./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrncmp-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrncmp-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d5a995d825785bc5dc95f3825623b1e4ecd07fe ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:32:14,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:32:14,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:32:14,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:32:14,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:32:14,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:32:14,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:32:14,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:32:14,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:32:14,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:32:14,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:32:14,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:32:14,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:32:14,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:32:14,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:32:14,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:32:14,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:32:14,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:32:14,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:32:14,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:32:14,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:32:14,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:32:14,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:32:14,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:32:14,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:32:14,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:32:14,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:32:14,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:32:14,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:32:14,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:32:14,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:32:14,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:32:14,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:32:14,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:32:14,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:32:14,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:32:14,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:32:14,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:32:14,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:32:14,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:32:14,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:32:14,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:32:14,353 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:32:14,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:32:14,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:32:14,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:32:14,354 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:32:14,354 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:32:14,354 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:32:14,355 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:32:14,355 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:32:14,355 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:32:14,355 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:32:14,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:32:14,355 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:32:14,355 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:32:14,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:32:14,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:32:14,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:32:14,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:32:14,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:32:14,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:32:14,356 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:32:14,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:32:14,357 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:32:14,357 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:32:14,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:32:14,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:32:14,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:32:14,357 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:32:14,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:32:14,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:32:14,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:32:14,357 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:32:14,358 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:32:14,358 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_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d5a995d825785bc5dc95f3825623b1e4ecd07fe [2019-12-07 18:32:14,464 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:32:14,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:32:14,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:32:14,475 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:32:14,475 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:32:14,475 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrncmp-alloca-1.i [2019-12-07 18:32:14,512 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/data/34b79774f/ca46d8ce76f14dcab651096dc8ce1dff/FLAG6fee577b2 [2019-12-07 18:32:14,992 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:32:14,993 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/sv-benchmarks/c/array-memsafety/cstrncmp-alloca-1.i [2019-12-07 18:32:15,001 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/data/34b79774f/ca46d8ce76f14dcab651096dc8ce1dff/FLAG6fee577b2 [2019-12-07 18:32:15,010 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/data/34b79774f/ca46d8ce76f14dcab651096dc8ce1dff [2019-12-07 18:32:15,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:32:15,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:32:15,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:32:15,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:32:15,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:32:15,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:32:15" (1/1) ... [2019-12-07 18:32:15,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@362cd1f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15, skipping insertion in model container [2019-12-07 18:32:15,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:32:15" (1/1) ... [2019-12-07 18:32:15,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:32:15,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:32:15,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:32:15,255 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:32:15,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:32:15,314 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:32:15,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15 WrapperNode [2019-12-07 18:32:15,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:32:15,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:32:15,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:32:15,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:32:15,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15" (1/1) ... [2019-12-07 18:32:15,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15" (1/1) ... [2019-12-07 18:32:15,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:32:15,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:32:15,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:32:15,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:32:15,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15" (1/1) ... [2019-12-07 18:32:15,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15" (1/1) ... [2019-12-07 18:32:15,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15" (1/1) ... [2019-12-07 18:32:15,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15" (1/1) ... [2019-12-07 18:32:15,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15" (1/1) ... [2019-12-07 18:32:15,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15" (1/1) ... [2019-12-07 18:32:15,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15" (1/1) ... [2019-12-07 18:32:15,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:32:15,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:32:15,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:32:15,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:32:15,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:32:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:32:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:32:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:32:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:32:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:32:15,589 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:32:15,589 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 18:32:15,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:32:15 BoogieIcfgContainer [2019-12-07 18:32:15,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:32:15,591 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:32:15,591 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:32:15,593 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:32:15,593 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:32:15,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:32:15" (1/3) ... [2019-12-07 18:32:15,594 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ca28204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:32:15, skipping insertion in model container [2019-12-07 18:32:15,594 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:32:15,594 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:15" (2/3) ... [2019-12-07 18:32:15,594 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ca28204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:32:15, skipping insertion in model container [2019-12-07 18:32:15,594 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:32:15,594 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:32:15" (3/3) ... [2019-12-07 18:32:15,595 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrncmp-alloca-1.i [2019-12-07 18:32:15,623 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:32:15,624 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:32:15,624 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:32:15,624 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:32:15,624 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:32:15,624 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:32:15,624 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:32:15,624 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:32:15,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2019-12-07 18:32:15,647 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 18:32:15,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:32:15,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:32:15,651 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 18:32:15,651 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:32:15,652 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:32:15,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2019-12-07 18:32:15,653 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 18:32:15,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:32:15,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:32:15,653 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 18:32:15,654 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:32:15,658 INFO L794 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~malloc16.base, main_#t~malloc16.offset, main_#t~nondet18, main_#t~post17, main_~i~0, main_#t~nondet20, main_#t~post19, main_~i~1, main_#t~nondet21, main_#t~ret22, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet13;havoc main_#t~nondet13;main_~length2~0 := main_#t~nondet14;havoc main_#t~nondet14; 13#L532true assume !(main_~length1~0 < 1); 18#L532-2true assume !(main_~length2~0 < 1); 9#L535-1true call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call main_#t~malloc16.base, main_#t~malloc16.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc16.base, main_#t~malloc16.offset;main_~i~0 := 0; 25#L541-3true [2019-12-07 18:32:15,659 INFO L796 eck$LassoCheckResult]: Loop: 25#L541-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet18, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet18; 22#L541-2true main_#t~post17 := main_~i~0;main_~i~0 := 1 + main_#t~post17;havoc main_#t~post17; 25#L541-3true [2019-12-07 18:32:15,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:15,662 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-12-07 18:32:15,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:15,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983674358] [2019-12-07 18:32:15,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:15,754 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:15,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:15,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-12-07 18:32:15,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:15,755 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243251270] [2019-12-07 18:32:15,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:15,767 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:15,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:15,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-12-07 18:32:15,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:15,769 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999428342] [2019-12-07 18:32:15,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:15,797 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:15,978 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:32:15,979 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:32:15,979 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:32:15,979 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:32:15,979 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:32:15,979 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:15,979 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:32:15,979 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:32:15,979 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncmp-alloca-1.i_Iteration1_Lasso [2019-12-07 18:32:15,979 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:32:15,979 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:32:15,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,297 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:32:16,302 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:16,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:16,310 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:16,312 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:16,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:16,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:16,319 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:16,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:16,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:16,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:16,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:16,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:16,334 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:16,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:16,345 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,349 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:16,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:16,357 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,361 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,364 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:16,364 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:16,368 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:16,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:16,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:16,375 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:16,384 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:16,387 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:16,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:16,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:16,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,403 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:16,403 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:16,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:16,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,414 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:16,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:16,415 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,419 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,422 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:16,422 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:16,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,429 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:16,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:16,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:16,432 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,440 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:16,440 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:16,444 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,457 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:16,457 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:16,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,465 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,468 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:16,468 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:16,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,475 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:16,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:16,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:16,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:16,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:16,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:16,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:16,489 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:32:16,508 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-12-07 18:32:16,509 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,516 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:32:16,523 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:32:16,524 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:32:16,524 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 18:32:16,540 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-12-07 18:32:16,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:32:16,571 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:32:16,572 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:32:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:32:16,581 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:32:16,581 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:32:16,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:32:16,601 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:32:16,602 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states. Second operand 3 states. [2019-12-07 18:32:16,644 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states.. Second operand 3 states. Result 60 states and 91 transitions. Complement of second has 7 states. [2019-12-07 18:32:16,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:32:16,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:32:16,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 61 transitions. [2019-12-07 18:32:16,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 18:32:16,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:32:16,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 18:32:16,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:32:16,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 18:32:16,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:32:16,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 91 transitions. [2019-12-07 18:32:16,653 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-12-07 18:32:16,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 18 states and 25 transitions. [2019-12-07 18:32:16,656 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-12-07 18:32:16,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-12-07 18:32:16,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2019-12-07 18:32:16,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:32:16,657 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-12-07 18:32:16,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2019-12-07 18:32:16,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 18:32:16,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 18:32:16,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2019-12-07 18:32:16,676 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-12-07 18:32:16,677 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-12-07 18:32:16,677 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:32:16,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2019-12-07 18:32:16,677 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-12-07 18:32:16,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:32:16,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:32:16,678 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:32:16,678 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:32:16,678 INFO L794 eck$LassoCheckResult]: Stem: 170#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 166#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~malloc16.base, main_#t~malloc16.offset, main_#t~nondet18, main_#t~post17, main_~i~0, main_#t~nondet20, main_#t~post19, main_~i~1, main_#t~nondet21, main_#t~ret22, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet13;havoc main_#t~nondet13;main_~length2~0 := main_#t~nondet14;havoc main_#t~nondet14; 167#L532 assume !(main_~length1~0 < 1); 168#L532-2 assume !(main_~length2~0 < 1); 162#L535-1 call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call main_#t~malloc16.base, main_#t~malloc16.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc16.base, main_#t~malloc16.offset;main_~i~0 := 0; 163#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 158#L541-4 main_~i~1 := 0; 159#L546-3 [2019-12-07 18:32:16,678 INFO L796 eck$LassoCheckResult]: Loop: 159#L546-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet20, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet20; 164#L546-2 main_#t~post19 := main_~i~1;main_~i~1 := 1 + main_#t~post19;havoc main_#t~post19; 159#L546-3 [2019-12-07 18:32:16,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:16,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-12-07 18:32:16,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:16,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133160130] [2019-12-07 18:32:16,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:16,694 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:16,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:16,695 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-12-07 18:32:16,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:16,695 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554390425] [2019-12-07 18:32:16,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:16,703 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:16,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:16,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2019-12-07 18:32:16,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:16,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573170500] [2019-12-07 18:32:16,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:16,724 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:16,882 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:32:16,883 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:32:16,883 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:32:16,883 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:32:16,883 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:32:16,883 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:16,883 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:32:16,883 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:32:16,883 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncmp-alloca-1.i_Iteration2_Lasso [2019-12-07 18:32:16,883 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:32:16,884 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:32:16,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:16,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:17,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:17,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:17,158 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:32:17,158 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,162 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:17,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:17,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:17,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:17,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:17,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:17,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:17,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:17,165 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:17,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:17,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:17,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:17,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:17,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:17,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:17,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:17,172 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:17,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:17,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:17,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:17,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:17,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:17,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:17,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:17,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:17,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:17,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:17,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:17,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:17,186 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:17,187 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:17,191 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:17,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:17,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:17,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:17,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:17,203 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:17,203 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:17,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:17,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:17,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:17,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:17,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:17,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:17,216 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:17,220 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:17,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:17,225 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:17,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:17,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:17,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:17,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:17,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:17,226 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:17,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:17,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:17,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:17,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:17,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:17,235 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:17,238 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,242 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:17,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:17,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:17,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:17,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:17,245 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:17,245 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:17,247 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:17,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:17,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:17,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:17,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:17,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:17,253 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:17,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:17,254 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:17,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:17,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:17,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:17,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:17,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:17,262 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:17,266 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:17,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:17,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:17,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:17,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:17,275 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:17,275 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:17,284 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:32:17,297 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-12-07 18:32:17,298 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:17,300 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:32:17,302 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:32:17,303 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:32:17,303 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2019-12-07 18:32:17,318 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-12-07 18:32:17,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:32:17,334 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:32:17,334 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:32:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:32:17,339 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:32:17,339 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:32:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:32:17,346 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:32:17,347 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-12-07 18:32:17,361 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 27 states and 40 transitions. Complement of second has 6 states. [2019-12-07 18:32:17,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:32:17,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:32:17,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2019-12-07 18:32:17,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 18:32:17,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:32:17,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 18:32:17,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:32:17,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 7 letters. Loop has 4 letters. [2019-12-07 18:32:17,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:32:17,363 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 40 transitions. [2019-12-07 18:32:17,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:32:17,366 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 19 states and 27 transitions. [2019-12-07 18:32:17,366 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-12-07 18:32:17,366 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-12-07 18:32:17,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 27 transitions. [2019-12-07 18:32:17,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:32:17,366 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2019-12-07 18:32:17,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 27 transitions. [2019-12-07 18:32:17,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 18:32:17,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 18:32:17,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2019-12-07 18:32:17,369 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2019-12-07 18:32:17,369 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2019-12-07 18:32:17,369 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:32:17,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2019-12-07 18:32:17,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:32:17,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:32:17,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:32:17,370 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:32:17,370 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 18:32:17,371 INFO L794 eck$LassoCheckResult]: Stem: 290#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 286#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~malloc16.base, main_#t~malloc16.offset, main_#t~nondet18, main_#t~post17, main_~i~0, main_#t~nondet20, main_#t~post19, main_~i~1, main_#t~nondet21, main_#t~ret22, 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~nondet13;havoc main_#t~nondet13;main_~length2~0 := main_#t~nondet14;havoc main_#t~nondet14; 287#L532 assume !(main_~length1~0 < 1); 288#L532-2 assume !(main_~length2~0 < 1); 281#L535-1 call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call main_#t~malloc16.base, main_#t~malloc16.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc16.base, main_#t~malloc16.offset;main_~i~0 := 0; 282#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 277#L541-4 main_~i~1 := 0; 278#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 285#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet21;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~short7, cstrncmp_#t~post8.base, cstrncmp_#t~post8.offset, cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, cstrncmp_#t~post2, cstrncmp_#t~mem3, cstrncmp_#t~mem4, cstrncmp_#t~short5, cstrncmp_#t~mem10, cstrncmp_#t~mem11, cstrncmp_#t~ite12, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n, cstrncmp_~uc1~0, cstrncmp_~uc2~0;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n;havoc cstrncmp_~uc1~0;havoc cstrncmp_~uc2~0; 289#L517 assume !(0 == cstrncmp_~n); 279#L519-5 [2019-12-07 18:32:17,371 INFO L796 eck$LassoCheckResult]: Loop: 279#L519-5 cstrncmp_#t~post2 := cstrncmp_~n;cstrncmp_~n := cstrncmp_#t~post2 - 1;cstrncmp_#t~short5 := cstrncmp_#t~post2 > 0; 280#L519-1 assume cstrncmp_#t~short5;call cstrncmp_#t~mem3 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);call cstrncmp_#t~mem4 := read~int(cstrncmp_~s2.base, cstrncmp_~s2.offset, 1);cstrncmp_#t~short5 := cstrncmp_#t~mem3 == cstrncmp_#t~mem4; 275#L519-3 assume !!cstrncmp_#t~short5;havoc cstrncmp_#t~short5;havoc cstrncmp_#t~mem3;havoc cstrncmp_#t~mem4;havoc cstrncmp_#t~post2;cstrncmp_#t~short7 := 0 == cstrncmp_~n; 276#L520 assume cstrncmp_#t~short7; 291#L520-2 assume !cstrncmp_#t~short7;havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~short7;cstrncmp_#t~post8.base, cstrncmp_#t~post8.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post8.base, 1 + cstrncmp_#t~post8.offset;havoc cstrncmp_#t~post8.base, cstrncmp_#t~post8.offset;cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post9.base, 1 + cstrncmp_#t~post9.offset;havoc cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset; 279#L519-5 [2019-12-07 18:32:17,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:17,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1595220890, now seen corresponding path program 1 times [2019-12-07 18:32:17,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:17,372 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530330186] [2019-12-07 18:32:17,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:17,401 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:17,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:17,402 INFO L82 PathProgramCache]: Analyzing trace with hash 79307716, now seen corresponding path program 1 times [2019-12-07 18:32:17,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:17,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827875065] [2019-12-07 18:32:17,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:32:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:32:17,425 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827875065] [2019-12-07 18:32:17,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:32:17,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:32:17,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776774505] [2019-12-07 18:32:17,428 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 18:32:17,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:32:17,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:32:17,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:32:17,430 INFO L87 Difference]: Start difference. First operand 19 states and 27 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-12-07 18:32:17,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:32:17,440 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2019-12-07 18:32:17,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:32:17,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2019-12-07 18:32:17,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:32:17,441 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 26 transitions. [2019-12-07 18:32:17,441 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-12-07 18:32:17,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-12-07 18:32:17,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2019-12-07 18:32:17,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:32:17,442 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-12-07 18:32:17,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2019-12-07 18:32:17,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 18:32:17,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 18:32:17,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2019-12-07 18:32:17,443 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-12-07 18:32:17,443 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-12-07 18:32:17,444 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 18:32:17,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2019-12-07 18:32:17,444 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:32:17,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:32:17,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:32:17,445 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:32:17,445 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 18:32:17,445 INFO L794 eck$LassoCheckResult]: Stem: 335#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 331#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~malloc16.base, main_#t~malloc16.offset, main_#t~nondet18, main_#t~post17, main_~i~0, main_#t~nondet20, main_#t~post19, main_~i~1, main_#t~nondet21, main_#t~ret22, 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~nondet13;havoc main_#t~nondet13;main_~length2~0 := main_#t~nondet14;havoc main_#t~nondet14; 332#L532 assume !(main_~length1~0 < 1); 333#L532-2 assume !(main_~length2~0 < 1); 326#L535-1 call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call main_#t~malloc16.base, main_#t~malloc16.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc16.base, main_#t~malloc16.offset;main_~i~0 := 0; 327#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 322#L541-4 main_~i~1 := 0; 323#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 330#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet21;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~short7, cstrncmp_#t~post8.base, cstrncmp_#t~post8.offset, cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, cstrncmp_#t~post2, cstrncmp_#t~mem3, cstrncmp_#t~mem4, cstrncmp_#t~short5, cstrncmp_#t~mem10, cstrncmp_#t~mem11, cstrncmp_#t~ite12, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n, cstrncmp_~uc1~0, cstrncmp_~uc2~0;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n;havoc cstrncmp_~uc1~0;havoc cstrncmp_~uc2~0; 334#L517 assume !(0 == cstrncmp_~n); 324#L519-5 [2019-12-07 18:32:17,445 INFO L796 eck$LassoCheckResult]: Loop: 324#L519-5 cstrncmp_#t~post2 := cstrncmp_~n;cstrncmp_~n := cstrncmp_#t~post2 - 1;cstrncmp_#t~short5 := cstrncmp_#t~post2 > 0; 325#L519-1 assume cstrncmp_#t~short5;call cstrncmp_#t~mem3 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);call cstrncmp_#t~mem4 := read~int(cstrncmp_~s2.base, cstrncmp_~s2.offset, 1);cstrncmp_#t~short5 := cstrncmp_#t~mem3 == cstrncmp_#t~mem4; 320#L519-3 assume !!cstrncmp_#t~short5;havoc cstrncmp_#t~short5;havoc cstrncmp_#t~mem3;havoc cstrncmp_#t~mem4;havoc cstrncmp_#t~post2;cstrncmp_#t~short7 := 0 == cstrncmp_~n; 321#L520 assume !cstrncmp_#t~short7;call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~short7 := 0 == cstrncmp_#t~mem6; 336#L520-2 assume !cstrncmp_#t~short7;havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~short7;cstrncmp_#t~post8.base, cstrncmp_#t~post8.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post8.base, 1 + cstrncmp_#t~post8.offset;havoc cstrncmp_#t~post8.base, cstrncmp_#t~post8.offset;cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post9.base, 1 + cstrncmp_#t~post9.offset;havoc cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset; 324#L519-5 [2019-12-07 18:32:17,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:17,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1595220890, now seen corresponding path program 2 times [2019-12-07 18:32:17,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:17,445 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761092582] [2019-12-07 18:32:17,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:17,464 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:17,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:17,464 INFO L82 PathProgramCache]: Analyzing trace with hash 79307778, now seen corresponding path program 1 times [2019-12-07 18:32:17,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:17,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636484899] [2019-12-07 18:32:17,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:17,474 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:17,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:17,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1988601847, now seen corresponding path program 1 times [2019-12-07 18:32:17,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:17,475 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288643670] [2019-12-07 18:32:17,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:32:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:32:17,569 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288643670] [2019-12-07 18:32:17,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:32:17,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 18:32:17,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760769916] [2019-12-07 18:32:17,685 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2019-12-07 18:32:17,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:32:17,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:32:17,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:32:17,716 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand 7 states. [2019-12-07 18:32:17,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:32:17,770 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2019-12-07 18:32:17,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:32:17,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 40 transitions. [2019-12-07 18:32:17,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:32:17,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 20 states and 26 transitions. [2019-12-07 18:32:17,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-12-07 18:32:17,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-12-07 18:32:17,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2019-12-07 18:32:17,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:32:17,772 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-12-07 18:32:17,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2019-12-07 18:32:17,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-12-07 18:32:17,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 18:32:17,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-12-07 18:32:17,773 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-07 18:32:17,773 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-07 18:32:17,773 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 18:32:17,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2019-12-07 18:32:17,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:32:17,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:32:17,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:32:17,774 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:32:17,774 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 18:32:17,774 INFO L794 eck$LassoCheckResult]: Stem: 401#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 397#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~malloc16.base, main_#t~malloc16.offset, main_#t~nondet18, main_#t~post17, main_~i~0, main_#t~nondet20, main_#t~post19, main_~i~1, main_#t~nondet21, main_#t~ret22, 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~nondet13;havoc main_#t~nondet13;main_~length2~0 := main_#t~nondet14;havoc main_#t~nondet14; 398#L532 assume !(main_~length1~0 < 1); 399#L532-2 assume !(main_~length2~0 < 1); 392#L535-1 call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call main_#t~malloc16.base, main_#t~malloc16.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc16.base, main_#t~malloc16.offset;main_~i~0 := 0; 393#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet18, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet18; 403#L541-2 main_#t~post17 := main_~i~0;main_~i~0 := 1 + main_#t~post17;havoc main_#t~post17; 404#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 388#L541-4 main_~i~1 := 0; 389#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 396#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet21;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~short7, cstrncmp_#t~post8.base, cstrncmp_#t~post8.offset, cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, cstrncmp_#t~post2, cstrncmp_#t~mem3, cstrncmp_#t~mem4, cstrncmp_#t~short5, cstrncmp_#t~mem10, cstrncmp_#t~mem11, cstrncmp_#t~ite12, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n, cstrncmp_~uc1~0, cstrncmp_~uc2~0;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n;havoc cstrncmp_~uc1~0;havoc cstrncmp_~uc2~0; 400#L517 assume !(0 == cstrncmp_~n); 390#L519-5 [2019-12-07 18:32:17,774 INFO L796 eck$LassoCheckResult]: Loop: 390#L519-5 cstrncmp_#t~post2 := cstrncmp_~n;cstrncmp_~n := cstrncmp_#t~post2 - 1;cstrncmp_#t~short5 := cstrncmp_#t~post2 > 0; 391#L519-1 assume cstrncmp_#t~short5;call cstrncmp_#t~mem3 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);call cstrncmp_#t~mem4 := read~int(cstrncmp_~s2.base, cstrncmp_~s2.offset, 1);cstrncmp_#t~short5 := cstrncmp_#t~mem3 == cstrncmp_#t~mem4; 386#L519-3 assume !!cstrncmp_#t~short5;havoc cstrncmp_#t~short5;havoc cstrncmp_#t~mem3;havoc cstrncmp_#t~mem4;havoc cstrncmp_#t~post2;cstrncmp_#t~short7 := 0 == cstrncmp_~n; 387#L520 assume !cstrncmp_#t~short7;call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~short7 := 0 == cstrncmp_#t~mem6; 402#L520-2 assume !cstrncmp_#t~short7;havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~short7;cstrncmp_#t~post8.base, cstrncmp_#t~post8.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post8.base, 1 + cstrncmp_#t~post8.offset;havoc cstrncmp_#t~post8.base, cstrncmp_#t~post8.offset;cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post9.base, 1 + cstrncmp_#t~post9.offset;havoc cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset; 390#L519-5 [2019-12-07 18:32:17,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:17,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1351083896, now seen corresponding path program 1 times [2019-12-07 18:32:17,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:17,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499968183] [2019-12-07 18:32:17,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:17,791 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:17,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:17,792 INFO L82 PathProgramCache]: Analyzing trace with hash 79307778, now seen corresponding path program 2 times [2019-12-07 18:32:17,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:17,792 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139494342] [2019-12-07 18:32:17,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:17,800 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:17,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:17,801 INFO L82 PathProgramCache]: Analyzing trace with hash -350531861, now seen corresponding path program 1 times [2019-12-07 18:32:17,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:17,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812230340] [2019-12-07 18:32:17,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:32:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:32:17,881 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812230340] [2019-12-07 18:32:17,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:32:17,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-12-07 18:32:17,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030510959] [2019-12-07 18:32:17,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:32:17,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:32:17,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:32:17,995 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. cyclomatic complexity: 9 Second operand 10 states. [2019-12-07 18:32:18,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:32:18,113 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2019-12-07 18:32:18,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 18:32:18,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2019-12-07 18:32:18,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:32:18,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 20 states and 24 transitions. [2019-12-07 18:32:18,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-12-07 18:32:18,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-12-07 18:32:18,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2019-12-07 18:32:18,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:32:18,114 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-12-07 18:32:18,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2019-12-07 18:32:18,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-12-07 18:32:18,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 18:32:18,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-12-07 18:32:18,116 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-12-07 18:32:18,116 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-12-07 18:32:18,116 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 18:32:18,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2019-12-07 18:32:18,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:32:18,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:32:18,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:32:18,117 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:32:18,117 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 18:32:18,117 INFO L794 eck$LassoCheckResult]: Stem: 481#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 477#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~malloc16.base, main_#t~malloc16.offset, main_#t~nondet18, main_#t~post17, main_~i~0, main_#t~nondet20, main_#t~post19, main_~i~1, main_#t~nondet21, main_#t~ret22, 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~nondet13;havoc main_#t~nondet13;main_~length2~0 := main_#t~nondet14;havoc main_#t~nondet14; 478#L532 assume !(main_~length1~0 < 1); 479#L532-2 assume !(main_~length2~0 < 1); 472#L535-1 call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call main_#t~malloc16.base, main_#t~malloc16.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc16.base, main_#t~malloc16.offset;main_~i~0 := 0; 473#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet18, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet18; 483#L541-2 main_#t~post17 := main_~i~0;main_~i~0 := 1 + main_#t~post17;havoc main_#t~post17; 484#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 468#L541-4 main_~i~1 := 0; 469#L546-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet20, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet20; 474#L546-2 main_#t~post19 := main_~i~1;main_~i~1 := 1 + main_#t~post19;havoc main_#t~post19; 475#L546-3 assume !(main_~i~1 < main_~length2~0 - 1); 476#L546-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet21;havoc cstrncmp_#res;havoc cstrncmp_#t~mem6, cstrncmp_#t~short7, cstrncmp_#t~post8.base, cstrncmp_#t~post8.offset, cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, cstrncmp_#t~post2, cstrncmp_#t~mem3, cstrncmp_#t~mem4, cstrncmp_#t~short5, cstrncmp_#t~mem10, cstrncmp_#t~mem11, cstrncmp_#t~ite12, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n, cstrncmp_~uc1~0, cstrncmp_~uc2~0;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n;havoc cstrncmp_~uc1~0;havoc cstrncmp_~uc2~0; 480#L517 assume !(0 == cstrncmp_~n); 470#L519-5 [2019-12-07 18:32:18,117 INFO L796 eck$LassoCheckResult]: Loop: 470#L519-5 cstrncmp_#t~post2 := cstrncmp_~n;cstrncmp_~n := cstrncmp_#t~post2 - 1;cstrncmp_#t~short5 := cstrncmp_#t~post2 > 0; 471#L519-1 assume cstrncmp_#t~short5;call cstrncmp_#t~mem3 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);call cstrncmp_#t~mem4 := read~int(cstrncmp_~s2.base, cstrncmp_~s2.offset, 1);cstrncmp_#t~short5 := cstrncmp_#t~mem3 == cstrncmp_#t~mem4; 466#L519-3 assume !!cstrncmp_#t~short5;havoc cstrncmp_#t~short5;havoc cstrncmp_#t~mem3;havoc cstrncmp_#t~mem4;havoc cstrncmp_#t~post2;cstrncmp_#t~short7 := 0 == cstrncmp_~n; 467#L520 assume !cstrncmp_#t~short7;call cstrncmp_#t~mem6 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~short7 := 0 == cstrncmp_#t~mem6; 482#L520-2 assume !cstrncmp_#t~short7;havoc cstrncmp_#t~mem6;havoc cstrncmp_#t~short7;cstrncmp_#t~post8.base, cstrncmp_#t~post8.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post8.base, 1 + cstrncmp_#t~post8.offset;havoc cstrncmp_#t~post8.base, cstrncmp_#t~post8.offset;cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post9.base, 1 + cstrncmp_#t~post9.offset;havoc cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset; 470#L519-5 [2019-12-07 18:32:18,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:18,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1313217430, now seen corresponding path program 1 times [2019-12-07 18:32:18,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:18,117 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757132608] [2019-12-07 18:32:18,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:18,142 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:18,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:18,143 INFO L82 PathProgramCache]: Analyzing trace with hash 79307778, now seen corresponding path program 3 times [2019-12-07 18:32:18,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:18,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979119846] [2019-12-07 18:32:18,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:18,154 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:18,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:18,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1018233459, now seen corresponding path program 1 times [2019-12-07 18:32:18,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:18,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903761087] [2019-12-07 18:32:18,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:18,178 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:18,688 WARN L192 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 118 [2019-12-07 18:32:18,829 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-12-07 18:32:18,831 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:32:18,831 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:32:18,831 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:32:18,831 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:32:18,831 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:32:18,831 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:18,831 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:32:18,831 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:32:18,831 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncmp-alloca-1.i_Iteration6_Lasso [2019-12-07 18:32:18,831 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:32:18,831 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:32:18,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:18,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:18,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:18,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:18,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:18,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:18,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:18,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:18,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:18,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:18,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:18,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,260 WARN L192 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2019-12-07 18:32:19,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:32:19,544 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-12-07 18:32:19,884 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:32:19,885 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,889 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:19,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:19,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:19,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,895 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:19,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,897 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:19,897 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:19,898 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:19,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:19,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:19,905 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,909 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:19,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:19,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:19,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,917 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:19,919 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:19,922 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:19,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:19,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:19,930 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:19,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,938 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:19,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:19,939 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:19,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:19,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:19,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,950 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:19,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:19,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:19,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,959 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:19,959 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:19,961 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:32:19,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:32:19,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:32:19,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:19,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:19,978 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,981 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:19,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:19,983 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:19,986 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:19,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:32:19,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:32:19,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:32:19,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:32:19,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:32:20,000 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:32:20,000 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:32:20,027 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:32:20,059 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-12-07 18:32:20,059 INFO L444 ModelExtractionUtils]: 15 out of 52 variables were initially zero. Simplification set additionally 34 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e21855-cb91-429f-9cee-718af7804377/bin/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:20,062 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:32:20,063 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:32:20,064 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:32:20,064 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2, ULTIMATE.start_cstrncmp_~s1.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 - 1*ULTIMATE.start_cstrncmp_~s1.offset Supporting invariants [] [2019-12-07 18:32:20,134 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2019-12-07 18:32:20,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 18:32:20,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:32:20,169 INFO L264 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:32:20,170 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:32:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:32:20,178 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:32:20,178 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:32:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:32:20,190 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 18:32:20,190 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7 Second operand 5 states. [2019-12-07 18:32:20,213 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7. Second operand 5 states. Result 24 states and 29 transitions. Complement of second has 7 states. [2019-12-07 18:32:20,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:32:20,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 18:32:20,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-12-07 18:32:20,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 14 letters. Loop has 5 letters. [2019-12-07 18:32:20,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:32:20,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 19 letters. Loop has 5 letters. [2019-12-07 18:32:20,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:32:20,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 14 letters. Loop has 10 letters. [2019-12-07 18:32:20,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:32:20,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2019-12-07 18:32:20,215 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:32:20,215 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2019-12-07 18:32:20,215 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:32:20,215 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:32:20,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:32:20,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:32:20,215 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:32:20,215 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:32:20,215 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:32:20,215 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 18:32:20,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:32:20,216 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:32:20,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:32:20,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:32:20 BoogieIcfgContainer [2019-12-07 18:32:20,220 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:32:20,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:32:20,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:32:20,220 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:32:20,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:32:15" (3/4) ... [2019-12-07 18:32:20,223 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:32:20,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:32:20,224 INFO L168 Benchmark]: Toolchain (without parser) took 5211.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 204.5 MB). Free memory was 934.0 MB in the beginning and 1.2 GB in the end (delta: -245.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:32:20,224 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:32:20,224 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:32:20,225 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:32:20,225 INFO L168 Benchmark]: Boogie Preprocessor took 19.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:32:20,225 INFO L168 Benchmark]: RCFGBuilder took 224.02 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:32:20,226 INFO L168 Benchmark]: BuchiAutomizer took 4629.06 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 108.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -128.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:32:20,226 INFO L168 Benchmark]: Witness Printer took 2.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:32:20,227 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 301.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.71 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 224.02 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4629.06 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 108.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -128.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 2.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + length2 and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * s1 and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 117 SDtfs, 191 SDslu, 191 SDs, 0 SdLazy, 124 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital208 mio100 ax110 hnf98 lsp82 ukn74 mio100 lsp50 div100 bol100 ite100 ukn100 eq176 hnf90 smp99 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...