./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-libowfat/stpcpy.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/stpcpy.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer --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 313812bc7f7f65c22e6158e6e59cd01f03c6b884 ........................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:51:51,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:51,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:51,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:51,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:51,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:51,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:51,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:51,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:51,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:51,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:51,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:51,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:51,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:51,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:51,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:51,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:51,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:51,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:51,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:51,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:51,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:51,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:51,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:51,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:51,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:51,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:51,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:51,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:51,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:51,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:51,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:51,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:51,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:51,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:51,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:51,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:51,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:51,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:51,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:51,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:51,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:51:51,954 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:51,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:51,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:51,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:51,965 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:51,965 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:51:51,966 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:51:51,966 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:51:51,966 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:51:51,966 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:51:51,967 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:51:51,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:51,967 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:51:51,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:51,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:51,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:51:51,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:51:51,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:51:51,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:51,969 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:51:51,969 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:51,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:51:51,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:51,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:51,970 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:51:51,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:51,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:51:51,971 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:51:51,972 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:51:51,973 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer 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 -> 313812bc7f7f65c22e6158e6e59cd01f03c6b884 [2019-11-25 08:51:52,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:52,123 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:52,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:52,127 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:52,128 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:52,128 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/../../sv-benchmarks/c/termination-libowfat/stpcpy.i [2019-11-25 08:51:52,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/data/c3f21391e/87e24733890649af9a818c7f42612194/FLAG5419dc36b [2019-11-25 08:51:52,596 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:52,596 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/sv-benchmarks/c/termination-libowfat/stpcpy.i [2019-11-25 08:51:52,607 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/data/c3f21391e/87e24733890649af9a818c7f42612194/FLAG5419dc36b [2019-11-25 08:51:52,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/data/c3f21391e/87e24733890649af9a818c7f42612194 [2019-11-25 08:51:52,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:52,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:52,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:52,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:52,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:52,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514cabe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52, skipping insertion in model container [2019-11-25 08:51:52,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:52,675 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:53,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:53,113 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:53,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:53,218 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:53,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53 WrapperNode [2019-11-25 08:51:53,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:53,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:53,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:53,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:53,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:53,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:53,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:53,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:53,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:53,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:53,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:53,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:53,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/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 [2019-11-25 08:51:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:51:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:51:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:53,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:53,582 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:53,582 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-25 08:51:53,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:53 BoogieIcfgContainer [2019-11-25 08:51:53,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:53,585 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:51:53,585 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:51:53,588 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:51:53,589 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:51:53,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:51:52" (1/3) ... [2019-11-25 08:51:53,591 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ca686a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:51:53, skipping insertion in model container [2019-11-25 08:51:53,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:51:53,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (2/3) ... [2019-11-25 08:51:53,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ca686a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:51:53, skipping insertion in model container [2019-11-25 08:51:53,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:51:53,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:53" (3/3) ... [2019-11-25 08:51:53,594 INFO L371 chiAutomizerObserver]: Analyzing ICFG stpcpy.i [2019-11-25 08:51:53,670 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:51:53,670 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:51:53,672 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:51:53,672 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:53,672 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:53,672 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:51:53,673 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:53,673 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:51:53,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-25 08:51:53,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:51:53,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:51:53,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:51:53,728 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-25 08:51:53,728 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:51:53,729 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:51:53,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-25 08:51:53,731 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:51:53,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:51:53,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:51:53,732 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-25 08:51:53,732 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:51:53,739 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 11#L512true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet7;havoc main_#t~nondet7; 4#L516true assume !(main_~out_len~0 < main_~in_len~0);call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;stpcpy_#in~dst.base, stpcpy_#in~dst.offset, stpcpy_#in~src.base, stpcpy_#in~src.offset := main_~out~0.base, main_~out~0.offset, main_~in~0.base, main_~in~0.offset;havoc stpcpy_#res.base, stpcpy_#res.offset;havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset, stpcpy_#t~post3.base, stpcpy_#t~post3.offset, stpcpy_#t~mem4, stpcpy_~dst.base, stpcpy_~dst.offset, stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#in~dst.base, stpcpy_#in~dst.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#in~src.base, stpcpy_#in~src.offset; 6#L507-3true [2019-11-25 08:51:53,740 INFO L796 eck$LassoCheckResult]: Loop: 6#L507-3true stpcpy_#t~post2.base, stpcpy_#t~post2.offset := stpcpy_~dst.base, stpcpy_~dst.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#t~post2.base, 1 + stpcpy_#t~post2.offset;stpcpy_#t~post3.base, stpcpy_#t~post3.offset := stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#t~post3.base, 1 + stpcpy_#t~post3.offset;call stpcpy_#t~mem4 := read~int(stpcpy_#t~post3.base, stpcpy_#t~post3.offset, 1);call write~int(stpcpy_#t~mem4, stpcpy_#t~post2.base, stpcpy_#t~post2.offset, 1); 13#L507-1true assume !!(0 != stpcpy_#t~mem4);havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset;havoc stpcpy_#t~post3.base, stpcpy_#t~post3.offset;havoc stpcpy_#t~mem4; 6#L507-3true [2019-11-25 08:51:53,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:53,746 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-11-25 08:51:53,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:53,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953725183] [2019-11-25 08:51:53,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:53,916 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:53,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:53,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2019-11-25 08:51:53,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:53,918 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219194763] [2019-11-25 08:51:53,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:53,937 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:53,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:53,939 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2019-11-25 08:51:53,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:53,940 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954799277] [2019-11-25 08:51:53,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:54,004 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:54,477 WARN L192 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-11-25 08:51:54,589 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-11-25 08:51:54,600 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:51:54,600 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:51:54,601 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:51:54,601 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:51:54,601 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:51:54,601 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:54,602 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:51:54,602 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:51:54,602 INFO L133 ssoRankerPreferences]: Filename of dumped script: stpcpy.i_Iteration1_Lasso [2019-11-25 08:51:54,602 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:51:54,602 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:51:54,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:54,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:54,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:54,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:54,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:54,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:54,945 WARN L192 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-11-25 08:51:55,115 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-11-25 08:51:55,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:55,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:55,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:55,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:55,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:55,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:55,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:55,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:55,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:55,754 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:51:55,764 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:55,786 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 [2019-11-25 08:51:55,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:55,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:51:55,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:55,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:55,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:55,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:51:55,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:51:55,795 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:51:55,813 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 [2019-11-25 08:51:55,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:55,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:51:55,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:55,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:55,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:55,816 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:51:55,816 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 [2019-11-25 08:51:55,819 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:55,837 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:51:55,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:55,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:51:55,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:55,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:55,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:55,842 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:51:55,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:51:55,844 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:51:55,860 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 [2019-11-25 08:51:55,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:55,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:51:55,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:55,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:55,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:55,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:51:55,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:55,867 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:55,880 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 [2019-11-25 08:51:55,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:55,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:55,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:55,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:55,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:51:55,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:51:55,893 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/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 [2019-11-25 08:51:55,905 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 [2019-11-25 08:51:55,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:55,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:55,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:55,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:55,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:51:55,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:51:55,962 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:51:56,073 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-11-25 08:51:56,073 INFO L444 ModelExtractionUtils]: 13 out of 46 variables were initially zero. Simplification set additionally 30 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4510c7e4-9a39-4710-9a8a-c472b7de290e/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:51:56,118 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:56,122 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:51:56,122 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:51:56,123 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_stpcpy_~dst.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1) = -1*ULTIMATE.start_stpcpy_~dst.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 Supporting invariants [] [2019-11-25 08:51:56,166 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2019-11-25 08:51:56,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-25 08:51:56,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:56,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:51:56,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:56,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-25 08:51:56,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:56,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:56,303 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 [2019-11-25 08:51:56,304 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-11-25 08:51:56,371 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 23 states and 25 transitions. Complement of second has 6 states. [2019-11-25 08:51:56,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:51:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:51:56,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2019-11-25 08:51:56,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-25 08:51:56,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:51:56,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-25 08:51:56,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:51:56,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-25 08:51:56,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:51:56,382 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 25 transitions. [2019-11-25 08:51:56,384 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:51:56,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-11-25 08:51:56,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:51:56,388 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:51:56,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:51:56,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:51:56,389 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:56,389 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:56,389 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:56,390 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:51:56,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:51:56,390 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:51:56,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:51:56,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:51:56 BoogieIcfgContainer [2019-11-25 08:51:56,396 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:51:56,396 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:56,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:56,397 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:56,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:53" (3/4) ... [2019-11-25 08:51:56,401 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:51:56,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:56,402 INFO L168 Benchmark]: Toolchain (without parser) took 3781.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 940.7 MB in the beginning and 1.0 GB in the end (delta: -93.5 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:56,403 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:56,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:56,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.60 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. [2019-11-25 08:51:56,405 INFO L168 Benchmark]: Boogie Preprocessor took 27.80 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:56,405 INFO L168 Benchmark]: RCFGBuilder took 286.04 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:56,406 INFO L168 Benchmark]: BuchiAutomizer took 2811.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.6 MB). Peak memory consumption was 74.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:56,407 INFO L168 Benchmark]: Witness Printer took 4.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:56,409 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 597.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.80 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 286.04 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2811.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.6 MB). Peak memory consumption was 74.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * dst + unknown-#length-unknown[__builtin_alloca (out_len)] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 10 SDslu, 2 SDs, 0 SdLazy, 6 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital190 mio100 ax100 hnf98 lsp96 ukn92 mio100 lsp47 div100 bol100 ite100 ukn100 eq195 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms 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...