./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-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_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 0.2.0-5485861 [2020-10-26 04:22:00,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:22:00,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:22:00,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:22:00,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:22:00,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:22:00,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:22:00,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:22:00,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:22:00,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:22:00,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:22:00,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:22:00,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:22:00,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:22:00,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:22:00,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:22:00,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:22:00,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:22:00,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:22:00,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:22:00,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:22:00,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:22:00,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:22:00,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:22:00,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:22:00,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:22:00,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:22:00,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:22:00,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:22:00,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:22:00,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:22:00,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:22:00,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:22:00,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:22:00,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:22:00,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:22:00,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:22:00,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:22:00,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:22:00,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:22:00,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:22:00,172 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:22:00,227 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:22:00,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:22:00,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:22:00,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:22:00,231 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:22:00,232 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:22:00,232 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:22:00,232 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:22:00,232 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:22:00,233 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:22:00,234 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:22:00,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:22:00,235 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:22:00,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:22:00,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:22:00,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:22:00,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:22:00,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:22:00,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:22:00,237 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:22:00,237 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:22:00,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:22:00,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:22:00,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:22:00,238 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:22:00,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:22:00,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:22:00,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:22:00,239 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:22:00,241 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:22:00,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9159a955cf189961722bfb66b0369c050bac9ac [2020-10-26 04:22:00,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:22:00,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:22:00,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:22:00,774 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:22:00,775 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:22:00,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i [2020-10-26 04:22:00,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29b96e95/3766288719414c0b8d65cdd474908140/FLAGf426b328b [2020-10-26 04:22:01,671 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:22:01,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/openbsd_cbzero-alloca-1.i [2020-10-26 04:22:01,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29b96e95/3766288719414c0b8d65cdd474908140/FLAGf426b328b [2020-10-26 04:22:01,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29b96e95/3766288719414c0b8d65cdd474908140 [2020-10-26 04:22:01,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:22:01,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:22:01,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:22:01,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:22:01,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:22:01,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:22:01" (1/1) ... [2020-10-26 04:22:01,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@219f329d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:01, skipping insertion in model container [2020-10-26 04:22:01,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:22:01" (1/1) ... [2020-10-26 04:22:01,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:22:02,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:22:02,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:22:02,373 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:22:02,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:22:02,499 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:22:02,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:02 WrapperNode [2020-10-26 04:22:02,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:22:02,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:22:02,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:22:02,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:22:02,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:02" (1/1) ... [2020-10-26 04:22:02,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:02" (1/1) ... [2020-10-26 04:22:02,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:22:02,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:22:02,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:22:02,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:22:02,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:02" (1/1) ... [2020-10-26 04:22:02,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:02" (1/1) ... [2020-10-26 04:22:02,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:02" (1/1) ... [2020-10-26 04:22:02,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:02" (1/1) ... [2020-10-26 04:22:02,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:02" (1/1) ... [2020-10-26 04:22:02,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:02" (1/1) ... [2020-10-26 04:22:02,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:02" (1/1) ... [2020-10-26 04:22:02,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:22:02,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:22:02,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:22:02,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:22:02,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:02" (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 04:22:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 04:22:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:22:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 04:22:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:22:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:22:03,032 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:22:03,032 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-26 04:22:03,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:22:03 BoogieIcfgContainer [2020-10-26 04:22:03,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:22:03,036 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:22:03,036 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:22:03,040 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:22:03,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:22:03,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:22:01" (1/3) ... [2020-10-26 04:22:03,042 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e388260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:22:03, skipping insertion in model container [2020-10-26 04:22:03,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:22:03,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:22:02" (2/3) ... [2020-10-26 04:22:03,043 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e388260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:22:03, skipping insertion in model container [2020-10-26 04:22:03,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:22:03,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:22:03" (3/3) ... [2020-10-26 04:22:03,045 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cbzero-alloca-1.i [2020-10-26 04:22:03,109 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:22:03,109 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:22:03,110 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:22:03,110 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:22:03,110 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:22:03,110 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:22:03,110 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:22:03,110 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:22:03,131 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-26 04:22:03,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 04:22:03,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:22:03,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:22:03,166 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:22:03,167 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 04:22:03,167 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:22:03,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-26 04:22:03,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 04:22:03,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:22:03,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:22:03,170 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:22:03,170 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 04:22:03,179 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 [2020-10-26 04:22:03,180 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 [2020-10-26 04:22:03,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:22:03,187 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2020-10-26 04:22:03,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:22:03,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719205168] [2020-10-26 04:22:03,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:22:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:22:03,335 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:22:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:22:03,378 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:22:03,414 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:22:03,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:22:03,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1702, now seen corresponding path program 1 times [2020-10-26 04:22:03,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:22:03,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238031909] [2020-10-26 04:22:03,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:22:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:22:03,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:22:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:22:03,498 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:22:03,504 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:22:03,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:22:03,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1806939567, now seen corresponding path program 1 times [2020-10-26 04:22:03,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:22:03,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893345618] [2020-10-26 04:22:03,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:22:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:22:03,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:22:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:22:03,607 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:22:03,620 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:22:03,729 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-10-26 04:22:03,984 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-26 04:22:04,088 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:22:04,089 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:22:04,089 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:22:04,089 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:22:04,089 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:22:04,090 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:04,090 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:22:04,090 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:22:04,090 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cbzero-alloca-1.i_Iteration1_Lasso [2020-10-26 04:22:04,090 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:22:04,091 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:22:04,125 INFO 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 04:22:04,135 INFO 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 04:22:04,139 INFO 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 04:22:04,143 INFO 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 04:22:04,147 INFO 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 04:22:04,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:04,417 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-26 04:22:04,501 INFO 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 04:22:04,505 INFO 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 04:22:04,509 INFO 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 04:22:04,513 INFO 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 04:22:04,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:22:04,520 INFO 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 04:22:04,794 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-10-26 04:22:05,017 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:22:05,023 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:22:05,037 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 04:22:05,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:05,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:22:05,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:05,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:05,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:05,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:22:05,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:05,047 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 04:22:05,090 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 04:22:05,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:05,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:22:05,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:05,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:05,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:05,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:22:05,093 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 04:22:05,095 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 04:22:05,134 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 04:22:05,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:05,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:22:05,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:05,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:05,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:05,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:22:05,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:05,142 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:05,178 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 04:22:05,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:05,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:22:05,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:05,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:05,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:05,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:22:05,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:22:05,185 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 04:22:05,221 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 04:22:05,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:05,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:22:05,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:05,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:05,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:05,226 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:22:05,226 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:05,232 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:05,268 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 04:22:05,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:05,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:05,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:05,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:05,278 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:22:05,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:22:05,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:05,318 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 04:22:05,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:05,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:05,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:05,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:05,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:22:05,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:22:05,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:05,395 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 04:22:05,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:05,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:05,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:05,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:05,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:22:05,417 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:22:05,428 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:05,457 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 04:22:05,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:05,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:22:05,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:05,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:05,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:05,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:22:05,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:22:05,467 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:05,493 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 04:22:05,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:22:05,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:22:05,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:22:05,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:22:05,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:22:05,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:22:05,544 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:22:05,686 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2020-10-26 04:22:05,687 INFO L444 ModelExtractionUtils]: 10 out of 37 variables were initially zero. Simplification set additionally 22 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:22:05,695 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:22:05,699 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-26 04:22:05,699 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:22:05,700 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cbzero_~length, v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1) = 2*ULTIMATE.start_cbzero_~length + 3*v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1 Supporting invariants [2*ULTIMATE.start_cbzero_~length + 3*ULTIMATE.start_cbzero_~p~0.offset >= 0] [2020-10-26 04:22:05,758 INFO L297 tatePredicateManager]: 2 out of 4 supporting invariants were superfluous and have been removed [2020-10-26 04:22:05,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 04:22:05,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:22:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:22:05,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-26 04:22:05,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:22:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:22:05,901 WARN L261 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-26 04:22:05,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:22:05,959 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 04:22:05,980 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-26 04:22:05,981 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 4 states. [2020-10-26 04:22:06,130 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 4 states. Result 21 states and 25 transitions. Complement of second has 7 states. [2020-10-26 04:22:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:22:06,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:22:06,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-10-26 04:22:06,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-26 04:22:06,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:22:06,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-26 04:22:06,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:22:06,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-26 04:22:06,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:22:06,138 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2020-10-26 04:22:06,141 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:22:06,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-10-26 04:22:06,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:22:06,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:22:06,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:22:06,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:22:06,146 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:22:06,146 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:22:06,146 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:22:06,146 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:22:06,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:22:06,147 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:22:06,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:22:06,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:22:06 BoogieIcfgContainer [2020-10-26 04:22:06,153 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:22:06,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:22:06,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:22:06,154 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:22:06,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:22:03" (3/4) ... [2020-10-26 04:22:06,158 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:22:06,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:22:06,160 INFO L168 Benchmark]: Toolchain (without parser) took 4244.81 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 24.6 MB in the beginning and 38.5 MB in the end (delta: -13.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:22:06,161 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 39.8 MB. Free memory was 26.3 MB in the beginning and 26.3 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:22:06,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.96 ms. Allocated memory is still 48.2 MB. Free memory was 23.9 MB in the beginning and 26.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:22:06,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.46 ms. Allocated memory is still 48.2 MB. Free memory was 26.1 MB in the beginning and 24.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:22:06,164 INFO L168 Benchmark]: Boogie Preprocessor took 29.64 ms. Allocated memory is still 48.2 MB. Free memory was 24.4 MB in the beginning and 23.5 MB in the end (delta: 960.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:22:06,164 INFO L168 Benchmark]: RCFGBuilder took 451.87 ms. Allocated memory is still 48.2 MB. Free memory was 23.3 MB in the beginning and 23.5 MB in the end (delta: -207.3 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:22:06,165 INFO L168 Benchmark]: BuchiAutomizer took 3117.76 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 23.3 MB in the beginning and 38.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:22:06,166 INFO L168 Benchmark]: Witness Printer took 4.58 ms. Allocated memory is still 71.3 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:22:06,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 39.8 MB. Free memory was 26.3 MB in the beginning and 26.3 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 578.96 ms. Allocated memory is still 48.2 MB. Free memory was 23.9 MB in the beginning and 26.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.46 ms. Allocated memory is still 48.2 MB. Free memory was 26.1 MB in the beginning and 24.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.64 ms. Allocated memory is still 48.2 MB. Free memory was 24.4 MB in the beginning and 23.5 MB in the end (delta: 960.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 451.87 ms. Allocated memory is still 48.2 MB. Free memory was 23.3 MB in the beginning and 23.5 MB in the end (delta: -207.3 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3117.76 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 23.3 MB in the beginning and 38.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.58 ms. Allocated memory is still 71.3 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 2 * length + 3 * unknown-#length-unknown[__builtin_alloca (length * sizeof(char))] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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: 9 SDtfs, 13 SDslu, 5 SDs, 0 SdLazy, 11 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital123 mio100 ax114 hnf98 lsp82 ukn93 mio100 lsp58 div158 bol100 ite100 ukn100 eq175 hnf72 smp94 dnf100 smp100 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms 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...