./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/subseq-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/subseq-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cf112a0fbbdfc44a3bb289156f3ed9f3cdfb386d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:48:03,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:48:03,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:48:03,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:48:03,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:48:03,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:48:03,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:48:03,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:48:03,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:48:03,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:48:03,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:48:03,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:48:03,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:48:03,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:48:03,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:48:03,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:48:03,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:48:03,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:48:03,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:48:03,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:48:03,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:48:03,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:48:03,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:48:03,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:48:03,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:48:03,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:48:03,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:48:03,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:48:03,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:48:03,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:48:03,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:48:03,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:48:03,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:48:03,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:48:03,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:48:03,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:48:03,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:48:03,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:48:03,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:48:03,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:48:03,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:48:03,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 02:48:03,869 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:48:03,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:48:03,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:48:03,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:48:03,870 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:48:03,871 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 02:48:03,871 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 02:48:03,871 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 02:48:03,871 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 02:48:03,871 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 02:48:03,871 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 02:48:03,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:48:03,872 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:48:03,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:48:03,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:48:03,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 02:48:03,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 02:48:03,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 02:48:03,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:48:03,873 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 02:48:03,873 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:48:03,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 02:48:03,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:48:03,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:48:03,874 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 02:48:03,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:48:03,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:48:03,875 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 02:48:03,876 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 02:48:03,876 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_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf112a0fbbdfc44a3bb289156f3ed9f3cdfb386d [2019-11-20 02:48:04,041 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:48:04,053 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:48:04,056 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:48:04,057 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:48:04,057 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:48:04,058 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/subseq-alloca-1.i [2019-11-20 02:48:04,116 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/data/def73bfac/39c676474ad147cfbaba82181e41a8fe/FLAG63fa4ce0e [2019-11-20 02:48:04,618 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:48:04,619 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/sv-benchmarks/c/termination-memory-alloca/subseq-alloca-1.i [2019-11-20 02:48:04,637 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/data/def73bfac/39c676474ad147cfbaba82181e41a8fe/FLAG63fa4ce0e [2019-11-20 02:48:05,128 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/data/def73bfac/39c676474ad147cfbaba82181e41a8fe [2019-11-20 02:48:05,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:48:05,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:48:05,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:48:05,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:48:05,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:48:05,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:48:05" (1/1) ... [2019-11-20 02:48:05,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166423e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05, skipping insertion in model container [2019-11-20 02:48:05,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:48:05" (1/1) ... [2019-11-20 02:48:05,145 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:48:05,193 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:48:05,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:48:05,557 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:48:05,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:48:05,671 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:48:05,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05 WrapperNode [2019-11-20 02:48:05,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:48:05,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:48:05,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:48:05,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:48:05,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05" (1/1) ... [2019-11-20 02:48:05,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05" (1/1) ... [2019-11-20 02:48:05,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:48:05,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:48:05,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:48:05,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:48:05,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05" (1/1) ... [2019-11-20 02:48:05,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05" (1/1) ... [2019-11-20 02:48:05,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05" (1/1) ... [2019-11-20 02:48:05,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05" (1/1) ... [2019-11-20 02:48:05,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05" (1/1) ... [2019-11-20 02:48:05,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05" (1/1) ... [2019-11-20 02:48:05,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05" (1/1) ... [2019-11-20 02:48:05,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:48:05,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:48:05,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:48:05,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:48:05,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 02:48:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 02:48:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 02:48:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 02:48:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:48:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:48:06,194 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:48:06,194 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 02:48:06,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:48:06 BoogieIcfgContainer [2019-11-20 02:48:06,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:48:06,196 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 02:48:06,196 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 02:48:06,199 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 02:48:06,199 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:48:06,199 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 02:48:05" (1/3) ... [2019-11-20 02:48:06,200 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79530bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:48:06, skipping insertion in model container [2019-11-20 02:48:06,200 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:48:06,200 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:48:05" (2/3) ... [2019-11-20 02:48:06,201 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79530bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:48:06, skipping insertion in model container [2019-11-20 02:48:06,201 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:48:06,201 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:48:06" (3/3) ... [2019-11-20 02:48:06,203 INFO L371 chiAutomizerObserver]: Analyzing ICFG subseq-alloca-1.i [2019-11-20 02:48:06,243 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 02:48:06,243 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 02:48:06,243 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 02:48:06,243 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:48:06,244 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:48:06,244 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 02:48:06,244 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:48:06,244 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 02:48:06,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-20 02:48:06,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 02:48:06,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:48:06,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:48:06,288 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 02:48:06,288 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-20 02:48:06,288 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 02:48:06,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-20 02:48:06,289 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 02:48:06,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:48:06,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:48:06,290 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 02:48:06,290 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-20 02:48:06,295 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#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~ret14, 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; 11#L563true assume !(main_~length1~0 < 1); 15#L563-2true assume !(main_~length2~0 < 1); 8#L566-1true 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;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; 6#L551-5true [2019-11-20 02:48:06,296 INFO L796 eck$LassoCheckResult]: Loop: 6#L551-5true call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 16#L551-1true 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; 3#L551-3true assume !!subseq_#t~short4;havoc subseq_#t~mem3;havoc subseq_#t~mem2;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); 12#L552true assume subseq_#t~mem5 == subseq_#t~mem6;havoc subseq_#t~mem6;havoc subseq_#t~mem5;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; 17#L552-2true 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; 6#L551-5true [2019-11-20 02:48:06,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:48:06,302 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-20 02:48:06,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:48:06,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008145090] [2019-11-20 02:48:06,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:48:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:48:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:48:06,455 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:48:06,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:48:06,456 INFO L82 PathProgramCache]: Analyzing trace with hash 47815647, now seen corresponding path program 1 times [2019-11-20 02:48:06,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:48:06,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087356829] [2019-11-20 02:48:06,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:48:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:48:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:48:06,482 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:48:06,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:48:06,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1594114490, now seen corresponding path program 1 times [2019-11-20 02:48:06,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:48:06,485 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322367647] [2019-11-20 02:48:06,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:48:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:48:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:48:06,582 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:48:06,862 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-11-20 02:48:07,331 WARN L191 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2019-11-20 02:48:07,496 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-11-20 02:48:07,508 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:48:07,509 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:48:07,509 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:48:07,509 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:48:07,510 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:48:07,510 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:07,510 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:48:07,510 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:48:07,510 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-1.i_Iteration1_Lasso [2019-11-20 02:48:07,511 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:48:07,511 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:48:07,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:07,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:07,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:07,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:07,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,014 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-11-20 02:48:08,209 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-11-20 02:48:08,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:08,987 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:48:08,992 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:09,001 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:09,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:09,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:48:09,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:09,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:09,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:09,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:48:09,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:48:09,013 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:09,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:09,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:09,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:48:09,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:09,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:09,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:09,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:48:09,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:48:09,035 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:09,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:09,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:09,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:48:09,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:09,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:09,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:09,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:48:09,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:48:09,057 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:09,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:09,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:09,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:48:09,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:09,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:09,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:09,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:48:09,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:48:09,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:09,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:09,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:09,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:09,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:09,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:09,116 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:48:09,123 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:48:09,140 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/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 [2019-11-20 02:48:09,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:09,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:09,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:09,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:09,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:09,181 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:48:09,182 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:48:09,207 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:48:09,420 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2019-11-20 02:48:09,420 INFO L444 ModelExtractionUtils]: 11 out of 49 variables were initially zero. Simplification set additionally 35 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:48:09,437 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:09,441 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 02:48:09,441 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:48:09,442 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1, ULTIMATE.start_subseq_~ps~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1 - 1*ULTIMATE.start_subseq_~ps~0.offset Supporting invariants [] [2019-11-20 02:48:09,512 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2019-11-20 02:48:09,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 02:48:09,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:48:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:48:09,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 02:48:09,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:48:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:48:09,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 02:48:09,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:48:09,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:48:09,695 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 02:48:09,697 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 4 states. [2019-11-20 02:48:09,779 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 4 states. Result 35 states and 48 transitions. Complement of second has 8 states. [2019-11-20 02:48:09,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 02:48:09,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 02:48:09,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2019-11-20 02:48:09,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 5 letters. Loop has 5 letters. [2019-11-20 02:48:09,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:48:09,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 10 letters. Loop has 5 letters. [2019-11-20 02:48:09,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:48:09,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 5 letters. Loop has 10 letters. [2019-11-20 02:48:09,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:48:09,787 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 48 transitions. [2019-11-20 02:48:09,789 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 02:48:09,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 20 states and 28 transitions. [2019-11-20 02:48:09,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-20 02:48:09,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-20 02:48:09,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 28 transitions. [2019-11-20 02:48:09,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:48:09,797 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-11-20 02:48:09,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 28 transitions. [2019-11-20 02:48:09,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2019-11-20 02:48:09,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 02:48:09,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2019-11-20 02:48:09,825 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-11-20 02:48:09,825 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-11-20 02:48:09,825 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 02:48:09,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2019-11-20 02:48:09,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 02:48:09,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:48:09,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:48:09,827 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 02:48:09,827 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-20 02:48:09,828 INFO L794 eck$LassoCheckResult]: Stem: 185#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 179#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~ret14, 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; 180#L563 assume !(main_~length1~0 < 1); 186#L563-2 assume !(main_~length2~0 < 1); 194#L566-1 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;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; 195#L551-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 191#L551-1 [2019-11-20 02:48:09,828 INFO L796 eck$LassoCheckResult]: Loop: 191#L551-1 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; 181#L551-3 assume !!subseq_#t~short4;havoc subseq_#t~mem3;havoc subseq_#t~mem2;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); 182#L552 assume !(subseq_#t~mem5 == subseq_#t~mem6);havoc subseq_#t~mem6;havoc subseq_#t~mem5; 187#L552-2 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; 190#L551-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 191#L551-1 [2019-11-20 02:48:09,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:48:09,828 INFO L82 PathProgramCache]: Analyzing trace with hash 889572238, now seen corresponding path program 1 times [2019-11-20 02:48:09,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:48:09,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885097305] [2019-11-20 02:48:09,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:48:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:48:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:48:09,913 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:48:09,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:48:09,918 INFO L82 PathProgramCache]: Analyzing trace with hash 50829449, now seen corresponding path program 1 times [2019-11-20 02:48:09,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:48:09,919 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469959400] [2019-11-20 02:48:09,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:48:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:48:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:48:09,938 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:48:09,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:48:09,938 INFO L82 PathProgramCache]: Analyzing trace with hash -2122056420, now seen corresponding path program 1 times [2019-11-20 02:48:09,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:48:09,939 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878418328] [2019-11-20 02:48:09,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:48:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:48:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:48:10,000 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:48:10,140 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-11-20 02:48:10,350 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-11-20 02:48:10,857 WARN L191 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 100 [2019-11-20 02:48:11,324 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-11-20 02:48:11,332 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:48:11,332 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:48:11,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:48:11,333 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:48:11,333 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:48:11,333 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:11,333 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:48:11,333 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:48:11,333 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-1.i_Iteration2_Lasso [2019-11-20 02:48:11,333 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:48:11,333 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:48:11,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:11,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:11,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:11,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,233 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-11-20 02:48:12,360 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-11-20 02:48:12,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:48:12,995 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 33 [2019-11-20 02:48:13,103 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:48:13,103 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:13,112 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:13,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:13,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:48:13,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:13,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:13,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:13,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:48:13,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:48:13,116 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:13,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:13,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:13,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:13,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:13,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:13,127 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:48:13,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:48:13,131 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:13,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:13,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:13,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:48:13,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:13,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:13,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:13,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:48:13,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:48:13,157 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/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 [2019-11-20 02:48:13,170 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 [2019-11-20 02:48:13,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:13,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:13,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:13,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:13,176 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:48:13,176 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:48:13,184 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/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) [2019-11-20 02:48:13,196 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:13,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:13,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:13,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:13,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:13,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:48:13,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:13,219 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/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) [2019-11-20 02:48:13,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:13,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:13,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:13,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:13,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:13,246 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:48:13,246 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:13,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/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 [2019-11-20 02:48:13,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:13,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:13,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:13,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:13,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:13,272 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:48:13,272 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:48:13,275 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/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) [2019-11-20 02:48:13,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:13,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:13,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:13,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:13,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:13,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:48:13,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:13,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/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) [2019-11-20 02:48:13,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:13,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:13,321 INFO L203 nArgumentSynthesizer]: 3 stem disjuncts [2019-11-20 02:48:13,321 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2019-11-20 02:48:13,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:13,432 INFO L401 nArgumentSynthesizer]: We have 192 Motzkin's Theorem applications. [2019-11-20 02:48:13,432 INFO L402 nArgumentSynthesizer]: A total of 16 supporting invariants were added. [2019-11-20 02:48:13,661 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/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 [2019-11-20 02:48:13,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:13,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:13,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:13,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:13,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:13,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:48:13,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:48:13,674 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/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 [2019-11-20 02:48:13,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:13,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:13,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:13,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:13,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:13,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:48:13,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:48:13,712 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/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) [2019-11-20 02:48:13,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:48:13,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:48:13,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:48:13,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:48:13,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:48:13,739 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:48:13,740 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:13,753 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:48:13,772 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-20 02:48:13,772 INFO L444 ModelExtractionUtils]: 22 out of 28 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52482515-4bb0-48ff-914d-4f577088037c/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) [2019-11-20 02:48:13,776 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:48:13,779 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 02:48:13,779 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:48:13,780 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2, ULTIMATE.start_subseq_~pt~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2 - 1*ULTIMATE.start_subseq_~pt~0.offset Supporting invariants [] [2019-11-20 02:48:13,854 INFO L297 tatePredicateManager]: 14 out of 15 supporting invariants were superfluous and have been removed [2019-11-20 02:48:13,857 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 02:48:13,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:48:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:48:13,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 02:48:13,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:48:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:48:13,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 02:48:13,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:48:13,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:48:13,971 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-20 02:48:13,972 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 9 Second operand 5 states. [2019-11-20 02:48:14,024 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 9. Second operand 5 states. Result 35 states and 51 transitions. Complement of second has 7 states. [2019-11-20 02:48:14,026 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 [2019-11-20 02:48:14,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 02:48:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2019-11-20 02:48:14,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 6 letters. Loop has 5 letters. [2019-11-20 02:48:14,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:48:14,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 11 letters. Loop has 5 letters. [2019-11-20 02:48:14,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:48:14,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 6 letters. Loop has 10 letters. [2019-11-20 02:48:14,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:48:14,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 51 transitions. [2019-11-20 02:48:14,034 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:48:14,036 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2019-11-20 02:48:14,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 02:48:14,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 02:48:14,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 02:48:14,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:48:14,037 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:48:14,037 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:48:14,037 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:48:14,037 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 02:48:14,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:48:14,038 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:48:14,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 02:48:14,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 02:48:14 BoogieIcfgContainer [2019-11-20 02:48:14,044 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 02:48:14,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:48:14,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:48:14,044 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:48:14,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:48:06" (3/4) ... [2019-11-20 02:48:14,048 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 02:48:14,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:48:14,050 INFO L168 Benchmark]: Toolchain (without parser) took 8917.81 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 293.6 MB). Free memory was 943.4 MB in the beginning and 835.6 MB in the end (delta: 107.8 MB). Peak memory consumption was 401.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:48:14,051 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:48:14,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -151.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-20 02:48:14,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.69 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:48:14,059 INFO L168 Benchmark]: Boogie Preprocessor took 52.16 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. [2019-11-20 02:48:14,059 INFO L168 Benchmark]: RCFGBuilder took 419.27 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: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-11-20 02:48:14,060 INFO L168 Benchmark]: BuchiAutomizer took 7848.05 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 1.1 GB in the beginning and 835.6 MB in the end (delta: 230.7 MB). Peak memory consumption was 411.6 MB. Max. memory is 11.5 GB. [2019-11-20 02:48:14,060 INFO L168 Benchmark]: Witness Printer took 4.06 ms. Allocated memory is still 1.3 GB. Free memory is still 835.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:48:14,070 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 538.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -151.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.69 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.16 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. * RCFGBuilder took 419.27 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: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7848.05 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 1.1 GB in the beginning and 835.6 MB in the end (delta: 230.7 MB). Peak memory consumption was 411.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.06 ms. Allocated memory is still 1.3 GB. Free memory is still 835.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * ps and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * pt and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 7.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 39 SDslu, 16 SDs, 0 SdLazy, 23 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital346 mio100 ax106 hnf99 lsp72 ukn101 mio100 lsp30 div100 bol100 ite100 ukn100 eq198 hnf87 smp100 dnf310 smp73 tf100 neg96 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 355ms VariablesStem: 3 VariablesLoop: 5 DisjunctsStem: 3 DisjunctsLoop: 8 SupportingInvariants: 16 MotzkinApplications: 192 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...