./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstpncpy-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstpncpy-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 ccd9175bc78e257bbf4cf5a6f64f3805ac593d6c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:09:24,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:09:24,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:09:24,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:09:24,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:09:24,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:09:24,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:09:24,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:09:24,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:09:24,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:09:24,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:09:24,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:09:24,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:09:24,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:09:24,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:09:24,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:09:24,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:09:24,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:09:24,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:09:24,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:09:24,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:09:24,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:09:24,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:09:24,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:09:24,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:09:24,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:09:24,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:09:24,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:09:24,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:09:24,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:09:24,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:09:24,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:09:24,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:09:24,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:09:24,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:09:24,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:09:24,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:09:24,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:09:24,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:09:24,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:09:24,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:09:24,533 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 22:09:24,560 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:09:24,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:09:24,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:09:24,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:09:24,564 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:09:24,564 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:09:24,564 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:09:24,565 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:09:24,565 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:09:24,565 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:09:24,566 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:09:24,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:09:24,567 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:09:24,567 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:09:24,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:09:24,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:09:24,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:09:24,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:09:24,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:09:24,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:09:24,569 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:09:24,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:09:24,570 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:09:24,570 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:09:24,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:09:24,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:09:24,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:09:24,571 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:09:24,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:09:24,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:09:24,572 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:09:24,572 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:09:24,573 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_02270dcd-12e7-43de-afeb-639f7ea12d53/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 -> ccd9175bc78e257bbf4cf5a6f64f3805ac593d6c [2019-11-19 22:09:24,705 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:09:24,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:09:24,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:09:24,723 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:09:24,723 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:09:24,724 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstpncpy-alloca-1.i [2019-11-19 22:09:24,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/data/54adeec3a/dc60add43b2e48feba3332134b0b0a95/FLAGc9af29267 [2019-11-19 22:09:25,245 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:09:25,246 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/sv-benchmarks/c/array-memsafety/openbsd_cstpncpy-alloca-1.i [2019-11-19 22:09:25,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/data/54adeec3a/dc60add43b2e48feba3332134b0b0a95/FLAGc9af29267 [2019-11-19 22:09:25,742 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/data/54adeec3a/dc60add43b2e48feba3332134b0b0a95 [2019-11-19 22:09:25,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:09:25,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:09:25,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:09:25,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:09:25,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:09:25,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:09:25" (1/1) ... [2019-11-19 22:09:25,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d37a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:25, skipping insertion in model container [2019-11-19 22:09:25,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:09:25" (1/1) ... [2019-11-19 22:09:25,759 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:09:25,810 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:09:26,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:09:26,166 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:09:26,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:09:26,287 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:09:26,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:26 WrapperNode [2019-11-19 22:09:26,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:09:26,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:09:26,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:09:26,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:09:26,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:26" (1/1) ... [2019-11-19 22:09:26,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:26" (1/1) ... [2019-11-19 22:09:26,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:09:26,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:09:26,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:09:26,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:09:26,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:26" (1/1) ... [2019-11-19 22:09:26,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:26" (1/1) ... [2019-11-19 22:09:26,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:26" (1/1) ... [2019-11-19 22:09:26,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:26" (1/1) ... [2019-11-19 22:09:26,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:26" (1/1) ... [2019-11-19 22:09:26,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:26" (1/1) ... [2019-11-19 22:09:26,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:26" (1/1) ... [2019-11-19 22:09:26,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:09:26,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:09:26,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:09:26,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:09:26,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:09:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 22:09:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 22:09:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-19 22:09:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:09:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-19 22:09:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:09:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:09:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:09:26,734 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:09:26,735 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-19 22:09:26,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:09:26 BoogieIcfgContainer [2019-11-19 22:09:26,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:09:26,736 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:09:26,737 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:09:26,740 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:09:26,740 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:09:26,741 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:09:25" (1/3) ... [2019-11-19 22:09:26,741 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@402dad75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:09:26, skipping insertion in model container [2019-11-19 22:09:26,742 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:09:26,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:09:26" (2/3) ... [2019-11-19 22:09:26,742 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@402dad75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:09:26, skipping insertion in model container [2019-11-19 22:09:26,742 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:09:26,743 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:09:26" (3/3) ... [2019-11-19 22:09:26,744 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstpncpy-alloca-1.i [2019-11-19 22:09:26,786 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:09:26,786 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:09:26,786 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:09:26,786 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:09:26,786 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:09:26,787 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:09:26,787 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:09:26,787 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:09:26,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2019-11-19 22:09:26,815 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 22:09:26,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:09:26,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:09:26,820 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 22:09:26,820 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:09:26,820 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:09:26,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2019-11-19 22:09:26,822 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 22:09:26,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:09:26,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:09:26,823 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 22:09:26,823 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:09:26,829 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~ret17.base, main_#t~ret17.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 7#L534true assume !(main_~length~0 < 1); 10#L534-2true assume !(main_~n~0 < 1); 6#L537-1true call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 16#L543-3true [2019-11-19 22:09:26,829 INFO L796 eck$LassoCheckResult]: Loop: 16#L543-3true assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet16, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 14#L543-2true main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 16#L543-3true [2019-11-19 22:09:26,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:09:26,833 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-19 22:09:26,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:09:26,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656073783] [2019-11-19 22:09:26,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:09:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:26,953 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:09:26,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:09:26,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-11-19 22:09:26,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:09:26,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438518324] [2019-11-19 22:09:26,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:09:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:26,977 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:09:26,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:09:26,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-11-19 22:09:26,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:09:26,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090848311] [2019-11-19 22:09:26,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:09:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:27,020 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:09:27,293 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-11-19 22:09:27,387 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:09:27,388 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:09:27,388 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:09:27,388 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:09:27,388 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:09:27,389 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:09:27,389 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:09:27,389 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:09:27,389 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpncpy-alloca-1.i_Iteration1_Lasso [2019-11-19 22:09:27,389 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:09:27,390 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:09:27,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,619 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2019-11-19 22:09:27,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:09:27,996 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:09:28,003 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:09:28,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:09:28,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:09:28,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:09:28,030 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:09:28,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:09:28,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:09:28,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:09:28,061 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:09:28,071 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:09:28,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:09:28,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:09:28,077 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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) [2019-11-19 22:09:28,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:09:28,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:09:28,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:09:28,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:09:28,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,127 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:09:28,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:09:28,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:09:28,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,153 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:09:28,154 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:09:28,158 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:09:28,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:09:28,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:09:28,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:09:28,182 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:09:28,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:09:28,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:09:28,212 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:09:28,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:09:28,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:09:28,234 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:09:28,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:09:28,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:09:28,268 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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) [2019-11-19 22:09:28,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,295 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:09:28,295 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:09:28,302 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:09:28,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:09:28,320 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:09:28,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:09:28,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:09:28,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:09:28,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:09:28,344 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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) [2019-11-19 22:09:28,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:09:28,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:09:28,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:09:28,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:09:28,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:09:28,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:09:28,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:09:28,396 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:09:28,558 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-11-19 22:09:28,558 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:09:28,566 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:09:28,569 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 22:09:28,569 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:09:28,570 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2019-11-19 22:09:28,588 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-11-19 22:09:28,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:09:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:09:28,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:09:28,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:09:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:09:28,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:09:28,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:09:28,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:09:28,693 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 [2019-11-19 22:09:28,695 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states. Second operand 3 states. [2019-11-19 22:09:28,760 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states.. Second operand 3 states. Result 48 states and 70 transitions. Complement of second has 7 states. [2019-11-19 22:09:28,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:09:28,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:09:28,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2019-11-19 22:09:28,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-19 22:09:28,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:09:28,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-19 22:09:28,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:09:28,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-19 22:09:28,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:09:28,766 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 70 transitions. [2019-11-19 22:09:28,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-19 22:09:28,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 16 states and 21 transitions. [2019-11-19 22:09:28,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-19 22:09:28,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-19 22:09:28,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2019-11-19 22:09:28,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:09:28,776 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2019-11-19 22:09:28,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2019-11-19 22:09:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-19 22:09:28,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-19 22:09:28,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2019-11-19 22:09:28,796 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2019-11-19 22:09:28,796 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2019-11-19 22:09:28,796 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:09:28,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2019-11-19 22:09:28,797 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-19 22:09:28,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:09:28,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:09:28,798 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:09:28,798 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:09:28,798 INFO L794 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 149#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~ret17.base, main_#t~ret17.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 145#L534 assume !(main_~length~0 < 1); 146#L534-2 assume !(main_~n~0 < 1); 143#L537-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 144#L543-3 assume !(main_~i~0 < main_~length~0 - 1); 155#L543-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstpncpy_#in~dst.base, cstpncpy_#in~dst.offset, cstpncpy_#in~src.base, cstpncpy_#in~src.offset, cstpncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstpncpy_#res.base, cstpncpy_#res.offset;havoc cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset, cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset, cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset, cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset, cstpncpy_#t~mem7, cstpncpy_#t~post9.base, cstpncpy_#t~post9.offset, cstpncpy_#t~pre8, cstpncpy_#t~pre4, cstpncpy_~d~0.base, cstpncpy_~d~0.offset, cstpncpy_~s~0.base, cstpncpy_~s~0.offset, cstpncpy_#t~mem10.base, cstpncpy_#t~mem10.offset, cstpncpy_~#dst.base, cstpncpy_~#dst.offset, cstpncpy_~src.base, cstpncpy_~src.offset, cstpncpy_~n;call cstpncpy_~#dst.base, cstpncpy_~#dst.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(cstpncpy_#in~dst.base, cstpncpy_#in~dst.offset, cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);cstpncpy_~src.base, cstpncpy_~src.offset := cstpncpy_#in~src.base, cstpncpy_#in~src.offset;cstpncpy_~n := cstpncpy_#in~n; 140#L516 assume 0 != cstpncpy_~n % 4294967296;call cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset := read~$Pointer$(cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);cstpncpy_~d~0.base, cstpncpy_~d~0.offset := cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset;havoc cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset;cstpncpy_~s~0.base, cstpncpy_~s~0.offset := cstpncpy_~src.base, cstpncpy_~src.offset;call cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset := read~$Pointer$(cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);call write~$Pointer$(cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset + (if cstpncpy_~n % 4294967296 % 4294967296 <= 2147483647 then cstpncpy_~n % 4294967296 % 4294967296 else cstpncpy_~n % 4294967296 % 4294967296 - 4294967296), cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);havoc cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset; 141#L520-4 [2019-11-19 22:09:28,799 INFO L796 eck$LassoCheckResult]: Loop: 141#L520-4 cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset := cstpncpy_~d~0.base, cstpncpy_~d~0.offset;cstpncpy_~d~0.base, cstpncpy_~d~0.offset := cstpncpy_#t~post5.base, 1 + cstpncpy_#t~post5.offset;cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset := cstpncpy_~s~0.base, cstpncpy_~s~0.offset;cstpncpy_~s~0.base, cstpncpy_~s~0.offset := cstpncpy_#t~post6.base, 1 + cstpncpy_#t~post6.offset;call cstpncpy_#t~mem7 := read~int(cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset, 1);call write~int(cstpncpy_#t~mem7, cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset, 1); 142#L521 assume !(0 == cstpncpy_#t~mem7);havoc cstpncpy_#t~mem7;havoc cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset;havoc cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset; 150#L520-1 cstpncpy_#t~pre4 := cstpncpy_~n - 1;cstpncpy_~n := cstpncpy_~n - 1; 154#L520-2 assume !!(0 != cstpncpy_#t~pre4 % 4294967296);havoc cstpncpy_#t~pre4; 141#L520-4 [2019-11-19 22:09:28,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:09:28,799 INFO L82 PathProgramCache]: Analyzing trace with hash 180430706, now seen corresponding path program 1 times [2019-11-19 22:09:28,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:09:28,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616485151] [2019-11-19 22:09:28,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:09:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:28,878 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:09:28,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:09:28,878 INFO L82 PathProgramCache]: Analyzing trace with hash 2049688, now seen corresponding path program 1 times [2019-11-19 22:09:28,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:09:28,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484897293] [2019-11-19 22:09:28,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:09:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:28,907 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:09:28,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:09:28,907 INFO L82 PathProgramCache]: Analyzing trace with hash -299020919, now seen corresponding path program 1 times [2019-11-19 22:09:28,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:09:28,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444028779] [2019-11-19 22:09:28,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:09:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:09:29,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:09:29,119 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444028779] [2019-11-19 22:09:29,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:09:29,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-19 22:09:29,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067846680] [2019-11-19 22:09:29,234 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-11-19 22:09:29,342 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-11-19 22:09:29,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:09:29,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 22:09:29,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-19 22:09:29,346 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 8 states. [2019-11-19 22:09:29,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:09:29,538 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2019-11-19 22:09:29,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 22:09:29,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2019-11-19 22:09:29,540 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-19 22:09:29,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 28 transitions. [2019-11-19 22:09:29,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-19 22:09:29,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-19 22:09:29,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2019-11-19 22:09:29,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:09:29,542 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2019-11-19 22:09:29,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2019-11-19 22:09:29,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2019-11-19 22:09:29,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-19 22:09:29,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2019-11-19 22:09:29,544 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2019-11-19 22:09:29,544 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2019-11-19 22:09:29,544 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 22:09:29,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2019-11-19 22:09:29,545 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-19 22:09:29,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:09:29,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:09:29,546 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:09:29,546 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:09:29,546 INFO L794 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 207#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~ret17.base, main_#t~ret17.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 203#L534 assume !(main_~length~0 < 1); 204#L534-2 assume !(main_~n~0 < 1); 201#L537-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 202#L543-3 assume !(main_~i~0 < main_~length~0 - 1); 213#L543-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstpncpy_#in~dst.base, cstpncpy_#in~dst.offset, cstpncpy_#in~src.base, cstpncpy_#in~src.offset, cstpncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstpncpy_#res.base, cstpncpy_#res.offset;havoc cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset, cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset, cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset, cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset, cstpncpy_#t~mem7, cstpncpy_#t~post9.base, cstpncpy_#t~post9.offset, cstpncpy_#t~pre8, cstpncpy_#t~pre4, cstpncpy_~d~0.base, cstpncpy_~d~0.offset, cstpncpy_~s~0.base, cstpncpy_~s~0.offset, cstpncpy_#t~mem10.base, cstpncpy_#t~mem10.offset, cstpncpy_~#dst.base, cstpncpy_~#dst.offset, cstpncpy_~src.base, cstpncpy_~src.offset, cstpncpy_~n;call cstpncpy_~#dst.base, cstpncpy_~#dst.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(cstpncpy_#in~dst.base, cstpncpy_#in~dst.offset, cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);cstpncpy_~src.base, cstpncpy_~src.offset := cstpncpy_#in~src.base, cstpncpy_#in~src.offset;cstpncpy_~n := cstpncpy_#in~n; 198#L516 assume 0 != cstpncpy_~n % 4294967296;call cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset := read~$Pointer$(cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);cstpncpy_~d~0.base, cstpncpy_~d~0.offset := cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset;havoc cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset;cstpncpy_~s~0.base, cstpncpy_~s~0.offset := cstpncpy_~src.base, cstpncpy_~src.offset;call cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset := read~$Pointer$(cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);call write~$Pointer$(cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset + (if cstpncpy_~n % 4294967296 % 4294967296 <= 2147483647 then cstpncpy_~n % 4294967296 % 4294967296 else cstpncpy_~n % 4294967296 % 4294967296 - 4294967296), cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);havoc cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset; 199#L520-4 cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset := cstpncpy_~d~0.base, cstpncpy_~d~0.offset;cstpncpy_~d~0.base, cstpncpy_~d~0.offset := cstpncpy_#t~post5.base, 1 + cstpncpy_#t~post5.offset;cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset := cstpncpy_~s~0.base, cstpncpy_~s~0.offset;cstpncpy_~s~0.base, cstpncpy_~s~0.offset := cstpncpy_#t~post6.base, 1 + cstpncpy_#t~post6.offset;call cstpncpy_#t~mem7 := read~int(cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset, 1);call write~int(cstpncpy_#t~mem7, cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset, 1); 200#L521 assume 0 == cstpncpy_#t~mem7;havoc cstpncpy_#t~mem7;havoc cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset;havoc cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset;call write~$Pointer$(cstpncpy_~d~0.base, cstpncpy_~d~0.offset - 1, cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4); 206#L523-3 [2019-11-19 22:09:29,546 INFO L796 eck$LassoCheckResult]: Loop: 206#L523-3 cstpncpy_#t~pre8 := cstpncpy_~n - 1;cstpncpy_~n := cstpncpy_~n - 1; 205#L523-1 assume !!(0 != cstpncpy_#t~pre8 % 4294967296);havoc cstpncpy_#t~pre8;cstpncpy_#t~post9.base, cstpncpy_#t~post9.offset := cstpncpy_~d~0.base, cstpncpy_~d~0.offset;cstpncpy_~d~0.base, cstpncpy_~d~0.offset := cstpncpy_#t~post9.base, 1 + cstpncpy_#t~post9.offset;call write~int(0, cstpncpy_#t~post9.base, cstpncpy_#t~post9.offset, 1);havoc cstpncpy_#t~post9.base, cstpncpy_#t~post9.offset; 206#L523-3 [2019-11-19 22:09:29,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:09:29,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1595217781, now seen corresponding path program 1 times [2019-11-19 22:09:29,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:09:29,547 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756936090] [2019-11-19 22:09:29,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:09:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:29,625 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:09:29,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:09:29,626 INFO L82 PathProgramCache]: Analyzing trace with hash 2374, now seen corresponding path program 1 times [2019-11-19 22:09:29,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:09:29,626 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536473526] [2019-11-19 22:09:29,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:09:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:29,639 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:09:29,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:09:29,640 INFO L82 PathProgramCache]: Analyzing trace with hash -299035718, now seen corresponding path program 1 times [2019-11-19 22:09:29,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:09:29,640 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605856901] [2019-11-19 22:09:29,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:09:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:09:29,763 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:09:34,198 WARN L191 SmtUtils]: Spent 4.35 s on a formula simplification. DAG size of input: 249 DAG size of output: 220 [2019-11-19 22:09:34,244 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_32|, |v_#memory_$Pointer$.base_32|, |v_#memory_int_32|], 4=[|v_#memory_$Pointer$.base_36|, |v_#memory_$Pointer$.offset_36|], 10=[|v_#memory_int_31|]} [2019-11-19 22:09:34,277 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:09:34,303 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:09:45,014 WARN L191 SmtUtils]: Spent 10.71 s on a formula simplification. DAG size of input: 184 DAG size of output: 184 [2019-11-19 22:09:45,014 INFO L567 ElimStorePlain]: treesize reduction 6, result has 99.3 percent of original size [2019-11-19 22:09:45,038 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:09:45,057 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:09:51,067 WARN L191 SmtUtils]: Spent 6.01 s on a formula simplification that was a NOOP. DAG size: 188 [2019-11-19 22:09:51,068 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:09:51,085 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-19 22:09:51,105 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-19 22:09:56,208 WARN L191 SmtUtils]: Spent 5.10 s on a formula simplification that was a NOOP. DAG size: 182 [2019-11-19 22:09:56,208 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:09:56,225 INFO L496 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:09:56,245 INFO L496 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:01,787 WARN L191 SmtUtils]: Spent 5.54 s on a formula simplification that was a NOOP. DAG size: 186 [2019-11-19 22:10:01,787 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:01,801 INFO L496 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:01,826 INFO L496 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:09,110 WARN L191 SmtUtils]: Spent 7.28 s on a formula simplification that was a NOOP. DAG size: 187 [2019-11-19 22:10:09,111 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:09,127 INFO L496 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:09,187 INFO L496 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:19,572 WARN L191 SmtUtils]: Spent 10.38 s on a formula simplification that was a NOOP. DAG size: 196 [2019-11-19 22:10:19,572 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:19,575 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-2 vars, End of recursive call: 10 dim-0 vars, and 2 xjuncts. [2019-11-19 22:10:19,575 INFO L221 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:830, output treesize:1434 [2019-11-19 22:10:30,220 WARN L191 SmtUtils]: Spent 10.64 s on a formula simplification that was a NOOP. DAG size: 196 [2019-11-19 22:10:30,223 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:10:30,223 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:10:30,223 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:10:30,223 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:10:30,224 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:10:30,224 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:10:30,224 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:10:30,224 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:10:30,224 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpncpy-alloca-1.i_Iteration3_Lasso [2019-11-19 22:10:30,224 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:10:30,224 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:10:30,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:30,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:30,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:30,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:30,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:30,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:30,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:30,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:30,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:30,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:31,241 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 20 [2019-11-19 22:10:32,217 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 123 [2019-11-19 22:10:32,395 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-11-19 22:10:32,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:32,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:33,054 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 122 [2019-11-19 22:10:33,180 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-11-19 22:10:33,338 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2019-11-19 22:10:34,157 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2019-11-19 22:10:34,374 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:10:34,374 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:10:34,387 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:10:34,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:10:34,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:10:34,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:10:34,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:10:34,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:10:34,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:10:34,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:10:34,392 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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) [2019-11-19 22:10:34,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:10:34,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:10:34,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:10:34,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:10:34,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:10:34,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:10:34,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:10:34,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:10:34,415 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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) [2019-11-19 22:10:34,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:10:34,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:10:34,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:10:34,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:10:34,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:10:34,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:10:34,433 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:10:34,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:10:34,435 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:10:34,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:10:34,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:10:34,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:10:34,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:10:34,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:10:34,450 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:10:34,450 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:10:34,454 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:10:34,467 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:10:34,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:10:34,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:10:34,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:10:34,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:10:34,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:10:34,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:10:34,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:10:34,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:10:34,475 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 [2019-11-19 22:10:34,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:10:34,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:10:34,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:10:34,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:10:34,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:10:34,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:10:34,482 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:10:34,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:10:34,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:10:34,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:10:34,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:10:34,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:10:34,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:10:34,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:10:34,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:10:34,494 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:10:34,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:10:34,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:10:34,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:10:34,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:10:34,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:10:34,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:10:34,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:10:34,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:10:34,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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) [2019-11-19 22:10:34,523 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 Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:10:34,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:10:34,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:10:34,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:10:34,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:10:34,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:10:34,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:10:34,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:10:34,526 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:10:34,530 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:10:34,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:10:34,533 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-19 22:10:34,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:10:34,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:10:34,562 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-19 22:10:34,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:10:34,616 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:10:34,695 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-19 22:10:34,695 INFO L444 ModelExtractionUtils]: 46 out of 76 variables were initially zero. Simplification set additionally 27 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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) [2019-11-19 22:10:34,703 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:10:34,707 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 22:10:34,707 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:10:34,707 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2, ULTIMATE.start_cstpncpy_~d~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2 - 1*ULTIMATE.start_cstpncpy_~d~0.offset Supporting invariants [] [2019-11-19 22:10:34,811 INFO L297 tatePredicateManager]: 19 out of 20 supporting invariants were superfluous and have been removed [2019-11-19 22:10:34,813 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 22:10:34,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:10:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:10:34,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-19 22:10:34,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:10:34,882 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-19 22:10:34,882 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 22:10:34,887 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:34,887 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 22:10:34,887 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-11-19 22:10:34,913 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-19 22:10:34,913 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 22:10:34,919 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:34,920 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 22:10:34,920 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:5 [2019-11-19 22:10:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:10:34,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 22:10:34,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:10:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:10:34,927 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 1 loop predicates [2019-11-19 22:10:34,927 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand 6 states. [2019-11-19 22:10:35,044 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8. Second operand 6 states. Result 23 states and 29 transitions. Complement of second has 8 states. [2019-11-19 22:10:35,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 5 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:10:35,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-19 22:10:35,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2019-11-19 22:10:35,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 10 letters. Loop has 2 letters. [2019-11-19 22:10:35,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:10:35,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 12 letters. Loop has 2 letters. [2019-11-19 22:10:35,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:10:35,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-19 22:10:35,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:10:35,045 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2019-11-19 22:10:35,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:10:35,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 15 states and 18 transitions. [2019-11-19 22:10:35,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-19 22:10:35,047 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-19 22:10:35,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2019-11-19 22:10:35,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:10:35,047 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-11-19 22:10:35,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2019-11-19 22:10:35,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-11-19 22:10:35,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-19 22:10:35,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-11-19 22:10:35,049 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-19 22:10:35,049 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-19 22:10:35,049 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 22:10:35,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2019-11-19 22:10:35,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:10:35,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:10:35,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:10:35,050 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:10:35,050 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:10:35,051 INFO L794 eck$LassoCheckResult]: Stem: 403#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 401#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~ret17.base, main_#t~ret17.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 399#L534 assume !(main_~length~0 < 1); 400#L534-2 assume !(main_~n~0 < 1); 397#L537-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 398#L543-3 assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet16, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 404#L543-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 405#L543-3 assume !(main_~i~0 < main_~length~0 - 1); 407#L543-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstpncpy_#in~dst.base, cstpncpy_#in~dst.offset, cstpncpy_#in~src.base, cstpncpy_#in~src.offset, cstpncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstpncpy_#res.base, cstpncpy_#res.offset;havoc cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset, cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset, cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset, cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset, cstpncpy_#t~mem7, cstpncpy_#t~post9.base, cstpncpy_#t~post9.offset, cstpncpy_#t~pre8, cstpncpy_#t~pre4, cstpncpy_~d~0.base, cstpncpy_~d~0.offset, cstpncpy_~s~0.base, cstpncpy_~s~0.offset, cstpncpy_#t~mem10.base, cstpncpy_#t~mem10.offset, cstpncpy_~#dst.base, cstpncpy_~#dst.offset, cstpncpy_~src.base, cstpncpy_~src.offset, cstpncpy_~n;call cstpncpy_~#dst.base, cstpncpy_~#dst.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(cstpncpy_#in~dst.base, cstpncpy_#in~dst.offset, cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);cstpncpy_~src.base, cstpncpy_~src.offset := cstpncpy_#in~src.base, cstpncpy_#in~src.offset;cstpncpy_~n := cstpncpy_#in~n; 396#L516 assume 0 != cstpncpy_~n % 4294967296;call cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset := read~$Pointer$(cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);cstpncpy_~d~0.base, cstpncpy_~d~0.offset := cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset;havoc cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset;cstpncpy_~s~0.base, cstpncpy_~s~0.offset := cstpncpy_~src.base, cstpncpy_~src.offset;call cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset := read~$Pointer$(cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);call write~$Pointer$(cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset + (if cstpncpy_~n % 4294967296 % 4294967296 <= 2147483647 then cstpncpy_~n % 4294967296 % 4294967296 else cstpncpy_~n % 4294967296 % 4294967296 - 4294967296), cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);havoc cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset; 394#L520-4 [2019-11-19 22:10:35,051 INFO L796 eck$LassoCheckResult]: Loop: 394#L520-4 cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset := cstpncpy_~d~0.base, cstpncpy_~d~0.offset;cstpncpy_~d~0.base, cstpncpy_~d~0.offset := cstpncpy_#t~post5.base, 1 + cstpncpy_#t~post5.offset;cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset := cstpncpy_~s~0.base, cstpncpy_~s~0.offset;cstpncpy_~s~0.base, cstpncpy_~s~0.offset := cstpncpy_#t~post6.base, 1 + cstpncpy_#t~post6.offset;call cstpncpy_#t~mem7 := read~int(cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset, 1);call write~int(cstpncpy_#t~mem7, cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset, 1); 395#L521 assume !(0 == cstpncpy_#t~mem7);havoc cstpncpy_#t~mem7;havoc cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset;havoc cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset; 402#L520-1 cstpncpy_#t~pre4 := cstpncpy_~n - 1;cstpncpy_~n := cstpncpy_~n - 1; 406#L520-2 assume !!(0 != cstpncpy_#t~pre4 % 4294967296);havoc cstpncpy_#t~pre4; 394#L520-4 [2019-11-19 22:10:35,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:10:35,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1596934864, now seen corresponding path program 1 times [2019-11-19 22:10:35,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:10:35,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301011902] [2019-11-19 22:10:35,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:10:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:10:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:10:35,080 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:10:35,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:10:35,081 INFO L82 PathProgramCache]: Analyzing trace with hash 2049688, now seen corresponding path program 2 times [2019-11-19 22:10:35,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:10:35,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233188673] [2019-11-19 22:10:35,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:10:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:10:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:10:35,092 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:10:35,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:10:35,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1308529127, now seen corresponding path program 1 times [2019-11-19 22:10:35,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:10:35,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318444025] [2019-11-19 22:10:35,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:10:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:10:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:10:35,139 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:10:36,889 WARN L191 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 205 DAG size of output: 182 [2019-11-19 22:10:36,919 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:36,929 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:40,142 WARN L191 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 162 DAG size of output: 162 [2019-11-19 22:10:40,143 INFO L567 ElimStorePlain]: treesize reduction 6, result has 99.1 percent of original size [2019-11-19 22:10:40,156 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:40,167 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:41,357 WARN L191 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 160 [2019-11-19 22:10:41,358 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:41,367 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:41,381 INFO L496 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:42,750 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 161 [2019-11-19 22:10:42,750 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:42,760 INFO L496 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:42,784 INFO L496 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:43,990 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 159 [2019-11-19 22:10:43,990 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:43,998 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-11-19 22:10:44,006 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-19 22:10:45,079 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 153 [2019-11-19 22:10:45,079 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:45,081 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 5 dim-2 vars, End of recursive call: 10 dim-0 vars, and 2 xjuncts. [2019-11-19 22:10:45,081 INFO L221 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:677, output treesize:609 [2019-11-19 22:10:46,465 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 161 [2019-11-19 22:10:46,468 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:10:46,468 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:10:46,468 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:10:46,468 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:10:46,468 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:10:46,468 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:10:46,468 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:10:46,468 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:10:46,468 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpncpy-alloca-1.i_Iteration4_Lasso [2019-11-19 22:10:46,468 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:10:46,469 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:10:46,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:46,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:46,748 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-19 22:10:47,418 WARN L191 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2019-11-19 22:10:47,542 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-11-19 22:10:47,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:47,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:10:48,197 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 84 [2019-11-19 22:10:48,303 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-11-19 22:10:49,110 WARN L191 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-11-19 22:10:49,299 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:10:49,299 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:10:49,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:10:49,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:10:49,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:10:49,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:10:49,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:10:49,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:10:49,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:10:49,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:10:49,310 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:10:49,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:10:49,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:10:49,329 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-19 22:10:49,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:10:49,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:10:49,359 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-19 22:10:49,359 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:10:49,416 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:10:49,499 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2019-11-19 22:10:49,499 INFO L444 ModelExtractionUtils]: 17 out of 61 variables were initially zero. Simplification set additionally 39 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:10:49,506 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:10:49,509 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 22:10:49,509 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:10:49,510 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstpncpy_~s~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3) = -2*ULTIMATE.start_cstpncpy_~s~0.offset + 3*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_cstpncpy_~s~0.base)_1 + 2 >= 0] [2019-11-19 22:10:49,630 INFO L297 tatePredicateManager]: 15 out of 17 supporting invariants were superfluous and have been removed [2019-11-19 22:10:49,644 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 22:10:49,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:10:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:10:49,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-19 22:10:49,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:10:49,733 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:49,733 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-19 22:10:49,733 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 22:10:49,752 INFO L567 ElimStorePlain]: treesize reduction 10, result has 68.8 percent of original size [2019-11-19 22:10:49,752 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 22:10:49,753 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:13 [2019-11-19 22:10:49,818 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 22:10:49,819 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-11-19 22:10:49,820 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 22:10:49,829 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:49,833 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 22:10:49,833 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-19 22:10:49,834 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 22:10:49,841 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:49,843 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-19 22:10:49,844 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-19 22:10:49,850 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:10:49,850 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 22:10:49,850 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:34, output treesize:19 [2019-11-19 22:10:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:10:49,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-19 22:10:49,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:10:49,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:10:49,917 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2019-11-19 22:10:49,917 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand 8 states. [2019-11-19 22:10:50,124 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand 8 states. Result 29 states and 33 transitions. Complement of second has 10 states. [2019-11-19 22:10:50,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 5 stem states 1 non-accepting loop states 2 accepting loop states [2019-11-19 22:10:50,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-19 22:10:50,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 24 transitions. [2019-11-19 22:10:50,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-19 22:10:50,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:10:50,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-19 22:10:50,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:10:50,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 10 letters. Loop has 8 letters. [2019-11-19 22:10:50,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:10:50,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 33 transitions. [2019-11-19 22:10:50,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:10:50,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 19 states and 22 transitions. [2019-11-19 22:10:50,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-19 22:10:50,130 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-19 22:10:50,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2019-11-19 22:10:50,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:10:50,130 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-19 22:10:50,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2019-11-19 22:10:50,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2019-11-19 22:10:50,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-19 22:10:50,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-19 22:10:50,132 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-19 22:10:50,132 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-19 22:10:50,132 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 22:10:50,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2019-11-19 22:10:50,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:10:50,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:10:50,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:10:50,133 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:10:50,133 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:10:50,133 INFO L794 eck$LassoCheckResult]: Stem: 602#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 600#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~ret17.base, main_#t~ret17.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 598#L534 assume !(main_~length~0 < 1); 599#L534-2 assume !(main_~n~0 < 1); 596#L537-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 597#L543-3 assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet16, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 603#L543-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 604#L543-3 assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet16, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 606#L543-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 608#L543-3 assume !(main_~i~0 < main_~length~0 - 1); 607#L543-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstpncpy_#in~dst.base, cstpncpy_#in~dst.offset, cstpncpy_#in~src.base, cstpncpy_#in~src.offset, cstpncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstpncpy_#res.base, cstpncpy_#res.offset;havoc cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset, cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset, cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset, cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset, cstpncpy_#t~mem7, cstpncpy_#t~post9.base, cstpncpy_#t~post9.offset, cstpncpy_#t~pre8, cstpncpy_#t~pre4, cstpncpy_~d~0.base, cstpncpy_~d~0.offset, cstpncpy_~s~0.base, cstpncpy_~s~0.offset, cstpncpy_#t~mem10.base, cstpncpy_#t~mem10.offset, cstpncpy_~#dst.base, cstpncpy_~#dst.offset, cstpncpy_~src.base, cstpncpy_~src.offset, cstpncpy_~n;call cstpncpy_~#dst.base, cstpncpy_~#dst.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(cstpncpy_#in~dst.base, cstpncpy_#in~dst.offset, cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);cstpncpy_~src.base, cstpncpy_~src.offset := cstpncpy_#in~src.base, cstpncpy_#in~src.offset;cstpncpy_~n := cstpncpy_#in~n; 595#L516 assume 0 != cstpncpy_~n % 4294967296;call cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset := read~$Pointer$(cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);cstpncpy_~d~0.base, cstpncpy_~d~0.offset := cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset;havoc cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset;cstpncpy_~s~0.base, cstpncpy_~s~0.offset := cstpncpy_~src.base, cstpncpy_~src.offset;call cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset := read~$Pointer$(cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);call write~$Pointer$(cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset + (if cstpncpy_~n % 4294967296 % 4294967296 <= 2147483647 then cstpncpy_~n % 4294967296 % 4294967296 else cstpncpy_~n % 4294967296 % 4294967296 - 4294967296), cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);havoc cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset; 593#L520-4 [2019-11-19 22:10:50,133 INFO L796 eck$LassoCheckResult]: Loop: 593#L520-4 cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset := cstpncpy_~d~0.base, cstpncpy_~d~0.offset;cstpncpy_~d~0.base, cstpncpy_~d~0.offset := cstpncpy_#t~post5.base, 1 + cstpncpy_#t~post5.offset;cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset := cstpncpy_~s~0.base, cstpncpy_~s~0.offset;cstpncpy_~s~0.base, cstpncpy_~s~0.offset := cstpncpy_#t~post6.base, 1 + cstpncpy_#t~post6.offset;call cstpncpy_#t~mem7 := read~int(cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset, 1);call write~int(cstpncpy_#t~mem7, cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset, 1); 594#L521 assume !(0 == cstpncpy_#t~mem7);havoc cstpncpy_#t~mem7;havoc cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset;havoc cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset; 601#L520-1 cstpncpy_#t~pre4 := cstpncpy_~n - 1;cstpncpy_~n := cstpncpy_~n - 1; 605#L520-2 assume !!(0 != cstpncpy_#t~pre4 % 4294967296);havoc cstpncpy_#t~pre4; 593#L520-4 [2019-11-19 22:10:50,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:10:50,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1352797870, now seen corresponding path program 2 times [2019-11-19 22:10:50,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:10:50,134 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079361187] [2019-11-19 22:10:50,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:10:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:10:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:10:50,164 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:10:50,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:10:50,164 INFO L82 PathProgramCache]: Analyzing trace with hash 2049688, now seen corresponding path program 3 times [2019-11-19 22:10:50,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:10:50,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264983377] [2019-11-19 22:10:50,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:10:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:10:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:10:50,175 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:10:50,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:10:50,175 INFO L82 PathProgramCache]: Analyzing trace with hash -24103227, now seen corresponding path program 2 times [2019-11-19 22:10:50,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:10:50,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898850414] [2019-11-19 22:10:50,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:10:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:10:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:10:50,217 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:10:55,176 WARN L191 SmtUtils]: Spent 4.80 s on a formula simplification. DAG size of input: 231 DAG size of output: 207 [2019-11-19 22:10:55,213 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:10:55,233 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:11:03,691 WARN L191 SmtUtils]: Spent 8.46 s on a formula simplification. DAG size of input: 177 DAG size of output: 177 [2019-11-19 22:11:03,691 INFO L567 ElimStorePlain]: treesize reduction 6, result has 99.2 percent of original size [2019-11-19 22:11:03,709 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:11:03,725 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:11:08,600 WARN L191 SmtUtils]: Spent 4.87 s on a formula simplification that was a NOOP. DAG size: 178 [2019-11-19 22:11:08,601 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:08,611 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:11:08,621 INFO L496 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:11:13,417 WARN L191 SmtUtils]: Spent 4.80 s on a formula simplification that was a NOOP. DAG size: 179 [2019-11-19 22:11:13,417 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:13,429 INFO L496 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:11:13,444 INFO L496 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:11:19,772 WARN L191 SmtUtils]: Spent 6.33 s on a formula simplification that was a NOOP. DAG size: 183 [2019-11-19 22:11:19,772 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:19,789 INFO L496 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:11:19,804 INFO L496 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:11:24,355 WARN L191 SmtUtils]: Spent 4.55 s on a formula simplification that was a NOOP. DAG size: 178 [2019-11-19 22:11:24,356 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:24,370 INFO L496 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:11:24,388 INFO L496 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 22:11:27,309 WARN L191 SmtUtils]: Spent 2.92 s on a formula simplification that was a NOOP. DAG size: 173 [2019-11-19 22:11:27,310 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:27,319 INFO L496 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2019-11-19 22:11:27,328 INFO L496 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2019-11-19 22:11:29,127 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 167 [2019-11-19 22:11:29,128 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:29,129 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 7 dim-2 vars, End of recursive call: 16 dim-0 vars, and 2 xjuncts. [2019-11-19 22:11:29,129 INFO L221 ElimStorePlain]: Needed 15 recursive calls to eliminate 9 variables, input treesize:763, output treesize:659 [2019-11-19 22:11:31,228 WARN L191 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 177 [2019-11-19 22:11:31,232 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:11:31,232 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:11:31,232 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:11:31,232 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:11:31,232 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:11:31,232 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:31,232 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:11:31,232 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:11:31,232 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpncpy-alloca-1.i_Iteration5_Lasso [2019-11-19 22:11:31,232 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:11:31,232 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:11:31,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:11:31,572 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-19 22:11:32,317 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 101 [2019-11-19 22:11:32,483 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-11-19 22:11:32,802 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-11-19 22:11:33,380 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-11-19 22:11:33,567 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:11:33,567 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,571 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,574 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,584 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,591 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,597 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,599 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,601 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:33,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:33,610 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,620 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,625 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,629 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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) [2019-11-19 22:11:33,637 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 Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,642 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:33,642 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:33,650 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,674 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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) [2019-11-19 22:11:33,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,693 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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) [2019-11-19 22:11:33,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,714 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:33,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:33,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,758 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,780 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/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 [2019-11-19 22:11:33,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,796 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,802 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,805 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,815 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:33,815 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:33,818 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,825 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,832 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,839 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,850 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,857 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,860 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:11:33,864 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 Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,866 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,866 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,867 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:11:33,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:11:33,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:11:33,877 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,884 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:33,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:33,886 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:11:33,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,893 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:11:33,893 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:33,896 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,899 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:11:33,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:11:33,901 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-19 22:11:33,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:11:33,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:11:33,913 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-19 22:11:33,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:11:33,932 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:11:33,984 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2019-11-19 22:11:33,984 INFO L444 ModelExtractionUtils]: 9 out of 34 variables were initially zero. Simplification set additionally 20 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02270dcd-12e7-43de-afeb-639f7ea12d53/bin/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:11:33,995 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:11:33,997 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 22:11:33,998 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:11:33,998 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstpncpy_~n) = 1*ULTIMATE.start_cstpncpy_~n Supporting invariants [1*ULTIMATE.start_cstpncpy_~n + 1*ULTIMATE.start_cstpncpy_~d~0.offset - 1*v_rep(select #length ULTIMATE.start_cstpncpy_~d~0.base)_3 >= 0] [2019-11-19 22:11:34,105 INFO L297 tatePredicateManager]: 21 out of 22 supporting invariants were superfluous and have been removed [2019-11-19 22:11:34,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:11:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:34,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-19 22:11:34,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:34,156 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_154|], 3=[|v_#valid_193|]} [2019-11-19 22:11:34,160 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 22:11:34,160 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2019-11-19 22:11:34,160 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 22:11:34,171 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:34,189 INFO L343 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-11-19 22:11:34,190 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2019-11-19 22:11:34,190 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 22:11:34,202 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:34,203 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 22:11:34,203 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:24 [2019-11-19 22:11:34,278 INFO L392 ElimStorePlain]: Different costs {1=[|v_#length_155|], 3=[|v_#valid_194|]} [2019-11-19 22:11:34,292 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 22:11:34,293 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-11-19 22:11:34,293 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 22:11:34,317 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:34,338 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:34,338 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2019-11-19 22:11:34,339 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 22:11:34,367 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:34,372 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-19 22:11:34,372 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-19 22:11:34,394 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:34,398 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-19 22:11:34,398 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-19 22:11:34,418 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:11:34,419 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 22:11:34,419 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:57, output treesize:31 [2019-11-19 22:11:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:11:34,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-19 22:11:34,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:11:34,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:11:34,509 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 3 loop predicates [2019-11-19 22:11:34,509 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand 7 states. [2019-11-19 22:11:34,643 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand 7 states. Result 21 states and 25 transitions. Complement of second has 8 states. [2019-11-19 22:11:34,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:11:34,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-19 22:11:34,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2019-11-19 22:11:34,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 12 letters. Loop has 4 letters. [2019-11-19 22:11:34,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:34,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 16 letters. Loop has 4 letters. [2019-11-19 22:11:34,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:34,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 12 letters. Loop has 8 letters. [2019-11-19 22:11:34,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:11:34,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2019-11-19 22:11:34,648 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 22:11:34,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2019-11-19 22:11:34,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 22:11:34,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 22:11:34,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 22:11:34,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:11:34,649 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:11:34,649 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:11:34,649 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:11:34,649 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-19 22:11:34,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:11:34,649 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 22:11:34,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 22:11:34,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:11:34 BoogieIcfgContainer [2019-11-19 22:11:34,654 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:11:34,654 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:11:34,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:11:34,655 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:11:34,655 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:09:26" (3/4) ... [2019-11-19 22:11:34,658 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:11:34,658 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:11:34,659 INFO L168 Benchmark]: Toolchain (without parser) took 128914.29 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 351.3 MB). Free memory was 939.3 MB in the beginning and 879.0 MB in the end (delta: 60.3 MB). Peak memory consumption was 411.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:11:34,660 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:11:34,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:11:34,660 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.95 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:11:34,661 INFO L168 Benchmark]: Boogie Preprocessor took 28.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:11:34,661 INFO L168 Benchmark]: RCFGBuilder took 376.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:11:34,661 INFO L168 Benchmark]: BuchiAutomizer took 127917.58 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 248.0 MB). Free memory was 1.0 GB in the beginning and 879.0 MB in the end (delta: 169.9 MB). Peak memory consumption was 417.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:11:34,662 INFO L168 Benchmark]: Witness Printer took 3.95 ms. Allocated memory is still 1.4 GB. Free memory is still 879.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:11:34,667 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 542.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.95 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.17 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 376.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 127917.58 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 248.0 MB). Free memory was 1.0 GB in the beginning and 879.0 MB in the end (delta: 169.9 MB). Peak memory consumption was 417.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.95 ms. Allocated memory is still 1.4 GB. Free memory is still 879.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + length and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] + -1 * d and consists of 7 locations. One deterministic module has affine ranking function -2 * s + 3 * unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] and consists of 8 locations. One deterministic module has affine ranking function n and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 127.8s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 126.1s. Construction of modules took 0.2s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 2. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 67 SDtfs, 105 SDslu, 127 SDs, 0 SdLazy, 124 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital795 mio100 ax104 hnf99 lsp218 ukn27 mio100 lsp66 div114 bol100 ite100 ukn100 eq175 hnf84 smp67 dnf206 smp67 tf100 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 180ms VariablesStem: 34 VariablesLoop: 21 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...