./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/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 32bit --witnessprinter.graph.data.programhash 10bdb405bd6bca2bddb8b686c44dad291e109402 ............................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:30:10,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:30:10,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:30:10,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:30:10,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:30:10,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:30:10,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:30:10,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:30:10,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:30:10,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:30:10,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:30:10,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:30:10,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:30:10,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:30:10,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:30:10,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:30:10,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:30:10,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:30:10,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:30:10,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:30:10,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:30:10,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:30:10,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:30:10,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:30:10,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:30:10,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:30:10,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:30:10,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:30:10,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:30:10,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:30:10,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:30:10,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:30:10,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:30:10,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:30:10,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:30:10,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:30:10,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:30:10,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:30:10,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:30:10,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:30:10,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:30:10,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 10:30:10,216 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:30:10,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:30:10,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:30:10,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:30:10,217 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:30:10,217 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 10:30:10,217 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 10:30:10,218 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 10:30:10,218 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 10:30:10,218 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 10:30:10,218 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 10:30:10,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:30:10,218 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:30:10,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:30:10,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:30:10,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:30:10,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:30:10,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 10:30:10,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 10:30:10,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 10:30:10,219 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:30:10,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:30:10,219 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 10:30:10,219 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:30:10,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 10:30:10,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:30:10,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:30:10,220 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 10:30:10,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:30:10,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:30:10,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:30:10,220 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 10:30:10,221 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 10:30:10,221 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_f8f36922-81a9-433c-aa39-e89bb489e684/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10bdb405bd6bca2bddb8b686c44dad291e109402 [2019-12-07 10:30:10,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:30:10,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:30:10,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:30:10,330 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:30:10,330 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:30:10,331 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2019-12-07 10:30:10,369 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/bin/uautomizer/data/a71b95036/1961d84ff5c84960a4e31a29b6385940/FLAG7de14d191 [2019-12-07 10:30:10,767 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:30:10,767 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2019-12-07 10:30:10,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/bin/uautomizer/data/a71b95036/1961d84ff5c84960a4e31a29b6385940/FLAG7de14d191 [2019-12-07 10:30:10,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/bin/uautomizer/data/a71b95036/1961d84ff5c84960a4e31a29b6385940 [2019-12-07 10:30:10,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:30:10,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:30:10,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:30:10,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:30:10,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:30:10,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:30:10" (1/1) ... [2019-12-07 10:30:10,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669bfa11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:10, skipping insertion in model container [2019-12-07 10:30:10,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:30:10" (1/1) ... [2019-12-07 10:30:10,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:30:10,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:30:11,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:30:11,027 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:30:11,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:30:11,083 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:30:11,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:11 WrapperNode [2019-12-07 10:30:11,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:30:11,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:30:11,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:30:11,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:30:11,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:11" (1/1) ... [2019-12-07 10:30:11,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:11" (1/1) ... [2019-12-07 10:30:11,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:30:11,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:30:11,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:30:11,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:30:11,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:11" (1/1) ... [2019-12-07 10:30:11,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:11" (1/1) ... [2019-12-07 10:30:11,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:11" (1/1) ... [2019-12-07 10:30:11,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:11" (1/1) ... [2019-12-07 10:30:11,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:11" (1/1) ... [2019-12-07 10:30:11,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:11" (1/1) ... [2019-12-07 10:30:11,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:11" (1/1) ... [2019-12-07 10:30:11,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:30:11,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:30:11,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:30:11,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:30:11,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/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 [2019-12-07 10:30:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 10:30:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:30:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:30:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:30:11,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:30:11,305 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:30:11,305 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 10:30:11,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:30:11 BoogieIcfgContainer [2019-12-07 10:30:11,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:30:11,307 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 10:30:11,307 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 10:30:11,309 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 10:30:11,309 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:30:11,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 10:30:10" (1/3) ... [2019-12-07 10:30:11,310 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@716ae711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:30:11, skipping insertion in model container [2019-12-07 10:30:11,310 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:30:11,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:30:11" (2/3) ... [2019-12-07 10:30:11,311 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@716ae711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:30:11, skipping insertion in model container [2019-12-07 10:30:11,311 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:30:11,311 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:30:11" (3/3) ... [2019-12-07 10:30:11,312 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemset-alloca-1.i [2019-12-07 10:30:11,341 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 10:30:11,341 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 10:30:11,341 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 10:30:11,341 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:30:11,341 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:30:11,341 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 10:30:11,342 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:30:11,342 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 10:30:11,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-12-07 10:30:11,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:30:11,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:30:11,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:30:11,368 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:30:11,368 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:30:11,369 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 10:30:11,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-12-07 10:30:11,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:30:11,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:30:11,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:30:11,370 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:30:11,370 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:30:11,375 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~ret8.base, main_#t~ret8.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~n~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~c~0 := main_#t~nondet6;havoc main_#t~nondet6; 16#L527true assume !(main_~length~0 < 1); 6#L527-2true assume !(main_~n~0 < 1); 14#L530-1true call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;cmemset_#in~dst.base, cmemset_#in~dst.offset, cmemset_#in~c, cmemset_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemset_#res.base, cmemset_#res.offset;havoc cmemset_#t~post3.base, cmemset_#t~post3.offset, cmemset_#t~pre2, cmemset_~d~0.base, cmemset_~d~0.offset, cmemset_~dst.base, cmemset_~dst.offset, cmemset_~c, cmemset_~n;cmemset_~dst.base, cmemset_~dst.offset := cmemset_#in~dst.base, cmemset_#in~dst.offset;cmemset_~c := cmemset_#in~c;cmemset_~n := cmemset_#in~n; 4#L515true assume 0 != cmemset_~n % 4294967296;cmemset_~d~0.base, cmemset_~d~0.offset := cmemset_~dst.base, cmemset_~dst.offset; 9#L517-4true [2019-12-07 10:30:11,375 INFO L796 eck$LassoCheckResult]: Loop: 9#L517-4true cmemset_#t~post3.base, cmemset_#t~post3.offset := cmemset_~d~0.base, cmemset_~d~0.offset;cmemset_~d~0.base, cmemset_~d~0.offset := cmemset_#t~post3.base, 1 + cmemset_#t~post3.offset;call write~int(cmemset_~c, cmemset_#t~post3.base, cmemset_#t~post3.offset, 1);havoc cmemset_#t~post3.base, cmemset_#t~post3.offset; 3#L517-1true cmemset_#t~pre2 := cmemset_~n - 1;cmemset_~n := cmemset_~n - 1; 5#L517-2true assume !!(0 != cmemset_#t~pre2 % 4294967296);havoc cmemset_#t~pre2; 9#L517-4true [2019-12-07 10:30:11,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:30:11,379 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2019-12-07 10:30:11,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:30:11,385 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364273524] [2019-12-07 10:30:11,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:30:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:30:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:30:11,478 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:30:11,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:30:11,479 INFO L82 PathProgramCache]: Analyzing trace with hash 51706, now seen corresponding path program 1 times [2019-12-07 10:30:11,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:30:11,480 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412810024] [2019-12-07 10:30:11,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:30:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:30:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:30:11,497 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:30:11,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:30:11,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1298288271, now seen corresponding path program 1 times [2019-12-07 10:30:11,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:30:11,499 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932771145] [2019-12-07 10:30:11,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:30:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:30:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:30:11,535 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:30:11,725 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-12-07 10:30:11,778 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:30:11,779 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:30:11,779 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:30:11,779 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:30:11,779 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:30:11,779 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:30:11,779 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:30:11,779 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:30:11,779 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemset-alloca-1.i_Iteration1_Lasso [2019-12-07 10:30:11,779 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:30:11,779 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:30:11,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:11,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:30:12,159 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-12-07 10:30:12,363 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:30:12,368 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/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 [2019-12-07 10:30:12,372 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 [2019-12-07 10:30:12,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:30:12,374 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:30:12,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:30:12,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:30:12,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:30:12,376 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:30:12,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:30:12,378 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:30:12,382 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 [2019-12-07 10:30:12,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:30:12,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:30:12,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:30:12,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:30:12,388 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:30:12,389 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:30:12,393 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/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 [2019-12-07 10:30:12,401 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 [2019-12-07 10:30:12,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:30:12,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:30:12,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:30:12,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:30:12,408 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:30:12,408 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:30:12,416 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:30:12,420 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 [2019-12-07 10:30:12,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:30:12,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:30:12,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:30:12,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:30:12,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:30:12,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:30:12,431 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/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 [2019-12-07 10:30:12,435 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 [2019-12-07 10:30:12,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:30:12,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:30:12,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:30:12,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:30:12,438 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:30:12,438 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:30:12,441 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/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 [2019-12-07 10:30:12,445 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 [2019-12-07 10:30:12,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:30:12,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:30:12,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:30:12,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:30:12,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:30:12,455 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:30:12,474 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:30:12,494 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-12-07 10:30:12,494 INFO L444 ModelExtractionUtils]: 26 out of 34 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8f36922-81a9-433c-aa39-e89bb489e684/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:30:12,499 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:30:12,502 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 10:30:12,502 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:30:12,503 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cmemset_~d~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1) = -1*ULTIMATE.start_cmemset_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1 Supporting invariants [] [2019-12-07 10:30:12,517 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 10:30:12,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 10:30:12,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:30:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:30:12,565 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 10:30:12,566 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:30:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:30:12,590 INFO L264 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 10:30:12,590 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:30:12,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:30:12,627 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 10:30:12,629 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2019-12-07 10:30:12,682 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 4 states. Result 29 states and 32 transitions. Complement of second has 7 states. [2019-12-07 10:30:12,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:30:12,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 10:30:12,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2019-12-07 10:30:12,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 10:30:12,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:30:12,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 10:30:12,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:30:12,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 6 letters. Loop has 6 letters. [2019-12-07 10:30:12,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:30:12,689 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 32 transitions. [2019-12-07 10:30:12,691 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:30:12,694 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2019-12-07 10:30:12,694 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 10:30:12,695 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 10:30:12,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 10:30:12,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:30:12,695 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:30:12,696 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:30:12,696 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:30:12,696 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 10:30:12,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:30:12,696 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:30:12,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 10:30:12,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 10:30:12 BoogieIcfgContainer [2019-12-07 10:30:12,702 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 10:30:12,702 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:30:12,702 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:30:12,702 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:30:12,703 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:30:11" (3/4) ... [2019-12-07 10:30:12,705 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 10:30:12,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:30:12,707 INFO L168 Benchmark]: Toolchain (without parser) took 1918.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -111.0 MB). Peak memory consumption was 137.3 kB. Max. memory is 11.5 GB. [2019-12-07 10:30:12,707 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:30:12,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:30:12,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:30:12,709 INFO L168 Benchmark]: Boogie Preprocessor took 15.85 ms. Allocated memory is still 1.1 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. [2019-12-07 10:30:12,710 INFO L168 Benchmark]: RCFGBuilder took 178.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:30:12,710 INFO L168 Benchmark]: BuchiAutomizer took 1394.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:30:12,710 INFO L168 Benchmark]: Witness Printer took 3.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:30:12,712 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 294.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.85 ms. Allocated memory is still 1.1 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 178.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1394.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * d + unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. 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: 14 SDtfs, 14 SDslu, 11 SDs, 0 SdLazy, 9 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital137 mio100 ax113 hnf98 lsp82 ukn94 mio100 lsp57 div211 bol100 ite100 ukn100 eq169 hnf64 smp91 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 3 VariablesLoop: 2 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...