./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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/termination-memory-alloca/openbsd_cbzero-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash a9159a955cf189961722bfb66b0369c050bac9ac ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:36:15,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:36:15,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:36:15,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:36:15,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:36:15,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:36:15,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:36:15,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:36:15,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:36:15,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:36:15,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:36:15,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:36:15,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:36:15,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:36:15,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:36:15,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:36:15,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:36:15,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:36:15,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:36:15,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:36:15,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:36:15,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:36:15,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:36:15,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:36:15,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:36:15,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:36:15,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:36:15,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:36:15,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:36:15,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:36:15,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:36:15,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:36:15,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:36:15,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:36:15,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:36:15,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:36:15,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:36:15,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:36:15,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:36:15,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:36:15,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:36:15,581 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:36:15,599 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:36:15,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:36:15,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:36:15,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:36:15,601 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:36:15,601 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:36:15,602 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:36:15,602 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:36:15,602 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:36:15,603 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:36:15,603 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:36:15,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:36:15,603 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:36:15,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:36:15,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:36:15,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:36:15,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:36:15,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:36:15,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:36:15,605 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:36:15,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:36:15,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:36:15,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:36:15,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:36:15,607 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:36:15,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:36:15,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:36:15,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:36:15,608 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:36:15,609 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:36:15,609 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9159a955cf189961722bfb66b0369c050bac9ac [2020-07-29 01:36:15,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:36:15,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:36:15,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:36:15,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:36:15,954 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:36:15,956 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i [2020-07-29 01:36:16,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f80b58fe/b60c3c39cc7242b6b74c9ba573f91389/FLAG17df3c3fa [2020-07-29 01:36:16,508 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:36:16,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i [2020-07-29 01:36:16,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f80b58fe/b60c3c39cc7242b6b74c9ba573f91389/FLAG17df3c3fa [2020-07-29 01:36:16,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f80b58fe/b60c3c39cc7242b6b74c9ba573f91389 [2020-07-29 01:36:16,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:36:16,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:36:16,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:36:16,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:36:16,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:36:16,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:36:16" (1/1) ... [2020-07-29 01:36:16,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38320bea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:16, skipping insertion in model container [2020-07-29 01:36:16,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:36:16" (1/1) ... [2020-07-29 01:36:16,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:36:16,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:36:17,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:36:17,248 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:36:17,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:36:17,412 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:36:17,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:17 WrapperNode [2020-07-29 01:36:17,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:36:17,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:36:17,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:36:17,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:36:17,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:17" (1/1) ... [2020-07-29 01:36:17,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:17" (1/1) ... [2020-07-29 01:36:17,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:36:17,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:36:17,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:36:17,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:36:17,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:17" (1/1) ... [2020-07-29 01:36:17,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:17" (1/1) ... [2020-07-29 01:36:17,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:17" (1/1) ... [2020-07-29 01:36:17,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:17" (1/1) ... [2020-07-29 01:36:17,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:17" (1/1) ... [2020-07-29 01:36:17,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:17" (1/1) ... [2020-07-29 01:36:17,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:17" (1/1) ... [2020-07-29 01:36:17,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:36:17,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:36:17,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:36:17,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:36:17,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:17" (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 [2020-07-29 01:36:17,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-29 01:36:17,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 01:36:17,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-29 01:36:17,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:36:17,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:36:17,961 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:36:17,961 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-29 01:36:17,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:36:17 BoogieIcfgContainer [2020-07-29 01:36:17,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:36:17,964 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:36:17,965 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:36:17,968 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:36:17,969 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:36:17,969 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:36:16" (1/3) ... [2020-07-29 01:36:17,971 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@621e75ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:36:17, skipping insertion in model container [2020-07-29 01:36:17,971 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:36:17,971 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:36:17" (2/3) ... [2020-07-29 01:36:17,971 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@621e75ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:36:17, skipping insertion in model container [2020-07-29 01:36:17,972 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:36:17,972 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:36:17" (3/3) ... [2020-07-29 01:36:17,979 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cbzero-alloca-1.i [2020-07-29 01:36:18,045 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:36:18,045 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:36:18,045 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:36:18,045 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:36:18,046 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:36:18,047 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:36:18,047 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:36:18,047 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:36:18,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-29 01:36:18,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:36:18,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:36:18,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:36:18,097 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-29 01:36:18,098 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:36:18,098 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:36:18,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-29 01:36:18,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:36:18,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:36:18,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:36:18,102 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-29 01:36:18,103 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:36:18,112 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~n~0 := main_#t~nondet5;havoc main_#t~nondet5; 7#L557true assume !(main_~length~0 < 1); 11#L557-2true assume !(main_~n~0 < 1); 13#L560-1true assume !(main_~n~0 > main_~length~0);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;cbzero_#in~b.base, cbzero_#in~b.offset, cbzero_#in~length := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~n~0;havoc cbzero_#t~post3.base, cbzero_#t~post3.offset, cbzero_#t~post2, cbzero_~b.base, cbzero_~b.offset, cbzero_~length, cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~b.base, cbzero_~b.offset := cbzero_#in~b.base, cbzero_#in~b.offset;cbzero_~length := cbzero_#in~length;havoc cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~p~0.base, cbzero_~p~0.offset := cbzero_~b.base, cbzero_~b.offset; 4#L551-3true [2020-07-29 01:36:18,112 INFO L796 eck$LassoCheckResult]: Loop: 4#L551-3true cbzero_#t~post2 := cbzero_~length;cbzero_~length := cbzero_#t~post2 - 1; 10#L551-1true assume !!(0 != cbzero_#t~post2 % 4294967296);havoc cbzero_#t~post2;cbzero_#t~post3.base, cbzero_#t~post3.offset := cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~p~0.base, cbzero_~p~0.offset := cbzero_#t~post3.base, 1 + cbzero_#t~post3.offset;call write~int(0, cbzero_#t~post3.base, cbzero_#t~post3.offset, 1);havoc cbzero_#t~post3.base, cbzero_#t~post3.offset; 4#L551-3true [2020-07-29 01:36:18,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:36:18,119 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2020-07-29 01:36:18,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:36:18,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199927338] [2020-07-29 01:36:18,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:36:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:18,245 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:18,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:18,288 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:36:18,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:36:18,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1702, now seen corresponding path program 1 times [2020-07-29 01:36:18,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:36:18,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476174021] [2020-07-29 01:36:18,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:36:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:18,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:18,332 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:18,340 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:36:18,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:36:18,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1806939567, now seen corresponding path program 1 times [2020-07-29 01:36:18,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:36:18,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387881731] [2020-07-29 01:36:18,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:36:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:18,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:36:18,408 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:36:18,415 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:36:18,902 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-07-29 01:36:19,020 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:36:19,022 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:36:19,022 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:36:19,022 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:36:19,022 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:36:19,023 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:19,023 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:36:19,023 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:36:19,024 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cbzero-alloca-1.i_Iteration1_Lasso [2020-07-29 01:36:19,024 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:36:19,024 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:36:19,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:19,267 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-07-29 01:36:19,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:19,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:19,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:19,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:19,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:19,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:19,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:19,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:19,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:19,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:19,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:36:19,846 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-29 01:36:20,210 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:36:20,219 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:20,229 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 [2020-07-29 01:36:20,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:20,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:36:20,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:20,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:20,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:20,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:36:20,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:36:20,242 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:20,306 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 [2020-07-29 01:36:20,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:20,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:20,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:20,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:20,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:36:20,319 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:36:20,326 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) [2020-07-29 01:36:20,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:36:20,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:20,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:20,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:20,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:20,398 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:36:20,398 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:20,437 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) [2020-07-29 01:36:20,476 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:20,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:20,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:20,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:20,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:36:20,483 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:36:20,484 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:36:20,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:36:20,530 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 [2020-07-29 01:36:20,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:36:20,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:36:20,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:36:20,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:36:20,547 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:36:20,548 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:36:20,572 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:36:20,760 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-07-29 01:36:20,761 INFO L444 ModelExtractionUtils]: 27 out of 37 variables were initially zero. Simplification set additionally 7 variables to zero. 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 [2020-07-29 01:36:20,779 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:36:20,784 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-07-29 01:36:20,785 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:36:20,786 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cbzero_~p~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1) = -1*ULTIMATE.start_cbzero_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1 Supporting invariants [] [2020-07-29 01:36:20,839 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2020-07-29 01:36:20,848 INFO L393 LassoCheck]: Loop: "cbzero_#t~post2 := cbzero_~length;cbzero_~length := cbzero_#t~post2 - 1;" "assume !!(0 != cbzero_#t~post2 % 4294967296);havoc cbzero_#t~post2;cbzero_#t~post3.base, cbzero_#t~post3.offset := cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~p~0.base, cbzero_~p~0.offset := cbzero_#t~post3.base, 1 + cbzero_#t~post3.offset;call write~int(0, cbzero_#t~post3.base, cbzero_#t~post3.offset, 1);havoc cbzero_#t~post3.base, cbzero_#t~post3.offset;" [2020-07-29 01:36:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:20,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-29 01:36:20,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:36:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:20,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-29 01:36:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:20,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:36:20,949 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#unseeded} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {21#unseeded} is VALID [2020-07-29 01:36:20,950 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#unseeded} havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~n~0 := main_#t~nondet5;havoc main_#t~nondet5; {21#unseeded} is VALID [2020-07-29 01:36:20,951 INFO L280 TraceCheckUtils]: 2: Hoare triple {21#unseeded} assume !(main_~length~0 < 1); {21#unseeded} is VALID [2020-07-29 01:36:20,952 INFO L280 TraceCheckUtils]: 3: Hoare triple {21#unseeded} assume !(main_~n~0 < 1); {21#unseeded} is VALID [2020-07-29 01:36:20,953 INFO L280 TraceCheckUtils]: 4: Hoare triple {21#unseeded} assume !(main_~n~0 > main_~length~0);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;cbzero_#in~b.base, cbzero_#in~b.offset, cbzero_#in~length := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~n~0;havoc cbzero_#t~post3.base, cbzero_#t~post3.offset, cbzero_#t~post2, cbzero_~b.base, cbzero_~b.offset, cbzero_~length, cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~b.base, cbzero_~b.offset := cbzero_#in~b.base, cbzero_#in~b.offset;cbzero_~length := cbzero_#in~length;havoc cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~p~0.base, cbzero_~p~0.offset := cbzero_~b.base, cbzero_~b.offset; {50#(and (= ULTIMATE.start_cbzero_~p~0.base |ULTIMATE.start_main_#t~malloc6.base|) unseeded)} is VALID [2020-07-29 01:36:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:20,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-29 01:36:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:36:20,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:36:20,973 INFO L280 TraceCheckUtils]: 0: Hoare triple {51#(and (>= oldRank0 (+ (* (- 1) ULTIMATE.start_cbzero_~p~0.offset) (select |#length| |ULTIMATE.start_main_#t~malloc6.base|))) (= ULTIMATE.start_cbzero_~p~0.base |ULTIMATE.start_main_#t~malloc6.base|))} cbzero_#t~post2 := cbzero_~length;cbzero_~length := cbzero_#t~post2 - 1; {51#(and (>= oldRank0 (+ (* (- 1) ULTIMATE.start_cbzero_~p~0.offset) (select |#length| |ULTIMATE.start_main_#t~malloc6.base|))) (= ULTIMATE.start_cbzero_~p~0.base |ULTIMATE.start_main_#t~malloc6.base|))} is VALID [2020-07-29 01:36:20,975 INFO L280 TraceCheckUtils]: 1: Hoare triple {51#(and (>= oldRank0 (+ (* (- 1) ULTIMATE.start_cbzero_~p~0.offset) (select |#length| |ULTIMATE.start_main_#t~malloc6.base|))) (= ULTIMATE.start_cbzero_~p~0.base |ULTIMATE.start_main_#t~malloc6.base|))} assume !!(0 != cbzero_#t~post2 % 4294967296);havoc cbzero_#t~post2;cbzero_#t~post3.base, cbzero_#t~post3.offset := cbzero_~p~0.base, cbzero_~p~0.offset;cbzero_~p~0.base, cbzero_~p~0.offset := cbzero_#t~post3.base, 1 + cbzero_#t~post3.offset;call write~int(0, cbzero_#t~post3.base, cbzero_#t~post3.offset, 1);havoc cbzero_#t~post3.base, cbzero_#t~post3.offset; {53#(and (= ULTIMATE.start_cbzero_~p~0.base |ULTIMATE.start_main_#t~malloc6.base|) (or unseeded (and (>= oldRank0 0) (> oldRank0 (+ (* (- 1) ULTIMATE.start_cbzero_~p~0.offset) (select |#length| |ULTIMATE.start_main_#t~malloc6.base|))))))} is VALID [2020-07-29 01:36:20,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:36:20,989 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:36:21,004 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:36:21,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:36:21,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,018 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-29 01:36:21,020 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2020-07-29 01:36:21,116 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 21 states and 25 transitions. Complement of second has 6 states. [2020-07-29 01:36:21,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-29 01:36:21,116 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:36:21,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-29 01:36:21,119 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:36:21,119 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:36:21,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:36:21,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 01:36:21,125 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:36:21,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:36:21,126 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:36:21,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 25 transitions. [2020-07-29 01:36:21,127 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:36:21,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:36:21,130 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 11 states. [2020-07-29 01:36:21,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:36:21,133 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:36:21,133 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 01:36:21,136 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:36:21,137 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:36:21,137 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 21 states and 25 transitions. cyclomatic complexity: 5 [2020-07-29 01:36:21,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 25 transitions. cyclomatic complexity: 5 [2020-07-29 01:36:21,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:36:21,138 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:36:21,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:36:21,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:36:21,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 25 transitions. cyclomatic complexity: 5 Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:36:21,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:36:21,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:36:21,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 25 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:36:21,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 21 letters. Loop has 21 letters. [2020-07-29 01:36:21,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 21 letters. Loop has 21 letters. [2020-07-29 01:36:21,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 25 transitions. cyclomatic complexity: 5 Stem has 21 letters. Loop has 21 letters. [2020-07-29 01:36:21,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:36:21,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:36:21,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 25 transitions. cyclomatic complexity: 5 Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:36:21,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:36:21,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:36:21,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 25 transitions. cyclomatic complexity: 5 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:36:21,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:36:21,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:36:21,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 25 transitions. cyclomatic complexity: 5 Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:36:21,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:36:21,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:36:21,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 25 transitions. cyclomatic complexity: 5 Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:36:21,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:36:21,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:36:21,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 25 transitions. cyclomatic complexity: 5 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:36:21,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:36:21,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:36:21,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 25 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:36:21,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,151 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:36:21,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:36:21,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2020-07-29 01:36:21,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:36:21,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 7 letters. Loop has 2 letters. [2020-07-29 01:36:21,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 5 letters. Loop has 4 letters. [2020-07-29 01:36:21,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:36:21,158 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. cyclomatic complexity: 5 [2020-07-29 01:36:21,161 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:36:21,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-07-29 01:36:21,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:36:21,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:36:21,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:36:21,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:36:21,168 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:36:21,169 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:36:21,169 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:36:21,169 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:36:21,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:36:21,170 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:36:21,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:36:21,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:36:21 BoogieIcfgContainer [2020-07-29 01:36:21,177 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:36:21,178 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:36:21,178 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:36:21,179 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:36:21,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:36:17" (3/4) ... [2020-07-29 01:36:21,183 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:36:21,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:36:21,186 INFO L168 Benchmark]: Toolchain (without parser) took 4367.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 220.2 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:21,187 INFO L168 Benchmark]: CDTParser took 1.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:36:21,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 592.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:21,189 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:36:21,190 INFO L168 Benchmark]: Boogie Preprocessor took 25.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:21,191 INFO L168 Benchmark]: RCFGBuilder took 477.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:21,192 INFO L168 Benchmark]: BuchiAutomizer took 3213.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -35.9 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:36:21,192 INFO L168 Benchmark]: Witness Printer took 5.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:36:21,197 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 592.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 477.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3213.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -35.9 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * p + unknown-#length-unknown[__builtin_alloca (length * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 11 SDslu, 2 SDs, 0 SdLazy, 4 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital125 mio100 ax114 hnf98 lsp82 ukn93 mio100 lsp61 div158 bol100 ite100 ukn100 eq175 hnf72 smp94 dnf100 smp100 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...