./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/cstrcmp-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.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/cstrcmp-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df3db790fa8159689a8da2e25598b93c123cddf7 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 08:17:58,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 08:17:58,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 08:17:58,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 08:17:58,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 08:17:58,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 08:17:58,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 08:17:58,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 08:17:58,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 08:17:58,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 08:17:58,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 08:17:58,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 08:17:58,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 08:17:58,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 08:17:58,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 08:17:58,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 08:17:58,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 08:17:58,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 08:17:58,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 08:17:58,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 08:17:58,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 08:17:58,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 08:17:58,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 08:17:58,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 08:17:58,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 08:17:58,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 08:17:58,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 08:17:58,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 08:17:58,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 08:17:58,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 08:17:58,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 08:17:58,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 08:17:58,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 08:17:58,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 08:17:58,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 08:17:58,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 08:17:58,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 08:17:58,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 08:17:58,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 08:17:58,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 08:17:58,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 08:17:58,339 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 08:17:58,364 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 08:17:58,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 08:17:58,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 08:17:58,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 08:17:58,366 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 08:17:58,367 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 08:17:58,367 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 08:17:58,367 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 08:17:58,367 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 08:17:58,368 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 08:17:58,368 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 08:17:58,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 08:17:58,368 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 08:17:58,369 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 08:17:58,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 08:17:58,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 08:17:58,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 08:17:58,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 08:17:58,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 08:17:58,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 08:17:58,370 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 08:17:58,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 08:17:58,371 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 08:17:58,371 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 08:17:58,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 08:17:58,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 08:17:58,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 08:17:58,372 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 08:17:58,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 08:17:58,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 08:17:58,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 08:17:58,373 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 08:17:58,375 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 08:17:58,375 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 -> df3db790fa8159689a8da2e25598b93c123cddf7 [2020-10-20 08:17:58,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 08:17:58,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 08:17:58,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 08:17:58,597 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 08:17:58,598 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 08:17:58,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/cstrcmp-alloca-2.i [2020-10-20 08:17:58,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42a13d1a6/8d65ac5e39b04a889b97299088f1bdc8/FLAG7bfb2df4b [2020-10-20 08:17:59,183 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 08:17:59,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/cstrcmp-alloca-2.i [2020-10-20 08:17:59,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42a13d1a6/8d65ac5e39b04a889b97299088f1bdc8/FLAG7bfb2df4b [2020-10-20 08:17:59,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42a13d1a6/8d65ac5e39b04a889b97299088f1bdc8 [2020-10-20 08:17:59,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 08:17:59,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 08:17:59,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 08:17:59,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 08:17:59,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 08:17:59,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:17:59" (1/1) ... [2020-10-20 08:17:59,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f754e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:17:59, skipping insertion in model container [2020-10-20 08:17:59,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:17:59" (1/1) ... [2020-10-20 08:17:59,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 08:17:59,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 08:17:59,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:17:59,986 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 08:18:00,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:18:00,137 INFO L208 MainTranslator]: Completed translation [2020-10-20 08:18:00,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:00 WrapperNode [2020-10-20 08:18:00,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 08:18:00,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 08:18:00,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 08:18:00,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 08:18:00,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:00" (1/1) ... [2020-10-20 08:18:00,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:00" (1/1) ... [2020-10-20 08:18:00,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 08:18:00,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 08:18:00,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 08:18:00,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 08:18:00,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:00" (1/1) ... [2020-10-20 08:18:00,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:00" (1/1) ... [2020-10-20 08:18:00,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:00" (1/1) ... [2020-10-20 08:18:00,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:00" (1/1) ... [2020-10-20 08:18:00,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:00" (1/1) ... [2020-10-20 08:18:00,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:00" (1/1) ... [2020-10-20 08:18:00,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:00" (1/1) ... [2020-10-20 08:18:00,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 08:18:00,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 08:18:00,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 08:18:00,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 08:18:00,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:00" (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 [2020-10-20 08:18:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 08:18:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 08:18:00,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 08:18:00,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 08:18:00,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 08:18:00,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 08:18:00,680 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 08:18:00,680 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-20 08:18:00,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:18:00 BoogieIcfgContainer [2020-10-20 08:18:00,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 08:18:00,682 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 08:18:00,683 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 08:18:00,686 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 08:18:00,687 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:18:00,687 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 08:17:59" (1/3) ... [2020-10-20 08:18:00,688 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a470a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:18:00, skipping insertion in model container [2020-10-20 08:18:00,688 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:18:00,689 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:00" (2/3) ... [2020-10-20 08:18:00,689 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a470a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:18:00, skipping insertion in model container [2020-10-20 08:18:00,689 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:18:00,689 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:18:00" (3/3) ... [2020-10-20 08:18:00,691 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrcmp-alloca-2.i [2020-10-20 08:18:00,732 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 08:18:00,732 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 08:18:00,732 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 08:18:00,732 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 08:18:00,733 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 08:18:00,733 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 08:18:00,733 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 08:18:00,733 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 08:18:00,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-10-20 08:18:00,773 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-20 08:18:00,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:00,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:00,780 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 08:18:00,780 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:00,781 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 08:18:00,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-10-20 08:18:00,783 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-20 08:18:00,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:00,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:00,784 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 08:18:00,784 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:00,790 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 20#L528true assume !(main_~length1~0 < 1); 4#L528-2true assume !(main_~length2~0 < 1); 16#L531-1true call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 7#L537-3true [2020-10-20 08:18:00,791 INFO L796 eck$LassoCheckResult]: Loop: 7#L537-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 6#L537-2true main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 7#L537-3true [2020-10-20 08:18:00,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:00,796 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-10-20 08:18:00,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:00,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167066853] [2020-10-20 08:18:00,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:00,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:00,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:00,974 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:00,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:00,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2020-10-20 08:18:00,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:00,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329025263] [2020-10-20 08:18:00,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:01,007 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:01,020 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:01,025 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:01,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:01,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2020-10-20 08:18:01,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:01,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536883838] [2020-10-20 08:18:01,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:01,079 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:01,097 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:01,102 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:01,336 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-10-20 08:18:01,433 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:18:01,434 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:18:01,434 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:18:01,434 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:18:01,435 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:18:01,435 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:01,435 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:18:01,435 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:18:01,435 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcmp-alloca-2.i_Iteration1_Lasso [2020-10-20 08:18:01,435 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:18:01,436 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:18:01,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:01,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:02,040 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:18:02,046 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) [2020-10-20 08:18:02,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:18:02,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:02,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,062 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:02,062 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 [2020-10-20 08:18:02,066 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) [2020-10-20 08:18:02,111 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:18:02,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:02,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:02,114 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 [2020-10-20 08:18:02,121 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) [2020-10-20 08:18:02,162 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 [2020-10-20 08:18:02,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:02,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:02,165 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 [2020-10-20 08:18:02,167 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:02,216 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 [2020-10-20 08:18:02,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:02,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:02,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:18:02,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,278 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:02,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:02,283 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 [2020-10-20 08:18:02,328 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 [2020-10-20 08:18:02,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,336 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:02,336 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:02,343 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:02,392 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 [2020-10-20 08:18:02,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,402 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:02,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,411 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:02,458 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:02,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:02,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:02,464 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,508 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 [2020-10-20 08:18:02,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,514 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:02,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:02,521 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,558 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 [2020-10-20 08:18:02,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:02,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:02,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:02,622 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 [2020-10-20 08:18:02,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:02,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,626 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:02,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:02,628 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:02,669 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 [2020-10-20 08:18:02,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:02,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:02,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:02,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:02,691 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:02,691 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,706 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:18:02,735 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-10-20 08:18:02,735 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:02,741 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:02,768 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:18:02,769 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:18:02,770 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 [] [2020-10-20 08:18:02,861 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-20 08:18:02,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:02,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:18:02,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:02,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:18:02,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:02,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:02,974 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 [2020-10-20 08:18:02,976 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 3 states. [2020-10-20 08:18:03,058 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 3 states. Result 51 states and 73 transitions. Complement of second has 7 states. [2020-10-20 08:18:03,059 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 [2020-10-20 08:18:03,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:18:03,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2020-10-20 08:18:03,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-20 08:18:03,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:03,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-20 08:18:03,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:03,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-20 08:18:03,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:03,070 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 73 transitions. [2020-10-20 08:18:03,080 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-20 08:18:03,088 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 15 states and 21 transitions. [2020-10-20 08:18:03,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-20 08:18:03,090 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-20 08:18:03,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2020-10-20 08:18:03,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:03,092 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2020-10-20 08:18:03,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2020-10-20 08:18:03,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-20 08:18:03,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-20 08:18:03,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2020-10-20 08:18:03,121 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2020-10-20 08:18:03,121 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2020-10-20 08:18:03,121 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 08:18:03,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2020-10-20 08:18:03,122 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-20 08:18:03,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:03,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:03,123 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:03,123 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:03,123 INFO L794 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 154#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 155#L528 assume !(main_~length1~0 < 1); 146#L528-2 assume !(main_~length2~0 < 1); 147#L531-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 151#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 152#L537-4 main_~i~1 := 0; 153#L542-3 [2020-10-20 08:18:03,123 INFO L796 eck$LassoCheckResult]: Loop: 153#L542-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 157#L542-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 153#L542-3 [2020-10-20 08:18:03,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:03,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2020-10-20 08:18:03,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:03,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797833503] [2020-10-20 08:18:03,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:03,137 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:03,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:03,152 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:03,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:03,153 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2020-10-20 08:18:03,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:03,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182740123] [2020-10-20 08:18:03,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:03,160 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:03,164 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:03,166 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:03,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:03,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2020-10-20 08:18:03,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:03,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263129799] [2020-10-20 08:18:03,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:03,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:03,227 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:03,237 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:03,410 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-20 08:18:03,491 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:18:03,491 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:18:03,491 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:18:03,491 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:18:03,491 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:18:03,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:03,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:18:03,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:18:03,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcmp-alloca-2.i_Iteration2_Lasso [2020-10-20 08:18:03,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:18:03,493 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:18:03,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:03,952 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:18:03,952 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:03,958 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 [2020-10-20 08:18:03,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:03,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:03,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:03,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:03,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:03,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:03,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:03,963 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 [2020-10-20 08:18:04,000 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 [2020-10-20 08:18:04,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:04,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:04,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:04,005 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:04,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:18:04,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:04,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:04,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:04,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:04,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:04,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:04,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:04,097 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:04,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:04,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:04,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:04,133 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 08:18:04,160 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 [2020-10-20 08:18:04,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:04,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:04,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:04,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:04,198 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 [2020-10-20 08:18:04,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:04,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:04,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:04,204 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:04,243 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 [2020-10-20 08:18:04,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,250 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:04,250 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:04,258 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:04,290 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 [2020-10-20 08:18:04,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:04,294 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:04,310 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 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 [2020-10-20 08:18:04,339 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 [2020-10-20 08:18:04,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,344 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:04,344 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:04,351 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 [2020-10-20 08:18:04,390 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 [2020-10-20 08:18:04,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:04,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:04,412 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:04,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:18:04,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:04,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:04,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:04,443 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:04,465 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:04,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,468 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:04,468 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:04,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:04,496 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:04,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:04,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:04,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:04,500 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 [2020-10-20 08:18:04,522 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 [2020-10-20 08:18:04,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:04,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:04,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:04,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:04,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:04,528 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:04,541 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:18:04,573 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-10-20 08:18:04,573 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:04,578 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:04,582 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:18:04,582 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:18:04,583 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2020-10-20 08:18:04,657 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-20 08:18:04,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:04,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:18:04,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:04,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:18:04,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:04,712 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 [2020-10-20 08:18:04,712 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-10-20 08:18:04,737 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 21 states and 32 transitions. Complement of second has 6 states. [2020-10-20 08:18:04,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 08:18:04,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:18:04,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-10-20 08:18:04,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-20 08:18:04,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:04,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-20 08:18:04,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:04,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-20 08:18:04,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:04,741 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 32 transitions. [2020-10-20 08:18:04,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 08:18:04,743 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 23 transitions. [2020-10-20 08:18:04,743 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-20 08:18:04,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-20 08:18:04,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 23 transitions. [2020-10-20 08:18:04,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:04,744 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2020-10-20 08:18:04,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 23 transitions. [2020-10-20 08:18:04,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-20 08:18:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-20 08:18:04,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2020-10-20 08:18:04,746 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2020-10-20 08:18:04,746 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2020-10-20 08:18:04,746 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 08:18:04,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 23 transitions. [2020-10-20 08:18:04,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 08:18:04,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:04,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:04,748 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:04,748 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 08:18:04,748 INFO L794 eck$LassoCheckResult]: Stem: 266#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 264#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, 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~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 265#L528 assume !(main_~length1~0 < 1); 256#L528-2 assume !(main_~length2~0 < 1); 257#L531-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 261#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 262#L537-4 main_~i~1 := 0; 263#L542-3 assume !(main_~i~1 < main_~length2~0 - 1); 269#L542-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~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~post6.base, cstrcmp_#t~post6.offset, cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset, cstrcmp_#t~mem2, cstrcmp_#t~mem3, cstrcmp_#t~mem4, cstrcmp_#t~short5, cstrcmp_#t~mem8, cstrcmp_#t~mem9, cstrcmp_#t~ite10, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset, cstrcmp_~uc1~0, cstrcmp_~uc2~0;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;havoc cstrcmp_~uc1~0;havoc cstrcmp_~uc2~0; 258#L517-5 [2020-10-20 08:18:04,748 INFO L796 eck$LassoCheckResult]: Loop: 258#L517-5 call cstrcmp_#t~mem2 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~short5 := 0 != cstrcmp_#t~mem2; 254#L517-1 assume cstrcmp_#t~short5;call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);call cstrcmp_#t~mem4 := read~int(cstrcmp_~s2.base, cstrcmp_~s2.offset, 1);cstrcmp_#t~short5 := cstrcmp_#t~mem3 == cstrcmp_#t~mem4; 255#L517-3 assume !!cstrcmp_#t~short5;havoc cstrcmp_#t~mem2;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;havoc cstrcmp_#t~short5;cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post6.base, 1 + cstrcmp_#t~post6.offset;havoc cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset;cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post7.base, 1 + cstrcmp_#t~post7.offset;havoc cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset; 258#L517-5 [2020-10-20 08:18:04,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:04,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2020-10-20 08:18:04,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:04,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174225164] [2020-10-20 08:18:04,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:04,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:04,782 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:04,787 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:04,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:04,787 INFO L82 PathProgramCache]: Analyzing trace with hash 77559, now seen corresponding path program 1 times [2020-10-20 08:18:04,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:04,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207535034] [2020-10-20 08:18:04,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:04,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:04,802 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:04,805 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:04,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:04,805 INFO L82 PathProgramCache]: Analyzing trace with hash -296047742, now seen corresponding path program 1 times [2020-10-20 08:18:04,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:04,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148234196] [2020-10-20 08:18:04,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:04,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:04,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148234196] [2020-10-20 08:18:04,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:18:04,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 08:18:04,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042618603] [2020-10-20 08:18:05,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:18:05,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 08:18:05,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-20 08:18:05,132 INFO L87 Difference]: Start difference. First operand 16 states and 23 transitions. cyclomatic complexity: 10 Second operand 7 states. [2020-10-20 08:18:05,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:18:05,240 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-10-20 08:18:05,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 08:18:05,241 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 33 transitions. [2020-10-20 08:18:05,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 08:18:05,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 17 states and 22 transitions. [2020-10-20 08:18:05,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-20 08:18:05,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-20 08:18:05,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2020-10-20 08:18:05,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:05,243 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-10-20 08:18:05,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2020-10-20 08:18:05,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-10-20 08:18:05,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-20 08:18:05,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2020-10-20 08:18:05,246 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-10-20 08:18:05,246 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-10-20 08:18:05,247 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 08:18:05,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2020-10-20 08:18:05,248 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 08:18:05,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:05,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:05,249 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:05,249 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 08:18:05,249 INFO L794 eck$LassoCheckResult]: Stem: 326#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 324#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, 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~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 325#L528 assume !(main_~length1~0 < 1); 316#L528-2 assume !(main_~length2~0 < 1); 317#L531-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 321#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 319#L537-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 320#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 322#L537-4 main_~i~1 := 0; 323#L542-3 assume !(main_~i~1 < main_~length2~0 - 1); 329#L542-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~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~post6.base, cstrcmp_#t~post6.offset, cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset, cstrcmp_#t~mem2, cstrcmp_#t~mem3, cstrcmp_#t~mem4, cstrcmp_#t~short5, cstrcmp_#t~mem8, cstrcmp_#t~mem9, cstrcmp_#t~ite10, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset, cstrcmp_~uc1~0, cstrcmp_~uc2~0;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;havoc cstrcmp_~uc1~0;havoc cstrcmp_~uc2~0; 318#L517-5 [2020-10-20 08:18:05,249 INFO L796 eck$LassoCheckResult]: Loop: 318#L517-5 call cstrcmp_#t~mem2 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~short5 := 0 != cstrcmp_#t~mem2; 314#L517-1 assume cstrcmp_#t~short5;call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);call cstrcmp_#t~mem4 := read~int(cstrcmp_~s2.base, cstrcmp_~s2.offset, 1);cstrcmp_#t~short5 := cstrcmp_#t~mem3 == cstrcmp_#t~mem4; 315#L517-3 assume !!cstrcmp_#t~short5;havoc cstrcmp_#t~mem2;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;havoc cstrcmp_#t~short5;cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post6.base, 1 + cstrcmp_#t~post6.offset;havoc cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset;cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post7.base, 1 + cstrcmp_#t~post7.offset;havoc cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset; 318#L517-5 [2020-10-20 08:18:05,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:05,250 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2020-10-20 08:18:05,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:05,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347896617] [2020-10-20 08:18:05,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:05,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:05,282 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:05,288 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:05,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:05,288 INFO L82 PathProgramCache]: Analyzing trace with hash 77559, now seen corresponding path program 2 times [2020-10-20 08:18:05,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:05,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928255592] [2020-10-20 08:18:05,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:05,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:05,305 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:05,310 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:05,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:05,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1311502304, now seen corresponding path program 1 times [2020-10-20 08:18:05,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:05,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128878486] [2020-10-20 08:18:05,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:05,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 08:18:05,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128878486] [2020-10-20 08:18:05,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:18:05,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 08:18:05,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768928410] [2020-10-20 08:18:05,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:18:05,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 08:18:05,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-20 08:18:05,675 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 9 states. [2020-10-20 08:18:05,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:18:05,763 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2020-10-20 08:18:05,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 08:18:05,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2020-10-20 08:18:05,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 08:18:05,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 17 states and 21 transitions. [2020-10-20 08:18:05,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-20 08:18:05,766 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-20 08:18:05,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2020-10-20 08:18:05,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:05,766 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-10-20 08:18:05,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2020-10-20 08:18:05,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-10-20 08:18:05,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-20 08:18:05,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2020-10-20 08:18:05,768 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2020-10-20 08:18:05,768 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2020-10-20 08:18:05,768 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 08:18:05,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2020-10-20 08:18:05,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 08:18:05,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:05,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:05,770 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:05,770 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 08:18:05,770 INFO L794 eck$LassoCheckResult]: Stem: 383#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 381#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, 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~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 382#L528 assume !(main_~length1~0 < 1); 373#L528-2 assume !(main_~length2~0 < 1); 374#L531-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 378#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 376#L537-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 377#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 379#L537-4 main_~i~1 := 0; 380#L542-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 384#L542-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 385#L542-3 assume !(main_~i~1 < main_~length2~0 - 1); 386#L542-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~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~post6.base, cstrcmp_#t~post6.offset, cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset, cstrcmp_#t~mem2, cstrcmp_#t~mem3, cstrcmp_#t~mem4, cstrcmp_#t~short5, cstrcmp_#t~mem8, cstrcmp_#t~mem9, cstrcmp_#t~ite10, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset, cstrcmp_~uc1~0, cstrcmp_~uc2~0;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;havoc cstrcmp_~uc1~0;havoc cstrcmp_~uc2~0; 375#L517-5 [2020-10-20 08:18:05,770 INFO L796 eck$LassoCheckResult]: Loop: 375#L517-5 call cstrcmp_#t~mem2 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~short5 := 0 != cstrcmp_#t~mem2; 371#L517-1 assume cstrcmp_#t~short5;call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);call cstrcmp_#t~mem4 := read~int(cstrcmp_~s2.base, cstrcmp_~s2.offset, 1);cstrcmp_#t~short5 := cstrcmp_#t~mem3 == cstrcmp_#t~mem4; 372#L517-3 assume !!cstrcmp_#t~short5;havoc cstrcmp_#t~mem2;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;havoc cstrcmp_#t~short5;cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post6.base, 1 + cstrcmp_#t~post6.offset;havoc cstrcmp_#t~post6.base, cstrcmp_#t~post6.offset;cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post7.base, 1 + cstrcmp_#t~post7.offset;havoc cstrcmp_#t~post7.base, cstrcmp_#t~post7.offset; 375#L517-5 [2020-10-20 08:18:05,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:05,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2020-10-20 08:18:05,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:05,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137478562] [2020-10-20 08:18:05,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:05,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:05,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:05,801 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:05,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:05,801 INFO L82 PathProgramCache]: Analyzing trace with hash 77559, now seen corresponding path program 3 times [2020-10-20 08:18:05,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:05,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729532748] [2020-10-20 08:18:05,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:05,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:05,813 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:05,817 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:05,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:05,818 INFO L82 PathProgramCache]: Analyzing trace with hash -718433154, now seen corresponding path program 1 times [2020-10-20 08:18:05,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:05,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907408996] [2020-10-20 08:18:05,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:05,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:05,890 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:05,901 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:06,009 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-10-20 08:18:06,772 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 111 [2020-10-20 08:18:07,024 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-20 08:18:07,028 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:18:07,028 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:18:07,028 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:18:07,028 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:18:07,028 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:18:07,028 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:07,028 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:18:07,028 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:18:07,028 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcmp-alloca-2.i_Iteration5_Lasso [2020-10-20 08:18:07,029 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:18:07,029 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:18:07,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,573 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 88 [2020-10-20 08:18:07,759 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2020-10-20 08:18:07,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:08,082 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-10-20 08:18:08,594 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:18:08,594 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 08:18:08,602 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 [2020-10-20 08:18:08,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,606 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,637 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 [2020-10-20 08:18:08,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:08,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:08,640 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:08,641 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) [2020-10-20 08:18:08,663 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 [2020-10-20 08:18:08,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:08,667 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:08,671 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:08,699 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,701 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:18:08,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,709 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-10-20 08:18:08,710 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-20 08:18:08,728 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 [2020-10-20 08:18:08,753 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 [2020-10-20 08:18:08,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,757 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:08,757 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:08,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,790 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 [2020-10-20 08:18:08,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:08,811 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:08,817 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 [2020-10-20 08:18:08,837 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 [2020-10-20 08:18:08,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:08,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:08,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:08,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:08,853 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:08,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:08,883 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:18:09,017 INFO L443 ModelExtractionUtils]: Simplification made 30 calls to the SMT solver. [2020-10-20 08:18:09,017 INFO L444 ModelExtractionUtils]: 18 out of 55 variables were initially zero. Simplification set additionally 34 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:09,021 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,024 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:18:09,024 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:18:09,025 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcmp_~s2.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_3) = -1*ULTIMATE.start_cstrcmp_~s2.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_3 Supporting invariants [] [2020-10-20 08:18:09,154 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2020-10-20 08:18:09,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 08:18:09,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:09,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 08:18:09,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:09,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 08:18:09,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:09,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:09,247 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 [2020-10-20 08:18:09,248 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-10-20 08:18:09,283 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7. Second operand 5 states. Result 19 states and 24 transitions. Complement of second has 7 states. [2020-10-20 08:18:09,283 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 [2020-10-20 08:18:09,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 08:18:09,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-10-20 08:18:09,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-20 08:18:09,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:09,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 16 letters. Loop has 3 letters. [2020-10-20 08:18:09,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:09,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 13 letters. Loop has 6 letters. [2020-10-20 08:18:09,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:09,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2020-10-20 08:18:09,286 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:18:09,286 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2020-10-20 08:18:09,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 08:18:09,286 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 08:18:09,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 08:18:09,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:09,287 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:18:09,287 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:18:09,287 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:18:09,287 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 08:18:09,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 08:18:09,287 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:18:09,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 08:18:09,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 08:18:09 BoogieIcfgContainer [2020-10-20 08:18:09,294 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 08:18:09,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 08:18:09,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 08:18:09,295 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 08:18:09,296 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:18:00" (3/4) ... [2020-10-20 08:18:09,300 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 08:18:09,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 08:18:09,302 INFO L168 Benchmark]: Toolchain (without parser) took 9819.97 ms. Allocated memory was 35.1 MB in the beginning and 91.8 MB in the end (delta: 56.6 MB). Free memory was 11.9 MB in the beginning and 16.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 51.7 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,303 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 34.1 MB. Free memory was 19.3 MB in the beginning and 19.2 MB in the end (delta: 31.2 kB). Peak memory consumption was 31.2 kB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.73 ms. Allocated memory was 35.1 MB in the beginning and 44.0 MB in the end (delta: 8.9 MB). Free memory was 11.0 MB in the beginning and 16.1 MB in the end (delta: -5.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.32 ms. Allocated memory is still 44.0 MB. Free memory was 16.0 MB in the beginning and 27.1 MB in the end (delta: -11.1 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,305 INFO L168 Benchmark]: Boogie Preprocessor took 30.80 ms. Allocated memory is still 44.0 MB. Free memory was 27.1 MB in the beginning and 25.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,306 INFO L168 Benchmark]: RCFGBuilder took 440.40 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 25.4 MB in the beginning and 23.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,307 INFO L168 Benchmark]: BuchiAutomizer took 8612.01 ms. Allocated memory was 46.1 MB in the beginning and 91.8 MB in the end (delta: 45.6 MB). Free memory was 23.1 MB in the beginning and 16.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 51.9 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:09,307 INFO L168 Benchmark]: Witness Printer took 5.13 ms. Allocated memory is still 91.8 MB. Free memory is still 16.8 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 08:18:09,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 34.1 MB. Free memory was 19.3 MB in the beginning and 19.2 MB in the end (delta: 31.2 kB). Peak memory consumption was 31.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 649.73 ms. Allocated memory was 35.1 MB in the beginning and 44.0 MB in the end (delta: 8.9 MB). Free memory was 11.0 MB in the beginning and 16.1 MB in the end (delta: -5.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 71.32 ms. Allocated memory is still 44.0 MB. Free memory was 16.0 MB in the beginning and 27.1 MB in the end (delta: -11.1 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 30.80 ms. Allocated memory is still 44.0 MB. Free memory was 27.1 MB in the beginning and 25.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 440.40 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 25.4 MB in the beginning and 23.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 8612.01 ms. Allocated memory was 46.1 MB in the beginning and 91.8 MB in the end (delta: 45.6 MB). Free memory was 23.1 MB in the beginning and 16.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 51.9 MB. Max. memory is 14.3 GB. * Witness Printer took 5.13 ms. Allocated memory is still 91.8 MB. Free memory is still 16.8 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + length2 and consists of 4 locations. One deterministic module has affine ranking function -1 * s2 + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] 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 8.5s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 7.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. 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: 73 SDtfs, 132 SDslu, 102 SDs, 0 SdLazy, 98 SolverSat, 23 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 smp98 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms 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...