./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-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 f68b319d77fa756392ca29e618a1e0accd9b6c9e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 20:25:53,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 20:25:53,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 20:25:53,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 20:25:53,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 20:25:53,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 20:25:53,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 20:25:53,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 20:25:53,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 20:25:53,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 20:25:53,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 20:25:53,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 20:25:53,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 20:25:53,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 20:25:53,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 20:25:53,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 20:25:53,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 20:25:53,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 20:25:53,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 20:25:53,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 20:25:53,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 20:25:53,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 20:25:53,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 20:25:53,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 20:25:53,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 20:25:53,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 20:25:53,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 20:25:53,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 20:25:53,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 20:25:53,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 20:25:53,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 20:25:53,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 20:25:53,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 20:25:53,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 20:25:53,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 20:25:53,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 20:25:53,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 20:25:53,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 20:25:53,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 20:25:53,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 20:25:53,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 20:25:53,375 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 20:25:53,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 20:25:53,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 20:25:53,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 20:25:53,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 20:25:53,405 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 20:25:53,405 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 20:25:53,405 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 20:25:53,406 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 20:25:53,406 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 20:25:53,406 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 20:25:53,406 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 20:25:53,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 20:25:53,407 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 20:25:53,407 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 20:25:53,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 20:25:53,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 20:25:53,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 20:25:53,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 20:25:53,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 20:25:53,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 20:25:53,409 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 20:25:53,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 20:25:53,410 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 20:25:53,410 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 20:25:53,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 20:25:53,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 20:25:53,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 20:25:53,411 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 20:25:53,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 20:25:53,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 20:25:53,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 20:25:53,413 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 20:25:53,414 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 20:25:53,414 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f68b319d77fa756392ca29e618a1e0accd9b6c9e [2020-10-19 20:25:53,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 20:25:53,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 20:25:53,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 20:25:53,799 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 20:25:53,800 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 20:25:53,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca-1.i [2020-10-19 20:25:53,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba034a988/62712e0966b74d219650a70afeea644b/FLAG6a83dc5d7 [2020-10-19 20:25:54,426 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 20:25:54,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca-1.i [2020-10-19 20:25:54,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba034a988/62712e0966b74d219650a70afeea644b/FLAG6a83dc5d7 [2020-10-19 20:25:54,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba034a988/62712e0966b74d219650a70afeea644b [2020-10-19 20:25:54,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 20:25:54,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 20:25:54,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 20:25:54,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 20:25:54,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 20:25:54,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:25:54" (1/1) ... [2020-10-19 20:25:54,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69cbac92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:54, skipping insertion in model container [2020-10-19 20:25:54,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:25:54" (1/1) ... [2020-10-19 20:25:54,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 20:25:54,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 20:25:55,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:25:55,357 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 20:25:55,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:25:55,463 INFO L208 MainTranslator]: Completed translation [2020-10-19 20:25:55,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:55 WrapperNode [2020-10-19 20:25:55,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 20:25:55,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 20:25:55,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 20:25:55,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 20:25:55,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:55" (1/1) ... [2020-10-19 20:25:55,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:55" (1/1) ... [2020-10-19 20:25:55,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 20:25:55,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 20:25:55,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 20:25:55,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 20:25:55,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:55" (1/1) ... [2020-10-19 20:25:55,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:55" (1/1) ... [2020-10-19 20:25:55,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:55" (1/1) ... [2020-10-19 20:25:55,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:55" (1/1) ... [2020-10-19 20:25:55,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:55" (1/1) ... [2020-10-19 20:25:55,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:55" (1/1) ... [2020-10-19 20:25:55,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:55" (1/1) ... [2020-10-19 20:25:55,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 20:25:55,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 20:25:55,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 20:25:55,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 20:25:55,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:55" (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 [2020-10-19 20:25:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 20:25:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 20:25:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 20:25:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 20:25:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 20:25:55,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 20:25:55,924 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 20:25:55,925 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 20:25:55,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:25:55 BoogieIcfgContainer [2020-10-19 20:25:55,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 20:25:55,929 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 20:25:55,929 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 20:25:55,934 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 20:25:55,935 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:25:55,935 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 08:25:54" (1/3) ... [2020-10-19 20:25:55,937 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c560463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:25:55, skipping insertion in model container [2020-10-19 20:25:55,938 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:25:55,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:55" (2/3) ... [2020-10-19 20:25:55,939 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c560463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:25:55, skipping insertion in model container [2020-10-19 20:25:55,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:25:55,940 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:25:55" (3/3) ... [2020-10-19 20:25:55,942 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcmp-alloca-1.i [2020-10-19 20:25:56,039 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 20:25:56,039 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 20:25:56,040 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 20:25:56,040 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 20:25:56,041 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 20:25:56,041 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 20:25:56,042 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 20:25:56,042 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 20:25:56,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2020-10-19 20:25:56,094 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-19 20:25:56,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:25:56,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:25:56,101 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 20:25:56,101 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:25:56,102 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 20:25:56,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2020-10-19 20:25:56,104 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-19 20:25:56,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:25:56,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:25:56,105 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 20:25:56,105 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:25:56,111 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 13#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 6#L524true assume !(main_~length1~0 < 1); 12#L524-2true assume !(main_~length2~0 < 1); 3#L527-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 16#L533-3true [2020-10-19 20:25:56,112 INFO L796 eck$LassoCheckResult]: Loop: 16#L533-3true 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; 15#L533-2true main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 16#L533-3true [2020-10-19 20:25:56,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:56,118 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-10-19 20:25:56,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:56,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011314359] [2020-10-19 20:25:56,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:56,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:56,259 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:56,282 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:56,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:56,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2020-10-19 20:25:56,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:56,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247703844] [2020-10-19 20:25:56,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:56,296 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:56,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:56,307 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:56,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:56,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2020-10-19 20:25:56,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:56,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131619170] [2020-10-19 20:25:56,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:56,340 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:56,366 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:56,372 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:56,620 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-10-19 20:25:56,732 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:25:56,735 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:25:56,736 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:25:56,736 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:25:56,736 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:25:56,737 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:56,737 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:25:56,738 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:25:56,738 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-1.i_Iteration1_Lasso [2020-10-19 20:25:56,738 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:25:56,738 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:25:56,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:56,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:56,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:56,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:56,954 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-10-19 20:25:56,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:56,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:56,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:56,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:56,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:57,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:57,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:57,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:57,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:57,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:57,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:57,362 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:25:57,368 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) [2020-10-19 20:25:57,385 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 [2020-10-19 20:25:57,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:57,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:57,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:57,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:57,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:57,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:57,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:57,408 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:25:57,448 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 [2020-10-19 20:25:57,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:57,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:57,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:57,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:57,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:57,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:57,454 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 [2020-10-19 20:25:57,457 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) [2020-10-19 20:25:57,492 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 [2020-10-19 20:25:57,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:57,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:57,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:57,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:57,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:57,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:57,496 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 [2020-10-19 20:25:57,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:57,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:25:57,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:57,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:57,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:57,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:57,533 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:57,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:57,539 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) [2020-10-19 20:25:57,586 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:57,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:57,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:57,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:57,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:57,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:57,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:57,596 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 [2020-10-19 20:25:57,627 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 [2020-10-19 20:25:57,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:57,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:57,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:57,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:57,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:57,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:57,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:57,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:57,656 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 [2020-10-19 20:25:57,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:57,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:57,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:57,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:57,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:57,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:57,694 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:25:57,752 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2020-10-19 20:25:57,753 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) [2020-10-19 20:25:57,768 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:57,773 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:25:57,773 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:25:57,774 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 [] [2020-10-19 20:25:57,834 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-19 20:25:57,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:25:57,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:25:57,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:25:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:25:57,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:25:57,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:25:57,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:25:57,951 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 [2020-10-19 20:25:57,953 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states. Second operand 3 states. [2020-10-19 20:25:58,017 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states.. Second operand 3 states. Result 45 states and 64 transitions. Complement of second has 7 states. [2020-10-19 20:25:58,018 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 [2020-10-19 20:25:58,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 20:25:58,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-10-19 20:25:58,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-19 20:25:58,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:58,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-19 20:25:58,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:58,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-19 20:25:58,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:58,027 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 64 transitions. [2020-10-19 20:25:58,032 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-19 20:25:58,036 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 15 states and 20 transitions. [2020-10-19 20:25:58,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-19 20:25:58,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-19 20:25:58,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2020-10-19 20:25:58,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:25:58,040 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-10-19 20:25:58,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2020-10-19 20:25:58,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-19 20:25:58,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-19 20:25:58,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2020-10-19 20:25:58,072 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-10-19 20:25:58,072 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-10-19 20:25:58,073 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 20:25:58,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2020-10-19 20:25:58,074 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-19 20:25:58,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:25:58,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:25:58,075 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:25:58,075 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:25:58,075 INFO L794 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 146#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 142#L524 assume !(main_~length1~0 < 1); 143#L524-2 assume !(main_~length2~0 < 1); 136#L527-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 137#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 150#L533-4 main_~i~1 := 0; 141#L537-3 [2020-10-19 20:25:58,076 INFO L796 eck$LassoCheckResult]: Loop: 141#L537-3 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; 140#L537-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 141#L537-3 [2020-10-19 20:25:58,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:58,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2020-10-19 20:25:58,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:58,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067955529] [2020-10-19 20:25:58,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:58,091 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:58,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:58,106 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:58,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:58,107 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2020-10-19 20:25:58,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:58,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942446334] [2020-10-19 20:25:58,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:58,115 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:58,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:58,123 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:58,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:58,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2020-10-19 20:25:58,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:58,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793820421] [2020-10-19 20:25:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:58,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:58,160 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:58,165 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:58,374 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-19 20:25:58,448 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:25:58,448 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:25:58,448 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:25:58,448 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:25:58,449 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:25:58,449 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:58,449 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:25:58,449 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:25:58,449 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-1.i_Iteration2_Lasso [2020-10-19 20:25:58,449 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:25:58,450 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:25:58,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:58,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:59,050 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:25:59,051 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 [2020-10-19 20:25:59,058 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 [2020-10-19 20:25:59,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:59,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:59,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:59,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:59,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:59,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:59,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:59,063 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) [2020-10-19 20:25:59,109 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 [2020-10-19 20:25:59,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:59,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:59,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:59,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:59,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:59,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:59,113 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 [2020-10-19 20:25:59,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:59,153 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 [2020-10-19 20:25:59,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:59,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:59,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:59,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:59,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:59,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:59,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:59,158 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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:59,195 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 [2020-10-19 20:25:59,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:59,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:59,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:59,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:59,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:59,200 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:59,204 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) [2020-10-19 20:25:59,247 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 [2020-10-19 20:25:59,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:59,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:59,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:59,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:59,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:59,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:59,250 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 [2020-10-19 20:25:59,253 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) [2020-10-19 20:25:59,299 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 [2020-10-19 20:25:59,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:59,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:59,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:59,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:59,305 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:59,305 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:59,310 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:59,347 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 [2020-10-19 20:25:59,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:59,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:59,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:59,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:59,351 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:59,351 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:59,356 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:25:59,398 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 [2020-10-19 20:25:59,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:59,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:59,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:59,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:59,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:59,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:59,410 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:59,440 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 [2020-10-19 20:25:59,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:59,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:59,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:59,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:59,449 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:59,450 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:59,463 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:25:59,502 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2020-10-19 20:25:59,503 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:59,506 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 20:25:59,513 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 20:25:59,514 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:25:59,514 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*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2 - 1*ULTIMATE.start_main_~length2~0 >= 0] [2020-10-19 20:25:59,586 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2020-10-19 20:25:59,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 20:25:59,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:25:59,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 20:25:59,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:25:59,732 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 20:25:59,733 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 [2020-10-19 20:25:59,734 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 20:25:59,759 INFO L625 ElimStorePlain]: treesize reduction 10, result has 61.5 percent of original size [2020-10-19 20:25:59,762 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 20:25:59,763 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:11, output treesize:7 [2020-10-19 20:25:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:25:59,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 20:25:59,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:25:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:25:59,806 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 [2020-10-19 20:25:59,807 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-10-19 20:25:59,871 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 21 states and 30 transitions. Complement of second has 7 states. [2020-10-19 20:25:59,872 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 [2020-10-19 20:25:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 20:25:59,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-10-19 20:25:59,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-19 20:25:59,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:59,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-19 20:25:59,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:59,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-19 20:25:59,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:59,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 30 transitions. [2020-10-19 20:25:59,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 20:25:59,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 22 transitions. [2020-10-19 20:25:59,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-19 20:25:59,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-19 20:25:59,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2020-10-19 20:25:59,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:25:59,884 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2020-10-19 20:25:59,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2020-10-19 20:25:59,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-19 20:25:59,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-19 20:25:59,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2020-10-19 20:25:59,888 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2020-10-19 20:25:59,889 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2020-10-19 20:25:59,889 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 20:25:59,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2020-10-19 20:25:59,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 20:25:59,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:25:59,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:25:59,892 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:25:59,892 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 20:25:59,893 INFO L794 eck$LassoCheckResult]: Stem: 270#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 269#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; 264#L524 assume !(main_~length1~0 < 1); 265#L524-2 assume !(main_~length2~0 < 1); 258#L527-1 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; 259#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 273#L533-4 main_~i~1 := 0; 267#L537-3 assume !(main_~i~1 < main_~length2~0 - 1); 268#L537-4 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);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, cstrcmp_#t~mem6, cstrcmp_#t~mem3, cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, cstrcmp_#t~mem4, cstrcmp_#t~mem8, cstrcmp_#t~pre7.base, cstrcmp_#t~pre7.offset, cstrcmp_#t~mem9, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset; 266#L516-3 [2020-10-19 20:25:59,893 INFO L796 eck$LassoCheckResult]: Loop: 266#L516-3 call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post2.base, 1 + cstrcmp_#t~post2.offset;call cstrcmp_#t~mem4 := read~int(cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, 1); 260#L516-1 assume !!(cstrcmp_#t~mem3 == cstrcmp_#t~mem4);havoc cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post5.base, 1 + cstrcmp_#t~post5.offset;call cstrcmp_#t~mem6 := read~int(cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, 1); 261#L517 assume !(0 == cstrcmp_#t~mem6);havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset;havoc cstrcmp_#t~mem6; 266#L516-3 [2020-10-19 20:25:59,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:59,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2020-10-19 20:25:59,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:59,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077760899] [2020-10-19 20:25:59,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:59,935 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:59,957 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:59,962 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:59,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:59,963 INFO L82 PathProgramCache]: Analyzing trace with hash 77620, now seen corresponding path program 1 times [2020-10-19 20:25:59,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:59,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267050916] [2020-10-19 20:25:59,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:59,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:59,979 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:59,982 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:59,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:59,983 INFO L82 PathProgramCache]: Analyzing trace with hash -296047681, now seen corresponding path program 1 times [2020-10-19 20:25:59,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:59,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880149984] [2020-10-19 20:25:59,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:00,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:26:00,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880149984] [2020-10-19 20:26:00,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:26:00,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 20:26:00,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036426255] [2020-10-19 20:26:00,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:26:00,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 20:26:00,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 20:26:00,357 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand 7 states. [2020-10-19 20:26:00,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:26:00,480 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2020-10-19 20:26:00,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 20:26:00,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2020-10-19 20:26:00,482 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 20:26:00,483 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 22 transitions. [2020-10-19 20:26:00,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-19 20:26:00,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-19 20:26:00,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2020-10-19 20:26:00,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:26:00,484 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-10-19 20:26:00,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2020-10-19 20:26:00,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-10-19 20:26:00,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-19 20:26:00,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2020-10-19 20:26:00,491 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-10-19 20:26:00,491 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-10-19 20:26:00,492 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 20:26:00,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2020-10-19 20:26:00,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 20:26:00,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:26:00,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:26:00,495 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:26:00,496 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 20:26:00,496 INFO L794 eck$LassoCheckResult]: Stem: 329#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 326#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; 321#L524 assume !(main_~length1~0 < 1); 322#L524-2 assume !(main_~length2~0 < 1); 315#L527-1 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; 316#L533-3 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; 327#L533-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 328#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 330#L533-4 main_~i~1 := 0; 324#L537-3 assume !(main_~i~1 < main_~length2~0 - 1); 325#L537-4 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);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, cstrcmp_#t~mem6, cstrcmp_#t~mem3, cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, cstrcmp_#t~mem4, cstrcmp_#t~mem8, cstrcmp_#t~pre7.base, cstrcmp_#t~pre7.offset, cstrcmp_#t~mem9, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset; 323#L516-3 [2020-10-19 20:26:00,496 INFO L796 eck$LassoCheckResult]: Loop: 323#L516-3 call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post2.base, 1 + cstrcmp_#t~post2.offset;call cstrcmp_#t~mem4 := read~int(cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, 1); 317#L516-1 assume !!(cstrcmp_#t~mem3 == cstrcmp_#t~mem4);havoc cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post5.base, 1 + cstrcmp_#t~post5.offset;call cstrcmp_#t~mem6 := read~int(cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, 1); 318#L517 assume !(0 == cstrcmp_#t~mem6);havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset;havoc cstrcmp_#t~mem6; 323#L516-3 [2020-10-19 20:26:00,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:00,497 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2020-10-19 20:26:00,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:00,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717241838] [2020-10-19 20:26:00,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:00,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:00,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:00,543 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:00,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:00,544 INFO L82 PathProgramCache]: Analyzing trace with hash 77620, now seen corresponding path program 2 times [2020-10-19 20:26:00,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:00,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096972386] [2020-10-19 20:26:00,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:00,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:00,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:00,560 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:00,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:00,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1311502365, now seen corresponding path program 1 times [2020-10-19 20:26:00,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:00,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748001053] [2020-10-19 20:26:00,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:00,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 20:26:00,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748001053] [2020-10-19 20:26:00,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:26:00,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-19 20:26:00,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294833069] [2020-10-19 20:26:00,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:26:00,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 20:26:00,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-19 20:26:00,891 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 9 states. [2020-10-19 20:26:00,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:26:00,990 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2020-10-19 20:26:00,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 20:26:00,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2020-10-19 20:26:00,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 20:26:00,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 17 states and 21 transitions. [2020-10-19 20:26:00,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-19 20:26:00,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-19 20:26:00,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2020-10-19 20:26:00,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:26:00,993 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-10-19 20:26:00,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2020-10-19 20:26:00,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-10-19 20:26:00,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-19 20:26:00,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2020-10-19 20:26:00,996 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2020-10-19 20:26:00,996 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2020-10-19 20:26:00,996 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 20:26:00,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2020-10-19 20:26:00,997 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 20:26:00,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:26:00,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:26:00,998 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:26:00,998 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 20:26:00,999 INFO L794 eck$LassoCheckResult]: Stem: 384#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 383#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; 378#L524 assume !(main_~length1~0 < 1); 379#L524-2 assume !(main_~length2~0 < 1); 372#L527-1 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; 373#L533-3 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; 385#L533-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 386#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 387#L533-4 main_~i~1 := 0; 381#L537-3 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; 376#L537-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 377#L537-3 assume !(main_~i~1 < main_~length2~0 - 1); 382#L537-4 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);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, cstrcmp_#t~mem6, cstrcmp_#t~mem3, cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, cstrcmp_#t~mem4, cstrcmp_#t~mem8, cstrcmp_#t~pre7.base, cstrcmp_#t~pre7.offset, cstrcmp_#t~mem9, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset; 380#L516-3 [2020-10-19 20:26:00,999 INFO L796 eck$LassoCheckResult]: Loop: 380#L516-3 call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post2.base, 1 + cstrcmp_#t~post2.offset;call cstrcmp_#t~mem4 := read~int(cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, 1); 374#L516-1 assume !!(cstrcmp_#t~mem3 == cstrcmp_#t~mem4);havoc cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post5.base, 1 + cstrcmp_#t~post5.offset;call cstrcmp_#t~mem6 := read~int(cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, 1); 375#L517 assume !(0 == cstrcmp_#t~mem6);havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset;havoc cstrcmp_#t~mem6; 380#L516-3 [2020-10-19 20:26:00,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:00,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2020-10-19 20:26:01,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:01,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335795087] [2020-10-19 20:26:01,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:01,014 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:01,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:01,030 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:01,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:01,031 INFO L82 PathProgramCache]: Analyzing trace with hash 77620, now seen corresponding path program 3 times [2020-10-19 20:26:01,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:01,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049365081] [2020-10-19 20:26:01,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:01,038 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:01,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:01,044 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:01,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:01,045 INFO L82 PathProgramCache]: Analyzing trace with hash -718433093, now seen corresponding path program 1 times [2020-10-19 20:26:01,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:01,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345895011] [2020-10-19 20:26:01,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:01,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:01,125 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:01,132 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:01,904 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 111 [2020-10-19 20:26:02,146 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-19 20:26:02,149 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:26:02,149 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:26:02,149 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:26:02,149 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:26:02,149 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:26:02,149 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:02,149 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:26:02,150 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:26:02,150 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-1.i_Iteration5_Lasso [2020-10-19 20:26:02,150 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:26:02,150 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:26:02,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:02,811 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 88 [2020-10-19 20:26:03,008 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2020-10-19 20:26:03,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:03,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:03,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:03,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:03,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:03,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:03,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:03,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:03,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:03,392 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-10-19 20:26:03,831 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:26:03,831 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:03,838 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 [2020-10-19 20:26:03,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:03,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:03,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:03,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:03,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:03,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:03,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:03,842 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:03,871 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 [2020-10-19 20:26:03,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:03,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:03,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:03,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:03,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:03,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:03,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:03,874 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 [2020-10-19 20:26:03,897 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:03,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:03,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:03,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:03,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:03,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:03,900 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:03,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:03,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:03,924 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:03,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:03,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:03,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:03,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:03,929 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:03,929 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:03,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:03,961 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 [2020-10-19 20:26:03,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:03,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:03,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:03,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:03,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:03,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:03,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:03,966 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:03,988 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 [2020-10-19 20:26:03,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:03,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:03,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:03,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:03,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:03,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:03,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:03,991 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) [2020-10-19 20:26:04,014 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:04,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:04,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:04,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:04,017 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:04,040 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 [2020-10-19 20:26:04,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:04,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:04,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:04,044 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:04,069 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 [2020-10-19 20:26:04,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:04,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:04,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:04,074 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:04,096 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 [2020-10-19 20:26:04,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:04,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:04,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:04,100 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) [2020-10-19 20:26:04,123 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 Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:04,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:04,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,127 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:04,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:04,130 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) [2020-10-19 20:26:04,161 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 [2020-10-19 20:26:04,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:04,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:04,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:04,165 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) [2020-10-19 20:26:04,188 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:04,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:04,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:04,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:04,191 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) [2020-10-19 20:26:04,214 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:04,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:04,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:04,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:04,218 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 [2020-10-19 20:26:04,241 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 [2020-10-19 20:26:04,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:04,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:04,248 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 [2020-10-19 20:26:04,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:04,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:04,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:04,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:04,274 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:04,299 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:04,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:04,303 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:04,310 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 [2020-10-19 20:26:04,331 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 [2020-10-19 20:26:04,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,334 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:04,334 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:04,338 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 [2020-10-19 20:26:04,363 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 [2020-10-19 20:26:04,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:04,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:04,397 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) [2020-10-19 20:26:04,440 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 [2020-10-19 20:26:04,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,442 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:26:04,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,459 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-10-19 20:26:04,460 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:04,481 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 [2020-10-19 20:26:04,503 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 [2020-10-19 20:26:04,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:04,507 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:04,514 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 [2020-10-19 20:26:04,539 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 [2020-10-19 20:26:04,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:04,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:04,546 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:04,567 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 [2020-10-19 20:26:04,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:04,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:04,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:04,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:04,582 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:04,583 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:04,618 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:26:04,746 INFO L443 ModelExtractionUtils]: Simplification made 29 calls to the SMT solver. [2020-10-19 20:26:04,746 INFO L444 ModelExtractionUtils]: 8 out of 55 variables were initially zero. Simplification set additionally 44 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:04,749 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:04,752 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:26:04,752 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:26:04,752 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3, ULTIMATE.start_cstrcmp_~s1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 - 1*ULTIMATE.start_cstrcmp_~s1.offset Supporting invariants [] [2020-10-19 20:26:04,899 INFO L297 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2020-10-19 20:26:04,904 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 20:26:04,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:04,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 24 conjunts are in the unsatisfiable core [2020-10-19 20:26:04,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:26:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:04,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 19 conjunts are in the unsatisfiable core [2020-10-19 20:26:04,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:26:05,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:26:05,036 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-10-19 20:26:05,036 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-10-19 20:26:05,083 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7. Second operand 5 states. Result 20 states and 24 transitions. Complement of second has 7 states. [2020-10-19 20:26:05,083 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 [2020-10-19 20:26:05,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 20:26:05,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-10-19 20:26:05,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-19 20:26:05,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:05,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2020-10-19 20:26:05,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:05,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2020-10-19 20:26:05,086 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:05,086 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2020-10-19 20:26:05,087 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:26:05,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2020-10-19 20:26:05,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 20:26:05,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 20:26:05,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 20:26:05,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:26:05,088 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:26:05,088 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:26:05,088 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:26:05,088 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 20:26:05,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 20:26:05,088 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:26:05,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 20:26:05,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 08:26:05 BoogieIcfgContainer [2020-10-19 20:26:05,096 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 20:26:05,097 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 20:26:05,097 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 20:26:05,097 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 20:26:05,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:25:55" (3/4) ... [2020-10-19 20:26:05,101 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 20:26:05,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 20:26:05,103 INFO L168 Benchmark]: Toolchain (without parser) took 10386.68 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 315.6 MB). Free memory was 957.3 MB in the beginning and 844.6 MB in the end (delta: 112.6 MB). Peak memory consumption was 428.3 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:05,104 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:26:05,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:05,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:26:05,106 INFO L168 Benchmark]: Boogie Preprocessor took 31.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:05,106 INFO L168 Benchmark]: RCFGBuilder took 379.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:05,107 INFO L168 Benchmark]: BuchiAutomizer took 9167.41 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 184.0 MB). Free memory was 1.1 GB in the beginning and 844.6 MB in the end (delta: 241.6 MB). Peak memory consumption was 425.6 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:05,107 INFO L168 Benchmark]: Witness Printer took 5.00 ms. Allocated memory is still 1.3 GB. Free memory is still 844.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:26:05,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 741.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 379.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9167.41 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 184.0 MB). Free memory was 1.1 GB in the beginning and 844.6 MB in the end (delta: 241.6 MB). Peak memory consumption was 425.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.00 ms. Allocated memory is still 1.3 GB. Free memory is still 844.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + 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 (length2 * sizeof(char))] + -1 * s1 and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 8.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 64 SDtfs, 115 SDslu, 104 SDs, 0 SdLazy, 114 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital206 mio100 ax110 hnf98 lsp84 ukn73 mio100 lsp51 div100 bol100 ite100 ukn100 eq176 hnf89 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 6 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...