./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/subseq-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/subseq-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/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 32bit --witnessprinter.graph.data.programhash 20f541ceeb4d88c1ded29d751212bcde5b7dc0f0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:21:55,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:21:55,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:21:55,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:21:55,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:21:55,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:21:55,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:21:55,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:21:55,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:21:55,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:21:55,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:21:55,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:21:55,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:21:55,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:21:55,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:21:55,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:21:55,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:21:55,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:21:55,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:21:55,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:21:55,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:21:55,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:21:55,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:21:55,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:21:55,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:21:55,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:21:55,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:21:55,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:21:55,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:21:55,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:21:55,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:21:55,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:21:55,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:21:55,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:21:55,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:21:55,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:21:55,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:21:55,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:21:55,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:21:55,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:21:55,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:21:55,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:21:55,431 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:21:55,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:21:55,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:21:55,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:21:55,432 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:21:55,432 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:21:55,432 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:21:55,433 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:21:55,433 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:21:55,433 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:21:55,433 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:21:55,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:21:55,433 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:21:55,434 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:21:55,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:21:55,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:21:55,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:21:55,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:21:55,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:21:55,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:21:55,435 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:21:55,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:21:55,435 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:21:55,435 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:21:55,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:21:55,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:21:55,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:21:55,436 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:21:55,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:21:55,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:21:55,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:21:55,437 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:21:55,438 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:21:55,438 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20f541ceeb4d88c1ded29d751212bcde5b7dc0f0 [2019-12-07 17:21:55,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:21:55,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:21:55,554 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:21:55,555 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:21:55,555 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:21:55,556 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/subseq-alloca-2.i [2019-12-07 17:21:55,603 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/data/50d515895/9abb6e57808940aebe74c02e24778722/FLAGa5bfccf59 [2019-12-07 17:21:55,970 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:21:55,970 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/sv-benchmarks/c/array-memsafety/subseq-alloca-2.i [2019-12-07 17:21:55,980 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/data/50d515895/9abb6e57808940aebe74c02e24778722/FLAGa5bfccf59 [2019-12-07 17:21:56,348 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/data/50d515895/9abb6e57808940aebe74c02e24778722 [2019-12-07 17:21:56,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:21:56,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:21:56,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:21:56,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:21:56,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:21:56,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:21:56" (1/1) ... [2019-12-07 17:21:56,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f115626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56, skipping insertion in model container [2019-12-07 17:21:56,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:21:56" (1/1) ... [2019-12-07 17:21:56,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:21:56,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:21:56,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:21:56,591 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:21:56,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:21:56,650 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:21:56,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56 WrapperNode [2019-12-07 17:21:56,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:21:56,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:21:56,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:21:56,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:21:56,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56" (1/1) ... [2019-12-07 17:21:56,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56" (1/1) ... [2019-12-07 17:21:56,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:21:56,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:21:56,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:21:56,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:21:56,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56" (1/1) ... [2019-12-07 17:21:56,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56" (1/1) ... [2019-12-07 17:21:56,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56" (1/1) ... [2019-12-07 17:21:56,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56" (1/1) ... [2019-12-07 17:21:56,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56" (1/1) ... [2019-12-07 17:21:56,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56" (1/1) ... [2019-12-07 17:21:56,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56" (1/1) ... [2019-12-07 17:21:56,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:21:56,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:21:56,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:21:56,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:21:56,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/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 [2019-12-07 17:21:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 17:21:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:21:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:21:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:21:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:21:56,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:21:56,909 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:21:56,910 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 17:21:56,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:21:56 BoogieIcfgContainer [2019-12-07 17:21:56,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:21:56,911 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:21:56,911 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:21:56,913 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:21:56,914 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:21:56,914 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:21:56" (1/3) ... [2019-12-07 17:21:56,914 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3101cd07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:21:56, skipping insertion in model container [2019-12-07 17:21:56,914 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:21:56,915 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:56" (2/3) ... [2019-12-07 17:21:56,915 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3101cd07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:21:56, skipping insertion in model container [2019-12-07 17:21:56,915 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:21:56,915 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:21:56" (3/3) ... [2019-12-07 17:21:56,916 INFO L371 chiAutomizerObserver]: Analyzing ICFG subseq-alloca-2.i [2019-12-07 17:21:56,944 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:21:56,944 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:21:56,944 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:21:56,944 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:21:56,944 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:21:56,944 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:21:56,944 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:21:56,944 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:21:56,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2019-12-07 17:21:56,967 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 17:21:56,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:21:56,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:21:56,972 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 17:21:56,972 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 17:21:56,972 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:21:56,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2019-12-07 17:21:56,973 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 17:21:56,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:21:56,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:21:56,974 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 17:21:56,974 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 17:21:56,979 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 18#L530true assume !(main_~length1~0 < 1); 21#L530-2true assume !(main_~length2~0 < 1); 13#L533-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 5#L539-3true [2019-12-07 17:21:56,979 INFO L796 eck$LassoCheckResult]: Loop: 5#L539-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 3#L539-2true main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 5#L539-3true [2019-12-07 17:21:56,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:56,983 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-12-07 17:21:56,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:56,988 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557004933] [2019-12-07 17:21:56,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:57,076 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:57,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:57,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-12-07 17:21:57,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:57,077 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47986253] [2019-12-07 17:21:57,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:57,089 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:57,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:57,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-12-07 17:21:57,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:57,090 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700199144] [2019-12-07 17:21:57,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:57,119 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:57,301 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:21:57,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:21:57,302 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:21:57,302 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:21:57,302 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:21:57,302 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:57,302 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:21:57,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:21:57,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-2.i_Iteration1_Lasso [2019-12-07 17:21:57,302 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:21:57,302 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:21:57,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:57,611 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:21:57,614 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:57,618 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 [2019-12-07 17:21:57,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:57,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:21:57,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:57,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:57,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:57,622 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:21:57,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:21:57,624 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:57,628 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 [2019-12-07 17:21:57,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:57,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:57,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:57,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:57,632 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:21:57,632 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:21:57,636 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:57,640 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 [2019-12-07 17:21:57,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:57,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:57,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:57,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:57,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:21:57,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:21:57,648 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:57,652 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 [2019-12-07 17:21:57,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:57,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:21:57,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:57,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:57,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:57,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:21:57,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:21:57,661 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:57,665 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 [2019-12-07 17:21:57,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:57,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:57,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:57,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:57,675 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:21:57,675 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:21:57,685 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:21:57,710 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-12-07 17:21:57,710 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:57,715 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:21:57,719 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 17:21:57,719 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:21:57,720 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nondetString1~0.offset, ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1) = -1*ULTIMATE.start_main_~nondetString1~0.offset - 1*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1 Supporting invariants [] [2019-12-07 17:21:57,740 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2019-12-07 17:21:57,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 17:21:57,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:21:57,795 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:21:57,796 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:21:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:21:57,810 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 17:21:57,811 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:21:57,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:21:57,835 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 [2019-12-07 17:21:57,836 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 3 states. [2019-12-07 17:21:57,907 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 3 states. Result 51 states and 76 transitions. Complement of second has 8 states. [2019-12-07 17:21:57,908 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 [2019-12-07 17:21:57,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 17:21:57,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2019-12-07 17:21:57,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 17:21:57,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:21:57,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 17:21:57,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:21:57,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 17:21:57,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:21:57,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 76 transitions. [2019-12-07 17:21:57,917 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-12-07 17:21:57,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 17 states and 24 transitions. [2019-12-07 17:21:57,922 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-12-07 17:21:57,922 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-12-07 17:21:57,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2019-12-07 17:21:57,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:21:57,924 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-12-07 17:21:57,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2019-12-07 17:21:57,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 17:21:57,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 17:21:57,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2019-12-07 17:21:57,945 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-12-07 17:21:57,945 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-12-07 17:21:57,945 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:21:57,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2019-12-07 17:21:57,946 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-12-07 17:21:57,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:21:57,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:21:57,946 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:21:57,946 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 17:21:57,947 INFO L794 eck$LassoCheckResult]: Stem: 165#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 161#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 162#L530 assume !(main_~length1~0 < 1); 166#L530-2 assume !(main_~length2~0 < 1); 163#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 155#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 156#L539-4 main_~i~1 := 0; 157#L545-3 [2019-12-07 17:21:57,947 INFO L796 eck$LassoCheckResult]: Loop: 157#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 160#L545-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 157#L545-3 [2019-12-07 17:21:57,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:57,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-12-07 17:21:57,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:57,947 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349383935] [2019-12-07 17:21:57,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:57,967 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:57,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:57,967 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-12-07 17:21:57,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:57,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566806641] [2019-12-07 17:21:57,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:57,978 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:57,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:57,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2019-12-07 17:21:57,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:57,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803051076] [2019-12-07 17:21:57,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:58,005 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:58,143 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-12-07 17:21:58,182 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:21:58,182 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:21:58,182 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:21:58,182 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:21:58,182 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:21:58,182 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:58,182 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:21:58,182 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:21:58,182 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-2.i_Iteration2_Lasso [2019-12-07 17:21:58,182 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:21:58,182 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:21:58,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:21:58,470 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:21:58,470 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:58,473 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 [2019-12-07 17:21:58,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:58,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:21:58,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:58,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:58,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:58,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:21:58,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:21:58,476 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:58,480 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 [2019-12-07 17:21:58,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:58,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:21:58,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:58,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:58,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:58,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:21:58,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:21:58,483 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:58,487 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 [2019-12-07 17:21:58,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:58,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:21:58,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:58,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:58,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:58,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:21:58,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:21:58,490 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:58,497 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 [2019-12-07 17:21:58,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:58,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:58,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:58,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:58,500 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:21:58,501 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:21:58,503 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:58,508 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 [2019-12-07 17:21:58,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:58,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:21:58,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:58,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:58,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:58,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:21:58,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:21:58,511 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:58,515 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 [2019-12-07 17:21:58,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:58,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:58,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:58,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:58,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:21:58,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:21:58,521 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:58,529 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 [2019-12-07 17:21:58,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:58,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:58,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:58,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:58,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:21:58,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:21:58,535 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:58,539 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 [2019-12-07 17:21:58,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:58,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:21:58,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:58,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:58,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:58,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:21:58,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:21:58,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:58,546 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 [2019-12-07 17:21:58,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:58,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:58,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:58,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:58,549 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:21:58,549 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:21:58,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:58,558 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 [2019-12-07 17:21:58,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:21:58,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:21:58,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:21:58,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:21:58,565 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:21:58,565 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:21:58,577 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:21:58,601 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-12-07 17:21:58,601 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:21:58,605 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:21:58,608 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 17:21:58,608 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:21:58,608 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2019-12-07 17:21:58,622 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-12-07 17:21:58,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:21:58,637 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:21:58,637 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:21:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:21:58,641 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:21:58,642 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:21:58,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:21:58,649 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 [2019-12-07 17:21:58,649 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-12-07 17:21:58,662 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 25 states and 38 transitions. Complement of second has 6 states. [2019-12-07 17:21:58,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 17:21:58,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 17:21:58,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2019-12-07 17:21:58,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 17:21:58,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:21:58,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 17:21:58,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:21:58,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 7 letters. Loop has 4 letters. [2019-12-07 17:21:58,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:21:58,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 38 transitions. [2019-12-07 17:21:58,665 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 17:21:58,666 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 18 states and 26 transitions. [2019-12-07 17:21:58,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 17:21:58,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 17:21:58,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2019-12-07 17:21:58,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:21:58,667 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-12-07 17:21:58,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2019-12-07 17:21:58,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 17:21:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 17:21:58,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2019-12-07 17:21:58,668 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-12-07 17:21:58,669 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-12-07 17:21:58,669 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:21:58,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2019-12-07 17:21:58,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 17:21:58,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:21:58,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:21:58,670 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:21:58,670 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 17:21:58,670 INFO L794 eck$LassoCheckResult]: Stem: 282#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 278#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 279#L530 assume !(main_~length1~0 < 1); 283#L530-2 assume !(main_~length2~0 < 1); 280#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 271#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 272#L539-4 main_~i~1 := 0; 273#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 281#L545-4 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_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 274#L518-5 [2019-12-07 17:21:58,671 INFO L796 eck$LassoCheckResult]: Loop: 274#L518-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 275#L518-1 assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 269#L518-3 assume !!subseq_#t~short4;havoc subseq_#t~mem2;havoc subseq_#t~mem3;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 270#L519 assume !(subseq_#t~mem5 == subseq_#t~mem6);havoc subseq_#t~mem5;havoc subseq_#t~mem6; 284#L519-2 subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 274#L518-5 [2019-12-07 17:21:58,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:58,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2019-12-07 17:21:58,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:58,671 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914964184] [2019-12-07 17:21:58,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:58,699 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:58,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:58,699 INFO L82 PathProgramCache]: Analyzing trace with hash 74536249, now seen corresponding path program 1 times [2019-12-07 17:21:58,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:58,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638670753] [2019-12-07 17:21:58,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:58,708 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:58,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:58,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1034036476, now seen corresponding path program 1 times [2019-12-07 17:21:58,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:58,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793362871] [2019-12-07 17:21:58,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:21:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:21:58,873 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793362871] [2019-12-07 17:21:58,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:21:58,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-12-07 17:21:58,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213956502] [2019-12-07 17:21:58,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:21:58,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 17:21:58,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:21:58,967 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 11 Second operand 9 states. [2019-12-07 17:21:59,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:21:59,174 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2019-12-07 17:21:59,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 17:21:59,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 50 transitions. [2019-12-07 17:21:59,175 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2019-12-07 17:21:59,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 37 states and 50 transitions. [2019-12-07 17:21:59,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2019-12-07 17:21:59,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2019-12-07 17:21:59,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 50 transitions. [2019-12-07 17:21:59,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:21:59,177 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2019-12-07 17:21:59,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 50 transitions. [2019-12-07 17:21:59,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2019-12-07 17:21:59,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 17:21:59,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 38 transitions. [2019-12-07 17:21:59,179 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 38 transitions. [2019-12-07 17:21:59,179 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 38 transitions. [2019-12-07 17:21:59,179 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 17:21:59,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 38 transitions. [2019-12-07 17:21:59,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-12-07 17:21:59,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:21:59,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:21:59,180 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:21:59,180 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 17:21:59,180 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 366#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 367#L530 assume !(main_~length1~0 < 1); 374#L530-2 assume !(main_~length2~0 < 1); 368#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 358#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 359#L539-4 main_~i~1 := 0; 361#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 369#L545-4 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_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 379#L518-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 376#L518-1 assume !subseq_#t~short4; 356#L518-3 [2019-12-07 17:21:59,180 INFO L796 eck$LassoCheckResult]: Loop: 356#L518-3 assume !!subseq_#t~short4;havoc subseq_#t~mem2;havoc subseq_#t~mem3;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 357#L519 assume subseq_#t~mem5 == subseq_#t~mem6;havoc subseq_#t~mem5;havoc subseq_#t~mem6;subseq_#t~post7.base, subseq_#t~post7.offset := subseq_~ps~0.base, subseq_~ps~0.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_#t~post7.base, 1 + subseq_#t~post7.offset;havoc subseq_#t~post7.base, subseq_#t~post7.offset; 375#L519-2 subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 362#L518-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 363#L518-1 assume !subseq_#t~short4; 356#L518-3 [2019-12-07 17:21:59,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:59,180 INFO L82 PathProgramCache]: Analyzing trace with hash -2087759909, now seen corresponding path program 1 times [2019-12-07 17:21:59,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:59,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059159420] [2019-12-07 17:21:59,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,210 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:59,211 INFO L82 PathProgramCache]: Analyzing trace with hash 85028899, now seen corresponding path program 1 times [2019-12-07 17:21:59,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:59,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644218816] [2019-12-07 17:21:59,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,220 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:59,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:59,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1514407799, now seen corresponding path program 1 times [2019-12-07 17:21:59,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:59,220 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234354083] [2019-12-07 17:21:59,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:21:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:21:59,237 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234354083] [2019-12-07 17:21:59,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:21:59,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:21:59,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397248482] [2019-12-07 17:21:59,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:21:59,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:21:59,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:21:59,315 INFO L87 Difference]: Start difference. First operand 27 states and 38 transitions. cyclomatic complexity: 15 Second operand 3 states. [2019-12-07 17:21:59,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:21:59,320 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2019-12-07 17:21:59,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:21:59,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 38 transitions. [2019-12-07 17:21:59,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 17:21:59,322 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 36 transitions. [2019-12-07 17:21:59,322 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2019-12-07 17:21:59,322 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2019-12-07 17:21:59,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2019-12-07 17:21:59,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:21:59,322 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-12-07 17:21:59,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2019-12-07 17:21:59,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 17:21:59,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 17:21:59,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-12-07 17:21:59,324 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-12-07 17:21:59,324 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-12-07 17:21:59,324 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 17:21:59,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 36 transitions. [2019-12-07 17:21:59,325 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 17:21:59,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:21:59,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:21:59,325 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:21:59,325 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 17:21:59,325 INFO L794 eck$LassoCheckResult]: Stem: 434#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 429#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 430#L530 assume !(main_~length1~0 < 1); 436#L530-2 assume !(main_~length2~0 < 1); 431#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 421#L539-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 417#L539-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 418#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 423#L539-4 main_~i~1 := 0; 424#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 435#L545-4 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_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 425#L518-5 [2019-12-07 17:21:59,325 INFO L796 eck$LassoCheckResult]: Loop: 425#L518-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 426#L518-1 assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 419#L518-3 assume !!subseq_#t~short4;havoc subseq_#t~mem2;havoc subseq_#t~mem3;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 420#L519 assume !(subseq_#t~mem5 == subseq_#t~mem6);havoc subseq_#t~mem5;havoc subseq_#t~mem6; 438#L519-2 subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 425#L518-5 [2019-12-07 17:21:59,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:59,326 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2019-12-07 17:21:59,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:59,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744143640] [2019-12-07 17:21:59,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,346 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:59,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:59,346 INFO L82 PathProgramCache]: Analyzing trace with hash 74536249, now seen corresponding path program 2 times [2019-12-07 17:21:59,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:59,347 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163703924] [2019-12-07 17:21:59,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,355 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:59,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:59,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1928298466, now seen corresponding path program 1 times [2019-12-07 17:21:59,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:59,356 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349594819] [2019-12-07 17:21:59,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:21:59,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 17:21:59,421 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349594819] [2019-12-07 17:21:59,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:21:59,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-07 17:21:59,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415817891] [2019-12-07 17:21:59,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:21:59,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 17:21:59,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:21:59,496 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. cyclomatic complexity: 13 Second operand 8 states. [2019-12-07 17:21:59,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:21:59,552 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2019-12-07 17:21:59,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 17:21:59,553 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 44 transitions. [2019-12-07 17:21:59,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 17:21:59,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 29 states and 36 transitions. [2019-12-07 17:21:59,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2019-12-07 17:21:59,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2019-12-07 17:21:59,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2019-12-07 17:21:59,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:21:59,555 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2019-12-07 17:21:59,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2019-12-07 17:21:59,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-12-07 17:21:59,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 17:21:59,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2019-12-07 17:21:59,556 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2019-12-07 17:21:59,556 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2019-12-07 17:21:59,556 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 17:21:59,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 34 transitions. [2019-12-07 17:21:59,557 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 17:21:59,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:21:59,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:21:59,558 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:21:59,558 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 17:21:59,558 INFO L794 eck$LassoCheckResult]: Stem: 518#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 512#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 513#L530 assume !(main_~length1~0 < 1); 520#L530-2 assume !(main_~length2~0 < 1); 514#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 504#L539-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 500#L539-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 501#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 506#L539-4 main_~i~1 := 0; 515#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 516#L545-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 526#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 519#L545-4 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_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 508#L518-5 [2019-12-07 17:21:59,558 INFO L796 eck$LassoCheckResult]: Loop: 508#L518-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 509#L518-1 assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 502#L518-3 assume !!subseq_#t~short4;havoc subseq_#t~mem2;havoc subseq_#t~mem3;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 503#L519 assume !(subseq_#t~mem5 == subseq_#t~mem6);havoc subseq_#t~mem5;havoc subseq_#t~mem6; 522#L519-2 subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 508#L518-5 [2019-12-07 17:21:59,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:59,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2019-12-07 17:21:59,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:59,558 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90434375] [2019-12-07 17:21:59,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,582 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:59,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:59,583 INFO L82 PathProgramCache]: Analyzing trace with hash 74536249, now seen corresponding path program 3 times [2019-12-07 17:21:59,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:59,583 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859788254] [2019-12-07 17:21:59,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,590 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:59,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:59,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1075475712, now seen corresponding path program 1 times [2019-12-07 17:21:59,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:59,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590914417] [2019-12-07 17:21:59,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:59,625 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:22:00,030 WARN L192 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 116 [2019-12-07 17:22:00,169 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-12-07 17:22:00,171 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:22:00,171 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:22:00,171 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:22:00,171 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:22:00,171 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:22:00,171 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:00,171 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:22:00,171 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:22:00,171 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-2.i_Iteration6_Lasso [2019-12-07 17:22:00,171 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:22:00,171 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:22:00,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,501 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2019-12-07 17:22:00,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:00,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:22:01,056 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:22:01,056 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,059 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 [2019-12-07 17:22:01,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,062 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,067 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 [2019-12-07 17:22:01,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,074 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 [2019-12-07 17:22:01,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,080 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 [2019-12-07 17:22:01,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:22:01,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:22:01,084 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,088 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 [2019-12-07 17:22:01,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,091 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,096 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 [2019-12-07 17:22:01,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,099 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,104 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 [2019-12-07 17:22:01,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,106 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,111 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 [2019-12-07 17:22:01,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,118 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 [2019-12-07 17:22:01,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,124 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 [2019-12-07 17:22:01,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,125 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,126 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,130 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 [2019-12-07 17:22:01,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,132 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:22:01,132 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:22:01,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 17:22:01,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,141 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,144 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 [2019-12-07 17:22:01,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,150 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 [2019-12-07 17:22:01,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:22:01,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:22:01,154 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,157 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 [2019-12-07 17:22:01,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,158 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,159 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,160 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,164 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 [2019-12-07 17:22:01,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,166 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,170 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 [2019-12-07 17:22:01,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,172 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 17:22:01,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:22:01,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:22:01,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:22:01,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,182 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 [2019-12-07 17:22:01,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:22:01,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:22:01,198 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,202 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 [2019-12-07 17:22:01,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,205 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:22:01,205 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:22:01,208 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,212 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 [2019-12-07 17:22:01,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,213 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:22:01,213 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:22:01,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,219 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 [2019-12-07 17:22:01,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:22:01,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:22:01,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:22:01,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:22:01,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:22:01,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:22:01,249 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:22:01,288 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2019-12-07 17:22:01,288 INFO L444 ModelExtractionUtils]: 20 out of 55 variables were initially zero. Simplification set additionally 30 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cefdf637-2bd5-405f-89ea-5a7d488a2212/bin/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:22:01,291 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:22:01,294 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 17:22:01,294 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:22:01,294 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_subseq_~pt~0.offset, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_subseq_~pt~0.offset + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 + 1*ULTIMATE.start_main_~length2~0 >= 0] [2019-12-07 17:22:01,370 INFO L297 tatePredicateManager]: 24 out of 26 supporting invariants were superfluous and have been removed [2019-12-07 17:22:01,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:22:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:22:01,401 INFO L264 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 17:22:01,402 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:22:01,431 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:22:01,431 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-12-07 17:22:01,431 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:22:01,445 INFO L614 ElimStorePlain]: treesize reduction 10, result has 65.5 percent of original size [2019-12-07 17:22:01,445 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:22:01,445 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:14, output treesize:10 [2019-12-07 17:22:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:22:01,460 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 17:22:01,460 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:22:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:22:01,473 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 17:22:01,473 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 34 transitions. cyclomatic complexity: 11 Second operand 5 states. [2019-12-07 17:22:01,513 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 34 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 35 states and 45 transitions. Complement of second has 7 states. [2019-12-07 17:22:01,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 17:22:01,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 17:22:01,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-12-07 17:22:01,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 13 letters. Loop has 5 letters. [2019-12-07 17:22:01,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:22:01,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 18 letters. Loop has 5 letters. [2019-12-07 17:22:01,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:22:01,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 13 letters. Loop has 10 letters. [2019-12-07 17:22:01,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:22:01,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2019-12-07 17:22:01,515 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:22:01,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2019-12-07 17:22:01,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 17:22:01,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 17:22:01,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 17:22:01,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:22:01,516 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:22:01,516 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:22:01,516 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:22:01,516 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 17:22:01,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:22:01,516 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:22:01,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 17:22:01,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:22:01 BoogieIcfgContainer [2019-12-07 17:22:01,521 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:22:01,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:22:01,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:22:01,522 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:22:01,522 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:21:56" (3/4) ... [2019-12-07 17:22:01,525 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:22:01,525 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:22:01,526 INFO L168 Benchmark]: Toolchain (without parser) took 5175.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.0 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -255.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:22:01,527 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:22:01,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -135.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:22:01,527 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:22:01,528 INFO L168 Benchmark]: Boogie Preprocessor took 19.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:22:01,528 INFO L168 Benchmark]: RCFGBuilder took 209.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:22:01,529 INFO L168 Benchmark]: BuchiAutomizer took 4610.35 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 113.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -147.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:22:01,529 INFO L168 Benchmark]: Witness Printer took 3.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:22:01,531 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -135.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 209.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4610.35 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 113.8 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -147.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 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 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * nondetString1 + -1 * i + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 5 locations. One deterministic module has affine ranking function -1 * i + length2 and consists of 4 locations. One deterministic module has affine ranking function -1 * pt + length2 and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 96 SDtfs, 182 SDslu, 150 SDs, 0 SdLazy, 161 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital202 mio100 ax110 hnf98 lsp84 ukn73 mio100 lsp49 div100 bol100 ite100 ukn100 eq177 hnf89 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 2 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...