./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrncpy_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrncpy_diffterm_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 64bit --witnessprinter.graph.data.programhash 42c24f3b8e86bd7db4a5522885bfbc1daa3bcc95 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 10:20:09,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:20:09,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:20:09,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:20:09,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:20:09,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:20:09,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:20:09,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:20:09,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:20:09,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:20:09,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:20:09,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:20:09,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:20:09,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:20:09,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:20:09,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:20:09,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:20:09,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:20:09,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:20:09,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:20:09,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:20:09,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:20:09,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:20:09,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:20:09,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:20:09,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:20:09,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:20:09,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:20:09,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:20:09,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:20:09,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:20:09,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:20:09,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:20:09,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:20:09,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:20:09,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:20:09,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:20:09,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:20:09,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:20:09,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:20:09,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:20:09,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 10:20:09,770 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:20:09,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:20:09,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:20:09,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:20:09,771 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:20:09,771 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 10:20:09,771 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 10:20:09,771 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 10:20:09,772 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 10:20:09,772 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 10:20:09,772 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 10:20:09,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:20:09,772 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:20:09,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:20:09,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:20:09,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 10:20:09,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 10:20:09,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 10:20:09,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:20:09,773 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 10:20:09,773 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:20:09,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 10:20:09,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:20:09,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:20:09,774 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 10:20:09,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:20:09,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:20:09,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:20:09,774 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 10:20:09,775 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 10:20:09,775 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_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42c24f3b8e86bd7db4a5522885bfbc1daa3bcc95 [2019-12-07 10:20:09,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:20:09,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:20:09,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:20:09,891 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:20:09,891 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:20:09,892 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrncpy_diffterm_alloca.i [2019-12-07 10:20:09,930 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/bin/uautomizer/data/75fc86454/83316c4f7c8d4212be114bebea738c37/FLAG5e8029345 [2019-12-07 10:20:10,411 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:20:10,411 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/sv-benchmarks/c/termination-15/cstrncpy_diffterm_alloca.i [2019-12-07 10:20:10,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/bin/uautomizer/data/75fc86454/83316c4f7c8d4212be114bebea738c37/FLAG5e8029345 [2019-12-07 10:20:10,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/bin/uautomizer/data/75fc86454/83316c4f7c8d4212be114bebea738c37 [2019-12-07 10:20:10,428 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:20:10,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:20:10,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:20:10,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:20:10,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:20:10,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:20:10" (1/1) ... [2019-12-07 10:20:10,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea06886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10, skipping insertion in model container [2019-12-07 10:20:10,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:20:10" (1/1) ... [2019-12-07 10:20:10,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:20:10,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:20:10,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:20:10,686 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:20:10,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:20:10,764 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:20:10,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10 WrapperNode [2019-12-07 10:20:10,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:20:10,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:20:10,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:20:10,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:20:10,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10" (1/1) ... [2019-12-07 10:20:10,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10" (1/1) ... [2019-12-07 10:20:10,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:20:10,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:20:10,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:20:10,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:20:10,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10" (1/1) ... [2019-12-07 10:20:10,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10" (1/1) ... [2019-12-07 10:20:10,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10" (1/1) ... [2019-12-07 10:20:10,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10" (1/1) ... [2019-12-07 10:20:10,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10" (1/1) ... [2019-12-07 10:20:10,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10" (1/1) ... [2019-12-07 10:20:10,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10" (1/1) ... [2019-12-07 10:20:10,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:20:10,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:20:10,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:20:10,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:20:10,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 10:20:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 10:20:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:20:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:20:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:20:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:20:11,002 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:20:11,002 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 10:20:11,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:20:11 BoogieIcfgContainer [2019-12-07 10:20:11,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:20:11,003 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 10:20:11,003 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 10:20:11,005 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 10:20:11,006 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:20:11,006 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 10:20:10" (1/3) ... [2019-12-07 10:20:11,007 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cda1bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:20:11, skipping insertion in model container [2019-12-07 10:20:11,007 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:20:11,007 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:20:10" (2/3) ... [2019-12-07 10:20:11,007 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cda1bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:20:11, skipping insertion in model container [2019-12-07 10:20:11,007 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:20:11,007 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:20:11" (3/3) ... [2019-12-07 10:20:11,008 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrncpy_diffterm_alloca.i [2019-12-07 10:20:11,035 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 10:20:11,035 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 10:20:11,036 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 10:20:11,036 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:20:11,036 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:20:11,036 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 10:20:11,036 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:20:11,036 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 10:20:11,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-12-07 10:20:11,059 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 10:20:11,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:20:11,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:20:11,064 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 10:20:11,064 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:20:11,064 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 10:20:11,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-12-07 10:20:11,065 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 10:20:11,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:20:11,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:20:11,066 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 10:20:11,066 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:20:11,071 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet211, main_#t~nondet212, main_#t~malloc213.base, main_#t~malloc213.offset, main_#t~malloc214.base, main_#t~malloc214.offset, main_#t~ret215.base, main_#t~ret215.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~n~0 := main_#t~nondet212;havoc main_#t~nondet212; 4#L385true assume !(main_~length~0 < 1); 7#L385-2true assume !(main_~n~0 < 1); 3#L388-1true call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(49, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset, cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post205, cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset, cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset, cstrncpy_#t~mem208, cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset, cstrncpy_#t~post209, cstrncpy_~s1.base, cstrncpy_~s1.offset, cstrncpy_~s2.base, cstrncpy_~s2.offset, cstrncpy_~n, cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset, cstrncpy_~src~0.base, cstrncpy_~src~0.offset, cstrncpy_~us~0.base, cstrncpy_~us~0.offset, cstrncpy_~n2~0;cstrncpy_~s1.base, cstrncpy_~s1.offset := cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset;cstrncpy_~s2.base, cstrncpy_~s2.offset := cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset;cstrncpy_~n := cstrncpy_#in~n;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_~s1.base, cstrncpy_~s1.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_~s2.base, cstrncpy_~s2.offset;havoc cstrncpy_~us~0.base, cstrncpy_~us~0.offset;havoc cstrncpy_~n2~0; 14#L370-2true [2019-12-07 10:20:11,071 INFO L796 eck$LassoCheckResult]: Loop: 14#L370-2true assume !!(cstrncpy_~n > 0);cstrncpy_#t~post205 := cstrncpy_~n;cstrncpy_~n := cstrncpy_#t~post205 - 1;havoc cstrncpy_#t~post205;cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_#t~post206.base, 1 + cstrncpy_#t~post206.offset;cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset := cstrncpy_~src~0.base, cstrncpy_~src~0.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_#t~post207.base, 1 + cstrncpy_#t~post207.offset;call cstrncpy_#t~mem208 := read~int(cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset, 1);call write~int(cstrncpy_#t~mem208, cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset, 1); 9#L372true assume !(49 == cstrncpy_#t~mem208);havoc cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset;havoc cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset;havoc cstrncpy_#t~mem208; 14#L370-2true [2019-12-07 10:20:11,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:20:11,075 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-12-07 10:20:11,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:20:11,083 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040763969] [2019-12-07 10:20:11,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:20:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:20:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:20:11,189 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:20:11,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:20:11,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1747, now seen corresponding path program 1 times [2019-12-07 10:20:11,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:20:11,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183434579] [2019-12-07 10:20:11,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:20:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:20:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:20:11,207 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:20:11,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:20:11,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935768, now seen corresponding path program 1 times [2019-12-07 10:20:11,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:20:11,208 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885267023] [2019-12-07 10:20:11,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:20:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:20:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:20:11,261 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:20:11,557 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2019-12-07 10:20:11,649 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:20:11,649 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:20:11,649 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:20:11,649 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:20:11,650 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:20:11,650 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:20:11,650 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:20:11,650 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:20:11,650 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy_diffterm_alloca.i_Iteration1_Lasso [2019-12-07 10:20:11,650 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:20:11,651 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:20:11,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:20:11,680 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 10:20:11,681 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 10:20:11,683 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 10:20:11,686 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 10:20:11,910 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-12-07 10:20:12,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:20:12,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:20:12,019 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 10:20:12,020 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 10:20:12,022 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 10:20:12,024 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 10:20:12,026 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 10:20:12,028 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 10:20:12,030 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 10:20:12,031 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 10:20:12,032 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 10:20:12,034 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 10:20:12,035 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 10:20:12,037 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 10:20:12,038 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 10:20:12,040 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 10:20:12,042 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 10:20:12,393 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:20:12,397 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:12,401 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 10:20:12,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:12,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:20:12,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:12,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:12,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:12,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:20:12,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:20:12,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:12,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:20:12,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:12,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:20:12,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:12,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:12,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:12,414 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:20:12,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:20:12,415 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:12,420 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 10:20:12,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:12,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:20:12,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:12,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:12,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:12,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:20:12,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:20:12,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:12,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:20:12,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:12,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:12,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:12,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:12,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:20:12,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:20:12,435 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:12,439 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 10:20:12,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:12,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:20:12,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:12,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:12,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:12,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:20:12,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:20:12,443 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:12,447 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 10:20:12,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:12,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:12,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:12,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:12,450 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:20:12,450 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:20:12,453 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:12,457 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 10:20:12,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:12,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:12,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:12,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:12,468 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:20:12,468 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:20:12,480 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:20:12,497 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 10:20:12,497 INFO L444 ModelExtractionUtils]: 21 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_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:12,501 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:20:12,504 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 10:20:12,504 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:20:12,505 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~n) = 1*ULTIMATE.start_cstrncpy_~n Supporting invariants [] [2019-12-07 10:20:12,553 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2019-12-07 10:20:12,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:20:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:20:12,591 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:20:12,592 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:20:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:20:12,604 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:20:12,604 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:20:12,618 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 10:20:12,629 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 10:20:12,630 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2019-12-07 10:20:12,659 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 30 states and 40 transitions. Complement of second has 5 states. [2019-12-07 10:20:12,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:20:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:20:12,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2019-12-07 10:20:12,662 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 10:20:12,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:20:12,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 10:20:12,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:20:12,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 10:20:12,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:20:12,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2019-12-07 10:20:12,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 10:20:12,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 11 states and 14 transitions. [2019-12-07 10:20:12,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-12-07 10:20:12,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-12-07 10:20:12,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-12-07 10:20:12,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:20:12,670 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 10:20:12,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-12-07 10:20:12,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-12-07 10:20:12,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 10:20:12,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-12-07 10:20:12,688 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 10:20:12,688 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 10:20:12,688 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 10:20:12,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2019-12-07 10:20:12,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 10:20:12,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:20:12,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:20:12,689 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:20:12,689 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:20:12,689 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 144#L-1 havoc main_#res;havoc main_#t~nondet211, main_#t~nondet212, main_#t~malloc213.base, main_#t~malloc213.offset, main_#t~malloc214.base, main_#t~malloc214.offset, main_#t~ret215.base, main_#t~ret215.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~n~0 := main_#t~nondet212;havoc main_#t~nondet212; 145#L385 assume !(main_~length~0 < 1); 150#L385-2 assume !(main_~n~0 < 1); 148#L388-1 call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(49, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset, cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post205, cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset, cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset, cstrncpy_#t~mem208, cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset, cstrncpy_#t~post209, cstrncpy_~s1.base, cstrncpy_~s1.offset, cstrncpy_~s2.base, cstrncpy_~s2.offset, cstrncpy_~n, cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset, cstrncpy_~src~0.base, cstrncpy_~src~0.offset, cstrncpy_~us~0.base, cstrncpy_~us~0.offset, cstrncpy_~n2~0;cstrncpy_~s1.base, cstrncpy_~s1.offset := cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset;cstrncpy_~s2.base, cstrncpy_~s2.offset := cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset;cstrncpy_~n := cstrncpy_#in~n;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_~s1.base, cstrncpy_~s1.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_~s2.base, cstrncpy_~s2.offset;havoc cstrncpy_~us~0.base, cstrncpy_~us~0.offset;havoc cstrncpy_~n2~0; 149#L370-2 assume !!(cstrncpy_~n > 0);cstrncpy_#t~post205 := cstrncpy_~n;cstrncpy_~n := cstrncpy_#t~post205 - 1;havoc cstrncpy_#t~post205;cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_#t~post206.base, 1 + cstrncpy_#t~post206.offset;cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset := cstrncpy_~src~0.base, cstrncpy_~src~0.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_#t~post207.base, 1 + cstrncpy_#t~post207.offset;call cstrncpy_#t~mem208 := read~int(cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset, 1);call write~int(cstrncpy_#t~mem208, cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset, 1); 141#L372 assume 49 == cstrncpy_#t~mem208;havoc cstrncpy_#t~post207.base, cstrncpy_#t~post207.offset;havoc cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset;havoc cstrncpy_#t~mem208;cstrncpy_~us~0.base, cstrncpy_~us~0.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~n2~0 := cstrncpy_~n; 143#L375-3 [2019-12-07 10:20:12,690 INFO L796 eck$LassoCheckResult]: Loop: 143#L375-3 cstrncpy_#t~post209 := cstrncpy_~n2~0;cstrncpy_~n2~0 := cstrncpy_#t~post209 - 1; 146#L375-1 assume !!(0 != cstrncpy_#t~post209);havoc cstrncpy_#t~post209;cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset := cstrncpy_~us~0.base, cstrncpy_~us~0.offset;cstrncpy_~us~0.base, cstrncpy_~us~0.offset := cstrncpy_#t~post210.base, 1 + cstrncpy_#t~post210.offset;call write~int(49, cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset, 1);havoc cstrncpy_#t~post210.base, cstrncpy_#t~post210.offset; 143#L375-3 [2019-12-07 10:20:12,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:20:12,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935753, now seen corresponding path program 1 times [2019-12-07 10:20:12,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:20:12,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767633596] [2019-12-07 10:20:12,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:20:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:20:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:20:12,718 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:20:12,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:20:12,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 1 times [2019-12-07 10:20:12,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:20:12,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710255197] [2019-12-07 10:20:12,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:20:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:20:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:20:12,725 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:20:12,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:20:12,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1298472078, now seen corresponding path program 1 times [2019-12-07 10:20:12,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:20:12,726 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707537642] [2019-12-07 10:20:12,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:20:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:20:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:20:12,755 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:20:13,135 WARN L192 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 128 [2019-12-07 10:20:13,269 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-12-07 10:20:13,271 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:20:13,271 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:20:13,271 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:20:13,271 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:20:13,271 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:20:13,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:20:13,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:20:13,272 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:20:13,272 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy_diffterm_alloca.i_Iteration2_Lasso [2019-12-07 10:20:13,272 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:20:13,272 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:20:13,275 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 10:20:13,277 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 10:20:13,278 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 10:20:13,279 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 10:20:13,281 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 10:20:13,282 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 10:20:13,512 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-12-07 10:20:13,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:20:13,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:20:13,585 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 10:20:13,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:20:13,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:20:13,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:20:13,591 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 10:20:13,591 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 10:20:13,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:20:13,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:20:13,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:20:13,596 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 10:20:13,597 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 10:20:13,598 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 10:20:14,000 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:20:14,000 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,007 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 10:20:14,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:20:14,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:14,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,008 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:20:14,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:20:14,009 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,013 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 10:20:14,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:20:14,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:14,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,015 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:20:14,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:20:14,017 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,021 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 10:20:14,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:20:14,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:14,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:20:14,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:20:14,024 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,028 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 10:20:14,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:20:14,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:14,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:20:14,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:20:14,031 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,035 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 10:20:14,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:14,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,037 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:20:14,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:20:14,040 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,044 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 10:20:14,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:20:14,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:14,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:20:14,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:20:14,047 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,051 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 10:20:14,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:14,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:20:14,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:20:14,057 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,065 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 10:20:14,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:14,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:20:14,074 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:20:14,085 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,090 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 10:20:14,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:14,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:20:14,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:20:14,096 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,101 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 10:20:14,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:14,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:20:14,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:20:14,109 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,113 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 10:20:14,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:20:14,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:14,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:20:14,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:20:14,116 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,121 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 10:20:14,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:20:14,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:20:14,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:20:14,128 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,132 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 10:20:14,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:20:14,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:20:14,134 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 10:20:14,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:20:14,154 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-12-07 10:20:14,154 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 10:20:14,219 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:20:14,289 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-12-07 10:20:14,289 INFO L444 ModelExtractionUtils]: 54 out of 91 variables were initially zero. Simplification set additionally 34 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dfb5f51-2ca4-47da-96a2-c1ca19dfb58e/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 10:20:14,292 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:20:14,295 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2019-12-07 10:20:14,295 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:20:14,295 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~us~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc213.base)_2) = -1*ULTIMATE.start_cstrncpy_~us~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc213.base)_2 Supporting invariants [] [2019-12-07 10:20:14,338 INFO L297 tatePredicateManager]: 16 out of 17 supporting invariants were superfluous and have been removed [2019-12-07 10:20:14,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 10:20:14,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:20:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:20:14,372 INFO L264 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 16 conjunts are in the unsatisfiable core [2019-12-07 10:20:14,373 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:20:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:20:14,385 INFO L264 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 10:20:14,385 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:20:14,385 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 10:20:14,386 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2019-12-07 10:20:14,386 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-12-07 10:20:14,410 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 12 states and 16 transitions. Complement of second has 5 states. [2019-12-07 10:20:14,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:20:14,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 10:20:14,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-12-07 10:20:14,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 10:20:14,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:20:14,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 10:20:14,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:20:14,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2019-12-07 10:20:14,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:20:14,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2019-12-07 10:20:14,412 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:20:14,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2019-12-07 10:20:14,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 10:20:14,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 10:20:14,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 10:20:14,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:20:14,412 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:20:14,412 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:20:14,412 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:20:14,412 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 10:20:14,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:20:14,413 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:20:14,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 10:20:14,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 10:20:14 BoogieIcfgContainer [2019-12-07 10:20:14,416 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 10:20:14,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:20:14,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:20:14,417 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:20:14,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:20:11" (3/4) ... [2019-12-07 10:20:14,419 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 10:20:14,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:20:14,420 INFO L168 Benchmark]: Toolchain (without parser) took 3991.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:20:14,421 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:20:14,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -127.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:20:14,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.03 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:20:14,422 INFO L168 Benchmark]: Boogie Preprocessor took 20.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:20:14,422 INFO L168 Benchmark]: RCFGBuilder took 184.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:20:14,422 INFO L168 Benchmark]: BuchiAutomizer took 3413.31 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -65.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:20:14,422 INFO L168 Benchmark]: Witness Printer took 2.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:20:14,424 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 334.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -127.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.03 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 184.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3413.31 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -65.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 2.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n and consists of 4 locations. One deterministic module has affine ranking function -1 * us + unknown-#length-unknown[__builtin_alloca(n * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 26 SDslu, 14 SDs, 0 SdLazy, 9 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital231 mio100 ax100 hnf99 lsp96 ukn86 mio100 lsp42 div100 bol100 ite100 ukn100 eq196 hnf89 smp96 dnf118 smp100 tf100 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 165ms VariablesStem: 17 VariablesLoop: 12 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...