./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/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 46421108dc6473f7bf7bcbb7826a3247c1ccc8d1 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:22:21,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:22:21,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:22:21,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:22:21,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:22:21,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:22:21,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:22:21,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:22:21,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:22:21,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:22:21,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:22:21,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:22:21,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:22:21,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:22:21,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:22:21,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:22:21,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:22:21,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:22:21,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:22:21,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:22:21,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:22:21,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:22:21,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:22:21,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:22:21,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:22:21,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:22:21,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:22:21,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:22:21,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:22:21,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:22:21,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:22:21,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:22:21,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:22:21,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:22:21,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:22:21,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:22:21,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:22:21,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:22:21,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:22:21,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:22:21,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:22:21,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 14:22:21,782 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:22:21,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:22:21,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:22:21,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:22:21,783 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:22:21,783 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 14:22:21,784 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 14:22:21,784 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 14:22:21,784 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 14:22:21,784 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 14:22:21,784 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 14:22:21,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:22:21,784 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:22:21,784 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:22:21,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:22:21,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:22:21,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:22:21,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 14:22:21,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 14:22:21,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 14:22:21,785 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:22:21,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:22:21,785 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 14:22:21,786 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:22:21,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 14:22:21,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:22:21,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:22:21,786 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 14:22:21,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:22:21,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:22:21,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:22:21,787 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 14:22:21,787 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 14:22:21,788 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_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/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 -> 46421108dc6473f7bf7bcbb7826a3247c1ccc8d1 [2019-12-07 14:22:21,885 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:22:21,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:22:21,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:22:21,896 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:22:21,896 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:22:21,896 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i [2019-12-07 14:22:21,934 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/data/3b70fc5b5/5cdb6062ff6d493a8720a83f9be7b27a/FLAG88c538d3d [2019-12-07 14:22:22,403 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:22:22,403 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i [2019-12-07 14:22:22,413 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/data/3b70fc5b5/5cdb6062ff6d493a8720a83f9be7b27a/FLAG88c538d3d [2019-12-07 14:22:22,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/data/3b70fc5b5/5cdb6062ff6d493a8720a83f9be7b27a [2019-12-07 14:22:22,423 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:22:22,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:22:22,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:22:22,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:22:22,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:22:22,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:22:22" (1/1) ... [2019-12-07 14:22:22,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55dc4808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22, skipping insertion in model container [2019-12-07 14:22:22,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:22:22" (1/1) ... [2019-12-07 14:22:22,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:22:22,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:22:22,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:22:22,676 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:22:22,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:22:22,733 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:22:22,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22 WrapperNode [2019-12-07 14:22:22,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:22:22,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:22:22,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:22:22,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:22:22,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22" (1/1) ... [2019-12-07 14:22:22,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22" (1/1) ... [2019-12-07 14:22:22,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:22:22,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:22:22,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:22:22,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:22:22,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22" (1/1) ... [2019-12-07 14:22:22,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22" (1/1) ... [2019-12-07 14:22:22,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22" (1/1) ... [2019-12-07 14:22:22,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22" (1/1) ... [2019-12-07 14:22:22,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22" (1/1) ... [2019-12-07 14:22:22,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22" (1/1) ... [2019-12-07 14:22:22,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22" (1/1) ... [2019-12-07 14:22:22,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:22:22,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:22:22,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:22:22,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:22:22,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 14:22:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:22:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:22:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:22:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:22:22,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:22:22,999 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:22:22,999 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 14:22:23,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:23 BoogieIcfgContainer [2019-12-07 14:22:23,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:22:23,000 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 14:22:23,000 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 14:22:23,002 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 14:22:23,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:22:23,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 02:22:22" (1/3) ... [2019-12-07 14:22:23,004 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75826528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:22:23, skipping insertion in model container [2019-12-07 14:22:23,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:22:23,004 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:22" (2/3) ... [2019-12-07 14:22:23,004 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75826528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:22:23, skipping insertion in model container [2019-12-07 14:22:23,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:22:23,004 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:23" (3/3) ... [2019-12-07 14:22:23,005 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrspn-alloca-2.i [2019-12-07 14:22:23,033 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 14:22:23,033 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 14:22:23,033 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 14:22:23,033 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:22:23,033 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:22:23,033 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 14:22:23,033 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:22:23,033 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 14:22:23,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2019-12-07 14:22:23,056 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 14:22:23,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:22:23,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:22:23,060 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 14:22:23,060 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:22:23,060 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 14:22:23,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2019-12-07 14:22:23,061 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-12-07 14:22:23,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:22:23,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:22:23,062 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 14:22:23,062 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:22:23,067 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 19#L528true assume !(main_~length1~0 < 1); 5#L528-2true assume !(main_~length2~0 < 1); 15#L531-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 8#L537-3true [2019-12-07 14:22:23,067 INFO L796 eck$LassoCheckResult]: Loop: 8#L537-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 7#L537-2true main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 8#L537-3true [2019-12-07 14:22:23,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:23,071 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-12-07 14:22:23,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:23,077 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752090634] [2019-12-07 14:22:23,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:23,163 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:23,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:23,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-12-07 14:22:23,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:23,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533833363] [2019-12-07 14:22:23,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:23,176 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:23,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:23,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-12-07 14:22:23,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:23,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201986179] [2019-12-07 14:22:23,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:23,205 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:23,383 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:22:23,383 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:22:23,384 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:22:23,384 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:22:23,384 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:22:23,384 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,384 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:22:23,384 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:22:23,384 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration1_Lasso [2019-12-07 14:22:23,384 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:22:23,384 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:22:23,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:23,712 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:22:23,715 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:23,726 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:23,730 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:23,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:23,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:23,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:23,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,743 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:23,743 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:23,745 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:23,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:23,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:23,753 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,757 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:23,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:23,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:23,761 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,769 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:23,769 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:23,772 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,775 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:23,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:23,781 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:23,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:23,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:23,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,795 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:23,795 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:23,798 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,802 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:23,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:23,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:23,806 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,815 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:23,815 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:23,821 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:23,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,827 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:23,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:23,829 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,839 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:23,839 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:23,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:23,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:23,853 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,857 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,860 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:23,860 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:23,864 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:23,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:23,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:23,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:23,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:23,876 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:23,876 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:23,886 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:22:23,902 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-12-07 14:22:23,902 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:23,915 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:22:23,918 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:22:23,918 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:22:23,919 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 14:22:23,935 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-12-07 14:22:23,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:23,969 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:22:23,971 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:23,981 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:22:23,982 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:23,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:24,008 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 14:22:24,009 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states. Second operand 3 states. [2019-12-07 14:22:24,057 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states.. Second operand 3 states. Result 48 states and 67 transitions. Complement of second has 7 states. [2019-12-07 14:22:24,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 14:22:24,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:22:24,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 45 transitions. [2019-12-07 14:22:24,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 45 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 14:22:24,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:24,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 45 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 14:22:24,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:24,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 45 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 14:22:24,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:24,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 67 transitions. [2019-12-07 14:22:24,066 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 14:22:24,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 16 states and 22 transitions. [2019-12-07 14:22:24,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 14:22:24,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 14:22:24,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2019-12-07 14:22:24,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:22:24,071 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-12-07 14:22:24,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2019-12-07 14:22:24,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 14:22:24,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 14:22:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2019-12-07 14:22:24,090 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-12-07 14:22:24,090 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-12-07 14:22:24,090 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 14:22:24,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2019-12-07 14:22:24,091 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 14:22:24,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:22:24,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:22:24,091 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:24,092 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:22:24,092 INFO L794 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 150#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 151#L528 assume !(main_~length1~0 < 1); 142#L528-2 assume !(main_~length2~0 < 1); 143#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 146#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 147#L537-4 main_~i~1 := 0; 148#L541-3 [2019-12-07 14:22:24,092 INFO L796 eck$LassoCheckResult]: Loop: 148#L541-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 155#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 148#L541-3 [2019-12-07 14:22:24,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:24,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-12-07 14:22:24,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:24,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644914788] [2019-12-07 14:22:24,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:24,114 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:24,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:24,115 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-12-07 14:22:24,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:24,115 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674088987] [2019-12-07 14:22:24,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:24,127 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:24,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:24,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2019-12-07 14:22:24,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:24,128 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64060378] [2019-12-07 14:22:24,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:24,149 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:24,311 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:22:24,312 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:22:24,312 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:22:24,312 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:22:24,312 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:22:24,312 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:24,312 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:22:24,312 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:22:24,312 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration2_Lasso [2019-12-07 14:22:24,312 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:22:24,312 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:22:24,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:24,598 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:22:24,598 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:24,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:24,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:24,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:24,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:24,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:24,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:24,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:24,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:24,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:24,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:24,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:24,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:24,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:24,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:24,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:24,612 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:24,623 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:24,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:24,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:24,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:24,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:24,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:24,632 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:24,632 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:24,636 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:24,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:24,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:24,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:24,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:24,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:24,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:24,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:24,647 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:24,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:24,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:24,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:24,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:24,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:24,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:24,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:24,664 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:22:24,680 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-12-07 14:22:24,680 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_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:24,682 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:22:24,684 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 14:22:24,685 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:22:24,685 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2, ULTIMATE.start_main_~i~1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0.offset >= 0] [2019-12-07 14:22:24,704 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2019-12-07 14:22:24,708 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:22:24,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:24,733 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 14:22:24,734 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:24,746 WARN L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 14:22:24,746 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:24,761 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 14:22:24,761 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-12-07 14:22:24,795 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 23 states and 34 transitions. Complement of second has 7 states. [2019-12-07 14:22:24,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 14:22:24,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:22:24,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2019-12-07 14:22:24,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 14:22:24,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:24,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 14:22:24,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:24,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2019-12-07 14:22:24,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:24,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 34 transitions. [2019-12-07 14:22:24,798 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 14:22:24,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 17 states and 24 transitions. [2019-12-07 14:22:24,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-12-07 14:22:24,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-12-07 14:22:24,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2019-12-07 14:22:24,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:22:24,799 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-12-07 14:22:24,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2019-12-07 14:22:24,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 14:22:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 14:22:24,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2019-12-07 14:22:24,800 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-12-07 14:22:24,800 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-12-07 14:22:24,800 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 14:22:24,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2019-12-07 14:22:24,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 14:22:24,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:22:24,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:22:24,802 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:24,802 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 14:22:24,802 INFO L794 eck$LassoCheckResult]: Stem: 277#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 274#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 275#L528 assume !(main_~length1~0 < 1); 266#L528-2 assume !(main_~length2~0 < 1); 267#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 270#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 271#L537-4 main_~i~1 := 0; 272#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 264#L541-4 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);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 265#L522 [2019-12-07 14:22:24,802 INFO L796 eck$LassoCheckResult]: Loop: 265#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 273#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 278#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~mem5;havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset; 276#L521 assume cstrspn_~sc~0 == cstrspn_~c~0; 265#L522 [2019-12-07 14:22:24,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:24,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2019-12-07 14:22:24,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:24,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249590408] [2019-12-07 14:22:24,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:24,825 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:24,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:24,825 INFO L82 PathProgramCache]: Analyzing trace with hash 2312936, now seen corresponding path program 1 times [2019-12-07 14:22:24,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:24,826 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423045174] [2019-12-07 14:22:24,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:24,835 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:24,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:24,835 INFO L82 PathProgramCache]: Analyzing trace with hash -587636803, now seen corresponding path program 1 times [2019-12-07 14:22:24,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:24,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140979468] [2019-12-07 14:22:24,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:24,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:24,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140979468] [2019-12-07 14:22:24,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:22:24,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-12-07 14:22:24,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537491561] [2019-12-07 14:22:25,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:22:25,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 14:22:25,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:22:25,026 INFO L87 Difference]: Start difference. First operand 17 states and 24 transitions. cyclomatic complexity: 10 Second operand 9 states. [2019-12-07 14:22:25,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:22:25,115 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2019-12-07 14:22:25,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 14:22:25,116 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2019-12-07 14:22:25,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 14:22:25,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 24 transitions. [2019-12-07 14:22:25,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 14:22:25,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-12-07 14:22:25,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2019-12-07 14:22:25,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:22:25,117 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2019-12-07 14:22:25,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2019-12-07 14:22:25,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-12-07 14:22:25,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 14:22:25,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2019-12-07 14:22:25,119 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-12-07 14:22:25,119 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-12-07 14:22:25,119 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 14:22:25,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2019-12-07 14:22:25,120 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 14:22:25,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:22:25,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:22:25,120 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:25,120 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 14:22:25,120 INFO L794 eck$LassoCheckResult]: Stem: 338#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 335#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 336#L528 assume !(main_~length1~0 < 1); 327#L528-2 assume !(main_~length2~0 < 1); 328#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 331#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 332#L537-4 main_~i~1 := 0; 333#L541-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 340#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 341#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 325#L541-4 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);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 326#L522 [2019-12-07 14:22:25,120 INFO L796 eck$LassoCheckResult]: Loop: 326#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 334#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 339#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~mem5;havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset; 337#L521 assume cstrspn_~sc~0 == cstrspn_~c~0; 326#L522 [2019-12-07 14:22:25,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:25,121 INFO L82 PathProgramCache]: Analyzing trace with hash -2087704584, now seen corresponding path program 1 times [2019-12-07 14:22:25,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:25,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988604760] [2019-12-07 14:22:25,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:25,145 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:25,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:25,146 INFO L82 PathProgramCache]: Analyzing trace with hash 2312936, now seen corresponding path program 2 times [2019-12-07 14:22:25,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:25,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896668988] [2019-12-07 14:22:25,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:25,156 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:25,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1860214623, now seen corresponding path program 1 times [2019-12-07 14:22:25,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:25,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566879709] [2019-12-07 14:22:25,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:25,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 14:22:25,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566879709] [2019-12-07 14:22:25,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:22:25,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 14:22:25,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77654864] [2019-12-07 14:22:25,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:22:25,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 14:22:25,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:22:25,324 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 9 Second operand 8 states. [2019-12-07 14:22:25,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:22:25,399 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2019-12-07 14:22:25,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 14:22:25,399 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2019-12-07 14:22:25,400 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 14:22:25,400 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 36 transitions. [2019-12-07 14:22:25,400 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-12-07 14:22:25,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2019-12-07 14:22:25,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2019-12-07 14:22:25,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:22:25,401 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2019-12-07 14:22:25,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2019-12-07 14:22:25,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2019-12-07 14:22:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 14:22:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2019-12-07 14:22:25,402 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-12-07 14:22:25,403 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-12-07 14:22:25,403 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 14:22:25,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2019-12-07 14:22:25,403 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-12-07 14:22:25,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:22:25,403 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:22:25,403 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:25,404 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:22:25,404 INFO L794 eck$LassoCheckResult]: Stem: 408#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 404#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 405#L528 assume !(main_~length1~0 < 1); 394#L528-2 assume !(main_~length2~0 < 1); 395#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 398#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 399#L537-4 main_~i~1 := 0; 401#L541-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 411#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 412#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 392#L541-4 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);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 393#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 407#L520-3 [2019-12-07 14:22:25,404 INFO L796 eck$LassoCheckResult]: Loop: 407#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 413#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~mem5;havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset; 406#L521 assume !(cstrspn_~sc~0 == cstrspn_~c~0); 407#L520-3 [2019-12-07 14:22:25,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:25,404 INFO L82 PathProgramCache]: Analyzing trace with hash -294332619, now seen corresponding path program 1 times [2019-12-07 14:22:25,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:25,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357414137] [2019-12-07 14:22:25,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:25,420 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:25,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:25,421 INFO L82 PathProgramCache]: Analyzing trace with hash 78613, now seen corresponding path program 1 times [2019-12-07 14:22:25,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:25,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993513608] [2019-12-07 14:22:25,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:25,425 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:25,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:25,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1860214625, now seen corresponding path program 1 times [2019-12-07 14:22:25,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:25,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659706562] [2019-12-07 14:22:25,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:25,443 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:25,798 WARN L192 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 117 [2019-12-07 14:22:25,925 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-12-07 14:22:25,927 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:22:25,927 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:22:25,927 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:22:25,927 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:22:25,927 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:22:25,927 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:25,927 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:22:25,927 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:22:25,928 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration5_Lasso [2019-12-07 14:22:25,928 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:22:25,928 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:22:25,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:25,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:25,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:25,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:25,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:25,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:25,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:25,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:25,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:25,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,202 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-12-07 14:22:26,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:26,674 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:22:26,674 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:26,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:26,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:26,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:26,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:26,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:26,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:26,680 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:26,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:26,681 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:26,685 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:26,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:26,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:26,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:26,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:26,687 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:26,687 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:26,689 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:26,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:26,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:26,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:26,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:26,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:26,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:26,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:26,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:26,696 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:26,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:26,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:26,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:26,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:26,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:26,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:26,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:26,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:26,703 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:26,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:26,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:26,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:26,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:26,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:26,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:26,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:26,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:26,710 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:26,714 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:26,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:26,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:26,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:26,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:26,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:26,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:26,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:26,717 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:26,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:26,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:26,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:26,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:26,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:26,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:26,723 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:26,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:26,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:26,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:26,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:26,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:26,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:26,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:26,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:26,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:26,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:26,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:26,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:26,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:26,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:26,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:26,738 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:26,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:26,741 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:26,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:26,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:26,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:26,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:26,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:26,747 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:26,747 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:26,750 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:26,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:26,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:26,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:26,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:26,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:26,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:26,762 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:26,776 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:22:26,796 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-12-07 14:22:26,796 INFO L444 ModelExtractionUtils]: 16 out of 49 variables were initially zero. Simplification set additionally 30 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:26,799 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:22:26,802 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:22:26,802 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:22:26,802 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~spanp~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_3) = -1*ULTIMATE.start_cstrspn_~spanp~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_3 Supporting invariants [] [2019-12-07 14:22:26,859 INFO L297 tatePredicateManager]: 19 out of 20 supporting invariants were superfluous and have been removed [2019-12-07 14:22:26,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:22:26,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:26,888 INFO L264 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:22:26,888 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:26,907 WARN L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 14:22:26,907 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:26,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:26,920 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-12-07 14:22:26,920 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 33 transitions. cyclomatic complexity: 12 Second operand 5 states. [2019-12-07 14:22:26,955 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 33 transitions. cyclomatic complexity: 12. Second operand 5 states. Result 38 states and 46 transitions. Complement of second has 7 states. [2019-12-07 14:22:26,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:22:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 14:22:26,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-12-07 14:22:26,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 3 letters. [2019-12-07 14:22:26,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:26,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2019-12-07 14:22:26,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:26,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 6 letters. [2019-12-07 14:22:26,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:26,957 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 46 transitions. [2019-12-07 14:22:26,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 14:22:26,959 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 24 states and 30 transitions. [2019-12-07 14:22:26,959 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 14:22:26,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 14:22:26,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2019-12-07 14:22:26,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:22:26,959 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2019-12-07 14:22:26,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2019-12-07 14:22:26,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2019-12-07 14:22:26,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 14:22:26,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2019-12-07 14:22:26,961 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2019-12-07 14:22:26,961 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2019-12-07 14:22:26,961 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 14:22:26,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 29 transitions. [2019-12-07 14:22:26,961 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 14:22:26,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:22:26,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:22:26,962 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:26,962 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 14:22:26,962 INFO L794 eck$LassoCheckResult]: Stem: 630#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 624#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 625#L528 assume !(main_~length1~0 < 1); 616#L528-2 assume !(main_~length2~0 < 1); 617#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 620#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 618#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 619#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 621#L537-4 main_~i~1 := 0; 622#L541-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 634#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 635#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 614#L541-4 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);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 615#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 623#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 633#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~mem5;havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset; 626#L521 assume cstrspn_~sc~0 == cstrspn_~c~0; 627#L522 [2019-12-07 14:22:26,962 INFO L796 eck$LassoCheckResult]: Loop: 627#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 636#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 631#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~mem5;havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset; 632#L521 assume cstrspn_~sc~0 == cstrspn_~c~0; 627#L522 [2019-12-07 14:22:26,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:26,962 INFO L82 PathProgramCache]: Analyzing trace with hash -796682687, now seen corresponding path program 1 times [2019-12-07 14:22:26,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:26,962 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35251864] [2019-12-07 14:22:26,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:26,983 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:26,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:26,984 INFO L82 PathProgramCache]: Analyzing trace with hash 2312936, now seen corresponding path program 3 times [2019-12-07 14:22:26,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:26,984 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362623199] [2019-12-07 14:22:26,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:26,989 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:26,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:26,989 INFO L82 PathProgramCache]: Analyzing trace with hash 477217064, now seen corresponding path program 2 times [2019-12-07 14:22:26,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:26,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263897809] [2019-12-07 14:22:26,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:27,156 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 14:22:27,156 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263897809] [2019-12-07 14:22:27,156 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644335363] [2019-12-07 14:22:27,156 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:22:27,199 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 14:22:27,199 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:22:27,200 INFO L264 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 35 conjunts are in the unsatisfiable core [2019-12-07 14:22:27,201 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:27,221 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-12-07 14:22:27,221 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:22:27,224 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:22:27,224 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:22:27,224 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:8 [2019-12-07 14:22:27,273 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 21 [2019-12-07 14:22:27,273 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:22:27,279 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:22:27,280 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-12-07 14:22:27,280 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:47, output treesize:31 [2019-12-07 14:22:27,351 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:22:27,351 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 23 [2019-12-07 14:22:27,352 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-12-07 14:22:27,364 INFO L614 ElimStorePlain]: treesize reduction 10, result has 58.3 percent of original size [2019-12-07 14:22:27,364 INFO L534 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:22:27,365 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:40, output treesize:3 [2019-12-07 14:22:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 14:22:27,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:22:27,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-12-07 14:22:27,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434116922] [2019-12-07 14:22:27,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:22:27,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-12-07 14:22:27,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-12-07 14:22:27,429 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. cyclomatic complexity: 10 Second operand 17 states. [2019-12-07 14:22:27,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:22:27,787 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2019-12-07 14:22:27,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 14:22:27,787 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 52 transitions. [2019-12-07 14:22:27,788 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 14:22:27,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 43 states and 52 transitions. [2019-12-07 14:22:27,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2019-12-07 14:22:27,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2019-12-07 14:22:27,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 52 transitions. [2019-12-07 14:22:27,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:22:27,789 INFO L688 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2019-12-07 14:22:27,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 52 transitions. [2019-12-07 14:22:27,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2019-12-07 14:22:27,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-12-07 14:22:27,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2019-12-07 14:22:27,792 INFO L711 BuchiCegarLoop]: Abstraction has 40 states and 49 transitions. [2019-12-07 14:22:27,792 INFO L591 BuchiCegarLoop]: Abstraction has 40 states and 49 transitions. [2019-12-07 14:22:27,792 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 14:22:27,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 49 transitions. [2019-12-07 14:22:27,792 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-12-07 14:22:27,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:22:27,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:22:27,793 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:27,793 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:22:27,793 INFO L794 eck$LassoCheckResult]: Stem: 797#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 792#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 793#L528 assume !(main_~length1~0 < 1); 782#L528-2 assume !(main_~length2~0 < 1); 783#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 786#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 784#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 785#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 787#L537-4 main_~i~1 := 0; 789#L541-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 801#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 802#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 780#L541-4 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);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 781#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 803#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 799#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~mem5;havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset; 800#L521 assume cstrspn_~sc~0 == cstrspn_~c~0; 790#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 791#L520-3 [2019-12-07 14:22:27,793 INFO L796 eck$LassoCheckResult]: Loop: 791#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 798#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~mem5;havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset; 794#L521 assume !(cstrspn_~sc~0 == cstrspn_~c~0); 791#L520-3 [2019-12-07 14:22:27,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:27,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1072640524, now seen corresponding path program 3 times [2019-12-07 14:22:27,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:27,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846043903] [2019-12-07 14:22:27,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:27,812 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:27,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:27,813 INFO L82 PathProgramCache]: Analyzing trace with hash 78613, now seen corresponding path program 2 times [2019-12-07 14:22:27,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:27,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512342685] [2019-12-07 14:22:27,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:27,816 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:27,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:27,817 INFO L82 PathProgramCache]: Analyzing trace with hash 477217066, now seen corresponding path program 1 times [2019-12-07 14:22:27,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:27,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429249018] [2019-12-07 14:22:27,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:27,835 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:28,633 WARN L192 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 163 [2019-12-07 14:22:28,815 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-12-07 14:22:28,817 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:22:28,817 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:22:28,817 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:22:28,817 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:22:28,818 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:22:28,818 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:28,818 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:22:28,818 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:22:28,818 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration7_Lasso [2019-12-07 14:22:28,818 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:22:28,818 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:22:28,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:28,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:29,348 WARN L192 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 105 [2019-12-07 14:22:29,490 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2019-12-07 14:22:30,048 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:22:30,048 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,062 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,068 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,071 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,074 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:30,074 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:30,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,098 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:30,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:30,108 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,111 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,125 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,125 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,126 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,131 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:30,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:30,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,140 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,145 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:30,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:30,148 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/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 [2019-12-07 14:22:30,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,153 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/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 [2019-12-07 14:22:30,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,163 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,166 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,169 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,175 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:30,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:30,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:30,181 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,187 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:30,187 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:30,189 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,195 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:30,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:30,198 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,203 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:30,203 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:30,206 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,212 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:30,212 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:30,214 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:30,221 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:30,225 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,230 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-12-07 14:22:30,230 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2019-12-07 14:22:30,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,261 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2019-12-07 14:22:30,261 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2019-12-07 14:22:30,354 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:30,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:30,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:30,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:30,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:30,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:30,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:30,395 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:22:30,421 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-12-07 14:22:30,421 INFO L444 ModelExtractionUtils]: 8 out of 61 variables were initially zero. Simplification set additionally 50 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:30,424 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:22:30,427 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:22:30,428 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:22:30,428 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~spanp~0.offset, v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_2) = -1*ULTIMATE.start_cstrspn_~spanp~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_2 Supporting invariants [] [2019-12-07 14:22:30,601 INFO L297 tatePredicateManager]: 46 out of 48 supporting invariants were superfluous and have been removed [2019-12-07 14:22:30,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:22:30,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:30,637 INFO L264 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:22:30,638 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:30,662 WARN L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 14:22:30,662 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:30,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:30,677 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-12-07 14:22:30,678 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16 Second operand 5 states. [2019-12-07 14:22:30,708 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16. Second operand 5 states. Result 49 states and 58 transitions. Complement of second has 7 states. [2019-12-07 14:22:30,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:22:30,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 14:22:30,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-12-07 14:22:30,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 18 letters. Loop has 3 letters. [2019-12-07 14:22:30,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:30,710 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 14:22:30,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:30,748 INFO L264 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:22:30,749 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:30,773 WARN L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 14:22:30,773 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:30,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:30,789 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2019-12-07 14:22:30,789 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16 Second operand 5 states. [2019-12-07 14:22:30,826 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16. Second operand 5 states. Result 49 states and 60 transitions. Complement of second has 7 states. [2019-12-07 14:22:30,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:22:30,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 14:22:30,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2019-12-07 14:22:30,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 18 letters. Loop has 3 letters. [2019-12-07 14:22:30,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:30,827 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 14:22:30,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:30,857 INFO L264 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:22:30,858 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:30,878 WARN L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 14:22:30,878 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:30,893 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-12-07 14:22:30,893 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16 Second operand 5 states. [2019-12-07 14:22:30,921 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16. Second operand 5 states. Result 54 states and 64 transitions. Complement of second has 6 states. [2019-12-07 14:22:30,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:22:30,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 14:22:30,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2019-12-07 14:22:30,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 18 letters. Loop has 3 letters. [2019-12-07 14:22:30,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:30,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 21 letters. Loop has 3 letters. [2019-12-07 14:22:30,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:30,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 18 letters. Loop has 6 letters. [2019-12-07 14:22:30,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:30,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 64 transitions. [2019-12-07 14:22:30,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 14:22:30,925 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 27 states and 33 transitions. [2019-12-07 14:22:30,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 14:22:30,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-12-07 14:22:30,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 33 transitions. [2019-12-07 14:22:30,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:22:30,925 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-12-07 14:22:30,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 33 transitions. [2019-12-07 14:22:30,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2019-12-07 14:22:30,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 14:22:30,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2019-12-07 14:22:30,927 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2019-12-07 14:22:30,927 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2019-12-07 14:22:30,927 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-12-07 14:22:30,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2019-12-07 14:22:30,928 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 14:22:30,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:22:30,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:22:30,929 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:30,929 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 14:22:30,929 INFO L794 eck$LassoCheckResult]: Stem: 1428#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1423#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 1424#L528 assume !(main_~length1~0 < 1); 1414#L528-2 assume !(main_~length2~0 < 1); 1415#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 1418#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1416#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1417#L537-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1419#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1432#L537-3 assume !(main_~i~0 < main_~length1~0 - 1); 1420#L537-4 main_~i~1 := 0; 1421#L541-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 1430#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 1431#L541-3 assume !(main_~i~1 < main_~length2~0 - 1); 1412#L541-4 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);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_#t~post4.base, cstrspn_#t~post4.offset, cstrspn_#t~mem5, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~p~0.base, cstrspn_~p~0.offset, cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset, cstrspn_~c~0, cstrspn_~sc~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset;havoc cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;havoc cstrspn_~c~0;havoc cstrspn_~sc~0; 1413#L522 [2019-12-07 14:22:30,929 INFO L796 eck$LassoCheckResult]: Loop: 1413#L522 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~p~0.base, cstrspn_~p~0.offset;cstrspn_~p~0.base, cstrspn_~p~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;call cstrspn_#t~mem3 := read~int(cstrspn_#t~post2.base, cstrspn_#t~post2.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem3;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset;havoc cstrspn_#t~mem3;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset; 1422#L520-3 cstrspn_#t~post4.base, cstrspn_#t~post4.offset := cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset;cstrspn_~spanp~0.base, cstrspn_~spanp~0.offset := cstrspn_#t~post4.base, 1 + cstrspn_#t~post4.offset;call cstrspn_#t~mem5 := read~int(cstrspn_#t~post4.base, cstrspn_#t~post4.offset, 1);cstrspn_~sc~0 := cstrspn_#t~mem5; 1429#L520-1 assume !!(0 != cstrspn_~sc~0);havoc cstrspn_#t~mem5;havoc cstrspn_#t~post4.base, cstrspn_#t~post4.offset; 1425#L521 assume cstrspn_~sc~0 == cstrspn_~c~0; 1413#L522 [2019-12-07 14:22:30,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:30,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1523394364, now seen corresponding path program 1 times [2019-12-07 14:22:30,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:30,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144864327] [2019-12-07 14:22:30,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:30,943 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:30,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:30,944 INFO L82 PathProgramCache]: Analyzing trace with hash 2312936, now seen corresponding path program 4 times [2019-12-07 14:22:30,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:30,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363143163] [2019-12-07 14:22:30,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:30,948 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:30,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:30,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1430543523, now seen corresponding path program 4 times [2019-12-07 14:22:30,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:30,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383841184] [2019-12-07 14:22:30,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:30,970 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:31,665 WARN L192 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 125 [2019-12-07 14:22:31,855 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-12-07 14:22:31,858 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:22:31,858 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:22:31,858 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:22:31,858 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:22:31,858 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:22:31,858 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:31,858 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:22:31,858 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:22:31,858 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration8_Lasso [2019-12-07 14:22:31,858 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:22:31,858 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:22:31,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:31,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:32,178 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-12-07 14:22:32,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:32,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:32,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:32,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:32,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:32,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:32,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:22:32,636 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:22:32,636 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:32,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:32,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:32,641 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:32,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:32,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:32,648 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:32,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:32,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:32,661 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:32,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:32,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:32,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:32,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:32,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:32,675 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:32,681 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:32,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,686 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:32,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:32,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:32,688 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,691 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:32,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,693 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:32,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:32,694 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:32,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:32,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:32,700 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:32,707 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:32,709 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:32,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:32,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:32,716 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:32,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:32,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:32,722 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:32,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:22:32,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:32,729 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:32,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:32,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,746 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:32,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:32,754 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:22:32,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,759 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 14:22:32,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,761 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 14:22:32,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:22:32,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,769 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:32,770 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:32,772 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,775 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:22:32,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:22:32,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:22:32,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:22:32,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:22:32,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:22:32,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:22:32,791 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:22:32,822 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-12-07 14:22:32,822 INFO L444 ModelExtractionUtils]: 20 out of 34 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c33467c5-5e7f-4fb5-996d-e9fad9e6843e/bin/uautomizer/z3 Starting monitored process 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:22:32,825 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:22:32,826 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:22:32,826 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:22:32,827 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2, ULTIMATE.start_cstrspn_~p~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 - 1*ULTIMATE.start_cstrspn_~p~0.offset Supporting invariants [] [2019-12-07 14:22:32,882 INFO L297 tatePredicateManager]: 19 out of 20 supporting invariants were superfluous and have been removed [2019-12-07 14:22:32,884 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:22:32,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:32,908 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:22:32,909 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:32,915 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:22:32,915 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:22:32,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:32,925 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 14:22:32,926 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-12-07 14:22:32,940 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 4 states. [2019-12-07 14:22:32,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:22:32,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:22:32,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2019-12-07 14:22:32,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 15 letters. Loop has 4 letters. [2019-12-07 14:22:32,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:32,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 19 letters. Loop has 4 letters. [2019-12-07 14:22:32,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:32,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 15 letters. Loop has 8 letters. [2019-12-07 14:22:32,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:22:32,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2019-12-07 14:22:32,942 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:22:32,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2019-12-07 14:22:32,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 14:22:32,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 14:22:32,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 14:22:32,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:22:32,943 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:22:32,943 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:22:32,943 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:22:32,943 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-12-07 14:22:32,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:22:32,943 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:22:32,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 14:22:32,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 02:22:32 BoogieIcfgContainer [2019-12-07 14:22:32,948 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 14:22:32,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:22:32,949 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:22:32,949 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:22:32,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:23" (3/4) ... [2019-12-07 14:22:32,952 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:22:32,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:22:32,952 INFO L168 Benchmark]: Toolchain (without parser) took 10528.52 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 283.1 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -202.0 MB). Peak memory consumption was 81.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:32,953 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 957.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:22:32,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:32,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.88 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: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:32,953 INFO L168 Benchmark]: Boogie Preprocessor took 19.12 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: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:32,954 INFO L168 Benchmark]: RCFGBuilder took 217.08 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:32,954 INFO L168 Benchmark]: BuchiAutomizer took 9947.98 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 174.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -83.7 MB). Peak memory consumption was 90.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:32,954 INFO L168 Benchmark]: Witness Printer took 3.28 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:22:32,955 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 957.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.88 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: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.12 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: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 217.08 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9947.98 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 174.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -83.7 MB). Peak memory consumption was 90.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.28 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 8 terminating modules (3 trivial, 4 deterministic, 1 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 * spanp + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * p and consists of 3 locations. One nondeterministic module has affine ranking function -1 * spanp + unknown-#length-unknown[nondetString2] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.9s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 8.6s. Construction of modules took 0.2s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 14 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 40 states and ocurred in iteration 6. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 163 SDtfs, 268 SDslu, 342 SDs, 0 SdLazy, 307 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital265 mio100 ax108 hnf99 lsp87 ukn71 mio100 lsp45 div100 bol100 ite100 ukn100 eq185 hnf86 smp95 dnf100 smp100 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 128ms VariablesStem: 10 VariablesLoop: 9 DisjunctsStem: 2 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 56 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...