06:02:11,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-26 06:02:11,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-26 06:02:11,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2020-10-26 06:02:11,494 INFO L714 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2020-10-26 06:02:11,494 INFO L594 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2020-10-26 06:02:11,494 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 06:02:11,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 29 transitions. [2020-10-26 06:02:11,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-26 06:02:11,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:11,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:11,496 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:11,496 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:11,497 INFO L794 eck$LassoCheckResult]: Stem: 309#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 304#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 305#L532 assume !(main_~length1~0 < 1); 306#L532-2 assume !(main_~length2~0 < 1); 301#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 302#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 296#L541-4 main_~i~1 := 0; 297#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 303#L547-4 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_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 293#L519-4 [2020-10-26 06:02:11,497 INFO L796 eck$LassoCheckResult]: Loop: 293#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 298#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 310#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 307#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 308#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7; 294#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 295#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 292#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 293#L519-4 [2020-10-26 06:02:11,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:11,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2020-10-26 06:02:11,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:11,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401379979] [2020-10-26 06:02:11,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,532 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,537 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:11,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:11,538 INFO L82 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 1 times [2020-10-26 06:02:11,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:11,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153173192] [2020-10-26 06:02:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,565 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:11,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:11,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1903570310, now seen corresponding path program 1 times [2020-10-26 06:02:11,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:11,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526314673] [2020-10-26 06:02:11,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:11,852 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 06:02:11,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526314673] [2020-10-26 06:02:11,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:02:11,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 06:02:11,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259606418] [2020-10-26 06:02:12,027 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-10-26 06:02:12,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:02:12,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 06:02:12,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 06:02:12,094 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. cyclomatic complexity: 11 Second operand 7 states. [2020-10-26 06:02:12,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:02:12,183 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2020-10-26 06:02:12,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 06:02:12,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2020-10-26 06:02:12,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-26 06:02:12,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 22 states and 29 transitions. [2020-10-26 06:02:12,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-10-26 06:02:12,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-10-26 06:02:12,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 29 transitions. [2020-10-26 06:02:12,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:12,187 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2020-10-26 06:02:12,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 29 transitions. [2020-10-26 06:02:12,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-10-26 06:02:12,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-26 06:02:12,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2020-10-26 06:02:12,190 INFO L714 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2020-10-26 06:02:12,190 INFO L594 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2020-10-26 06:02:12,190 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 06:02:12,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2020-10-26 06:02:12,191 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-26 06:02:12,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:12,191 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:12,192 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:12,192 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:12,192 INFO L794 eck$LassoCheckResult]: Stem: 375#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 370#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 371#L532 assume !(main_~length1~0 < 1); 372#L532-2 assume !(main_~length2~0 < 1); 367#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 368#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 377#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 378#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 362#L541-4 main_~i~1 := 0; 363#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 369#L547-4 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_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 361#L519-4 [2020-10-26 06:02:12,192 INFO L796 eck$LassoCheckResult]: Loop: 361#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 364#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 376#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 373#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 374#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7; 358#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 359#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 360#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 361#L519-4 [2020-10-26 06:02:12,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:12,193 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2020-10-26 06:02:12,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:12,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642384403] [2020-10-26 06:02:12,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:12,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:12,218 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:12,223 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:12,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:12,224 INFO L82 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 2 times [2020-10-26 06:02:12,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:12,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682963994] [2020-10-26 06:02:12,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:12,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:12,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:12,244 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:12,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:12,247 INFO L82 PathProgramCache]: Analyzing trace with hash -164170776, now seen corresponding path program 1 times [2020-10-26 06:02:12,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:12,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447708599] [2020-10-26 06:02:12,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:12,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 06:02:12,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447708599] [2020-10-26 06:02:12,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:02:12,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-26 06:02:12,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94496475] [2020-10-26 06:02:12,610 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-10-26 06:02:12,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:02:12,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 06:02:12,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-26 06:02:12,672 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand 9 states. [2020-10-26 06:02:12,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:02:12,919 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2020-10-26 06:02:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 06:02:12,921 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 41 transitions. [2020-10-26 06:02:12,922 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2020-10-26 06:02:12,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 41 transitions. [2020-10-26 06:02:12,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2020-10-26 06:02:12,923 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2020-10-26 06:02:12,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 41 transitions. [2020-10-26 06:02:12,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:12,924 INFO L691 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2020-10-26 06:02:12,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 41 transitions. [2020-10-26 06:02:12,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2020-10-26 06:02:12,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-26 06:02:12,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2020-10-26 06:02:12,927 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-26 06:02:12,927 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-26 06:02:12,927 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-26 06:02:12,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2020-10-26 06:02:12,928 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2020-10-26 06:02:12,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:12,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:12,929 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:12,929 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:12,929 INFO L794 eck$LassoCheckResult]: Stem: 455#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 450#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 451#L532 assume !(main_~length1~0 < 1); 452#L532-2 assume !(main_~length2~0 < 1); 446#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 447#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 458#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 459#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 441#L541-4 main_~i~1 := 0; 442#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 448#L547-4 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_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 464#L519-4 [2020-10-26 06:02:12,929 INFO L796 eck$LassoCheckResult]: Loop: 464#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 463#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 460#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 453#L522-1 assume !cstrcspn_#t~short7; 454#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7; 467#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 466#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 465#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 464#L519-4 [2020-10-26 06:02:12,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:12,930 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 2 times [2020-10-26 06:02:12,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:12,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313712429] [2020-10-26 06:02:12,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:12,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:12,950 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:12,954 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:12,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:12,955 INFO L82 PathProgramCache]: Analyzing trace with hash -903038413, now seen corresponding path program 1 times [2020-10-26 06:02:12,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:12,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094915714] [2020-10-26 06:02:12,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:12,960 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:12,968 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:12,971 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:12,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:12,971 INFO L82 PathProgramCache]: Analyzing trace with hash -162323734, now seen corresponding path program 1 times [2020-10-26 06:02:12,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:12,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950169438] [2020-10-26 06:02:12,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:12,989 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:13,011 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:13,024 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:13,143 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-10-26 06:02:13,755 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 107 [2020-10-26 06:02:13,960 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-26 06:02:13,963 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:13,963 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:13,963 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:13,963 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:13,963 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:13,963 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:13,964 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:13,964 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:13,964 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration5_Lasso [2020-10-26 06:02:13,964 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:13,964 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:13,974 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 06:02:13,977 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 06:02:13,979 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 06:02:13,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:14,428 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-10-26 06:02:14,591 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-26 06:02:14,592 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 06:02:14,599 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 06:02:14,602 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 06:02:14,604 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 06:02:14,607 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 06:02:14,610 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 06:02:14,612 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 06:02:14,624 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 06:02:14,626 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 06:02:14,629 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 06:02:14,638 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 06:02:14,640 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 06:02:14,646 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 06:02:14,648 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 06:02:14,651 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 06:02:14,654 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 06:02:14,656 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 06:02:14,659 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 06:02:14,663 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 06:02:14,666 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 06:02:14,668 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 06:02:14,796 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2020-10-26 06:02:15,451 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:15,452 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:15,464 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 06:02:15,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:15,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:15,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:15,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:15,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:15,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:15,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:15,471 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 06:02:15,497 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:15,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:15,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:15,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:15,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:15,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:15,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:15,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:15,502 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) [2020-10-26 06:02:15,526 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 06:02:15,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:15,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:15,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:15,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:15,530 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:15,530 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:15,535 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:15,568 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 06:02:15,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:15,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:15,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:15,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:15,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:15,582 INFO L402 nArgumentSynthesizer]: A total of 2 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 06:02:15,601 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:15,636 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-10-26 06:02:15,636 INFO L444 ModelExtractionUtils]: 8 out of 34 variables were initially zero. Simplification set additionally 23 variables to zero. 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 06:02:15,642 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:15,648 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:02:15,648 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:15,648 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_3, ULTIMATE.start_cstrcspn_~sc1~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_3 - 1*ULTIMATE.start_cstrcspn_~sc1~0.offset Supporting invariants [] [2020-10-26 06:02:15,721 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2020-10-26 06:02:15,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:02:15,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:15,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-26 06:02:15,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:15,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 06:02:15,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:15,847 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 06:02:15,848 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 06:02:15,848 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-26 06:02:15,928 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 48 states and 59 transitions. Complement of second has 5 states. [2020-10-26 06:02:15,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 06:02:15,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 06:02:15,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-26 06:02:15,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 11 letters. Loop has 8 letters. [2020-10-26 06:02:15,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:15,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 19 letters. Loop has 8 letters. [2020-10-26 06:02:15,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:15,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 11 letters. Loop has 16 letters. [2020-10-26 06:02:15,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:15,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 59 transitions. [2020-10-26 06:02:15,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 06:02:15,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 27 states and 35 transitions. [2020-10-26 06:02:15,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-26 06:02:15,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-26 06:02:15,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2020-10-26 06:02:15,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 06:02:15,934 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-26 06:02:15,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2020-10-26 06:02:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-26 06:02:15,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-26 06:02:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2020-10-26 06:02:15,937 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-26 06:02:15,937 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-26 06:02:15,937 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-26 06:02:15,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2020-10-26 06:02:15,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 06:02:15,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:15,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:15,939 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:15,939 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 06:02:15,939 INFO L794 eck$LassoCheckResult]: Stem: 675#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 667#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 668#L532 assume !(main_~length1~0 < 1); 669#L532-2 assume !(main_~length2~0 < 1); 664#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 665#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 678#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 679#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 657#L541-4 main_~i~1 := 0; 658#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 662#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 663#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 666#L547-4 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_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 659#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 661#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 676#L522-5 [2020-10-26 06:02:15,940 INFO L796 eck$LassoCheckResult]: Loop: 676#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 670#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 671#L522-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 676#L522-5 [2020-10-26 06:02:15,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:15,940 INFO L82 PathProgramCache]: Analyzing trace with hash 2055034687, now seen corresponding path program 1 times [2020-10-26 06:02:15,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:15,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342420507] [2020-10-26 06:02:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:15,959 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:15,973 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:15,978 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:15,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:15,979 INFO L82 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 1 times [2020-10-26 06:02:15,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:15,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448821466] [2020-10-26 06:02:15,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:15,984 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:15,988 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:15,990 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:15,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:15,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1074579938, now seen corresponding path program 1 times [2020-10-26 06:02:15,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:15,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900614990] [2020-10-26 06:02:15,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:16,014 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:16,078 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:16,090 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:17,128 WARN L193 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 127 [2020-10-26 06:02:17,441 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-26 06:02:17,444 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:17,444 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:17,444 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:17,444 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:17,444 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:17,444 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:17,445 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:17,445 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:17,445 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration6_Lasso [2020-10-26 06:02:17,445 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:17,445 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:17,452 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 06:02:17,465 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 06:02:17,467 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 06:02:17,471 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 06:02:17,473 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 06:02:17,476 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 06:02:17,478 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 06:02:17,481 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 06:02:17,484 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 06:02:17,487 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 06:02:17,493 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 06:02:18,133 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-10-26 06:02:18,357 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2020-10-26 06:02:18,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:18,791 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-26 06:02:19,230 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-26 06:02:19,712 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-26 06:02:19,755 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:19,755 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:19,762 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 06:02:19,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,816 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 06:02:19,844 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:19,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:19,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:19,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 06:02:19,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:19,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:19,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:19,928 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 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 06:02:19,950 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:19,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:19,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:19,953 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 06:02:19,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:19,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:19,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:19,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:19,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:19,978 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:19,978 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:19,981 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 06:02:20,004 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 06:02:20,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:20,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:20,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:20,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:20,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:20,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:20,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:20,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:20,030 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 06:02:20,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:20,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:20,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:20,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:20,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:20,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:20,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:20,034 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 06:02:20,059 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 06:02:20,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:20,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:20,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:20,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:20,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:20,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:20,087 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 06:02:20,126 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 06:02:20,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:20,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:20,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:20,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:20,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:20,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:20,133 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 06:02:20,157 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 06:02:20,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:20,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:20,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:20,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:20,175 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:20,175 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:20,205 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:20,271 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2020-10-26 06:02:20,271 INFO L444 ModelExtractionUtils]: 24 out of 58 variables were initially zero. Simplification set additionally 31 variables to zero. 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) [2020-10-26 06:02:20,279 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:20,283 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:02:20,283 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:20,283 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_4, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_4 - 1*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2020-10-26 06:02:20,421 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2020-10-26 06:02:20,423 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:02:20,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:20,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-26 06:02:20,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:20,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 06:02:20,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:20,539 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2020-10-26 06:02:20,539 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand 5 states. [2020-10-26 06:02:20,671 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12. Second operand 5 states. Result 54 states and 67 transitions. Complement of second has 7 states. [2020-10-26 06:02:20,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 06:02:20,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-26 06:02:20,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2020-10-26 06:02:20,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 15 letters. Loop has 3 letters. [2020-10-26 06:02:20,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:20,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 18 letters. Loop has 3 letters. [2020-10-26 06:02:20,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:20,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 15 letters. Loop has 6 letters. [2020-10-26 06:02:20,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:20,674 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 67 transitions. [2020-10-26 06:02:20,676 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 06:02:20,676 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 40 states and 50 transitions. [2020-10-26 06:02:20,676 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-10-26 06:02:20,676 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-26 06:02:20,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 50 transitions. [2020-10-26 06:02:20,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 06:02:20,677 INFO L691 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2020-10-26 06:02:20,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 50 transitions. [2020-10-26 06:02:20,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2020-10-26 06:02:20,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-26 06:02:20,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2020-10-26 06:02:20,680 INFO L714 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2020-10-26 06:02:20,681 INFO L594 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2020-10-26 06:02:20,681 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-26 06:02:20,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2020-10-26 06:02:20,682 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 06:02:20,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:20,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:20,683 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:20,683 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 06:02:20,683 INFO L794 eck$LassoCheckResult]: Stem: 939#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 932#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 933#L532 assume !(main_~length1~0 < 1); 934#L532-2 assume !(main_~length2~0 < 1); 929#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 930#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 942#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 943#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 921#L541-4 main_~i~1 := 0; 922#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 927#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 928#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 931#L547-4 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_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 923#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 924#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 946#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 937#L522-1 assume !cstrcspn_#t~short7; 938#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7; 919#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 920#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 917#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 918#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 926#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 940#L522-5 [2020-10-26 06:02:20,683 INFO L796 eck$LassoCheckResult]: Loop: 940#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 935#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 936#L522-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 940#L522-5 [2020-10-26 06:02:20,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:20,684 INFO L82 PathProgramCache]: Analyzing trace with hash -777149455, now seen corresponding path program 1 times [2020-10-26 06:02:20,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:20,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586570901] [2020-10-26 06:02:20,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 06:02:20,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586570901] [2020-10-26 06:02:20,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554453938] [2020-10-26 06:02:20,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 06:02:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:21,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 35 conjunts are in the unsatisfiable core [2020-10-26 06:02:21,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:21,093 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-10-26 06:02:21,096 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 06:02:21,101 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 06:02:21,101 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-26 06:02:21,101 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:8 [2020-10-26 06:02:21,234 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 21 [2020-10-26 06:02:21,235 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 06:02:21,253 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 06:02:21,262 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-26 06:02:21,266 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:47, output treesize:31 [2020-10-26 06:02:21,534 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 06:02:21,534 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 21 [2020-10-26 06:02:21,536 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-26 06:02:21,558 INFO L625 ElimStorePlain]: treesize reduction 8, result has 63.6 percent of original size [2020-10-26 06:02:21,562 INFO L545 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 06:02:21,562 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:38, output treesize:3 [2020-10-26 06:02:21,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 06:02:21,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 06:02:21,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-10-26 06:02:21,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401099754] [2020-10-26 06:02:21,569 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 06:02:21,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:21,570 INFO L82 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 2 times [2020-10-26 06:02:21,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:21,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696331602] [2020-10-26 06:02:21,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:21,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:21,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:21,581 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:21,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:02:21,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-26 06:02:21,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-26 06:02:21,718 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. cyclomatic complexity: 14 Second operand 15 states. [2020-10-26 06:02:22,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:02:22,251 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2020-10-26 06:02:22,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 06:02:22,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 65 transitions. [2020-10-26 06:02:22,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 06:02:22,253 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 35 states and 44 transitions. [2020-10-26 06:02:22,253 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-26 06:02:22,253 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-26 06:02:22,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 44 transitions. [2020-10-26 06:02:22,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 06:02:22,254 INFO L691 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2020-10-26 06:02:22,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 44 transitions. [2020-10-26 06:02:22,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2020-10-26 06:02:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-26 06:02:22,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2020-10-26 06:02:22,257 INFO L714 BuchiCegarLoop]: Abstraction has 34 states and 43 transitions. [2020-10-26 06:02:22,257 INFO L594 BuchiCegarLoop]: Abstraction has 34 states and 43 transitions. [2020-10-26 06:02:22,257 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-26 06:02:22,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 43 transitions. [2020-10-26 06:02:22,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 06:02:22,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:22,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:22,259 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:22,259 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 06:02:22,259 INFO L794 eck$LassoCheckResult]: Stem: 1120#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1113#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 1114#L532 assume !(main_~length1~0 < 1); 1115#L532-2 assume !(main_~length2~0 < 1); 1110#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 1111#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 1125#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 1126#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 1128#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 1130#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1102#L541-4 main_~i~1 := 0; 1103#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 1108#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 1109#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1112#L547-4 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_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 1104#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 1105#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 1123#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 1118#L522-1 assume !cstrcspn_#t~short7; 1119#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7; 1100#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 1101#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 1098#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 1099#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 1107#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 1121#L522-5 [2020-10-26 06:02:22,260 INFO L796 eck$LassoCheckResult]: Loop: 1121#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 1116#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 1117#L522-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 1121#L522-5 [2020-10-26 06:02:22,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:22,260 INFO L82 PathProgramCache]: Analyzing trace with hash 409245907, now seen corresponding path program 2 times [2020-10-26 06:02:22,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:22,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373856724] [2020-10-26 06:02:22,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:22,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:22,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:22,351 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:22,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:22,355 INFO L82 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 3 times [2020-10-26 06:02:22,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:22,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256332404] [2020-10-26 06:02:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:22,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:22,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:22,364 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:22,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:22,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1567281202, now seen corresponding path program 1 times [2020-10-26 06:02:22,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:22,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44941926] [2020-10-26 06:02:22,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:22,473 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 06:02:22,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44941926] [2020-10-26 06:02:22,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200974864] [2020-10-26 06:02:22,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 06:02:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:22,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 34 conjunts are in the unsatisfiable core [2020-10-26 06:02:22,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:22,685 INFO L350 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2020-10-26 06:02:22,685 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2020-10-26 06:02:22,685 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 06:02:22,696 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 06:02:22,698 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-26 06:02:22,698 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:46, output treesize:30 [2020-10-26 06:02:22,777 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 06:02:23,031 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 06:02:23,065 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 06:02:23,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 06:02:23,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13] total 17 [2020-10-26 06:02:23,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374587363] [2020-10-26 06:02:23,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:02:23,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-26 06:02:23,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-10-26 06:02:23,185 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. cyclomatic complexity: 14 Second operand 17 states. [2020-10-26 06:02:23,526 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2020-10-26 06:02:24,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:02:24,210 INFO L93 Difference]: Finished difference Result 111 states and 131 transitions. [2020-10-26 06:02:24,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-26 06:02:24,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 131 transitions. [2020-10-26 06:02:24,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 06:02:24,213 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 55 states and 67 transitions. [2020-10-26 06:02:24,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-10-26 06:02:24,214 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-10-26 06:02:24,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 67 transitions. [2020-10-26 06:02:24,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 06:02:24,214 INFO L691 BuchiCegarLoop]: Abstraction has 55 states and 67 transitions. [2020-10-26 06:02:24,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 67 transitions. [2020-10-26 06:02:24,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 40. [2020-10-26 06:02:24,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-26 06:02:24,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2020-10-26 06:02:24,222 INFO L714 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2020-10-26 06:02:24,222 INFO L594 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2020-10-26 06:02:24,222 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-26 06:02:24,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2020-10-26 06:02:24,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 06:02:24,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:24,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:24,226 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:24,226 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 06:02:24,227 INFO L794 eck$LassoCheckResult]: Stem: 1404#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1397#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 1398#L532 assume !(main_~length1~0 < 1); 1399#L532-2 assume !(main_~length2~0 < 1); 1392#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 1393#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 1412#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 1413#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 1409#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 1410#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1384#L541-4 main_~i~1 := 0; 1385#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 1394#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 1395#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 1390#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 1391#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1396#L547-4 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_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 1386#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 1387#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 1418#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 1402#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 1403#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7; 1380#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 1381#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 1382#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 1383#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 1389#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 1405#L522-5 [2020-10-26 06:02:24,227 INFO L796 eck$LassoCheckResult]: Loop: 1405#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 1400#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 1401#L522-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 1405#L522-5 [2020-10-26 06:02:24,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:24,228 INFO L82 PathProgramCache]: Analyzing trace with hash 2023300851, now seen corresponding path program 1 times [2020-10-26 06:02:24,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:24,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156178273] [2020-10-26 06:02:24,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:24,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:24,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:24,331 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:24,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:24,337 INFO L82 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 4 times [2020-10-26 06:02:24,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:24,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675268068] [2020-10-26 06:02:24,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:24,348 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:24,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:24,353 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:24,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:24,356 INFO L82 PathProgramCache]: Analyzing trace with hash 584676782, now seen corresponding path program 1 times [2020-10-26 06:02:24,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:24,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649474286] [2020-10-26 06:02:24,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:24,385 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:24,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:24,413 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:26,508 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 243 DAG size of output: 187 [2020-10-26 06:02:31,877 WARN L193 SmtUtils]: Spent 5.35 s on a formula simplification. DAG size of input: 158 DAG size of output: 158 [2020-10-26 06:02:31,882 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:31,882 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:31,882 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:31,882 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:31,882 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:31,882 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:31,882 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:31,882 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:31,883 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration9_Lasso [2020-10-26 06:02:31,883 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:31,883 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:31,899 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 06:02:31,912 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 06:02:31,915 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 06:02:31,917 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 06:02:31,920 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 06:02:31,923 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 06:02:31,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:31,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:32,554 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-10-26 06:02:33,932 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 124 DAG size of output: 106 [2020-10-26 06:02:34,151 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-26 06:02:34,152 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 06:02:34,155 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 06:02:34,156 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 06:02:34,159 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 06:02:34,163 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 06:02:34,166 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 06:02:34,169 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 06:02:34,172 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 06:02:34,176 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 06:02:34,179 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 06:02:34,183 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 06:02:34,186 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 06:02:34,189 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 06:02:34,193 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 06:02:34,196 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 06:02:34,200 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 06:02:34,203 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 06:02:34,456 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-10-26 06:02:34,666 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-26 06:02:35,893 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2020-10-26 06:02:36,159 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-10-26 06:02:36,372 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:36,372 INFO L489 LassoAnalysis]: Using template 'affine'. 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 06:02:36,377 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 06:02:36,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:36,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:36,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:36,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:36,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:36,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:36,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:36,383 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 06:02:36,406 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 06:02:36,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:36,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:36,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:36,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:36,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:36,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:36,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:36,409 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 06:02:36,432 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 06:02:36,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:36,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:36,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:36,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:36,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:36,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:36,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:36,435 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 06:02:36,456 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 06:02:36,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:36,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:36,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:36,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:36,458 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:36,458 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:36,461 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 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 06:02:36,484 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 06:02:36,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:36,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:36,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:36,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:36,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:36,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:36,496 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 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:36,518 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 06:02:36,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:36,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:36,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:36,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:36,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:36,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:36,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:36,521 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:36,542 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 06:02:36,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:36,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:36,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:36,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:36,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:36,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:36,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:36,546 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 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:36,569 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 06:02:36,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:36,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:36,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:36,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:36,583 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:36,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:36,610 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:36,657 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-10-26 06:02:36,657 INFO L444 ModelExtractionUtils]: 17 out of 55 variables were initially zero. Simplification set additionally 33 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:36,660 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 06:02:36,662 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-26 06:02:36,662 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:36,663 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_4, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_4 - 1*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [-1*v_rep(select #length ULTIMATE.start_cstrcspn_~s~0.base)_3 + 1*v_rep(select #length ULTIMATE.start_cstrcspn_~sc1~0.base)_2 >= 0] [2020-10-26 06:02:36,928 INFO L297 tatePredicateManager]: 33 out of 36 supporting invariants were superfluous and have been removed [2020-10-26 06:02:36,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:02:36,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:37,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 31 conjunts are in the unsatisfiable core [2020-10-26 06:02:37,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:37,046 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 06:02:37,047 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-10-26 06:02:37,047 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 06:02:37,081 INFO L625 ElimStorePlain]: treesize reduction 10, result has 68.8 percent of original size [2020-10-26 06:02:37,082 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-26 06:02:37,082 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:22 [2020-10-26 06:02:37,325 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 06:02:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:37,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-26 06:02:37,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:37,428 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 06:02:37,428 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.9 stem predicates 2 loop predicates [2020-10-26 06:02:37,429 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 15 Second operand 11 states. [2020-10-26 06:02:38,243 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 15. Second operand 11 states. Result 70 states and 88 transitions. Complement of second has 14 states. [2020-10-26 06:02:38,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 9 stem states 1 non-accepting loop states 2 accepting loop states [2020-10-26 06:02:38,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-26 06:02:38,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 39 transitions. [2020-10-26 06:02:38,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 39 transitions. Stem has 27 letters. Loop has 3 letters. [2020-10-26 06:02:38,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:38,246 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-26 06:02:38,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:38,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 31 conjunts are in the unsatisfiable core [2020-10-26 06:02:38,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:38,350 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 06:02:38,350 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-10-26 06:02:38,351 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 06:02:38,382 INFO L625 ElimStorePlain]: treesize reduction 10, result has 68.8 percent of original size [2020-10-26 06:02:38,382 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-26 06:02:38,382 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:22 [2020-10-26 06:02:38,628 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 06:02:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:38,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-26 06:02:38,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:38,724 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 06:02:38,725 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.9 stem predicates 2 loop predicates [2020-10-26 06:02:38,725 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 15 Second operand 11 states. [2020-10-26 06:02:39,474 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 15. Second operand 11 states. Result 70 states and 88 transitions. Complement of second has 14 states. [2020-10-26 06:02:39,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 9 stem states 1 non-accepting loop states 2 accepting loop states [2020-10-26 06:02:39,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-26 06:02:39,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 39 transitions. [2020-10-26 06:02:39,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 39 transitions. Stem has 27 letters. Loop has 3 letters. [2020-10-26 06:02:39,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:39,477 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-26 06:02:39,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:39,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 31 conjunts are in the unsatisfiable core [2020-10-26 06:02:39,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:39,577 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 06:02:39,578 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-10-26 06:02:39,578 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 06:02:39,606 INFO L625 ElimStorePlain]: treesize reduction 10, result has 68.8 percent of original size [2020-10-26 06:02:39,607 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-26 06:02:39,607 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:22 [2020-10-26 06:02:39,850 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 06:02:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:39,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-26 06:02:39,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:39,965 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 06:02:39,966 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.9 stem predicates 2 loop predicates [2020-10-26 06:02:39,966 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 15 Second operand 11 states. [2020-10-26 06:02:40,771 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 15. Second operand 11 states. Result 86 states and 110 transitions. Complement of second has 13 states. [2020-10-26 06:02:40,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 9 stem states 1 non-accepting loop states 2 accepting loop states [2020-10-26 06:02:40,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-26 06:02:40,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 57 transitions. [2020-10-26 06:02:40,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 57 transitions. Stem has 27 letters. Loop has 3 letters. [2020-10-26 06:02:40,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:40,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 57 transitions. Stem has 30 letters. Loop has 3 letters. [2020-10-26 06:02:40,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:40,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 57 transitions. Stem has 27 letters. Loop has 6 letters. [2020-10-26 06:02:40,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:40,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 110 transitions. [2020-10-26 06:02:40,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 06:02:40,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 45 states and 55 transitions. [2020-10-26 06:02:40,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-10-26 06:02:40,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-10-26 06:02:40,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 55 transitions. [2020-10-26 06:02:40,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 06:02:40,780 INFO L691 BuchiCegarLoop]: Abstraction has 45 states and 55 transitions. [2020-10-26 06:02:40,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 55 transitions. [2020-10-26 06:02:40,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2020-10-26 06:02:40,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-26 06:02:40,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2020-10-26 06:02:40,791 INFO L714 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2020-10-26 06:02:40,791 INFO L594 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2020-10-26 06:02:40,791 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-26 06:02:40,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 52 transitions. [2020-10-26 06:02:40,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 06:02:40,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:40,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:40,792 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:40,792 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 06:02:40,793 INFO L794 eck$LassoCheckResult]: Stem: 2230#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2223#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 2224#L532 assume !(main_~length1~0 < 1); 2225#L532-2 assume !(main_~length2~0 < 1); 2218#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 2219#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 2235#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 2236#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 2237#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 2243#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 2210#L541-4 main_~i~1 := 0; 2211#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 2216#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 2217#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 2245#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 2220#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 2221#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 2242#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 2222#L547-4 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_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 2212#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 2213#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 2240#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 2241#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 2238#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7; 2208#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 2209#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 2206#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 2207#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 2215#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 2231#L522-5 [2020-10-26 06:02:40,793 INFO L796 eck$LassoCheckResult]: Loop: 2231#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 2226#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 2227#L522-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~short7;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 2231#L522-5 [2020-10-26 06:02:40,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:40,793 INFO L82 PathProgramCache]: Analyzing trace with hash -968000747, now seen corresponding path program 2 times [2020-10-26 06:02:40,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:40,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460331480] [2020-10-26 06:02:40,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:40,823 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:40,840 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:40,853 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:40,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:40,854 INFO L82 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 5 times [2020-10-26 06:02:40,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:40,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842615974] [2020-10-26 06:02:40,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:40,860 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:40,863 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:40,864 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:40,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:40,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1299771828, now seen corresponding path program 2 times [2020-10-26 06:02:40,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:40,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205335672] [2020-10-26 06:02:40,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:40,891 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:40,912 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:40,920 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:44,731 WARN L193 SmtUtils]: Spent 3.68 s on a formula simplification. DAG size of input: 257 DAG size of output: 200 [2020-10-26 06:02:58,769 WARN L193 SmtUtils]: Spent 14.01 s on a formula simplification. DAG size of input: 163 DAG size of output: 163 [2020-10-26 06:02:58,774 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:58,774 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:58,774 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:58,774 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:58,775 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:58,775 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:58,775 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:58,775 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:58,775 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration10_Lasso [2020-10-26 06:02:58,775 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:58,775 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:58,782 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 06:02:58,794 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 06:02:58,798 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 06:02:58,802 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 06:02:58,805 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 06:02:58,809 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 06:02:58,813 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 06:02:58,817 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 06:02:58,821 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 06:02:58,825 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 06:02:58,829 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 06:02:58,833 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 06:02:58,836 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 06:02:58,840 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 06:02:58,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:58,851 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 06:02:58,855 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 06:02:58,858 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 06:02:58,862 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 06:02:58,866 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 06:02:58,870 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 06:02:58,874 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 06:02:58,877 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 06:02:58,881 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 06:02:58,894 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 06:02:59,809 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-10-26 06:03:01,363 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 125 DAG size of output: 112 [2020-10-26 06:03:01,619 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2020-10-26 06:03:01,620 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 06:03:01,942 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-26 06:03:02,406 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-26 06:03:03,481 WARN L193 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2020-10-26 06:03:03,782 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-10-26 06:03:04,043 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-26 06:03:04,109 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:03:04,109 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,112 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 06:03:04,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,116 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:04,140 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:04,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:04,147 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:04,169 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 06:03:04,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,172 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:04,195 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,199 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 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,220 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 06:03:04,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,224 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 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,247 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 06:03:04,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,249 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,250 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 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,271 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 06:03:04,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,274 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 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,297 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 06:03:04,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:04,299 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:04,304 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 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,326 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 06:03:04,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,329 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 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,352 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 06:03:04,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,355 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:04,355 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:04,358 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 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,381 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 06:03:04,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,384 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 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,407 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 06:03:04,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,410 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:04,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,436 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 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,459 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 06:03:04,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,462 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 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,484 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 06:03:04,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,487 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 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,512 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 06:03:04,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,516 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 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,540 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 06:03:04,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,543 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 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,566 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 06:03:04,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,574 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 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,598 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 06:03:04,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,601 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 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,623 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 06:03:04,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:04,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:04,629 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 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,654 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 06:03:04,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,656 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,657 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 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,678 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 06:03:04,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,680 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,681 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 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,706 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 06:03:04,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:04,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,708 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:04,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:04,709 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 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,731 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 06:03:04,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,734 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:04,734 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:04,737 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 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,760 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 06:03:04,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,763 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:04,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:04,766 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 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,788 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 06:03:04,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,792 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:04,792 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:04,798 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 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,823 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 06:03:04,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:04,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:04,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:04,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:04,828 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 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:04,852 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 06:03:04,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:04,853 INFO L203 nArgumentSynthesizer]: 8 stem disjuncts [2020-10-26 06:03:04,853 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2020-10-26 06:03:04,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:04,998 INFO L401 nArgumentSynthesizer]: We have 180 Motzkin's Theorem applications. [2020-10-26 06:03:04,999 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2020-10-26 06:03:05,249 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 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:05,271 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 06:03:05,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:05,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:05,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:05,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:05,283 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:05,283 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:05,299 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 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:05,321 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 06:03:05,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:05,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:05,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:05,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:05,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:05,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:05,327 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:05,353 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 06:03:05,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:05,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:05,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:05,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:05,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:05,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:05,393 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:03:05,460 INFO L443 ModelExtractionUtils]: Simplification made 28 calls to the SMT solver. [2020-10-26 06:03:05,461 INFO L444 ModelExtractionUtils]: 13 out of 61 variables were initially zero. Simplification set additionally 45 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:05,463 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 06:03:05,465 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:03:05,465 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:03:05,465 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_3, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_3 - 1*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2020-10-26 06:03:05,722 INFO L297 tatePredicateManager]: 36 out of 37 supporting invariants were superfluous and have been removed [2020-10-26 06:03:05,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:03:05,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:03:05,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 06:03:05,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:03:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:03:05,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 06:03:05,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:03:05,861 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 06:03:05,862 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 06:03:05,862 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 52 transitions. cyclomatic complexity: 15 Second operand 4 states. [2020-10-26 06:03:05,932 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 52 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 60 states and 74 transitions. Complement of second has 6 states. [2020-10-26 06:03:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 06:03:05,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 06:03:05,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-10-26 06:03:05,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 29 letters. Loop has 3 letters. [2020-10-26 06:03:05,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:03:05,935 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-26 06:03:05,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:03:06,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 06:03:06,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:03:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:03:06,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 06:03:06,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:03:06,081 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 06:03:06,082 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-26 06:03:06,082 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 52 transitions. cyclomatic complexity: 15 Second operand 4 states. [2020-10-26 06:03:06,143 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 52 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 60 states and 74 transitions. Complement of second has 6 states. [2020-10-26 06:03:06,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 06:03:06,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 06:03:06,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-10-26 06:03:06,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 29 letters. Loop has 3 letters. [2020-10-26 06:03:06,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:03:06,146 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-26 06:03:06,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:03:06,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 06:03:06,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:03:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:03:06,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 06:03:06,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:03:06,273 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 06:03:06,274 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-26 06:03:06,274 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 52 transitions. cyclomatic complexity: 15 Second operand 4 states. [2020-10-26 06:03:06,349 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 52 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 59 states and 76 transitions. Complement of second has 5 states. [2020-10-26 06:03:06,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 06:03:06,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 06:03:06,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2020-10-26 06:03:06,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 29 letters. Loop has 3 letters. [2020-10-26 06:03:06,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:03:06,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 32 letters. Loop has 3 letters. [2020-10-26 06:03:06,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:03:06,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 29 letters. Loop has 6 letters. [2020-10-26 06:03:06,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:03:06,352 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 76 transitions. [2020-10-26 06:03:06,353 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 06:03:06,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 0 states and 0 transitions. [2020-10-26 06:03:06,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 06:03:06,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 06:03:06,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 06:03:06,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:03:06,354 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:03:06,354 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:03:06,354 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:03:06,354 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-10-26 06:03:06,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 06:03:06,354 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 06:03:06,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 06:03:06,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 06:03:06 BoogieIcfgContainer [2020-10-26 06:03:06,360 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 06:03:06,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 06:03:06,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 06:03:06,361 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 06:03:06,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:07" (3/4) ... [2020-10-26 06:03:06,365 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 06:03:06,365 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 06:03:06,366 INFO L168 Benchmark]: Toolchain (without parser) took 60320.35 ms. Allocated memory was 44.0 MB in the beginning and 251.7 MB in the end (delta: 207.6 MB). Free memory was 29.9 MB in the beginning and 181.1 MB in the end (delta: -151.2 MB). Peak memory consumption was 55.9 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:06,366 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 35.7 MB. Free memory is still 21.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:03:06,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.97 ms. Allocated memory is still 44.0 MB. Free memory was 29.3 MB in the beginning and 27.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:06,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.19 ms. Allocated memory is still 44.0 MB. Free memory was 27.4 MB in the beginning and 25.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:06,367 INFO L168 Benchmark]: Boogie Preprocessor took 32.40 ms. Allocated memory is still 44.0 MB. Free memory was 25.5 MB in the beginning and 24.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:06,368 INFO L168 Benchmark]: RCFGBuilder took 513.85 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 24.0 MB in the beginning and 26.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:06,368 INFO L168 Benchmark]: BuchiAutomizer took 59030.59 ms. Allocated memory was 54.5 MB in the beginning and 251.7 MB in the end (delta: 197.1 MB). Free memory was 26.6 MB in the beginning and 181.1 MB in the end (delta: -154.5 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:06,368 INFO L168 Benchmark]: Witness Printer took 4.07 ms. Allocated memory is still 251.7 MB. Free memory is still 181.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:03:06,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 35.7 MB. Free memory is still 21.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 662.97 ms. Allocated memory is still 44.0 MB. Free memory was 29.3 MB in the beginning and 27.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.19 ms. Allocated memory is still 44.0 MB. Free memory was 27.4 MB in the beginning and 25.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.40 ms. Allocated memory is still 44.0 MB. Free memory was 25.5 MB in the beginning and 24.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 513.85 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 24.0 MB in the beginning and 26.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 59030.59 ms. Allocated memory was 54.5 MB in the beginning and 251.7 MB in the end (delta: 197.1 MB). Free memory was 26.6 MB in the beginning and 181.1 MB in the end (delta: -154.5 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.07 ms. Allocated memory is still 251.7 MB. Free memory is still 181.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (4 trivial, 4 deterministic, 2 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 + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * sc1 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. One nondeterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * s and consists of 12 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * s and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 58.9s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 51.4s. Construction of modules took 1.2s. Büchi inclusion checks took 6.0s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 31 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 42 states and ocurred in iteration 9. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 245 SDtfs, 758 SDslu, 577 SDs, 0 SdLazy, 865 SolverSat, 161 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 1.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU1 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital458 mio100 ax107 hnf98 lsp127 ukn56 mio100 lsp39 div113 bol100 ite100 ukn100 eq169 hnf84 smp93 dnf597 smp63 tf100 neg97 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 399ms VariablesStem: 7 VariablesLoop: 4 DisjunctsStem: 8 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 180 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...