./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-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 73af3db471e3034ab4850ccc68dc5792ec5eb945 ................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:22:08,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:22:08,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:22:09,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:22:09,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:22:09,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:22:09,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:22:09,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:22:09,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:22:09,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:22:09,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:22:09,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:22:09,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:22:09,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:22:09,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:22:09,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:22:09,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:22:09,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:22:09,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:22:09,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:22:09,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:22:09,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:22:09,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:22:09,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:22:09,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:22:09,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:22:09,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:22:09,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:22:09,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:22:09,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:22:09,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:22:09,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:22:09,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:22:09,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:22:09,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:22:09,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:22:09,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:22:09,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:22:09,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:22:09,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:22:09,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:22:09,141 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:22:09,194 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:22:09,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:22:09,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:22:09,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:22:09,198 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:22:09,199 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:22:09,199 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:22:09,199 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:22:09,199 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:22:09,199 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:22:09,201 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:22:09,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:22:09,201 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:22:09,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:22:09,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:22:09,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:22:09,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:22:09,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:22:09,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:22:09,202 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:22:09,203 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:22:09,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:22:09,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:22:09,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:22:09,203 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:22:09,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:22:09,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:22:09,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:22:09,204 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:22:09,206 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:22:09,206 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73af3db471e3034ab4850ccc68dc5792ec5eb945 [2020-10-26 04:22:09,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:22:09,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:22:09,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:22:09,660 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:22:09,661 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:22:09,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca-1.i [2020-10-26 04:22:09,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d0594792/cfa706c41cbe400f87fc3ec714f6dbca/FLAG48e84e84b [2020-10-26 04:22:10,512 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:22:10,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca-1.i [2020-10-26 04:22:10,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d0594792/cfa706c41cbe400f87fc3ec714f6dbca/FLAG48e84e84b [2020-10-26 04:22:10,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d0594792/cfa706c41cbe400f87fc3ec714f6dbca [2020-10-26 04:22:10,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:22:10,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:22:10,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:22:10,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:22:10,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:22:10,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:22:10" (1/1) ... [2020-10-26 04:22:10,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5822a981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:10, skipping insertion in model container [2020-10-26 04:22:10,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:22:10" (1/1) ... [2020-10-26 04:22:10,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:22:10,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:22:11,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:22:11,147 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:22:11,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:22:11,266 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:22:11,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:11 WrapperNode [2020-10-26 04:22:11,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:22:11,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:22:11,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:22:11,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:22:11,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:11" (1/1) ... [2020-10-26 04:22:11,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:11" (1/1) ... [2020-10-26 04:22:11,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:22:11,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:22:11,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:22:11,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:22:11,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:11" (1/1) ... [2020-10-26 04:22:11,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:11" (1/1) ... [2020-10-26 04:22:11,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:11" (1/1) ... [2020-10-26 04:22:11,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:11" (1/1) ... [2020-10-26 04:22:11,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:11" (1/1) ... [2020-10-26 04:22:11,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:11" (1/1) ... [2020-10-26 04:22:11,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:11" (1/1) ... [2020-10-26 04:22:11,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:22:11,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:22:11,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:22:11,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:22:11,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 04:22:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:22:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 04:22:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:22:11,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:22:11,754 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:22:11,754 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-26 04:22:11,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:22:11 BoogieIcfgContainer [2020-10-26 04:22:11,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:22:11,758 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:22:11,758 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:22:11,763 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:22:11,764 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:22:11,764 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:22:10" (1/3) ... [2020-10-26 04:22:11,766 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@331c31ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:22:11, skipping insertion in model container [2020-10-26 04:22:11,766 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:22:11,766 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:11" (2/3) ... [2020-10-26 04:22:11,767 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@331c31ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:22:11, skipping insertion in model container [2020-10-26 04:22:11,767 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:22:11,767 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:22:11" (3/3) ... [2020-10-26 04:22:11,769 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemrchr-alloca-1.i [2020-10-26 04:22:11,838 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:22:11,838 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:22:11,839 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:22:11,839 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:22:11,839 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:22:11,839 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:22:11,839 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:22:11,839 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:22:11,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-26 04:22:11,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-26 04:22:11,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:22:11,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:22:11,909 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:22:11,909 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-26 04:22:11,909 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:22:11,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-26 04:22:11,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-26 04:22:11,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:22:11,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:22:11,915 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:22:11,916 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-26 04:22:11,926 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~MAX~0 := 100000; 7#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 5#L565true assume !(main_~length~0 < 1); 9#L565-2true assume !(main_~n~0 < 1 || main_~n~0 > ~MAX~0); 4#L568-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;cmemrchr_#in~s.base, cmemrchr_#in~s.offset, cmemrchr_#in~c, cmemrchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemrchr_#res.base, cmemrchr_#res.offset;havoc cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset, cmemrchr_#t~mem4, cmemrchr_#t~pre2, cmemrchr_~s.base, cmemrchr_~s.offset, cmemrchr_~c, cmemrchr_~n, cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset;cmemrchr_~s.base, cmemrchr_~s.offset := cmemrchr_#in~s.base, cmemrchr_#in~s.offset;cmemrchr_~c := cmemrchr_#in~c;cmemrchr_~n := cmemrchr_#in~n;havoc cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset; 12#L551true assume 0 != cmemrchr_~n % 4294967296;cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset := cmemrchr_~s.base, cmemrchr_~s.offset + cmemrchr_~n % 4294967296; 17#L553-4true [2020-10-26 04:22:11,926 INFO L796 eck$LassoCheckResult]: Loop: 17#L553-4true cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset := cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset - 1;cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset := cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset - 1;call cmemrchr_#t~mem4 := read~int(cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset, 1); 6#L554true assume !(cmemrchr_#t~mem4 % 256 == cmemrchr_~c % 256);havoc cmemrchr_#t~mem4;havoc cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset; 10#L553-1true cmemrchr_#t~pre2 := cmemrchr_~n - 1;cmemrchr_~n := cmemrchr_~n - 1; 13#L553-2true assume !!(0 != cmemrchr_#t~pre2 % 4294967296);havoc cmemrchr_#t~pre2; 17#L553-4true [2020-10-26 04:22:11,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:22:11,942 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2020-10-26 04:22:11,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:22:11,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062600252] [2020-10-26 04:22:11,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:22:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:22:12,137 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:22:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:22:12,182 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:22:12,207 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:22:12,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:22:12,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1605803, now seen corresponding path program 1 times [2020-10-26 04:22:12,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:22:12,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852774614] [2020-10-26 04:22:12,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:22:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:22:12,230 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:22:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:22:12,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:22:12,247 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:22:12,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:22:12,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1592233654, now seen corresponding path program 1 times [2020-10-26 04:22:12,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:22:12,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19248179] [2020-10-26 04:22:12,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:22:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:22:12,290 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:22:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:22:12,346 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:22:12,361 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:22:12,852 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2020-10-26 04:22:12,966 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:22:12,966 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:22:12,967 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:22:12,967 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:22:12,967 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:22:12,967 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:12,967 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:22:12,968 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:22:12,968 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemrchr-alloca-1.i_Iteration1_Lasso [2020-10-26 04:22:12,968 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:22:12,968 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:22:12,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,199 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2020-10-26 04:22:13,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:13,689 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-10-26 04:22:14,139 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:22:14,145 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:14,160 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 [2020-10-26 04:22:14,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:14,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:22:14,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:14,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:14,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:14,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:22:14,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:22:14,171 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:22:14,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:22:14,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:14,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:22:14,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:14,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:14,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:14,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:22:14,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:14,220 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:22:14,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:22:14,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:14,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:14,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:14,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:14,269 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:22:14,270 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:22:14,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:22:14,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:22:14,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:14,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:14,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:14,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:14,330 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:22:14,330 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:14,342 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:22:14,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:22:14,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:14,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:14,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:14,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:14,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:22:14,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:22:14,433 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:22:14,465 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-26 04:22:14,465 INFO L444 ModelExtractionUtils]: 32 out of 37 variables were initially zero. Simplification set additionally 3 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) [2020-10-26 04:22:14,472 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:14,478 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:22:14,478 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:22:14,479 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cmemrchr_~cp~0.offset) = 1*ULTIMATE.start_cmemrchr_~cp~0.offset Supporting invariants [] [2020-10-26 04:22:14,604 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-10-26 04:22:14,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:22:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:22:14,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:22:14,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:22:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:22:14,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-26 04:22:14,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:22:14,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:22:14,740 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-26 04:22:14,742 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2020-10-26 04:22:14,789 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 35 states and 40 transitions. Complement of second has 5 states. [2020-10-26 04:22:14,790 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 [2020-10-26 04:22:14,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 04:22:14,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-10-26 04:22:14,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 6 letters. Loop has 4 letters. [2020-10-26 04:22:14,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:22:14,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 10 letters. Loop has 4 letters. [2020-10-26 04:22:14,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:22:14,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 6 letters. Loop has 8 letters. [2020-10-26 04:22:14,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:22:14,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2020-10-26 04:22:14,802 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:22:14,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2020-10-26 04:22:14,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:22:14,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:22:14,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:22:14,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:22:14,807 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:22:14,807 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:22:14,807 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:22:14,808 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:22:14,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:22:14,808 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:22:14,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:22:14,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:22:14 BoogieIcfgContainer [2020-10-26 04:22:14,815 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:22:14,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:22:14,816 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:22:14,816 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:22:14,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:22:11" (3/4) ... [2020-10-26 04:22:14,820 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:22:14,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:22:14,822 INFO L168 Benchmark]: Toolchain (without parser) took 4074.21 ms. Allocated memory was 50.3 MB in the beginning and 88.1 MB in the end (delta: 37.7 MB). Free memory was 26.4 MB in the beginning and 55.1 MB in the end (delta: -28.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:22:14,823 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 39.8 MB. Free memory was 17.6 MB in the beginning and 17.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:22:14,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 513.18 ms. Allocated memory is still 50.3 MB. Free memory was 25.7 MB in the beginning and 27.9 MB in the end (delta: -2.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:22:14,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.52 ms. Allocated memory is still 50.3 MB. Free memory was 27.9 MB in the beginning and 26.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:22:14,826 INFO L168 Benchmark]: Boogie Preprocessor took 48.74 ms. Allocated memory is still 50.3 MB. Free memory was 26.1 MB in the beginning and 24.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:22:14,827 INFO L168 Benchmark]: RCFGBuilder took 356.65 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 23.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:22:14,828 INFO L168 Benchmark]: BuchiAutomizer took 3057.06 ms. Allocated memory was 50.3 MB in the beginning and 88.1 MB in the end (delta: 37.7 MB). Free memory was 23.7 MB in the beginning and 55.1 MB in the end (delta: -31.5 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:22:14,828 INFO L168 Benchmark]: Witness Printer took 4.95 ms. Allocated memory is still 88.1 MB. Free memory is still 55.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:22:14,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 39.8 MB. Free memory was 17.6 MB in the beginning and 17.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 513.18 ms. Allocated memory is still 50.3 MB. Free memory was 25.7 MB in the beginning and 27.9 MB in the end (delta: -2.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.52 ms. Allocated memory is still 50.3 MB. Free memory was 27.9 MB in the beginning and 26.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.74 ms. Allocated memory is still 50.3 MB. Free memory was 26.1 MB in the beginning and 24.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 356.65 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 23.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3057.06 ms. Allocated memory was 50.3 MB in the beginning and 88.1 MB in the end (delta: 37.7 MB). Free memory was 23.7 MB in the beginning and 55.1 MB in the end (delta: -31.5 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.95 ms. Allocated memory is still 88.1 MB. Free memory is still 55.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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 cp and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 21 SDtfs, 21 SDslu, 8 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital143 mio100 ax112 hnf98 lsp82 ukn97 mio100 lsp56 div205 bol100 ite100 ukn100 eq168 hnf64 smp95 dnf100 smp100 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 2 VariablesLoop: 3 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...