./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-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_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/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 f68b319d77fa756392ca29e618a1e0accd9b6c9e .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:52:15,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:52:15,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:52:15,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:52:15,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:52:15,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:52:15,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:52:15,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:52:15,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:52:15,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:52:15,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:52:15,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:52:15,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:52:15,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:52:15,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:52:15,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:52:15,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:52:15,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:52:15,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:52:15,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:52:15,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:52:15,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:52:15,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:52:15,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:52:15,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:52:15,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:52:15,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:52:15,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:52:15,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:52:15,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:52:15,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:52:15,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:52:15,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:52:15,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:52:15,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:52:15,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:52:15,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:52:15,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:52:15,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:52:15,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:52:15,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:52:15,552 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 02:52:15,567 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:52:15,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:52:15,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:52:15,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:52:15,569 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:52:15,569 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 02:52:15,570 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 02:52:15,570 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 02:52:15,570 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 02:52:15,570 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 02:52:15,570 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 02:52:15,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:52:15,571 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:52:15,571 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:52:15,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:52:15,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:52:15,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:52:15,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 02:52:15,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 02:52:15,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 02:52:15,573 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:52:15,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:52:15,573 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 02:52:15,573 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:52:15,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 02:52:15,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:52:15,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:52:15,574 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 02:52:15,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:52:15,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:52:15,575 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 02:52:15,576 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 02:52:15,576 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_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/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 -> f68b319d77fa756392ca29e618a1e0accd9b6c9e [2019-11-20 02:52:15,712 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:52:15,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:52:15,725 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:52:15,726 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:52:15,727 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:52:15,727 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca-1.i [2019-11-20 02:52:15,788 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/data/6c80b48b2/ad09aa2ddafd4f7aa27d64de82630d1a/FLAGcf0d1f0ad [2019-11-20 02:52:16,273 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:52:16,274 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca-1.i [2019-11-20 02:52:16,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/data/6c80b48b2/ad09aa2ddafd4f7aa27d64de82630d1a/FLAGcf0d1f0ad [2019-11-20 02:52:16,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/data/6c80b48b2/ad09aa2ddafd4f7aa27d64de82630d1a [2019-11-20 02:52:16,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:52:16,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:52:16,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:52:16,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:52:16,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:52:16,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:52:16" (1/1) ... [2019-11-20 02:52:16,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605d9d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:16, skipping insertion in model container [2019-11-20 02:52:16,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:52:16" (1/1) ... [2019-11-20 02:52:16,763 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:52:16,801 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:52:17,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:52:17,123 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:52:17,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:52:17,227 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:52:17,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:17 WrapperNode [2019-11-20 02:52:17,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:52:17,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:52:17,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:52:17,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:52:17,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:17" (1/1) ... [2019-11-20 02:52:17,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:17" (1/1) ... [2019-11-20 02:52:17,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:52:17,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:52:17,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:52:17,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:52:17,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:17" (1/1) ... [2019-11-20 02:52:17,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:17" (1/1) ... [2019-11-20 02:52:17,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:17" (1/1) ... [2019-11-20 02:52:17,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:17" (1/1) ... [2019-11-20 02:52:17,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:17" (1/1) ... [2019-11-20 02:52:17,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:17" (1/1) ... [2019-11-20 02:52:17,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:17" (1/1) ... [2019-11-20 02:52:17,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:52:17,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:52:17,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:52:17,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:52:17,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/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 02:52:17,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 02:52:17,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 02:52:17,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 02:52:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 02:52:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:52:17,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:52:17,778 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:52:17,778 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 02:52:17,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:52:17 BoogieIcfgContainer [2019-11-20 02:52:17,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:52:17,780 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 02:52:17,780 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 02:52:17,783 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 02:52:17,784 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:52:17,784 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 02:52:16" (1/3) ... [2019-11-20 02:52:17,785 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7aa601f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:52:17, skipping insertion in model container [2019-11-20 02:52:17,786 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:52:17,786 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:52:17" (2/3) ... [2019-11-20 02:52:17,786 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7aa601f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:52:17, skipping insertion in model container [2019-11-20 02:52:17,786 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:52:17,787 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:52:17" (3/3) ... [2019-11-20 02:52:17,788 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcmp-alloca-1.i [2019-11-20 02:52:17,823 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 02:52:17,823 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 02:52:17,823 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 02:52:17,823 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:52:17,823 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:52:17,824 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 02:52:17,824 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:52:17,824 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 02:52:17,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2019-11-20 02:52:17,853 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-11-20 02:52:17,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:52:17,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:52:17,858 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 02:52:17,858 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:52:17,858 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 02:52:17,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2019-11-20 02:52:17,859 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-11-20 02:52:17,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:52:17,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:52:17,860 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 02:52:17,860 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:52:17,866 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 13#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 6#L524true assume !(main_~length1~0 < 1); 12#L524-2true assume !(main_~length2~0 < 1); 3#L527-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 16#L533-3true [2019-11-20 02:52:17,866 INFO L796 eck$LassoCheckResult]: Loop: 16#L533-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 15#L533-2true main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 16#L533-3true [2019-11-20 02:52:17,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:17,872 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-20 02:52:17,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:17,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736711293] [2019-11-20 02:52:17,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:18,001 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:18,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:18,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-11-20 02:52:18,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:18,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807326701] [2019-11-20 02:52:18,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:18,020 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:18,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:18,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-11-20 02:52:18,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:18,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396885438] [2019-11-20 02:52:18,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:18,067 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:18,380 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-11-20 02:52:18,486 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-11-20 02:52:18,503 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:52:18,504 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:52:18,504 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:52:18,504 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:52:18,504 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:52:18,505 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:18,505 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:52:18,505 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:52:18,505 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-1.i_Iteration1_Lasso [2019-11-20 02:52:18,505 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:52:18,506 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:52:18,544 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 02:52:18,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:18,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:18,558 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 02:52:18,563 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 02:52:18,567 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 02:52:18,570 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 02:52:18,574 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 02:52:18,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:18,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:18,586 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 02:52:18,589 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 02:52:18,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:18,765 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 02:52:18,767 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 02:52:19,096 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:52:19,101 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:19,116 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 02:52:19,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:19,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:19,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:19,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/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 02:52:19,136 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 02:52:19,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:19,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:19,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:19,145 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:19,157 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:52:19,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:19,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:19,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:19,164 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/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 02:52:19,191 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 02:52:19,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,202 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:19,202 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:19,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:19,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:52:19,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:19,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:19,234 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:19,242 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 02:52:19,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:19,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:19,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:19,247 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:19,257 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 02:52:19,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:19,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:19,267 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:19,276 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 02:52:19,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,290 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:19,291 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:19,297 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:19,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:52:19,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:19,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:19,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:19,324 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:19,343 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 02:52:19,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:19,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:19,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:19,350 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:19,366 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 02:52:19,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:19,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:19,375 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/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 02:52:19,394 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 02:52:19,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,402 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:19,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:19,408 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:19,422 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 02:52:19,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:19,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:19,433 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:19,446 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 02:52:19,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,452 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:19,452 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:19,457 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/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 02:52:19,464 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 02:52:19,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:19,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:19,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:19,469 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/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 02:52:19,486 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 02:52:19,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:19,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:19,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:19,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:19,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:19,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:19,513 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:52:19,601 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-20 02:52:19,601 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/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 02:52:19,671 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 02:52:19,674 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 02:52:19,674 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:52:19,675 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 02:52:19,693 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-11-20 02:52:19,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:52:19,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:52:19,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:52:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:52:19,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:52:19,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:52:19,769 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 02:52:19,785 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 02:52:19,786 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states. Second operand 3 states. [2019-11-20 02:52:19,842 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states.. Second operand 3 states. Result 45 states and 64 transitions. Complement of second has 7 states. [2019-11-20 02:52:19,843 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 02:52:19,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:52:19,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2019-11-20 02:52:19,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 02:52:19,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:52:19,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 02:52:19,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:52:19,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-20 02:52:19,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:52:19,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 64 transitions. [2019-11-20 02:52:19,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 02:52:19,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 15 states and 20 transitions. [2019-11-20 02:52:19,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-20 02:52:19,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-20 02:52:19,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2019-11-20 02:52:19,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:52:19,862 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-20 02:52:19,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2019-11-20 02:52:19,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-20 02:52:19,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-20 02:52:19,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-11-20 02:52:19,886 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-20 02:52:19,886 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-20 02:52:19,886 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 02:52:19,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2019-11-20 02:52:19,887 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 02:52:19,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:52:19,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:52:19,887 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:52:19,887 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:52:19,888 INFO L794 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 146#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 142#L524 assume !(main_~length1~0 < 1); 143#L524-2 assume !(main_~length2~0 < 1); 136#L527-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 137#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 150#L533-4 main_~i~1 := 0; 141#L537-3 [2019-11-20 02:52:19,888 INFO L796 eck$LassoCheckResult]: Loop: 141#L537-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 140#L537-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 141#L537-3 [2019-11-20 02:52:19,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:19,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-11-20 02:52:19,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:19,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479930170] [2019-11-20 02:52:19,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:19,913 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:19,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:19,914 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-11-20 02:52:19,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:19,914 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434965614] [2019-11-20 02:52:19,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:19,926 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:19,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:19,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2019-11-20 02:52:19,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:19,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499780585] [2019-11-20 02:52:19,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:19,996 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:20,263 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-11-20 02:52:20,360 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:52:20,360 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:52:20,361 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:52:20,361 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:52:20,361 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:52:20,361 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:20,361 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:52:20,361 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:52:20,361 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-1.i_Iteration2_Lasso [2019-11-20 02:52:20,361 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:52:20,362 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:52:20,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:20,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:20,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:20,515 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-11-20 02:52:20,541 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 02:52:20,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:20,548 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 02:52:20,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:20,561 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 02:52:20,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:20,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:20,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:20,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:20,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:20,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:20,883 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:52:20,883 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:52:20,902 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 02:52:20,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:20,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:20,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:20,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:20,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:20,907 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:20,907 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:20,908 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:52:20,933 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 02:52:20,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:20,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:20,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:20,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:20,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:20,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:20,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:20,938 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/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 02:52:20,956 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 02:52:20,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:20,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:20,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:20,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:20,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:20,962 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 02:52:20,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/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 02:52:20,974 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 02:52:20,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:20,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:20,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:20,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:20,984 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:20,984 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:20,998 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:52:21,049 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2019-11-20 02:52:21,049 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/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 02:52:21,057 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:21,060 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 02:52:21,060 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:52:21,061 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2, ULTIMATE.start_main_~i~1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0.offset >= 0] [2019-11-20 02:52:21,082 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2019-11-20 02:52:21,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 02:52:21,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:52:21,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 02:52:21,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:52:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:52:21,166 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 02:52:21,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:52:21,187 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 02:52:21,187 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 02:52:21,187 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-11-20 02:52:21,242 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 21 states and 30 transitions. Complement of second has 7 states. [2019-11-20 02:52:21,243 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 02:52:21,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 02:52:21,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2019-11-20 02:52:21,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 02:52:21,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:52:21,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-20 02:52:21,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:52:21,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-20 02:52:21,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:52:21,245 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 30 transitions. [2019-11-20 02:52:21,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:52:21,247 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 22 transitions. [2019-11-20 02:52:21,247 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-20 02:52:21,247 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-20 02:52:21,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2019-11-20 02:52:21,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:52:21,247 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-20 02:52:21,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2019-11-20 02:52:21,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 02:52:21,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 02:52:21,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2019-11-20 02:52:21,249 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-20 02:52:21,249 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-20 02:52:21,250 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 02:52:21,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2019-11-20 02:52:21,250 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:52:21,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:52:21,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:52:21,251 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:52:21,251 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 02:52:21,251 INFO L794 eck$LassoCheckResult]: Stem: 271#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 268#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 263#L524 assume !(main_~length1~0 < 1); 264#L524-2 assume !(main_~length2~0 < 1); 257#L527-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 258#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 272#L533-4 main_~i~1 := 0; 266#L537-3 assume !(main_~i~1 < main_~length2~0 - 1); 267#L537-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, cstrcmp_#t~mem6, cstrcmp_#t~mem3, cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, cstrcmp_#t~mem4, cstrcmp_#t~mem8, cstrcmp_#t~pre7.base, cstrcmp_#t~pre7.offset, cstrcmp_#t~mem9, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset; 265#L516-3 [2019-11-20 02:52:21,251 INFO L796 eck$LassoCheckResult]: Loop: 265#L516-3 call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post2.base, 1 + cstrcmp_#t~post2.offset;call cstrcmp_#t~mem4 := read~int(cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, 1); 259#L516-1 assume !!(cstrcmp_#t~mem3 == cstrcmp_#t~mem4);havoc cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post5.base, 1 + cstrcmp_#t~post5.offset;call cstrcmp_#t~mem6 := read~int(cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, 1); 260#L517 assume !(0 == cstrcmp_#t~mem6);havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset;havoc cstrcmp_#t~mem6; 265#L516-3 [2019-11-20 02:52:21,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:21,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2019-11-20 02:52:21,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:21,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018074071] [2019-11-20 02:52:21,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:21,298 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:21,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:21,298 INFO L82 PathProgramCache]: Analyzing trace with hash 77620, now seen corresponding path program 1 times [2019-11-20 02:52:21,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:21,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694939119] [2019-11-20 02:52:21,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:21,318 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:21,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:21,318 INFO L82 PathProgramCache]: Analyzing trace with hash -296047681, now seen corresponding path program 1 times [2019-11-20 02:52:21,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:21,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903517306] [2019-11-20 02:52:21,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:52:21,520 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 02:52:21,520 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903517306] [2019-11-20 02:52:21,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:52:21,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 02:52:21,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070483734] [2019-11-20 02:52:21,643 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2019-11-20 02:52:21,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:52:21,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 02:52:21,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-20 02:52:21,687 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand 7 states. [2019-11-20 02:52:21,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:52:21,772 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-11-20 02:52:21,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 02:52:21,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2019-11-20 02:52:21,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:52:21,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 22 transitions. [2019-11-20 02:52:21,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-20 02:52:21,774 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-20 02:52:21,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2019-11-20 02:52:21,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:52:21,775 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2019-11-20 02:52:21,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2019-11-20 02:52:21,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-20 02:52:21,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 02:52:21,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2019-11-20 02:52:21,777 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2019-11-20 02:52:21,777 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2019-11-20 02:52:21,777 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 02:52:21,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2019-11-20 02:52:21,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:52:21,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:52:21,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:52:21,778 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:52:21,778 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 02:52:21,779 INFO L794 eck$LassoCheckResult]: Stem: 328#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 325#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 320#L524 assume !(main_~length1~0 < 1); 321#L524-2 assume !(main_~length2~0 < 1); 314#L527-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 315#L533-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 326#L533-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 327#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 329#L533-4 main_~i~1 := 0; 323#L537-3 assume !(main_~i~1 < main_~length2~0 - 1); 324#L537-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, cstrcmp_#t~mem6, cstrcmp_#t~mem3, cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, cstrcmp_#t~mem4, cstrcmp_#t~mem8, cstrcmp_#t~pre7.base, cstrcmp_#t~pre7.offset, cstrcmp_#t~mem9, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset; 322#L516-3 [2019-11-20 02:52:21,779 INFO L796 eck$LassoCheckResult]: Loop: 322#L516-3 call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post2.base, 1 + cstrcmp_#t~post2.offset;call cstrcmp_#t~mem4 := read~int(cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, 1); 316#L516-1 assume !!(cstrcmp_#t~mem3 == cstrcmp_#t~mem4);havoc cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post5.base, 1 + cstrcmp_#t~post5.offset;call cstrcmp_#t~mem6 := read~int(cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, 1); 317#L517 assume !(0 == cstrcmp_#t~mem6);havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset;havoc cstrcmp_#t~mem6; 322#L516-3 [2019-11-20 02:52:21,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:21,779 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2019-11-20 02:52:21,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:21,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938143626] [2019-11-20 02:52:21,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:21,819 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:21,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:21,819 INFO L82 PathProgramCache]: Analyzing trace with hash 77620, now seen corresponding path program 2 times [2019-11-20 02:52:21,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:21,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931045006] [2019-11-20 02:52:21,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:21,831 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:21,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:21,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1311502365, now seen corresponding path program 1 times [2019-11-20 02:52:21,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:21,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8124922] [2019-11-20 02:52:21,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:52:22,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 02:52:22,042 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8124922] [2019-11-20 02:52:22,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:52:22,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 02:52:22,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038028263] [2019-11-20 02:52:22,174 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2019-11-20 02:52:22,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:52:22,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 02:52:22,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 02:52:22,218 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 9 states. [2019-11-20 02:52:22,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:52:22,331 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-20 02:52:22,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 02:52:22,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2019-11-20 02:52:22,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:52:22,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 17 states and 21 transitions. [2019-11-20 02:52:22,333 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-20 02:52:22,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-20 02:52:22,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2019-11-20 02:52:22,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:52:22,333 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-20 02:52:22,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2019-11-20 02:52:22,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-20 02:52:22,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 02:52:22,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2019-11-20 02:52:22,335 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-11-20 02:52:22,335 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-11-20 02:52:22,335 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 02:52:22,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2019-11-20 02:52:22,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:52:22,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:52:22,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:52:22,336 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:52:22,336 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 02:52:22,337 INFO L794 eck$LassoCheckResult]: Stem: 383#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 382#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 377#L524 assume !(main_~length1~0 < 1); 378#L524-2 assume !(main_~length2~0 < 1); 371#L527-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 372#L533-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 384#L533-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 385#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 386#L533-4 main_~i~1 := 0; 380#L537-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 375#L537-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 376#L537-3 assume !(main_~i~1 < main_~length2~0 - 1); 381#L537-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, cstrcmp_#t~mem6, cstrcmp_#t~mem3, cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, cstrcmp_#t~mem4, cstrcmp_#t~mem8, cstrcmp_#t~pre7.base, cstrcmp_#t~pre7.offset, cstrcmp_#t~mem9, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset; 379#L516-3 [2019-11-20 02:52:22,337 INFO L796 eck$LassoCheckResult]: Loop: 379#L516-3 call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post2.base, 1 + cstrcmp_#t~post2.offset;call cstrcmp_#t~mem4 := read~int(cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, 1); 373#L516-1 assume !!(cstrcmp_#t~mem3 == cstrcmp_#t~mem4);havoc cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post5.base, 1 + cstrcmp_#t~post5.offset;call cstrcmp_#t~mem6 := read~int(cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, 1); 374#L517 assume !(0 == cstrcmp_#t~mem6);havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset;havoc cstrcmp_#t~mem6; 379#L516-3 [2019-11-20 02:52:22,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:22,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2019-11-20 02:52:22,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:22,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614074393] [2019-11-20 02:52:22,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:22,375 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:22,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:22,381 INFO L82 PathProgramCache]: Analyzing trace with hash 77620, now seen corresponding path program 3 times [2019-11-20 02:52:22,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:22,381 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849807603] [2019-11-20 02:52:22,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:22,397 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:22,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:22,398 INFO L82 PathProgramCache]: Analyzing trace with hash -718433093, now seen corresponding path program 1 times [2019-11-20 02:52:22,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:52:22,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850328003] [2019-11-20 02:52:22,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:52:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:52:22,443 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:52:22,917 WARN L191 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 108 [2019-11-20 02:52:23,043 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-11-20 02:52:23,057 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:52:23,057 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:52:23,058 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:52:23,058 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:52:23,058 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:52:23,058 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:23,058 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:52:23,058 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:52:23,058 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-1.i_Iteration5_Lasso [2019-11-20 02:52:23,059 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:52:23,059 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:52:23,064 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 02:52:23,073 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 02:52:23,081 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 02:52:23,085 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 02:52:23,091 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 02:52:23,094 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 02:52:23,096 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 02:52:23,098 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 02:52:23,102 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 02:52:23,104 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 02:52:23,106 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 02:52:23,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:23,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:23,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:52:23,120 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 02:52:23,122 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 02:52:23,124 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 02:52:23,126 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 02:52:23,128 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 02:52:23,130 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 02:52:23,132 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 02:52:23,133 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 02:52:23,548 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2019-11-20 02:52:23,698 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-11-20 02:52:23,698 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 02:52:23,700 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 02:52:23,703 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 02:52:23,704 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 02:52:24,251 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:52:24,252 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,260 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 02:52:24,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,263 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,266 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 02:52:24,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,270 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,275 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 02:52:24,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,283 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 02:52:24,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,285 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:24,285 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:24,287 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,293 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 02:52:24,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,295 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,296 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,301 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 02:52:24,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,304 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,308 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 02:52:24,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,312 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:52:24,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,319 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,323 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 02:52:24,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,330 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 02:52:24,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,333 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:52:24,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:52:24,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,341 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:52:24,347 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 02:52:24,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,351 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,356 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 02:52:24,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,359 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,363 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 02:52:24,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,366 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,370 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 02:52:24,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:24,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:24,375 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:52:24,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,385 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,402 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 02:52:24,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,405 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:24,405 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:24,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,411 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 02:52:24,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,422 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 02:52:24,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,424 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,431 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 02:52:24,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:24,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:24,441 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,448 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 02:52:24,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:52:24,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:52:24,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:52:24,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,455 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 02:52:24,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,466 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:24,466 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:24,481 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:52:24,489 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 02:52:24,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:24,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,500 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:52:24,505 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 02:52:24,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:24,508 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:52:24,517 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 02:52:24,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,520 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:24,520 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,523 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:52:24,532 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 02:52:24,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:24,537 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,545 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:52:24,550 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 02:52:24,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,554 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:24,554 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,557 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:52:24,562 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 02:52:24,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,564 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 02:52:24,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,572 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-20 02:52:24,572 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,589 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,594 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 02:52:24,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:52:24,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:52:24,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:52:24,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:52:24,609 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:52:24,609 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:52:24,641 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:52:24,742 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2019-11-20 02:52:24,742 INFO L444 ModelExtractionUtils]: 13 out of 49 variables were initially zero. Simplification set additionally 33 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766ce04-fb5f-4bf9-8f63-c5d1fcfa15d9/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:52:24,747 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:52:24,750 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 02:52:24,750 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:52:24,750 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcmp_~s1.offset, v_rep(select #length ULTIMATE.start_cstrcmp_~s1.base)_1) = -1*ULTIMATE.start_cstrcmp_~s1.offset + 1*v_rep(select #length ULTIMATE.start_cstrcmp_~s1.base)_1 Supporting invariants [] [2019-11-20 02:52:24,828 INFO L297 tatePredicateManager]: 22 out of 22 supporting invariants were superfluous and have been removed [2019-11-20 02:52:24,829 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 02:52:24,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:52:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:52:24,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:52:24,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:52:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:52:24,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 02:52:24,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:52:24,894 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 02:52:24,894 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 02:52:24,894 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-11-20 02:52:24,910 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 20 states and 24 transitions. Complement of second has 6 states. [2019-11-20 02:52:24,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 02:52:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 02:52:24,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2019-11-20 02:52:24,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2019-11-20 02:52:24,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:52:24,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2019-11-20 02:52:24,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:52:24,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2019-11-20 02:52:24,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:52:24,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2019-11-20 02:52:24,913 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:52:24,913 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2019-11-20 02:52:24,913 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 02:52:24,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 02:52:24,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 02:52:24,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:52:24,914 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:52:24,914 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:52:24,914 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:52:24,914 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 02:52:24,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:52:24,914 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:52:24,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 02:52:24,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 02:52:24 BoogieIcfgContainer [2019-11-20 02:52:24,920 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 02:52:24,920 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:52:24,920 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:52:24,920 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:52:24,921 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:52:17" (3/4) ... [2019-11-20 02:52:24,923 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 02:52:24,924 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:52:24,925 INFO L168 Benchmark]: Toolchain (without parser) took 8176.03 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 269.0 MB). Free memory was 944.7 MB in the beginning and 842.9 MB in the end (delta: 101.9 MB). Peak memory consumption was 370.8 MB. Max. memory is 11.5 GB. [2019-11-20 02:52:24,925 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:52:24,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -137.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-20 02:52:24,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-20 02:52:24,926 INFO L168 Benchmark]: Boogie Preprocessor took 41.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:52:24,927 INFO L168 Benchmark]: RCFGBuilder took 440.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:52:24,927 INFO L168 Benchmark]: BuchiAutomizer took 7139.73 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 170.4 MB). Free memory was 1.1 GB in the beginning and 842.9 MB in the end (delta: 207.6 MB). Peak memory consumption was 378.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:52:24,927 INFO L168 Benchmark]: Witness Printer took 3.65 ms. Allocated memory is still 1.3 GB. Free memory is still 842.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:52:24,929 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 479.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -137.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 440.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7139.73 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 170.4 MB). Free memory was 1.1 GB in the beginning and 842.9 MB in the end (delta: 207.6 MB). Peak memory consumption was 378.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.65 ms. Allocated memory is still 1.3 GB. Free memory is still 842.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * s1 + unknown-#length-unknown[s1] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 6.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 68 SDtfs, 116 SDslu, 101 SDs, 0 SdLazy, 106 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital198 mio100 ax110 hnf98 lsp84 ukn73 mio100 lsp49 div100 bol100 ite100 ukn100 eq178 hnf89 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 6 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...