./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-libowfat/strcasecmp.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/strcasecmp.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/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 1c2f9d054b4fbf31aaebd626db3028f09e8a957b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:57:34,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:34,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:34,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:34,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:34,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:34,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:34,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:34,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:34,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:34,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:34,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:34,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:34,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:34,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:34,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:34,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:34,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:34,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:34,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:34,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:34,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:34,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:34,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:34,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:34,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:34,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:34,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:34,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:34,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:34,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:34,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:34,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:34,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:34,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:34,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:34,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:34,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:34,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:34,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:34,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:34,210 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:57:34,235 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:34,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:34,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:34,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:34,237 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:34,237 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:57:34,237 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:57:34,237 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:57:34,238 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:57:34,238 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:57:34,238 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:57:34,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:34,238 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:57:34,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:57:34,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:34,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:57:34,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:57:34,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:57:34,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:34,240 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:57:34,240 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:34,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:57:34,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:34,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:34,240 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:57:34,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:34,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:57:34,241 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:57:34,242 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:57:34,242 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_f950fec4-a4be-48ea-900d-745cd765620d/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 -> 1c2f9d054b4fbf31aaebd626db3028f09e8a957b [2019-11-25 08:57:34,386 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:34,396 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:34,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:34,400 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:34,401 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:34,401 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/../../sv-benchmarks/c/termination-libowfat/strcasecmp.i [2019-11-25 08:57:34,454 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/data/dc7a1de4e/07cf311ecfe54058b2c080fd3d8f6ef1/FLAGdef46e670 [2019-11-25 08:57:34,908 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:34,909 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/sv-benchmarks/c/termination-libowfat/strcasecmp.i [2019-11-25 08:57:34,921 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/data/dc7a1de4e/07cf311ecfe54058b2c080fd3d8f6ef1/FLAGdef46e670 [2019-11-25 08:57:34,939 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/data/dc7a1de4e/07cf311ecfe54058b2c080fd3d8f6ef1 [2019-11-25 08:57:34,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:34,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:34,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:34,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:34,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:34,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:34" (1/1) ... [2019-11-25 08:57:34,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3842dbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:34, skipping insertion in model container [2019-11-25 08:57:34,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:34" (1/1) ... [2019-11-25 08:57:34,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:35,017 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:35,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:35,443 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:35,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:35,541 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:35,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:35 WrapperNode [2019-11-25 08:57:35,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:35,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:35,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:35,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:35,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:35" (1/1) ... [2019-11-25 08:57:35,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:35" (1/1) ... [2019-11-25 08:57:35,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:35,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:35,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:35,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:35,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:35" (1/1) ... [2019-11-25 08:57:35,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:35" (1/1) ... [2019-11-25 08:57:35,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:35" (1/1) ... [2019-11-25 08:57:35,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:35" (1/1) ... [2019-11-25 08:57:35,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:35" (1/1) ... [2019-11-25 08:57:35,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:35" (1/1) ... [2019-11-25 08:57:35,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:35" (1/1) ... [2019-11-25 08:57:35,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:35,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:35,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:35,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:35,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:57:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:57:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:57:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:57:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:35,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:35,902 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:35,902 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-25 08:57:35,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:35 BoogieIcfgContainer [2019-11-25 08:57:35,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:35,904 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:57:35,904 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:57:35,908 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:57:35,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:35,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:57:34" (1/3) ... [2019-11-25 08:57:35,911 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ea7ba80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:35, skipping insertion in model container [2019-11-25 08:57:35,911 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:35,911 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:35" (2/3) ... [2019-11-25 08:57:35,911 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ea7ba80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:35, skipping insertion in model container [2019-11-25 08:57:35,912 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:35,912 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:35" (3/3) ... [2019-11-25 08:57:35,913 INFO L371 chiAutomizerObserver]: Analyzing ICFG strcasecmp.i [2019-11-25 08:57:35,953 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:57:35,954 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:57:35,954 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:57:35,954 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:35,954 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:35,954 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:57:35,955 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:35,955 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:57:35,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-25 08:57:35,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-25 08:57:35,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:35,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:35,990 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-25 08:57:35,991 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:35,991 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:57:35,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-25 08:57:35,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-25 08:57:35,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:35,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:35,993 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-25 08:57:35,993 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:35,999 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet6;havoc main_#t~nondet6; 5#L523true assume !(main_~in_len~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet8;havoc main_#t~nondet8; 18#L527true assume !(main_~out_len~0 < 1);call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~out~0.base, main_~out~0.offset + (main_~out_len~0 - 1), 1);strcasecmp_#in~s1.base, strcasecmp_#in~s1.offset, strcasecmp_#in~s2.base, strcasecmp_#in~s2.offset := main_~in~0.base, main_~in~0.offset, main_~out~0.base, main_~out~0.offset;havoc strcasecmp_#res;havoc strcasecmp_#t~mem2, strcasecmp_#t~mem3, strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset, strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset, strcasecmp_~s1.base, strcasecmp_~s1.offset, strcasecmp_~s2.base, strcasecmp_~s2.offset, strcasecmp_~x2~0, strcasecmp_~x1~0;strcasecmp_~s1.base, strcasecmp_~s1.offset := strcasecmp_#in~s1.base, strcasecmp_#in~s1.offset;strcasecmp_~s2.base, strcasecmp_~s2.offset := strcasecmp_#in~s2.base, strcasecmp_#in~s2.offset;havoc strcasecmp_~x2~0;havoc strcasecmp_~x1~0; 14#L510-2true [2019-11-25 08:57:35,999 INFO L796 eck$LassoCheckResult]: Loop: 14#L510-2true assume !false;call strcasecmp_#t~mem2 := read~int(strcasecmp_~s2.base, strcasecmp_~s2.offset, 1);strcasecmp_~x2~0 := strcasecmp_#t~mem2 - 65;havoc strcasecmp_#t~mem2; 7#L511true assume strcasecmp_~x2~0 % 4294967296 < 26;strcasecmp_~x2~0 := 32 + strcasecmp_~x2~0; 11#L511-2true call strcasecmp_#t~mem3 := read~int(strcasecmp_~s1.base, strcasecmp_~s1.offset, 1);strcasecmp_~x1~0 := strcasecmp_#t~mem3 - 65;havoc strcasecmp_#t~mem3; 6#L512true assume !(strcasecmp_~x1~0 % 4294967296 < 26); 9#L512-2true strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset := strcasecmp_~s1.base, strcasecmp_~s1.offset;strcasecmp_~s1.base, strcasecmp_~s1.offset := strcasecmp_#t~post4.base, 1 + strcasecmp_#t~post4.offset;havoc strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset;strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset := strcasecmp_~s2.base, strcasecmp_~s2.offset;strcasecmp_~s2.base, strcasecmp_~s2.offset := strcasecmp_#t~post5.base, 1 + strcasecmp_#t~post5.offset;havoc strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset; 4#L514true assume !(strcasecmp_~x2~0 % 4294967296 != strcasecmp_~x1~0 % 4294967296); 3#L516true assume !(4294967231 == strcasecmp_~x1~0 % 4294967296); 14#L510-2true [2019-11-25 08:57:36,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:36,004 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-11-25 08:57:36,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:36,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949253656] [2019-11-25 08:57:36,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:36,169 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:36,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:36,171 INFO L82 PathProgramCache]: Analyzing trace with hash -380472609, now seen corresponding path program 1 times [2019-11-25 08:57:36,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:36,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607861904] [2019-11-25 08:57:36,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:36,217 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:36,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:36,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1579348248, now seen corresponding path program 1 times [2019-11-25 08:57:36,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:36,220 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85690701] [2019-11-25 08:57:36,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:36,339 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:36,558 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-11-25 08:57:37,018 WARN L192 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-11-25 08:57:37,138 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-11-25 08:57:37,149 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:37,150 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:37,150 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:37,150 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:37,150 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:37,150 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:37,151 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:37,151 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:37,151 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration1_Lasso [2019-11-25 08:57:37,151 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:37,152 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:37,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:37,606 WARN L192 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-11-25 08:57:37,962 WARN L192 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-11-25 08:57:37,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:37,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:37,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:37,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:37,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:37,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:37,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:37,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:37,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:37,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:37,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:37,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:38,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:38,255 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2019-11-25 08:57:38,738 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:38,742 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:38,757 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:38,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:38,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:38,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:38,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:38,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:38,793 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:57:38,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:38,818 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:38,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:38,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:38,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:38,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:38,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:38,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:38,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:57:38,836 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:38,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:38,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:38,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:38,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:38,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:38,862 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:38,862 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:38,867 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:38,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:38,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:38,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:38,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:38,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:38,897 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:38,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:38,908 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:38,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:38,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:38,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:38,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:38,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:38,927 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:38,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:57:38,934 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:38,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:38,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:38,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:38,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:38,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:38,953 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:38,953 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:38,960 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:38,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:38,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:38,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:38,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:38,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:38,980 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:38,980 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:38,984 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:57:38,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:38,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:38,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:38,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:39,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:39,017 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:39,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:57:39,041 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:39,308 INFO L443 ModelExtractionUtils]: Simplification made 30 calls to the SMT solver. [2019-11-25 08:57:39,309 INFO L444 ModelExtractionUtils]: 11 out of 49 variables were initially zero. Simplification set additionally 35 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f950fec4-a4be-48ea-900d-745cd765620d/bin/uautomizer/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:39,322 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:57:39,326 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:57:39,326 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:39,327 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcasecmp_~s2.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1) = -1*ULTIMATE.start_strcasecmp_~s2.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1 Supporting invariants [] [2019-11-25 08:57:39,407 INFO L297 tatePredicateManager]: 16 out of 18 supporting invariants were superfluous and have been removed [2019-11-25 08:57:39,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-25 08:57:39,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:39,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-25 08:57:39,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:39,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-25 08:57:39,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:39,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:39,586 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-25 08:57:39,587 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 6 states. [2019-11-25 08:57:39,696 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 6 states. Result 35 states and 47 transitions. Complement of second has 9 states. [2019-11-25 08:57:39,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:57:39,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-25 08:57:39,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2019-11-25 08:57:39,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 4 letters. Loop has 7 letters. [2019-11-25 08:57:39,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:39,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 11 letters. Loop has 7 letters. [2019-11-25 08:57:39,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:39,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 4 letters. Loop has 14 letters. [2019-11-25 08:57:39,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:39,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 47 transitions. [2019-11-25 08:57:39,708 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:57:39,711 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2019-11-25 08:57:39,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:57:39,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:57:39,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:57:39,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:39,713 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:39,713 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:39,714 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:39,714 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:57:39,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:57:39,714 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:57:39,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:57:39,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:57:39 BoogieIcfgContainer [2019-11-25 08:57:39,720 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:57:39,720 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:57:39,720 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:57:39,720 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:57:39,721 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:35" (3/4) ... [2019-11-25 08:57:39,724 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:57:39,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:57:39,726 INFO L168 Benchmark]: Toolchain (without parser) took 4781.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 938.0 MB in the beginning and 915.4 MB in the end (delta: 22.6 MB). Peak memory consumption was 146.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:39,726 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:39,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:39,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:39,728 INFO L168 Benchmark]: Boogie Preprocessor took 24.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:39,728 INFO L168 Benchmark]: RCFGBuilder took 294.08 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:39,729 INFO L168 Benchmark]: BuchiAutomizer took 3815.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 915.4 MB in the end (delta: 162.9 MB). Peak memory consumption was 162.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:39,729 INFO L168 Benchmark]: Witness Printer took 3.96 ms. Allocated memory is still 1.2 GB. Free memory is still 915.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:39,732 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 591.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.08 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 24.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 294.08 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3815.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 915.4 MB in the end (delta: 162.9 MB). Peak memory consumption was 162.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.96 ms. Allocated memory is still 1.2 GB. Free memory is still 915.4 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 * s2 + unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 15 SDtfs, 15 SDslu, 20 SDs, 0 SdLazy, 14 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital229 mio100 ax100 hnf100 lsp97 ukn88 mio100 lsp45 div154 bol100 ite100 ukn100 eq148 hnf74 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 64ms VariablesStem: 9 VariablesLoop: 8 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...