./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.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/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/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 847cffc9d6215c496aa28b39684013a0c5d7b1c3 ..................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:56:59,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:59,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:59,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:59,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:59,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:59,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:59,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:59,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:59,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:59,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:59,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:59,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:59,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:59,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:59,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:59,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:59,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:59,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:59,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:59,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:59,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:59,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:59,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:59,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:59,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:59,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:59,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:59,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:59,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:59,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:59,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:59,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:59,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:59,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:59,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:59,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:59,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:59,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:59,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:59,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:59,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:56:59,232 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:59,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:59,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:59,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:59,233 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:59,234 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:56:59,234 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:56:59,234 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:56:59,234 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:56:59,234 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:56:59,234 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:56:59,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:59,235 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:56:59,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:59,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:59,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:56:59,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:56:59,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:56:59,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:59,236 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:56:59,236 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:59,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:56:59,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:59,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:59,237 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:56:59,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:59,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:59,237 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:56:59,238 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:56:59,238 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/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/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 -> 847cffc9d6215c496aa28b39684013a0c5d7b1c3 [2019-10-22 08:56:59,263 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:59,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:59,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:59,278 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:59,278 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:59,279 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.i [2019-10-22 08:56:59,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/bin/uautomizer/data/c1cd56277/4a150f9cffdb4bada1abb7dba5f8cfe7/FLAGe2415d439 [2019-10-22 08:56:59,741 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:59,741 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.i [2019-10-22 08:56:59,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/bin/uautomizer/data/c1cd56277/4a150f9cffdb4bada1abb7dba5f8cfe7/FLAGe2415d439 [2019-10-22 08:56:59,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/bin/uautomizer/data/c1cd56277/4a150f9cffdb4bada1abb7dba5f8cfe7 [2019-10-22 08:56:59,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:59,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:59,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:59,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:59,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:59,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:59" (1/1) ... [2019-10-22 08:56:59,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39466626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:59, skipping insertion in model container [2019-10-22 08:56:59,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:59" (1/1) ... [2019-10-22 08:56:59,781 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:59,812 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:00,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:00,146 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:00,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:00,240 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:00,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:00 WrapperNode [2019-10-22 08:57:00,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:00,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:00,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:00,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:00,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:00" (1/1) ... [2019-10-22 08:57:00,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:00" (1/1) ... [2019-10-22 08:57:00,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:00,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:00,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:00,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:00,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:00" (1/1) ... [2019-10-22 08:57:00,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:00" (1/1) ... [2019-10-22 08:57:00,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:00" (1/1) ... [2019-10-22 08:57:00,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:00" (1/1) ... [2019-10-22 08:57:00,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:00" (1/1) ... [2019-10-22 08:57:00,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:00" (1/1) ... [2019-10-22 08:57:00,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:00" (1/1) ... [2019-10-22 08:57:00,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:00,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:00,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:00,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:00,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8f5cdf70-b27d-45fe-8a85-220ed41a4f9d/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 [2019-10-22 08:57:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:57:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:00,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:00,816 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:00,816 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:57:00,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:00 BoogieIcfgContainer [2019-10-22 08:57:00,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:00,818 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:57:00,818 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:57:00,822 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:57:00,823 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:00,823 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:56:59" (1/3) ... [2019-10-22 08:57:00,824 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@757dcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:00, skipping insertion in model container [2019-10-22 08:57:00,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:00,825 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:00" (2/3) ... [2019-10-22 08:57:00,825 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@757dcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:00, skipping insertion in model container [2019-10-22 08:57:00,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:00,827 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:00" (3/3) ... [2019-10-22 08:57:00,829 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrlen-alloca-1.i [2019-10-22 08:57:00,874 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:57:00,874 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:57:00,875 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:57:00,875 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:00,875 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:00,875 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:57:00,875 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:00,875 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:57:00,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 08:57:00,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:00,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:00,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:00,925 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:57:00,925 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:57:00,925 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:57:00,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 08:57:00,926 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:00,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:00,927 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:00,927 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:57:00,927 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:57:00,933 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~ret6, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 8#L556true assume !(main_~length1~0 < 1); 13#L556-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 5#L550-3true [2019-10-22 08:57:00,934 INFO L793 eck$LassoCheckResult]: Loop: 5#L550-3true call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 12#L550-1true assume !!(0 != cstrlen_#t~mem2);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, 1 + cstrlen_#t~post3.offset;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 5#L550-3true [2019-10-22 08:57:00,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:00,939 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-10-22 08:57:00,945 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:00,946 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837050748] [2019-10-22 08:57:00,946 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:00,946 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:00,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:01,075 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:01,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:01,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2019-10-22 08:57:01,077 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:01,078 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618681624] [2019-10-22 08:57:01,078 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:01,078 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:01,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:01,093 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:01,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:01,095 INFO L82 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2019-10-22 08:57:01,095 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:01,096 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871855739] [2019-10-22 08:57:01,096 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:01,096 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:01,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:01,148 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:01,412 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-10-22 08:57:01,495 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:01,496 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:01,496 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:01,496 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:01,496 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:57:01,496 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:01,496 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:01,497 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:01,497 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-1.i_Iteration1_Lasso [2019-10-22 08:57:01,497 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:01,497 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:01,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:01,689 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-10-22 08:57:01,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:01,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:01,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:01,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:01,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:01,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:01,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:01,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:01,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:01,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:01,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:01,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:02,199 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:57:02,205 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:57:02,207 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 [2019-10-22 08:57:02,209 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:02,209 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:02,209 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:02,210 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:02,215 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:02,216 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:02,257 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:02,262 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 [2019-10-22 08:57:02,264 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:02,264 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:02,265 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:02,265 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:02,266 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:02,267 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:02,274 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:02,277 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 [2019-10-22 08:57:02,278 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:02,279 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:02,279 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:02,279 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:02,281 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:02,281 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:02,288 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:02,291 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 [2019-10-22 08:57:02,292 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:02,293 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-10-22 08:57:02,294 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:02,294 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:02,302 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-10-22 08:57:02,304 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:02,349 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:02,354 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 [2019-10-22 08:57:02,355 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:02,355 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:02,356 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:02,356 INFO L203 nArgumentSynthesizer]: 2 loop disjuncts [2019-10-22 08:57:02,356 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:02,357 INFO L400 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-10-22 08:57:02,358 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:02,363 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:02,369 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 [2019-10-22 08:57:02,370 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:02,370 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:02,371 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:02,371 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:02,380 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:02,381 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:02,437 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:57:02,476 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-10-22 08:57:02,476 INFO L444 ModelExtractionUtils]: 23 out of 28 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-10-22 08:57:02,479 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:57:02,481 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 08:57:02,481 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:57:02,482 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1 Supporting invariants [] [2019-10-22 08:57:02,495 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-10-22 08:57:02,504 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-22 08:57:02,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:02,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:57:02,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:02,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 08:57:02,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:02,591 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 [2019-10-22 08:57:02,592 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-10-22 08:57:02,640 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 23 states and 26 transitions. Complement of second has 5 states. [2019-10-22 08:57:02,641 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 [2019-10-22 08:57:02,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:57:02,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-10-22 08:57:02,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2019-10-22 08:57:02,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:02,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 2 letters. [2019-10-22 08:57:02,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:02,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 4 letters. [2019-10-22 08:57:02,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:02,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2019-10-22 08:57:02,652 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:57:02,655 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-10-22 08:57:02,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:57:02,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:57:02,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:57:02,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:57:02,658 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:02,659 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:02,659 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:02,659 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:57:02,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:57:02,659 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:57:02,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:57:02,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:57:02 BoogieIcfgContainer [2019-10-22 08:57:02,665 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:57:02,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:02,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:02,666 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:02,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:00" (3/4) ... [2019-10-22 08:57:02,670 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:57:02,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:02,672 INFO L168 Benchmark]: Toolchain (without parser) took 2905.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 944.5 MB in the beginning and 941.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 166.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:02,673 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:02,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -209.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:02,674 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.16 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:02,675 INFO L168 Benchmark]: Boogie Preprocessor took 50.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:02,675 INFO L168 Benchmark]: RCFGBuilder took 468.67 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:02,676 INFO L168 Benchmark]: BuchiAutomizer took 1847.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.5 MB in the end (delta: 178.2 MB). Peak memory consumption was 178.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:02,676 INFO L168 Benchmark]: Witness Printer took 4.58 ms. Allocated memory is still 1.2 GB. Free memory is still 941.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:02,680 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 473.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -209.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.16 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 468.67 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1847.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.5 MB in the end (delta: 178.2 MB). Peak memory consumption was 178.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.58 ms. Allocated memory is still 1.2 GB. Free memory is still 941.5 MB. 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 * p + unknown-#length-unknown[p] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. 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: 9 SDtfs, 15 SDslu, 4 SDs, 0 SdLazy, 5 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital114 mio100 ax115 hnf99 lsp81 ukn91 mio100 lsp45 div100 bol100 ite100 ukn100 eq193 hnf88 smp100 dnf109 smp100 tf100 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 58ms VariablesStem: 6 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...