./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-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_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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 7ac509d7b3f1ef173e01ced3ce9249a58ee1c04d .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:29:06,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:29:06,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:29:06,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:29:06,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:29:06,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:29:06,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:29:06,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:29:06,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:29:06,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:29:06,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:29:06,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:29:06,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:29:06,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:29:06,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:29:06,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:29:06,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:29:06,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:29:06,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:29:06,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:29:06,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:29:06,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:29:06,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:29:06,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:29:06,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:29:06,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:29:06,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:29:06,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:29:06,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:29:06,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:29:06,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:29:06,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:29:06,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:29:06,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:29:06,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:29:06,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:29:06,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:29:06,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:29:06,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:29:06,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:29:06,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:29:06,370 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 02:29:06,392 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:29:06,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:29:06,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:29:06,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:29:06,393 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:29:06,394 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 02:29:06,394 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 02:29:06,394 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 02:29:06,394 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 02:29:06,394 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 02:29:06,395 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 02:29:06,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:29:06,395 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:29:06,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:29:06,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:29:06,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:29:06,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:29:06,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 02:29:06,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 02:29:06,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 02:29:06,397 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:29:06,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:29:06,397 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 02:29:06,398 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:29:06,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 02:29:06,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:29:06,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:29:06,398 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 02:29:06,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:29:06,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:29:06,399 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 02:29:06,400 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 02:29:06,401 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_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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 -> 7ac509d7b3f1ef173e01ced3ce9249a58ee1c04d [2019-11-20 02:29:06,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:29:06,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:29:06,564 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:29:06,566 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:29:06,566 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:29:06,567 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i [2019-11-20 02:29:06,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/data/37ffee937/f0f5ff60b49548a1bde2168a0766e053/FLAG624cead19 [2019-11-20 02:29:07,127 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:29:07,128 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i [2019-11-20 02:29:07,145 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/data/37ffee937/f0f5ff60b49548a1bde2168a0766e053/FLAG624cead19 [2019-11-20 02:29:07,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/data/37ffee937/f0f5ff60b49548a1bde2168a0766e053 [2019-11-20 02:29:07,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:29:07,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:29:07,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:29:07,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:29:07,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:29:07,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:29:07" (1/1) ... [2019-11-20 02:29:07,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc304e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:07, skipping insertion in model container [2019-11-20 02:29:07,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:29:07" (1/1) ... [2019-11-20 02:29:07,654 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:29:07,700 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:29:08,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:29:08,026 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:29:08,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:29:08,109 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:29:08,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:08 WrapperNode [2019-11-20 02:29:08,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:29:08,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:29:08,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:29:08,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:29:08,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:08" (1/1) ... [2019-11-20 02:29:08,139 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:08" (1/1) ... [2019-11-20 02:29:08,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:29:08,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:29:08,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:29:08,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:29:08,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:08" (1/1) ... [2019-11-20 02:29:08,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:08" (1/1) ... [2019-11-20 02:29:08,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:08" (1/1) ... [2019-11-20 02:29:08,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:08" (1/1) ... [2019-11-20 02:29:08,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:08" (1/1) ... [2019-11-20 02:29:08,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:08" (1/1) ... [2019-11-20 02:29:08,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:08" (1/1) ... [2019-11-20 02:29:08,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:29:08,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:29:08,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:29:08,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:29:08,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 02:29:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 02:29:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 02:29:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 02:29:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:29:08,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:29:08,490 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:29:08,491 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 02:29:08,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:29:08 BoogieIcfgContainer [2019-11-20 02:29:08,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:29:08,492 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 02:29:08,492 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 02:29:08,496 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 02:29:08,496 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:29:08,497 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 02:29:07" (1/3) ... [2019-11-20 02:29:08,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62613781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:29:08, skipping insertion in model container [2019-11-20 02:29:08,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:29:08,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:29:08" (2/3) ... [2019-11-20 02:29:08,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62613781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:29:08, skipping insertion in model container [2019-11-20 02:29:08,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:29:08,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:29:08" (3/3) ... [2019-11-20 02:29:08,500 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrnlen-alloca-1.i [2019-11-20 02:29:08,537 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 02:29:08,537 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 02:29:08,538 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 02:29:08,538 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:29:08,538 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:29:08,538 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 02:29:08,538 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:29:08,538 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 02:29:08,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-11-20 02:29:08,568 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 02:29:08,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:29:08,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:29:08,573 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 02:29:08,573 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:29:08,573 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 02:29:08,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-11-20 02:29:08,574 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 02:29:08,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:29:08,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:29:08,575 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 02:29:08,575 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:29:08,580 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11, main_~length1~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 6#L524true assume !(main_~length1~0 < 1); 8#L524-2true assume !(main_~n~0 < 1); 4#L527-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 16#L532-3true [2019-11-20 02:29:08,580 INFO L796 eck$LassoCheckResult]: Loop: 16#L532-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet10, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 13#L532-2true main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 16#L532-3true [2019-11-20 02:29:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:08,585 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-20 02:29:08,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:08,592 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152099100] [2019-11-20 02:29:08,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:08,698 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:29:08,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:08,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-11-20 02:29:08,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:08,699 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414973229] [2019-11-20 02:29:08,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:08,719 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:29:08,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:08,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-11-20 02:29:08,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:08,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540826970] [2019-11-20 02:29:08,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:08,758 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:29:08,973 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2019-11-20 02:29:09,029 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:29:09,030 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:29:09,030 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:29:09,030 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:29:09,031 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:29:09,031 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,031 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:29:09,031 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:29:09,031 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrnlen-alloca-1.i_Iteration1_Lasso [2019-11-20 02:29:09,031 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:29:09,032 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:29:09,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:09,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:09,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:09,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:09,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:09,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:09,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:09,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:09,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:09,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:09,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:09,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:09,482 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:29:09,487 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:09,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:09,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:29:09,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:29:09,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:29:09,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:09,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:29:09,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:29:09,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,551 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:09,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:29:09,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:29:09,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:29:09,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:09,588 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 [2019-11-20 02:29:09,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,597 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:09,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:09,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:09,631 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,636 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:29:09,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,650 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:09,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,659 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:09,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:09,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,691 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:09,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:29:09,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:29:09,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,720 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:09,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:29:09,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:29:09,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,742 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:09,760 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,767 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:09,768 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 [2019-11-20 02:29:09,774 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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 [2019-11-20 02:29:09,788 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:09,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:29:09,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:29:09,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:29:09,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:29:09,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,832 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:09,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:29:09,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:29:09,859 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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 [2019-11-20 02:29:09,872 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,878 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:09,878 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:29:09,883 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:09,892 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:09,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:09,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:09,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:09,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:09,903 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:09,903 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:29:09,917 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:29:09,983 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-20 02:29:09,983 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:10,007 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:10,010 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 02:29:10,011 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:29:10,011 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-20 02:29:10,055 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-20 02:29:10,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:29:10,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:29:10,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:29:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:29:10,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:29:10,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:29:10,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:29:10,141 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 [2019-11-20 02:29:10,142 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 3 states. [2019-11-20 02:29:10,204 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 3 states. Result 39 states and 53 transitions. Complement of second has 7 states. [2019-11-20 02:29:10,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 02:29:10,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:29:10,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2019-11-20 02:29:10,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 02:29:10,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:29:10,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 02:29:10,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:29:10,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-20 02:29:10,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:29:10,217 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 53 transitions. [2019-11-20 02:29:10,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 02:29:10,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 13 states and 18 transitions. [2019-11-20 02:29:10,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 02:29:10,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-20 02:29:10,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2019-11-20 02:29:10,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:29:10,239 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-11-20 02:29:10,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2019-11-20 02:29:10,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-20 02:29:10,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 02:29:10,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2019-11-20 02:29:10,267 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-11-20 02:29:10,267 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-11-20 02:29:10,267 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 02:29:10,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2019-11-20 02:29:10,269 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 02:29:10,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:29:10,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:29:10,271 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:29:10,271 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 02:29:10,272 INFO L794 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 116#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11, main_~length1~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 117#L524 assume !(main_~length1~0 < 1); 126#L524-2 assume !(main_~n~0 < 1); 120#L527-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 121#L532-3 assume !(main_~i~0 < main_~length1~0 - 1); 127#L532-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrnlen_#in~str.base, cstrnlen_#in~str.offset, cstrnlen_#in~maxlen := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~n~0;havoc cstrnlen_#res;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset, cstrnlen_#t~post3, cstrnlen_#t~mem4, cstrnlen_#t~short5, cstrnlen_~str.base, cstrnlen_~str.offset, cstrnlen_~maxlen, cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~str.base, cstrnlen_~str.offset := cstrnlen_#in~str.base, cstrnlen_#in~str.offset;cstrnlen_~maxlen := cstrnlen_#in~maxlen;havoc cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_~str.base, cstrnlen_~str.offset; 128#L517-6 [2019-11-20 02:29:10,272 INFO L796 eck$LassoCheckResult]: Loop: 128#L517-6 cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 118#L517-1 assume cstrnlen_#t~short5;call cstrnlen_#t~mem4 := read~int(cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset, 1);cstrnlen_#t~short5 := 0 != cstrnlen_#t~mem4; 119#L517-3 assume !!cstrnlen_#t~short5;havoc cstrnlen_#t~mem4;havoc cstrnlen_#t~short5; 123#L517-5 cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset := cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_#t~post2.base, 1 + cstrnlen_#t~post2.offset;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset;cstrnlen_#t~post3 := cstrnlen_~maxlen;cstrnlen_~maxlen := cstrnlen_#t~post3 - 1;havoc cstrnlen_#t~post3; 128#L517-6 [2019-11-20 02:29:10,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:10,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-11-20 02:29:10,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:10,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307289926] [2019-11-20 02:29:10,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:10,347 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:29:10,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:10,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1942630, now seen corresponding path program 1 times [2019-11-20 02:29:10,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:10,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767763905] [2019-11-20 02:29:10,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:10,369 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:29:10,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:10,370 INFO L82 PathProgramCache]: Analyzing trace with hash -2087826349, now seen corresponding path program 1 times [2019-11-20 02:29:10,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:10,370 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005347190] [2019-11-20 02:29:10,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:29:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:29:10,593 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005347190] [2019-11-20 02:29:10,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:29:10,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 02:29:10,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517565647] [2019-11-20 02:29:10,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:29:10,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 02:29:10,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-20 02:29:10,707 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand 7 states. [2019-11-20 02:29:10,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:29:10,806 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-11-20 02:29:10,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 02:29:10,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 23 transitions. [2019-11-20 02:29:10,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 02:29:10,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 14 states and 17 transitions. [2019-11-20 02:29:10,809 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-20 02:29:10,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-20 02:29:10,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2019-11-20 02:29:10,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:29:10,809 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-20 02:29:10,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2019-11-20 02:29:10,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-11-20 02:29:10,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 02:29:10,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-11-20 02:29:10,813 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-11-20 02:29:10,813 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-11-20 02:29:10,813 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 02:29:10,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2019-11-20 02:29:10,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 02:29:10,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:29:10,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:29:10,814 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:29:10,814 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 02:29:10,815 INFO L794 eck$LassoCheckResult]: Stem: 172#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 168#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11, main_~length1~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 169#L524 assume !(main_~length1~0 < 1); 176#L524-2 assume !(main_~n~0 < 1); 170#L527-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 171#L532-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet10, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 174#L532-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 175#L532-3 assume !(main_~i~0 < main_~length1~0 - 1); 177#L532-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrnlen_#in~str.base, cstrnlen_#in~str.offset, cstrnlen_#in~maxlen := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~n~0;havoc cstrnlen_#res;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset, cstrnlen_#t~post3, cstrnlen_#t~mem4, cstrnlen_#t~short5, cstrnlen_~str.base, cstrnlen_~str.offset, cstrnlen_~maxlen, cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~str.base, cstrnlen_~str.offset := cstrnlen_#in~str.base, cstrnlen_#in~str.offset;cstrnlen_~maxlen := cstrnlen_#in~maxlen;havoc cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_~str.base, cstrnlen_~str.offset; 178#L517-6 [2019-11-20 02:29:10,815 INFO L796 eck$LassoCheckResult]: Loop: 178#L517-6 cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 166#L517-1 assume cstrnlen_#t~short5;call cstrnlen_#t~mem4 := read~int(cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset, 1);cstrnlen_#t~short5 := 0 != cstrnlen_#t~mem4; 167#L517-3 assume !!cstrnlen_#t~short5;havoc cstrnlen_#t~mem4;havoc cstrnlen_#t~short5; 173#L517-5 cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset := cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_#t~post2.base, 1 + cstrnlen_#t~post2.offset;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset;cstrnlen_#t~post3 := cstrnlen_~maxlen;cstrnlen_~maxlen := cstrnlen_#t~post3 - 1;havoc cstrnlen_#t~post3; 178#L517-6 [2019-11-20 02:29:10,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:10,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1298440016, now seen corresponding path program 1 times [2019-11-20 02:29:10,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:10,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467177509] [2019-11-20 02:29:10,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:10,863 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:29:10,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:10,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1942630, now seen corresponding path program 2 times [2019-11-20 02:29:10,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:10,864 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592868579] [2019-11-20 02:29:10,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:10,888 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:29:10,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:10,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1066138571, now seen corresponding path program 1 times [2019-11-20 02:29:10,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:29:10,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995906915] [2019-11-20 02:29:10,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:29:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:29:10,953 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:29:11,313 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-11-20 02:29:11,405 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:29:11,405 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:29:11,405 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:29:11,405 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:29:11,405 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:29:11,405 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:11,406 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:29:11,406 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:29:11,406 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrnlen-alloca-1.i_Iteration3_Lasso [2019-11-20 02:29:11,406 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:29:11,406 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:29:11,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,572 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-11-20 02:29:11,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:11,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:29:12,140 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:29:12,140 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:12,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:12,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:12,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:29:12,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:12,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:12,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:12,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:29:12,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:29:12,151 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:12,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:12,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:12,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:29:12,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:12,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:12,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:12,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:29:12,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:29:12,175 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:29:12,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:12,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:12,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:12,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:12,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:12,195 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:12,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:12,199 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:12,211 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:12,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:12,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:29:12,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:12,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:12,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:12,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:29:12,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:29:12,219 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:12,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:12,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:12,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:12,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:12,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:12,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:12,231 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:12,236 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:12,242 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:12,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:12,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:29:12,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:12,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:12,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:12,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:29:12,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:12,247 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:12,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:12,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:12,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:12,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:12,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:12,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:12,261 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:12,267 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:12,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:12,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:12,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:12,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:12,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:12,285 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:12,285 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:12,300 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:12,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:12,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:12,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:29:12,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:12,330 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 02:29:12,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:12,331 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-20 02:29:12,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:12,334 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:12,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:29:12,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:29:12,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:29:12,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:29:12,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:29:12,360 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:29:12,360 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:12,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:29:12,418 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-11-20 02:29:12,418 INFO L444 ModelExtractionUtils]: 7 out of 34 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37a20903-3d0b-441e-aabb-4fa6cc2e36dc/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) [2019-11-20 02:29:12,423 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:29:12,426 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 02:29:12,426 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:29:12,426 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2, ULTIMATE.start_cstrnlen_~cp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 - 1*ULTIMATE.start_cstrnlen_~cp~0.offset Supporting invariants [] [2019-11-20 02:29:12,442 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2019-11-20 02:29:12,448 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 02:29:12,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:29:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:29:12,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 02:29:12,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:29:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:29:12,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 02:29:12,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:29:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:29:12,535 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-20 02:29:12,536 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 5 states. [2019-11-20 02:29:12,574 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 17 states and 21 transitions. Complement of second has 7 states. [2019-11-20 02:29:12,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 02:29:12,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 02:29:12,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2019-11-20 02:29:12,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 9 letters. Loop has 4 letters. [2019-11-20 02:29:12,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:29:12,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 13 letters. Loop has 4 letters. [2019-11-20 02:29:12,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:29:12,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 9 letters. Loop has 8 letters. [2019-11-20 02:29:12,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:29:12,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2019-11-20 02:29:12,577 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:29:12,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2019-11-20 02:29:12,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 02:29:12,577 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 02:29:12,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 02:29:12,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:29:12,578 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:29:12,578 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:29:12,578 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:29:12,578 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 02:29:12,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:29:12,578 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:29:12,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 02:29:12,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 02:29:12 BoogieIcfgContainer [2019-11-20 02:29:12,585 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 02:29:12,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:29:12,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:29:12,585 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:29:12,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:29:08" (3/4) ... [2019-11-20 02:29:12,589 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 02:29:12,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:29:12,593 INFO L168 Benchmark]: Toolchain (without parser) took 4952.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.6 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -219.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:29:12,594 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:29:12,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 469.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:29:12,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:29:12,595 INFO L168 Benchmark]: Boogie Preprocessor took 24.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:29:12,600 INFO L168 Benchmark]: RCFGBuilder took 307.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:29:12,601 INFO L168 Benchmark]: BuchiAutomizer took 4092.39 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 44.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -47.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:29:12,602 INFO L168 Benchmark]: Witness Printer took 6.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:29:12,611 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 469.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 307.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4092.39 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 44.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -47.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 6.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * cp and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 38 SDtfs, 65 SDslu, 52 SDs, 0 SdLazy, 45 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital125 mio100 ax115 hnf98 lsp75 ukn86 mio100 lsp59 div100 bol100 ite100 ukn100 eq173 hnf90 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...