./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcat_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcat_malloc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/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 8f2b899caa4822254a00d27fcecb2b75790fc0d9 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:54:59,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:59,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:59,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:59,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:59,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:59,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:59,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:59,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:59,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:59,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:59,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:59,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:59,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:59,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:59,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:59,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:59,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:59,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:59,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:59,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:59,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:59,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:59,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:59,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:59,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:59,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:59,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:59,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:59,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:59,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:59,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:59,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:59,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:59,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:59,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:59,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:59,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:59,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:59,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:59,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:59,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:54:59,700 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:59,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:59,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:59,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:59,702 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:59,702 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:54:59,702 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:54:59,702 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:54:59,703 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:54:59,703 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:54:59,703 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:54:59,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:59,703 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:54:59,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:59,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:59,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:54:59,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:54:59,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:54:59,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:59,704 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:54:59,704 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:59,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:54:59,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:59,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:59,705 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:54:59,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:59,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:59,705 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:54:59,706 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:54:59,706 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/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 -> 8f2b899caa4822254a00d27fcecb2b75790fc0d9 [2019-10-22 08:54:59,730 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:59,740 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:59,743 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:59,745 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:59,745 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:59,746 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrcat_malloc.i [2019-10-22 08:54:59,804 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/bin/uautomizer/data/1261699e1/7e795b61b2924087ae7a88001aa0d3a0/FLAG23414dd6c [2019-10-22 08:55:00,250 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:00,251 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/sv-benchmarks/c/termination-15/cstrcat_malloc.i [2019-10-22 08:55:00,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/bin/uautomizer/data/1261699e1/7e795b61b2924087ae7a88001aa0d3a0/FLAG23414dd6c [2019-10-22 08:55:00,770 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/bin/uautomizer/data/1261699e1/7e795b61b2924087ae7a88001aa0d3a0 [2019-10-22 08:55:00,774 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:00,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:00,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:00,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:00,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:00,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:00" (1/1) ... [2019-10-22 08:55:00,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e95cc8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:00, skipping insertion in model container [2019-10-22 08:55:00,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:00" (1/1) ... [2019-10-22 08:55:00,791 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:00,819 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:01,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:01,170 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:01,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:01,274 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:01,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01 WrapperNode [2019-10-22 08:55:01,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:01,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:01,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:01,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:01,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01" (1/1) ... [2019-10-22 08:55:01,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01" (1/1) ... [2019-10-22 08:55:01,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:01,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:01,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:01,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:01,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01" (1/1) ... [2019-10-22 08:55:01,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01" (1/1) ... [2019-10-22 08:55:01,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01" (1/1) ... [2019-10-22 08:55:01,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01" (1/1) ... [2019-10-22 08:55:01,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01" (1/1) ... [2019-10-22 08:55:01,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01" (1/1) ... [2019-10-22 08:55:01,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01" (1/1) ... [2019-10-22 08:55:01,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:01,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:01,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:01,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:01,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67bd1a02-9501-4b0b-b8f2-a4b5aab392de/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:55:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:55:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:55:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:55:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:55:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:01,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:01,749 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:01,749 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 08:55:01,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:01 BoogieIcfgContainer [2019-10-22 08:55:01,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:01,751 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:55:01,751 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:55:01,755 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:55:01,756 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:01,756 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:55:00" (1/3) ... [2019-10-22 08:55:01,757 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e97e7e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:01, skipping insertion in model container [2019-10-22 08:55:01,757 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:01,758 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01" (2/3) ... [2019-10-22 08:55:01,758 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e97e7e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:01, skipping insertion in model container [2019-10-22 08:55:01,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:01,758 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:01" (3/3) ... [2019-10-22 08:55:01,760 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcat_malloc.i [2019-10-22 08:55:01,802 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:55:01,803 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:55:01,803 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:55:01,803 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:01,803 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:01,803 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:55:01,803 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:01,803 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:55:01,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-10-22 08:55:01,836 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-10-22 08:55:01,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:01,836 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:01,843 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:01,843 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:55:01,843 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:55:01,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-10-22 08:55:01,844 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-10-22 08:55:01,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:01,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:01,845 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:01,845 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:55:01,852 INFO L791 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 9#L-1true havoc main_#res;havoc main_#t~nondet210, main_#t~nondet211, main_#t~nondet212, main_#t~malloc213.base, main_#t~malloc213.offset, main_#t~malloc214.base, main_#t~malloc214.offset, main_#t~ret215.base, main_#t~ret215.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet210;havoc main_#t~nondet210;main_~length2~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~length3~0 := main_#t~nondet212;havoc main_#t~nondet212; 3#L377true assume !(main_~length1~0 < 1); 6#L377-2true assume !(main_~length2~0 < 2); 15#L380-1true assume !(main_~length3~0 < 1); 10#L383-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset, cstrcat_#t~mem205, cstrcat_#t~post207.base, cstrcat_#t~post207.offset, cstrcat_#t~post208.base, cstrcat_#t~post208.offset, cstrcat_#t~mem209, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 7#L367-3true [2019-10-22 08:55:01,853 INFO L793 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrcat_#t~mem205 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 4#L367-1true assume !!(0 != cstrcat_#t~mem205);havoc cstrcat_#t~mem205;cstrcat_#t~post206.base, cstrcat_#t~post206.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post206.base, 1 + cstrcat_#t~post206.offset;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset; 7#L367-3true [2019-10-22 08:55:01,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:01,858 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2019-10-22 08:55:01,866 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:01,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135006220] [2019-10-22 08:55:01,866 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:01,867 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:01,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:02,010 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:02,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:02,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2019-10-22 08:55:02,012 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:02,012 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340675978] [2019-10-22 08:55:02,012 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:02,012 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:02,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:02,022 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:02,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:02,024 INFO L82 PathProgramCache]: Analyzing trace with hash 180553748, now seen corresponding path program 1 times [2019-10-22 08:55:02,024 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:02,024 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203349163] [2019-10-22 08:55:02,024 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:02,025 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:02,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:02,066 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:02,592 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 93 [2019-10-22 08:55:02,708 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-10-22 08:55:02,718 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:55:02,718 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:55:02,718 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:55:02,719 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:55:02,719 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:55:02,719 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:55:02,719 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:55:02,719 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:55:02,719 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrcat_malloc.i_Iteration1_Lasso [2019-10-22 08:55:02,720 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:55:02,720 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:55:02,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:02,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:02,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:02,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:02,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:02,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,087 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-10-22 08:55:03,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:55:03,909 WARN L191 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-10-22 08:55:03,943 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:55:03,953 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:55:03,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:55:03,959 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:55:03,959 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:55:03,960 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:55:03,961 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:55:03,961 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:55:03,963 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:55:03,963 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:55:03,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:55:03,969 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:55:03,972 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:55:03,974 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:55:03,974 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:55:03,974 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:55:03,976 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:55:03,976 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:55:03,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:55:03,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:55:03,994 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:55:03,995 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:55:03,995 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:55:03,995 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:55:03,995 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:55:03,996 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:55:03,996 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:55:03,996 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:55:03,997 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:55:03,997 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:55:03,997 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:55:03,998 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:55:03,998 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:55:03,998 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:55:03,998 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:55:03,999 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:55:03,999 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:55:03,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:55:04,000 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:55:04,000 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:55:04,000 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:55:04,000 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:55:04,001 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:55:04,001 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:55:04,004 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:55:04,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:55:04,005 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:55:04,005 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:55:04,005 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:55:04,005 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:55:04,007 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:55:04,008 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:55:04,012 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:55:04,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:55:04,013 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:55:04,013 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:55:04,014 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:55:04,014 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:55:04,016 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:55:04,016 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:55:04,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:55:04,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:55:04,020 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:55:04,020 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:55:04,020 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:55:04,020 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:55:04,023 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:55:04,023 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:55:04,037 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:55:04,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:55:04,039 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:55:04,039 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:55:04,039 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:55:04,039 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:55:04,048 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:55:04,048 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:55:04,161 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:55:04,226 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-10-22 08:55:04,231 INFO L444 ModelExtractionUtils]: 42 out of 49 variables were initially zero. Simplification set additionally 4 variables to zero. [2019-10-22 08:55:04,233 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:55:04,235 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 08:55:04,236 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:55:04,237 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcat_~s~0.base)_1, ULTIMATE.start_cstrcat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcat_~s~0.base)_1 - 1*ULTIMATE.start_cstrcat_~s~0.offset Supporting invariants [] [2019-10-22 08:55:04,262 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2019-10-22 08:55:04,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-22 08:55:04,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:04,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:55:04,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:55:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:04,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 08:55:04,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:55:04,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:04,356 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-10-22 08:55:04,358 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-10-22 08:55:04,407 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 35 states and 45 transitions. Complement of second has 7 states. [2019-10-22 08:55:04,409 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 [2019-10-22 08:55:04,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:55:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2019-10-22 08:55:04,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 2 letters. [2019-10-22 08:55:04,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:55:04,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 8 letters. Loop has 2 letters. [2019-10-22 08:55:04,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:55:04,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 4 letters. [2019-10-22 08:55:04,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:55:04,416 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2019-10-22 08:55:04,419 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:55:04,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2019-10-22 08:55:04,423 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:55:04,423 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:55:04,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:55:04,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:55:04,424 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:55:04,424 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:55:04,424 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:55:04,424 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:55:04,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:55:04,425 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:55:04,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:55:04,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:55:04 BoogieIcfgContainer [2019-10-22 08:55:04,431 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:55:04,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:04,431 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:04,431 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:04,432 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:01" (3/4) ... [2019-10-22 08:55:04,435 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:55:04,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:04,437 INFO L168 Benchmark]: Toolchain (without parser) took 3661.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 217.6 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:04,438 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:04,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -192.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:04,440 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.11 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:04,441 INFO L168 Benchmark]: Boogie Preprocessor took 42.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:04,441 INFO L168 Benchmark]: RCFGBuilder took 381.26 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: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:04,442 INFO L168 Benchmark]: BuchiAutomizer took 2679.96 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -25.1 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:04,442 INFO L168 Benchmark]: Witness Printer took 4.28 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. [2019-10-22 08:55:04,445 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 498.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -192.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.11 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 381.26 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: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2679.96 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -25.1 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 18 SDslu, 13 SDs, 0 SdLazy, 4 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital192 mio100 ax100 hnf98 lsp96 ukn78 mio100 lsp48 div100 bol100 ite100 ukn100 eq188 hnf88 smp100 dnf211 smp97 tf100 neg96 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms 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...