./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-libowfat/strrchr.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_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/strrchr.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/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 900f92af74c0348435977f69b7ec984c63076a1b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:58:02,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:58:02,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:58:02,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:58:02,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:58:02,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:58:02,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:58:02,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:58:02,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:58:02,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:58:02,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:58:02,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:58:02,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:58:02,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:58:02,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:58:02,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:58:02,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:58:02,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:58:02,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:58:02,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:58:02,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:58:02,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:58:02,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:58:02,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:58:02,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:58:02,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:58:02,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:58:02,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:58:02,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:58:02,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:58:02,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:58:02,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:58:02,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:58:02,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:58:02,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:58:02,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:58:02,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:58:02,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:58:02,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:58:02,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:58:02,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:58:02,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:58:02,465 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:58:02,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:58:02,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:58:02,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:58:02,466 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:58:02,467 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:58:02,467 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:58:02,467 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:58:02,467 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:58:02,468 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:58:02,468 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:58:02,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:58:02,468 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:58:02,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:58:02,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:58:02,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:58:02,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:58:02,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:58:02,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:58:02,470 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:58:02,470 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:58:02,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:58:02,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:58:02,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:58:02,471 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:58:02,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:58:02,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:58:02,471 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:58:02,472 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:58:02,472 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_7fe87699-c3f1-49df-baf8-35462c845d07/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 -> 900f92af74c0348435977f69b7ec984c63076a1b [2019-11-25 08:58:02,614 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:58:02,625 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:58:02,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:58:02,630 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:58:02,630 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:58:02,631 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/../../sv-benchmarks/c/termination-libowfat/strrchr.i [2019-11-25 08:58:02,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/data/08b4b3889/92d2ec9714bc454b8b501d0167c12689/FLAG8bbfc6ac7 [2019-11-25 08:58:03,145 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:58:03,145 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/sv-benchmarks/c/termination-libowfat/strrchr.i [2019-11-25 08:58:03,163 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/data/08b4b3889/92d2ec9714bc454b8b501d0167c12689/FLAG8bbfc6ac7 [2019-11-25 08:58:03,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/data/08b4b3889/92d2ec9714bc454b8b501d0167c12689 [2019-11-25 08:58:03,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:58:03,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:58:03,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:03,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:58:03,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:58:03,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dcfa657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03, skipping insertion in model container [2019-11-25 08:58:03,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:58:03,240 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:58:03,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:03,662 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:58:03,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:03,759 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:58:03,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03 WrapperNode [2019-11-25 08:58:03,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:03,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:03,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:58:03,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:58:03,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:03,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:58:03,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:58:03,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:58:03,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... [2019-11-25 08:58:03,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:58:03,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:58:03,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:58:03,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:58:03,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/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 08:58:03,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:58:03,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:58:03,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:58:03,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:58:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:58:03,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:58:04,175 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:58:04,176 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-25 08:58:04,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:04 BoogieIcfgContainer [2019-11-25 08:58:04,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:58:04,178 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:58:04,178 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:58:04,181 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:58:04,182 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:58:04,182 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:58:03" (1/3) ... [2019-11-25 08:58:04,183 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61a31768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:58:04, skipping insertion in model container [2019-11-25 08:58:04,183 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:58:04,183 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:03" (2/3) ... [2019-11-25 08:58:04,184 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61a31768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:58:04, skipping insertion in model container [2019-11-25 08:58:04,184 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:58:04,184 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:04" (3/3) ... [2019-11-25 08:58:04,185 INFO L371 chiAutomizerObserver]: Analyzing ICFG strrchr.i [2019-11-25 08:58:04,225 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:58:04,226 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:58:04,226 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:58:04,226 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:58:04,226 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:58:04,226 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:58:04,226 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:58:04,227 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:58:04,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-11-25 08:58:04,260 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2019-11-25 08:58:04,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:04,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:04,264 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:58:04,265 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:58:04,265 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:58:04,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-11-25 08:58:04,266 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2019-11-25 08:58:04,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:04,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:04,267 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:58:04,267 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:58:04,273 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~nondet16, main_#t~ret17.base, main_#t~ret17.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~the_int~0;main_~in_len~0 := main_#t~nondet14;havoc main_#t~nondet14; 16#L520true assume !(main_~in_len~0 < 1);call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~the_int~0 := main_#t~nondet16;havoc main_#t~nondet16;strrchr_#in~t.base, strrchr_#in~t.offset, strrchr_#in~c := main_~in~0.base, main_~in~0.offset, main_~the_int~0;havoc strrchr_#res.base, strrchr_#res.offset;havoc strrchr_#t~mem2, strrchr_#t~mem3, strrchr_#t~pre4.base, strrchr_#t~pre4.offset, strrchr_#t~mem5, strrchr_#t~mem6, strrchr_#t~pre7.base, strrchr_#t~pre7.offset, strrchr_#t~mem8, strrchr_#t~mem9, strrchr_#t~pre10.base, strrchr_#t~pre10.offset, strrchr_#t~mem11, strrchr_#t~mem12, strrchr_#t~pre13.base, strrchr_#t~pre13.offset, strrchr_~t.base, strrchr_~t.offset, strrchr_~c, strrchr_~ch~0, strrchr_~l~0.base, strrchr_~l~0.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_#in~t.base, strrchr_#in~t.offset;strrchr_~c := strrchr_#in~c;havoc strrchr_~ch~0;strrchr_~l~0.base, strrchr_~l~0.offset := 0, 0;strrchr_~ch~0 := (if strrchr_~c % 256 <= 127 then strrchr_~c % 256 else strrchr_~c % 256 - 256); 19#L510-2true [2019-11-25 08:58:04,273 INFO L796 eck$LassoCheckResult]: Loop: 19#L510-2true assume !false;call strrchr_#t~mem2 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 9#L511true assume strrchr_#t~mem2 == strrchr_~ch~0;havoc strrchr_#t~mem2;strrchr_~l~0.base, strrchr_~l~0.offset := strrchr_~t.base, strrchr_~t.offset; 17#L511-2true call strrchr_#t~mem3 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 21#L511-3true assume !(0 == strrchr_#t~mem3);havoc strrchr_#t~mem3;strrchr_#t~pre4.base, strrchr_#t~pre4.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre4.base, strrchr_#t~pre4.offset;call strrchr_#t~mem5 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 7#L512true assume !(strrchr_#t~mem5 == strrchr_~ch~0);havoc strrchr_#t~mem5; 13#L512-2true call strrchr_#t~mem6 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 18#L512-3true assume !(0 == strrchr_#t~mem6);havoc strrchr_#t~mem6;strrchr_#t~pre7.base, strrchr_#t~pre7.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre7.base, strrchr_#t~pre7.offset;call strrchr_#t~mem8 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 6#L513true assume strrchr_#t~mem8 == strrchr_~ch~0;havoc strrchr_#t~mem8;strrchr_~l~0.base, strrchr_~l~0.offset := strrchr_~t.base, strrchr_~t.offset; 10#L513-2true call strrchr_#t~mem9 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 14#L513-3true assume !(0 == strrchr_#t~mem9);havoc strrchr_#t~mem9;strrchr_#t~pre10.base, strrchr_#t~pre10.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre10.base, strrchr_#t~pre10.offset;call strrchr_#t~mem11 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 4#L514true assume strrchr_#t~mem11 == strrchr_~ch~0;havoc strrchr_#t~mem11;strrchr_~l~0.base, strrchr_~l~0.offset := strrchr_~t.base, strrchr_~t.offset; 8#L514-2true call strrchr_#t~mem12 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 11#L514-3true assume !(0 == strrchr_#t~mem12);havoc strrchr_#t~mem12;strrchr_#t~pre13.base, strrchr_#t~pre13.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre13.base, strrchr_#t~pre13.offset; 19#L510-2true [2019-11-25 08:58:04,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:04,278 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2019-11-25 08:58:04,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:04,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638931206] [2019-11-25 08:58:04,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:04,422 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:04,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:04,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1555843192, now seen corresponding path program 1 times [2019-11-25 08:58:04,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:04,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270120732] [2019-11-25 08:58:04,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:04,477 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:04,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:04,479 INFO L82 PathProgramCache]: Analyzing trace with hash -220781627, now seen corresponding path program 1 times [2019-11-25 08:58:04,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:04,480 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608711617] [2019-11-25 08:58:04,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:04,597 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:04,958 WARN L192 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2019-11-25 08:58:05,237 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-11-25 08:58:05,476 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-11-25 08:58:05,489 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:58:05,490 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:58:05,491 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:58:05,491 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:58:05,491 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:58:05,491 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:05,491 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:58:05,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:58:05,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: strrchr.i_Iteration1_Lasso [2019-11-25 08:58:05,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:58:05,492 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:58:05,540 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 08:58:05,547 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 08:58:05,553 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 08:58:05,556 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 08:58:05,559 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 08:58:05,564 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 08:58:06,066 WARN L192 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-11-25 08:58:06,195 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-11-25 08:58:06,196 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 08:58:06,202 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 08:58:06,208 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 08:58:06,213 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 08:58:06,216 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 08:58:06,218 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 08:58:06,220 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 08:58:06,222 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 08:58:06,231 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 08:58:06,233 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 08:58:06,235 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 08:58:06,238 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 08:58:06,241 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 08:58:06,244 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 08:58:06,247 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 08:58:06,249 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 08:58:06,252 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 08:58:06,255 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 08:58:06,259 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 08:58:06,261 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 08:58:06,793 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2019-11-25 08:58:06,978 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2019-11-25 08:58:07,089 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:58:07,094 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/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) [2019-11-25 08:58:07,100 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 08:58:07,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:07,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:07,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:07,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:07,108 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:07,108 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:07,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:07,138 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 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:07,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:07,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:07,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:07,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:07,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:07,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:07,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:07,143 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:07,158 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 08:58:07,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:07,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:07,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:07,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:07,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:07,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:07,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:07,164 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:07,176 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 08:58:07,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:07,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:07,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:07,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:07,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:07,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:07,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:07,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/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 08:58:07,194 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 08:58:07,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:07,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:07,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:07,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:07,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:07,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:07,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:07,199 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/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 08:58:07,213 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 08:58:07,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:07,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:07,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:07,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:07,221 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:07,221 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 08:58:07,227 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/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 08:58:07,242 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 08:58:07,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:07,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:07,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:07,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:07,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:07,255 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 08:58:07,268 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:07,279 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 08:58:07,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:07,281 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-25 08:58:07,282 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2019-11-25 08:58:07,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:07,400 INFO L401 nArgumentSynthesizer]: We have 108 Motzkin's Theorem applications. [2019-11-25 08:58:07,400 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2019-11-25 08:58:07,591 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/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 08:58:07,598 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 08:58:07,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:07,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:07,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:07,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:07,609 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:07,609 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:58:07,626 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:58:07,785 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-11-25 08:58:07,785 INFO L444 ModelExtractionUtils]: 18 out of 28 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fe87699-c3f1-49df-baf8-35462c845d07/bin/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:07,800 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:58:07,804 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:58:07,804 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:58:07,805 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc15.base)_1, ULTIMATE.start_strrchr_~t.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc15.base)_1 - 1*ULTIMATE.start_strrchr_~t.offset Supporting invariants [] [2019-11-25 08:58:07,847 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2019-11-25 08:58:07,856 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-25 08:58:07,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:07,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:58:07,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:07,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-25 08:58:07,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:08,005 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 08:58:08,020 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2019-11-25 08:58:08,022 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 6 states. [2019-11-25 08:58:08,182 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 6 states. Result 42 states and 62 transitions. Complement of second has 8 states. [2019-11-25 08:58:08,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:58:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-25 08:58:08,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2019-11-25 08:58:08,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 3 letters. Loop has 13 letters. [2019-11-25 08:58:08,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:08,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 16 letters. Loop has 13 letters. [2019-11-25 08:58:08,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:08,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 3 letters. Loop has 26 letters. [2019-11-25 08:58:08,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:08,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 62 transitions. [2019-11-25 08:58:08,196 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:58:08,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 0 states and 0 transitions. [2019-11-25 08:58:08,200 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:58:08,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:58:08,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:58:08,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:58:08,205 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:08,205 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:08,205 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:08,205 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:58:08,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:58:08,206 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:58:08,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:58:08,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:58:08 BoogieIcfgContainer [2019-11-25 08:58:08,212 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:58:08,213 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:58:08,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:58:08,214 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:58:08,214 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:04" (3/4) ... [2019-11-25 08:58:08,218 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:58:08,218 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:58:08,220 INFO L168 Benchmark]: Toolchain (without parser) took 5038.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.2 MB). Free memory was 944.7 MB in the beginning and 931.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 232.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:08,221 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:08,222 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:08,222 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.16 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 08:58:08,223 INFO L168 Benchmark]: Boogie Preprocessor took 29.01 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 08:58:08,223 INFO L168 Benchmark]: RCFGBuilder took 334.61 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:08,228 INFO L168 Benchmark]: BuchiAutomizer took 4034.73 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 1.1 GB in the beginning and 931.4 MB in the end (delta: 170.7 MB). Peak memory consumption was 236.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:08,229 INFO L168 Benchmark]: Witness Printer took 4.64 ms. Allocated memory is still 1.2 GB. Free memory is still 931.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:08,233 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 578.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.16 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 29.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 334.61 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4034.73 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 1.1 GB in the beginning and 931.4 MB in the end (delta: 170.7 MB). Peak memory consumption was 236.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.64 ms. Allocated memory is still 1.2 GB. Free memory is still 931.4 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 unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * t and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. 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: 14 SDtfs, 22 SDslu, 24 SDs, 0 SdLazy, 48 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital287 mio100 ax100 hnf99 lsp75 ukn99 mio100 lsp35 div129 bol100 ite100 ukn100 eq167 hnf76 smp79 dnf417 smp57 tf100 neg95 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 321ms VariablesStem: 6 VariablesLoop: 5 DisjunctsStem: 2 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 108 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...