./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrlen_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-15/cstrlen_malloc.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 df00388ee02e9eb4eefa9325fb06df0e14414ced .................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:50:11,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:50:11,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:50:11,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:50:11,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:50:11,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:50:11,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:50:11,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:50:11,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:50:11,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:50:11,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:50:11,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:50:11,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:50:11,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:50:11,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:50:11,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:50:11,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:50:11,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:50:11,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:50:11,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:50:11,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:50:11,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:50:11,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:50:11,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:50:11,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:50:11,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:50:11,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:50:11,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:50:11,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:50:11,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:50:11,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:50:11,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:50:11,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:50:11,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:50:11,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:50:11,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:50:11,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:50:11,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:50:11,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:50:11,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:50:11,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:50:11,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:50:11,921 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:50:11,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:50:11,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:50:11,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:50:11,923 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:50:11,923 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:50:11,923 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:50:11,923 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:50:11,924 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:50:11,924 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:50:11,924 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:50:11,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:50:11,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:50:11,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:50:11,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:50:11,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:50:11,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:50:11,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:50:11,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:50:11,926 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:50:11,926 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:50:11,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:50:11,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:50:11,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:50:11,927 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:50:11,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:50:11,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:50:11,928 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:50:11,928 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:50:11,929 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:50:11,929 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df00388ee02e9eb4eefa9325fb06df0e14414ced [2020-10-19 18:50:12,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:50:12,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:50:12,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:50:12,283 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:50:12,284 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:50:12,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrlen_malloc.i [2020-10-19 18:50:12,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd176114b/858e616b02404aec9593cd5a1624a5a5/FLAGee7c48f97 [2020-10-19 18:50:12,906 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:50:12,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrlen_malloc.i [2020-10-19 18:50:12,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd176114b/858e616b02404aec9593cd5a1624a5a5/FLAGee7c48f97 [2020-10-19 18:50:13,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd176114b/858e616b02404aec9593cd5a1624a5a5 [2020-10-19 18:50:13,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:50:13,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:50:13,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:50:13,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:50:13,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:50:13,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:50:13" (1/1) ... [2020-10-19 18:50:13,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67bc36d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13, skipping insertion in model container [2020-10-19 18:50:13,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:50:13" (1/1) ... [2020-10-19 18:50:13,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:50:13,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:50:13,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:50:13,753 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:50:13,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:50:13,869 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:50:13,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13 WrapperNode [2020-10-19 18:50:13,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:50:13,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:50:13,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:50:13,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:50:13,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13" (1/1) ... [2020-10-19 18:50:13,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13" (1/1) ... [2020-10-19 18:50:13,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:50:13,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:50:13,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:50:13,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:50:13,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13" (1/1) ... [2020-10-19 18:50:13,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13" (1/1) ... [2020-10-19 18:50:13,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13" (1/1) ... [2020-10-19 18:50:13,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13" (1/1) ... [2020-10-19 18:50:13,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13" (1/1) ... [2020-10-19 18:50:13,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13" (1/1) ... [2020-10-19 18:50:13,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13" (1/1) ... [2020-10-19 18:50:13,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:50:13,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:50:13,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:50:13,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:50:13,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:50:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:50:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:50:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:50:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:50:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:50:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:50:14,228 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:50:14,228 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-19 18:50:14,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:50:14 BoogieIcfgContainer [2020-10-19 18:50:14,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:50:14,231 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:50:14,231 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:50:14,234 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:50:14,235 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:50:14,236 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:50:13" (1/3) ... [2020-10-19 18:50:14,237 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72874c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:50:14, skipping insertion in model container [2020-10-19 18:50:14,237 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:50:14,237 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:50:13" (2/3) ... [2020-10-19 18:50:14,238 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72874c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:50:14, skipping insertion in model container [2020-10-19 18:50:14,238 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:50:14,238 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:50:14" (3/3) ... [2020-10-19 18:50:14,240 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrlen_malloc.i [2020-10-19 18:50:14,312 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:50:14,313 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:50:14,313 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:50:14,313 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:50:14,313 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:50:14,314 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:50:14,314 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:50:14,314 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:50:14,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-19 18:50:14,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:50:14,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:50:14,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:50:14,368 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 18:50:14,368 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:50:14,368 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:50:14,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-19 18:50:14,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:50:14,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:50:14,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:50:14,371 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 18:50:14,371 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:50:14,381 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet207, main_#t~malloc208.base, main_#t~malloc208.offset, main_#t~ret209, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet207;havoc main_#t~nondet207; 13#L373true assume !(main_~length1~0 < 1); 6#L373-2true call main_#t~malloc208.base, main_#t~malloc208.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc208.base, main_#t~malloc208.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset, cstrlen_#t~mem205, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L367-3true [2020-10-19 18:50:14,382 INFO L796 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrlen_#t~mem205 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 4#L367-1true assume !!(0 != cstrlen_#t~mem205);havoc cstrlen_#t~mem205;cstrlen_#t~post206.base, cstrlen_#t~post206.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post206.base, 1 + cstrlen_#t~post206.offset;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset; 7#L367-3true [2020-10-19 18:50:14,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:50:14,395 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-10-19 18:50:14,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:50:14,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043450365] [2020-10-19 18:50:14,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:50:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:50:14,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:50:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:50:14,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:50:14,570 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:50:14,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:50:14,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2020-10-19 18:50:14,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:50:14,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988227795] [2020-10-19 18:50:14,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:50:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:50:14,599 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:50:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:50:14,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:50:14,617 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:50:14,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:50:14,621 INFO L82 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2020-10-19 18:50:14,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:50:14,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645796168] [2020-10-19 18:50:14,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:50:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:50:14,662 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:50:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:50:14,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:50:14,705 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:50:14,957 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-19 18:50:15,037 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:50:15,038 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:50:15,038 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:50:15,039 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:50:15,039 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:50:15,039 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:50:15,039 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:50:15,039 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:50:15,040 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen_malloc.i_Iteration1_Lasso [2020-10-19 18:50:15,040 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:50:15,040 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:50:15,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:50:15,227 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-19 18:50:15,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:50:15,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:50:15,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:50:15,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:50:15,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:50:15,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:50:15,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:50:15,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:50:15,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:50:15,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:50:15,655 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 24 [2020-10-19 18:50:15,729 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:50:15,735 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:50:15,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:50:15,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:50:15,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:50:15,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:50:15,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:50:15,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:50:15,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:50:15,762 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:50:15,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:50:15,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:50:15,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:50:15,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:50:15,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:50:15,860 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:50:15,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:50:15,882 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:50:16,074 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2020-10-19 18:50:16,074 INFO L444 ModelExtractionUtils]: 9 out of 28 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:50:16,084 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:50:16,090 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 18:50:16,090 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:50:16,091 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, ULTIMATE.start_main_~length1~0) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*ULTIMATE.start_main_~length1~0 Supporting invariants [1*ULTIMATE.start_main_~length1~0 - 1*v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1 >= 0] [2020-10-19 18:50:16,142 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-10-19 18:50:16,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:50:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:50:16,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:50:16,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:50:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:50:16,248 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:50:16,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:50:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:50:16,288 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 18:50:16,289 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2020-10-19 18:50:16,373 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 23 states and 26 transitions. Complement of second has 5 states. [2020-10-19 18:50:16,376 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 [2020-10-19 18:50:16,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:50:16,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2020-10-19 18:50:16,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-19 18:50:16,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:50:16,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-19 18:50:16,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:50:16,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 4 letters. [2020-10-19 18:50:16,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:50:16,387 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2020-10-19 18:50:16,393 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:50:16,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2020-10-19 18:50:16,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:50:16,398 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:50:16,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:50:16,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:50:16,399 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:50:16,399 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:50:16,399 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:50:16,399 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:50:16,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:50:16,400 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:50:16,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:50:16,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:50:16 BoogieIcfgContainer [2020-10-19 18:50:16,408 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:50:16,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:50:16,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:50:16,409 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:50:16,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:50:14" (3/4) ... [2020-10-19 18:50:16,414 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:50:16,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:50:16,418 INFO L168 Benchmark]: Toolchain (without parser) took 3207.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 960.0 MB in the beginning and 873.9 MB in the end (delta: 86.1 MB). Peak memory consumption was 218.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:50:16,420 INFO L168 Benchmark]: CDTParser took 1.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:50:16,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:50:16,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:50:16,423 INFO L168 Benchmark]: Boogie Preprocessor took 26.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:50:16,425 INFO L168 Benchmark]: RCFGBuilder took 286.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:50:16,426 INFO L168 Benchmark]: BuchiAutomizer took 2177.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.9 MB in the end (delta: 212.0 MB). Peak memory consumption was 212.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:50:16,428 INFO L168 Benchmark]: Witness Printer took 6.85 ms. Allocated memory is still 1.2 GB. Free memory is still 873.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:50:16,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 651.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 286.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2177.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.9 MB in the end (delta: 212.0 MB). Peak memory consumption was 212.0 MB. Max. memory is 11.5 GB. * Witness Printer took 6.85 ms. Allocated memory is still 1.2 GB. Free memory is still 873.9 MB. There was no memory consumed. Max. memory is 11.5 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 -1 * p + length1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 15 SDslu, 4 SDs, 0 SdLazy, 5 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital117 mio100 ax100 hnf99 lsp94 ukn91 mio100 lsp44 div100 bol100 ite100 ukn100 eq193 hnf88 smp100 dnf116 smp93 tf100 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms 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...