./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/stpcpy.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/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-cad4683 [2019-11-16 00:29:04,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:29:04,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:29:04,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:29:04,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:29:04,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:29:04,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:29:04,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:29:04,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:29:04,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:29:04,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:29:04,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:29:04,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:29:04,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:29:04,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:29:04,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:29:04,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:29:04,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:29:04,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:29:04,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:29:04,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:29:04,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:29:04,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:29:04,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:29:04,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:29:04,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:29:04,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:29:04,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:29:04,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:29:04,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:29:04,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:29:04,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:29:04,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:29:04,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:29:04,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:29:04,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:29:04,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:29:04,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:29:04,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:29:04,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:29:04,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:29:04,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-16 00:29:04,215 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:29:04,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:29:04,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:29:04,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:29:04,226 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:29:04,226 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-16 00:29:04,226 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-16 00:29:04,227 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-16 00:29:04,227 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-16 00:29:04,227 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-16 00:29:04,227 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-16 00:29:04,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:29:04,228 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:29:04,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:29:04,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:29:04,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-16 00:29:04,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-16 00:29:04,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-16 00:29:04,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:29:04,230 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-16 00:29:04,230 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:29:04,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-16 00:29:04,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:29:04,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:29:04,231 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-16 00:29:04,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:29:04,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:29:04,232 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-16 00:29:04,233 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-16 00:29:04,236 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_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/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 [2019-11-16 00:29:04,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:29:04,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:29:04,282 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:29:04,283 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:29:04,284 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:29:04,285 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/bin/uautomizer/../../sv-benchmarks/c/termination-libowfat/stpcpy.i [2019-11-16 00:29:04,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/bin/uautomizer/data/358fbb4cb/7853fd044c264870bf579480fbbea9ff/FLAGbc1974c62 [2019-11-16 00:29:04,790 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:29:04,791 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/sv-benchmarks/c/termination-libowfat/stpcpy.i [2019-11-16 00:29:04,803 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/bin/uautomizer/data/358fbb4cb/7853fd044c264870bf579480fbbea9ff/FLAGbc1974c62 [2019-11-16 00:29:05,140 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/bin/uautomizer/data/358fbb4cb/7853fd044c264870bf579480fbbea9ff [2019-11-16 00:29:05,143 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:29:05,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:29:05,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:29:05,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:29:05,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:29:05,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:29:05" (1/1) ... [2019-11-16 00:29:05,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fcd496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05, skipping insertion in model container [2019-11-16 00:29:05,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:29:05" (1/1) ... [2019-11-16 00:29:05,164 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:29:05,211 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:29:05,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:29:05,537 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:29:05,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:29:05,620 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:29:05,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05 WrapperNode [2019-11-16 00:29:05,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:29:05,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:29:05,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:29:05,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:29:05,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05" (1/1) ... [2019-11-16 00:29:05,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05" (1/1) ... [2019-11-16 00:29:05,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:29:05,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:29:05,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:29:05,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:29:05,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05" (1/1) ... [2019-11-16 00:29:05,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05" (1/1) ... [2019-11-16 00:29:05,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05" (1/1) ... [2019-11-16 00:29:05,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05" (1/1) ... [2019-11-16 00:29:05,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05" (1/1) ... [2019-11-16 00:29:05,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05" (1/1) ... [2019-11-16 00:29:05,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05" (1/1) ... [2019-11-16 00:29:05,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:29:05,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:29:05,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:29:05,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:29:05,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c49ea29-b6a4-4757-a2f9-a344ac2b60f9/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 [2019-11-16 00:29:05,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:29:05,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:29:05,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:29:05,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:29:05,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:29:05,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:29:06,134 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:29:06,134 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-16 00:29:06,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:29:06 BoogieIcfgContainer [2019-11-16 00:29:06,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:29:06,136 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-16 00:29:06,136 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-16 00:29:06,141 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-16 00:29:06,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:29:06,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:29:05" (1/3) ... [2019-11-16 00:29:06,143 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32e1a5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:29:06, skipping insertion in model container [2019-11-16 00:29:06,143 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:29:06,144 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:05" (2/3) ... [2019-11-16 00:29:06,144 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32e1a5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:29:06, skipping insertion in model container [2019-11-16 00:29:06,144 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:29:06,144 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:29:06" (3/3) ... [2019-11-16 00:29:06,147 INFO L371 chiAutomizerObserver]: Analyzing ICFG stpcpy.i [2019-11-16 00:29:06,201 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-16 00:29:06,201 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-16 00:29:06,202 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-16 00:29:06,202 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:29:06,202 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:29:06,202 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-16 00:29:06,202 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:29:06,203 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-16 00:29:06,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-16 00:29:06,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:29:06,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:29:06,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:29:06,247 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-16 00:29:06,247 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-16 00:29:06,247 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-16 00:29:06,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-16 00:29:06,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:29:06,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:29:06,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:29:06,249 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-16 00:29:06,249 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-16 00:29:06,257 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 11#L512true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet7;havoc main_#t~nondet7; 4#L516true assume !(main_~out_len~0 < main_~in_len~0);call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;stpcpy_#in~dst.base, stpcpy_#in~dst.offset, stpcpy_#in~src.base, stpcpy_#in~src.offset := main_~out~0.base, main_~out~0.offset, main_~in~0.base, main_~in~0.offset;havoc stpcpy_#res.base, stpcpy_#res.offset;havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset, stpcpy_#t~post3.base, stpcpy_#t~post3.offset, stpcpy_#t~mem4, stpcpy_~dst.base, stpcpy_~dst.offset, stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#in~dst.base, stpcpy_#in~dst.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#in~src.base, stpcpy_#in~src.offset; 6#L507-3true [2019-11-16 00:29:06,257 INFO L793 eck$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 [2019-11-16 00:29:06,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:06,262 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-11-16 00:29:06,267 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:06,267 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994500667] [2019-11-16 00:29:06,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:06,268 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:06,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:29:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:29:06,405 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:29:06,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:06,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2019-11-16 00:29:06,407 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:06,407 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997810142] [2019-11-16 00:29:06,407 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:06,408 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:06,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:29:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:29:06,433 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:29:06,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:06,434 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2019-11-16 00:29:06,435 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:06,435 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190841948] [2019-11-16 00:29:06,435 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:06,435 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:06,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:29:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:29:06,497 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:29:07,101 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-11-16 00:29:07,223 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-11-16 00:29:07,231 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:29:07,232 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:29:07,232 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:29:07,232 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:29:07,232 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-16 00:29:07,233 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:29:07,233 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:29:07,233 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:29:07,233 INFO L131 ssoRankerPreferences]: Filename of dumped script: stpcpy.i_Iteration1_Lasso [2019-11-16 00:29:07,233 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:29:07,233 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:29:07,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,605 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-11-16 00:29:07,800 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-11-16 00:29:07,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:07,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:29:08,707 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2019-11-16 00:29:08,741 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:29:08,746 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-16 00:29:08,748 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 [2019-11-16 00:29:08,750 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:29:08,750 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:29:08,750 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:29:08,751 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:29:08,751 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:29:08,753 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:29:08,753 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:29:08,754 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:29:08,755 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 [2019-11-16 00:29:08,756 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:29:08,756 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:29:08,756 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:29:08,756 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:29:08,756 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:29:08,757 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:29:08,757 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:29:08,758 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:29:08,758 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 [2019-11-16 00:29:08,759 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:29:08,759 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:29:08,759 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:29:08,759 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:29:08,759 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:29:08,760 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:29:08,760 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:29:08,761 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:29:08,761 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 [2019-11-16 00:29:08,762 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:29:08,762 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:29:08,762 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:29:08,762 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:29:08,762 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:29:08,763 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:29:08,763 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:29:08,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:29:08,764 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 [2019-11-16 00:29:08,765 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:29:08,765 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:29:08,765 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:29:08,765 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:29:08,768 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:29:08,768 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:29:08,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:29:08,772 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 [2019-11-16 00:29:08,773 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:29:08,773 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:29:08,773 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:29:08,773 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:29:08,786 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:29:08,786 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:29:08,925 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-16 00:29:08,986 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-16 00:29:08,987 INFO L444 ModelExtractionUtils]: 41 out of 46 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-11-16 00:29:08,989 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-16 00:29:08,990 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-16 00:29:08,991 INFO L510 LassoAnalysis]: Proved termination. [2019-11-16 00:29:08,991 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1, ULTIMATE.start_stpcpy_~dst.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 - 1*ULTIMATE.start_stpcpy_~dst.offset Supporting invariants [] [2019-11-16 00:29:09,047 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2019-11-16 00:29:09,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-16 00:29:09,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:09,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-16 00:29:09,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:29:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:09,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-16 00:29:09,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:29:09,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:09,183 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 [2019-11-16 00:29:09,184 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-11-16 00:29:09,251 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. [2019-11-16 00:29:09,252 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 [2019-11-16 00:29:09,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:29:09,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2019-11-16 00:29:09,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-16 00:29:09,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:29:09,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-16 00:29:09,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:29:09,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-16 00:29:09,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:29:09,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 25 transitions. [2019-11-16 00:29:09,260 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-16 00:29:09,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-11-16 00:29:09,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-16 00:29:09,263 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-16 00:29:09,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-16 00:29:09,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-16 00:29:09,263 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:29:09,263 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:29:09,263 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:29:09,263 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-16 00:29:09,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:29:09,264 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-16 00:29:09,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-16 00:29:09,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:29:09 BoogieIcfgContainer [2019-11-16 00:29:09,269 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-16 00:29:09,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:29:09,270 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:29:09,270 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:29:09,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:29:06" (3/4) ... [2019-11-16 00:29:09,274 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:29:09,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:29:09,275 INFO L168 Benchmark]: Toolchain (without parser) took 4130.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -174.3 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:29:09,276 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:29:09,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:29:09,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.82 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. [2019-11-16 00:29:09,277 INFO L168 Benchmark]: Boogie Preprocessor took 64.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:29:09,278 INFO L168 Benchmark]: RCFGBuilder took 398.32 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: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:29:09,279 INFO L168 Benchmark]: BuchiAutomizer took 3133.47 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -9.4 MB). Peak memory consumption was 54.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:29:09,279 INFO L168 Benchmark]: Witness Printer took 4.04 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. [2019-11-16 00:29:09,282 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 472.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.82 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 64.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 398.32 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: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3133.47 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -9.4 MB). Peak memory consumption was 54.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.04 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. * 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 unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * dst and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. 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: inital195 mio100 ax100 hnf98 lsp96 ukn92 mio100 lsp46 div100 bol100 ite100 ukn100 eq195 hnf88 smp100 dnf171 smp97 tf100 neg96 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms 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...