./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrnlen-alloca_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrnlen-alloca_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/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 20d74f4d70a20b55179c45eafbef37cbb7fed804 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:34:14,721 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:34:14,722 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:34:14,727 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:34:14,728 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:34:14,728 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:34:14,729 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:34:14,730 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:34:14,731 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:34:14,732 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:34:14,732 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:34:14,733 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:34:14,733 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:34:14,734 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:34:14,734 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:34:14,735 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:34:14,735 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:34:14,736 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:34:14,737 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:34:14,738 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:34:14,738 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:34:14,739 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:34:14,740 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:34:14,740 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:34:14,740 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:34:14,741 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:34:14,741 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:34:14,742 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:34:14,742 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:34:14,743 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:34:14,743 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:34:14,743 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:34:14,743 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:34:14,743 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:34:14,744 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:34:14,744 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:34:14,744 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 12:34:14,752 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:34:14,752 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:34:14,752 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:34:14,753 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:34:14,753 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:34:14,753 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 12:34:14,753 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 12:34:14,753 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 12:34:14,753 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 12:34:14,753 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 12:34:14,754 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 12:34:14,754 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:34:14,754 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 12:34:14,754 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:34:14,754 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:34:14,754 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 12:34:14,754 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 12:34:14,755 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 12:34:14,755 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:34:14,755 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 12:34:14,755 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:34:14,755 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 12:34:14,755 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:34:14,755 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:34:14,755 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 12:34:14,756 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:34:14,756 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:34:14,756 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 12:34:14,756 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 12:34:14,756 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/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 -> 20d74f4d70a20b55179c45eafbef37cbb7fed804 [2018-11-18 12:34:14,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:34:14,788 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:34:14,790 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:34:14,792 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:34:14,792 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:34:14,792 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrnlen-alloca_true-termination.c.i [2018-11-18 12:34:14,836 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/uautomizer/data/a8ea3fd29/6f91e4b1204f47148ef6457adb11f971/FLAGdd0f4f6d8 [2018-11-18 12:34:15,159 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:34:15,159 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrnlen-alloca_true-termination.c.i [2018-11-18 12:34:15,165 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/uautomizer/data/a8ea3fd29/6f91e4b1204f47148ef6457adb11f971/FLAGdd0f4f6d8 [2018-11-18 12:34:15,175 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/uautomizer/data/a8ea3fd29/6f91e4b1204f47148ef6457adb11f971 [2018-11-18 12:34:15,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:34:15,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:34:15,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:34:15,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:34:15,182 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:34:15,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:34:15" (1/1) ... [2018-11-18 12:34:15,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bb2b19c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15, skipping insertion in model container [2018-11-18 12:34:15,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:34:15" (1/1) ... [2018-11-18 12:34:15,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:34:15,215 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:34:15,399 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:34:15,406 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:34:15,472 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:34:15,494 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:34:15,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15 WrapperNode [2018-11-18 12:34:15,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:34:15,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:34:15,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:34:15,495 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:34:15,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15" (1/1) ... [2018-11-18 12:34:15,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15" (1/1) ... [2018-11-18 12:34:15,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:34:15,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:34:15,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:34:15,523 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:34:15,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15" (1/1) ... [2018-11-18 12:34:15,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15" (1/1) ... [2018-11-18 12:34:15,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15" (1/1) ... [2018-11-18 12:34:15,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15" (1/1) ... [2018-11-18 12:34:15,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15" (1/1) ... [2018-11-18 12:34:15,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15" (1/1) ... [2018-11-18 12:34:15,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15" (1/1) ... [2018-11-18 12:34:15,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:34:15,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:34:15,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:34:15,538 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:34:15,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0dec3bd4-8d10-45c2-932f-d6d6ee3d0bc2/bin-2019/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 [2018-11-18 12:34:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:34:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:34:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:34:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:34:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:34:15,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:34:15,740 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:34:15,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:34:15 BoogieIcfgContainer [2018-11-18 12:34:15,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:34:15,741 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 12:34:15,741 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 12:34:15,744 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 12:34:15,745 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:34:15,745 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 12:34:15" (1/3) ... [2018-11-18 12:34:15,746 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46276b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:34:15, skipping insertion in model container [2018-11-18 12:34:15,746 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:34:15,746 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:34:15" (2/3) ... [2018-11-18 12:34:15,747 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46276b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:34:15, skipping insertion in model container [2018-11-18 12:34:15,747 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:34:15,747 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:34:15" (3/3) ... [2018-11-18 12:34:15,748 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrnlen-alloca_true-termination.c.i [2018-11-18 12:34:15,787 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:34:15,787 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 12:34:15,787 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 12:34:15,788 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 12:34:15,788 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:34:15,788 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:34:15,788 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 12:34:15,788 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:34:15,788 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 12:34:15,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-18 12:34:15,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 12:34:15,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:34:15,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:34:15,823 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-18 12:34:15,823 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 12:34:15,823 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 12:34:15,824 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-18 12:34:15,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 12:34:15,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:34:15,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:34:15,825 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-18 12:34:15,825 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 12:34:15,832 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9, main_~length1~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 4#L558true assume !(main_~length1~0 < 1); 6#L558-2true assume !(main_~n~0 < 1); 15#L561-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);assume { :begin_inline_cstrnlen } true;cstrnlen_#in~str.base, cstrnlen_#in~str.offset, cstrnlen_#in~maxlen := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~n~0;havoc cstrnlen_#res;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset, cstrnlen_#t~post3, cstrnlen_#t~mem4, cstrnlen_#t~short5, cstrnlen_~str.base, cstrnlen_~str.offset, cstrnlen_~maxlen, cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~str.base, cstrnlen_~str.offset := cstrnlen_#in~str.base, cstrnlen_#in~str.offset;cstrnlen_~maxlen := cstrnlen_#in~maxlen;havoc cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_~str.base, cstrnlen_~str.offset; 7#L551-6true [2018-11-18 12:34:15,832 INFO L796 eck$LassoCheckResult]: Loop: 7#L551-6true assume true;cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 14#L551-1true assume cstrnlen_#t~short5;call cstrnlen_#t~mem4 := read~int(cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset, 1);cstrnlen_#t~short5 := 0 != cstrnlen_#t~mem4; 3#L551-3true assume !!cstrnlen_#t~short5;havoc cstrnlen_#t~mem4;havoc cstrnlen_#t~short5; 5#L551-5true cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset := cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_#t~post2.base, 1 + cstrnlen_#t~post2.offset;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset;cstrnlen_#t~post3 := cstrnlen_~maxlen;cstrnlen_~maxlen := cstrnlen_#t~post3 - 1;havoc cstrnlen_#t~post3; 7#L551-6true [2018-11-18 12:34:15,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:34:15,836 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2018-11-18 12:34:15,838 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:34:15,838 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:34:15,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:34:15,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:34:15,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:34:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:34:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:34:15,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:34:15,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1511654, now seen corresponding path program 1 times [2018-11-18 12:34:15,936 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:34:15,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:34:15,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:34:15,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:34:15,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:34:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:34:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:34:15,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:34:15,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1298318251, now seen corresponding path program 1 times [2018-11-18 12:34:15,954 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:34:15,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:34:15,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:34:15,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:34:15,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:34:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:34:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:34:16,092 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2018-11-18 12:34:16,224 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-11-18 12:34:16,274 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:34:16,275 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:34:16,275 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:34:16,275 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:34:16,275 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 12:34:16,276 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:34:16,276 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:34:16,276 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:34:16,276 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrnlen-alloca_true-termination.c.i_Iteration1_Lasso [2018-11-18 12:34:16,276 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:34:16,276 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:34:16,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:34:16,707 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:34:16,711 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 12:34:16,713 INFO L122 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 [2018-11-18 12:34:16,714 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,714 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:34:16,715 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,715 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,715 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,717 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:34:16,717 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:34:16,719 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,719 INFO L122 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 [2018-11-18 12:34:16,720 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,720 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:34:16,720 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,720 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,720 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,721 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:34:16,721 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:34:16,722 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,722 INFO L122 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 [2018-11-18 12:34:16,723 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,723 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:34:16,723 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,723 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,723 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,723 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:34:16,724 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:34:16,725 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,725 INFO L122 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 [2018-11-18 12:34:16,725 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,726 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:34:16,726 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,726 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,726 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,726 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:34:16,727 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:34:16,727 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,728 INFO L122 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 [2018-11-18 12:34:16,728 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,728 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,729 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,729 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,731 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:34:16,731 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:34:16,734 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,734 INFO L122 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 [2018-11-18 12:34:16,735 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,735 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,735 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,735 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,736 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:34:16,737 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:34:16,741 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,741 INFO L122 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 [2018-11-18 12:34:16,742 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,742 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:34:16,742 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,742 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,743 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,743 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:34:16,743 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:34:16,744 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,744 INFO L122 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 [2018-11-18 12:34:16,745 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,745 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:34:16,745 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,745 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,745 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,746 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:34:16,746 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:34:16,747 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,747 INFO L122 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 [2018-11-18 12:34:16,748 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,748 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,748 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,748 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,749 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:34:16,750 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:34:16,753 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,753 INFO L122 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 [2018-11-18 12:34:16,754 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,754 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:34:16,754 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,754 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,754 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,755 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:34:16,755 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:34:16,756 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,756 INFO L122 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 [2018-11-18 12:34:16,757 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,757 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,757 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,757 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,758 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:34:16,759 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:34:16,761 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,761 INFO L122 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 [2018-11-18 12:34:16,761 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,762 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:34:16,762 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,762 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,762 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,762 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:34:16,762 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:34:16,763 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,763 INFO L122 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 [2018-11-18 12:34:16,764 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,764 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,764 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,764 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,766 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:34:16,766 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:34:16,785 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,786 INFO L122 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 [2018-11-18 12:34:16,786 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,786 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,787 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,787 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,788 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:34:16,788 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:34:16,791 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,792 INFO L122 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 [2018-11-18 12:34:16,792 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,792 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:34:16,792 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,793 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,793 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,793 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:34:16,793 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:34:16,794 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:34:16,794 INFO L122 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 [2018-11-18 12:34:16,795 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:34:16,795 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:34:16,795 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:34:16,795 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:34:16,798 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:34:16,798 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:34:16,833 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 12:34:16,861 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-11-18 12:34:16,861 INFO L444 ModelExtractionUtils]: 20 out of 28 variables were initially zero. Simplification set additionally 5 variables to zero. [2018-11-18 12:34:16,863 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 12:34:16,865 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-18 12:34:16,865 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 12:34:16,866 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrnlen_~cp~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1) = -1*ULTIMATE.start_cstrnlen_~cp~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 Supporting invariants [] [2018-11-18 12:34:16,898 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2018-11-18 12:34:16,903 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 12:34:16,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:34:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:34:16,936 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:34:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:34:16,946 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:34:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:34:16,983 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 12:34:16,984 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2018-11-18 12:34:17,029 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 4 states. Result 36 states and 45 transitions. Complement of second has 8 states. [2018-11-18 12:34:17,030 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 [2018-11-18 12:34:17,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 12:34:17,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2018-11-18 12:34:17,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-18 12:34:17,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:34:17,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-18 12:34:17,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:34:17,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 5 letters. Loop has 8 letters. [2018-11-18 12:34:17,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:34:17,034 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 45 transitions. [2018-11-18 12:34:17,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 12:34:17,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 18 states and 23 transitions. [2018-11-18 12:34:17,040 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-18 12:34:17,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-18 12:34:17,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-18 12:34:17,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:34:17,041 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-18 12:34:17,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-18 12:34:17,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-11-18 12:34:17,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 12:34:17,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2018-11-18 12:34:17,062 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-18 12:34:17,062 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-18 12:34:17,062 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 12:34:17,062 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2018-11-18 12:34:17,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 12:34:17,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:34:17,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:34:17,064 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-18 12:34:17,064 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 12:34:17,064 INFO L794 eck$LassoCheckResult]: Stem: 133#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 130#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9, main_~length1~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 131#L558 assume !(main_~length1~0 < 1); 132#L558-2 assume !(main_~n~0 < 1); 136#L561-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);assume { :begin_inline_cstrnlen } true;cstrnlen_#in~str.base, cstrnlen_#in~str.offset, cstrnlen_#in~maxlen := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~n~0;havoc cstrnlen_#res;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset, cstrnlen_#t~post3, cstrnlen_#t~mem4, cstrnlen_#t~short5, cstrnlen_~str.base, cstrnlen_~str.offset, cstrnlen_~maxlen, cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~str.base, cstrnlen_~str.offset := cstrnlen_#in~str.base, cstrnlen_#in~str.offset;cstrnlen_~maxlen := cstrnlen_#in~maxlen;havoc cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_~str.base, cstrnlen_~str.offset; 141#L551-6 assume true;cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 137#L551-1 [2018-11-18 12:34:17,064 INFO L796 eck$LassoCheckResult]: Loop: 137#L551-1 assume !cstrnlen_#t~short5; 126#L551-3 assume !!cstrnlen_#t~short5;havoc cstrnlen_#t~mem4;havoc cstrnlen_#t~short5; 127#L551-5 cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset := cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_#t~post2.base, 1 + cstrnlen_#t~post2.offset;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset;cstrnlen_#t~post3 := cstrnlen_~maxlen;cstrnlen_~maxlen := cstrnlen_#t~post3 - 1;havoc cstrnlen_#t~post3; 134#L551-6 assume true;cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 137#L551-1 [2018-11-18 12:34:17,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:34:17,064 INFO L82 PathProgramCache]: Analyzing trace with hash 889572237, now seen corresponding path program 1 times [2018-11-18 12:34:17,064 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:34:17,065 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:34:17,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:34:17,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:34:17,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:34:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:34:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:34:17,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:34:17,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1668346, now seen corresponding path program 1 times [2018-11-18 12:34:17,081 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:34:17,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:34:17,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:34:17,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:34:17,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:34:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:34:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:34:17,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:34:17,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:34:17,106 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:34:17,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:34:17,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:34:17,109 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-18 12:34:17,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:34:17,117 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2018-11-18 12:34:17,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:34:17,118 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2018-11-18 12:34:17,118 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 12:34:17,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2018-11-18 12:34:17,118 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 12:34:17,118 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 12:34:17,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 12:34:17,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:34:17,119 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:34:17,119 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:34:17,119 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:34:17,119 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 12:34:17,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:34:17,119 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 12:34:17,119 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 12:34:17,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 12:34:17 BoogieIcfgContainer [2018-11-18 12:34:17,124 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 12:34:17,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:34:17,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:34:17,124 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:34:17,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:34:15" (3/4) ... [2018-11-18 12:34:17,129 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:34:17,129 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:34:17,129 INFO L168 Benchmark]: Toolchain (without parser) took 1951.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 956.6 MB in the beginning and 888.9 MB in the end (delta: 67.7 MB). Peak memory consumption was 210.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:34:17,130 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:34:17,131 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -175.4 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:34:17,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.65 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:34:17,132 INFO L168 Benchmark]: Boogie Preprocessor took 14.29 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. [2018-11-18 12:34:17,132 INFO L168 Benchmark]: RCFGBuilder took 203.08 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:34:17,133 INFO L168 Benchmark]: BuchiAutomizer took 1382.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.9 MB in the end (delta: 223.4 MB). Peak memory consumption was 223.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:34:17,133 INFO L168 Benchmark]: Witness Printer took 4.59 ms. Allocated memory is still 1.2 GB. Free memory is still 888.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:34:17,136 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 315.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -175.4 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.65 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.29 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 203.08 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1382.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.9 MB in the end (delta: 223.4 MB). Peak memory consumption was 223.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.59 ms. Allocated memory is still 1.2 GB. Free memory is still 888.9 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * cp + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 23 SDtfs, 18 SDslu, 15 SDs, 0 SdLazy, 15 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital133 mio100 ax113 hnf99 lsp70 ukn91 mio100 lsp48 div129 bol100 ite100 ukn100 eq155 hnf83 smp100 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...