./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncpy-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncpy-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 51c86dc5019658537c4cb35ed62637baeb91c588 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:35:26,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:35:26,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:35:26,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:35:26,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:35:26,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:35:26,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:35:26,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:35:26,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:35:26,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:35:26,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:35:26,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:35:26,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:35:26,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:35:26,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:35:26,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:35:26,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:35:26,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:35:26,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:35:26,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:35:26,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:35:26,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:35:26,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:35:26,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:35:26,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:35:26,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:35:26,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:35:26,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:35:26,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:35:26,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:35:26,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:35:26,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:35:26,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:35:26,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:35:26,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:35:26,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:35:26,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:35:26,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:35:26,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:35:26,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:35:26,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:35:26,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 18:35:26,864 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:35:26,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:35:26,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:35:26,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:35:26,868 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:35:26,868 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:35:26,869 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:35:26,869 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:35:26,869 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:35:26,870 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:35:26,870 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:35:26,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:35:26,871 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:35:26,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:35:26,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:35:26,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:35:26,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:35:26,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:35:26,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:35:26,874 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:35:26,874 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:35:26,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:35:26,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:35:26,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:35:26,875 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:35:26,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:35:26,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:35:26,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:35:26,877 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:35:26,878 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:35:26,879 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51c86dc5019658537c4cb35ed62637baeb91c588 [2020-11-29 18:35:27,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:35:27,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:35:27,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:35:27,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:35:27,351 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:35:27,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncpy-alloca-1.i [2020-11-29 18:35:27,458 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/bin/uautomizer/data/a766d25e8/d8c1ef741539438f83867184c4f22f3e/FLAG3f94b46b2 [2020-11-29 18:35:28,248 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:35:28,249 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncpy-alloca-1.i [2020-11-29 18:35:28,264 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/bin/uautomizer/data/a766d25e8/d8c1ef741539438f83867184c4f22f3e/FLAG3f94b46b2 [2020-11-29 18:35:28,494 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/bin/uautomizer/data/a766d25e8/d8c1ef741539438f83867184c4f22f3e [2020-11-29 18:35:28,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:35:28,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:35:28,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:35:28,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:35:28,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:35:28,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:35:28" (1/1) ... [2020-11-29 18:35:28,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e3bf47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:28, skipping insertion in model container [2020-11-29 18:35:28,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:35:28" (1/1) ... [2020-11-29 18:35:28,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:35:28,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:35:28,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:35:28,974 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:35:29,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:35:29,089 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:35:29,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:29 WrapperNode [2020-11-29 18:35:29,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:35:29,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:35:29,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:35:29,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:35:29,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:29" (1/1) ... [2020-11-29 18:35:29,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:29" (1/1) ... [2020-11-29 18:35:29,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:35:29,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:35:29,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:35:29,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:35:29,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:29" (1/1) ... [2020-11-29 18:35:29,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:29" (1/1) ... [2020-11-29 18:35:29,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:29" (1/1) ... [2020-11-29 18:35:29,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:29" (1/1) ... [2020-11-29 18:35:29,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:29" (1/1) ... [2020-11-29 18:35:29,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:29" (1/1) ... [2020-11-29 18:35:29,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:29" (1/1) ... [2020-11-29 18:35:29,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:35:29,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:35:29,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:35:29,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:35:29,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 [2020-11-29 18:35:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 18:35:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 18:35:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:35:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:35:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:35:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:35:29,916 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:35:29,917 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 18:35:29,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:35:29 BoogieIcfgContainer [2020-11-29 18:35:29,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:35:29,923 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:35:29,924 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:35:29,928 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:35:29,929 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:35:29,930 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:35:28" (1/3) ... [2020-11-29 18:35:29,931 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dd45075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:35:29, skipping insertion in model container [2020-11-29 18:35:29,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:35:29,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:35:29" (2/3) ... [2020-11-29 18:35:29,933 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dd45075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:35:29, skipping insertion in model container [2020-11-29 18:35:29,933 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:35:29,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:35:29" (3/3) ... [2020-11-29 18:35:29,935 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrncpy-alloca-1.i [2020-11-29 18:35:30,017 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:35:30,018 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:35:30,019 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:35:30,020 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:35:30,020 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:35:30,020 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:35:30,021 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:35:30,021 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:35:30,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-29 18:35:30,068 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-29 18:35:30,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:35:30,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:35:30,076 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:35:30,077 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 18:35:30,077 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:35:30,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-29 18:35:30,082 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-29 18:35:30,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:35:30,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:35:30,083 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:35:30,083 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 18:35:30,093 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~ret12.base, main_#t~ret12.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~nondet8;havoc main_#t~nondet8;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 4#L566true assume !(main_~length~0 < 1); 9#L566-2true assume !(main_~n~0 < 1); 3#L569-1true call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset, cstrncpy_#in~src.base, cstrncpy_#in~src.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~post3.base, cstrncpy_#t~post3.offset, cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, cstrncpy_#t~mem5, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, cstrncpy_#t~pre6, cstrncpy_#t~pre2, cstrncpy_~d~0.base, cstrncpy_~d~0.offset, cstrncpy_~s~0.base, cstrncpy_~s~0.offset, cstrncpy_~dst.base, cstrncpy_~dst.offset, cstrncpy_~src.base, cstrncpy_~src.offset, cstrncpy_~n;cstrncpy_~dst.base, cstrncpy_~dst.offset := cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset;cstrncpy_~src.base, cstrncpy_~src.offset := cstrncpy_#in~src.base, cstrncpy_#in~src.offset;cstrncpy_~n := cstrncpy_#in~n; 16#L550true assume 0 != cstrncpy_~n % 4294967296;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_~dst.base, cstrncpy_~dst.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_~src.base, cstrncpy_~src.offset; 18#L553-4true [2020-11-29 18:35:30,094 INFO L796 eck$LassoCheckResult]: Loop: 18#L553-4true cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset := cstrncpy_~d~0.base, cstrncpy_~d~0.offset;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_#t~post3.base, 1 + cstrncpy_#t~post3.offset;cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset := cstrncpy_~s~0.base, cstrncpy_~s~0.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_#t~post4.base, 1 + cstrncpy_#t~post4.offset;call cstrncpy_#t~mem5 := read~int(cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, 1);call write~int(cstrncpy_#t~mem5, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, 1); 6#L554true assume !(0 == cstrncpy_#t~mem5);havoc cstrncpy_#t~mem5;havoc cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset;havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset; 12#L553-1true cstrncpy_#t~pre2 := cstrncpy_~n - 1;cstrncpy_~n := cstrncpy_~n - 1; 13#L553-2true assume !!(0 != cstrncpy_#t~pre2 % 4294967296);havoc cstrncpy_#t~pre2; 18#L553-4true [2020-11-29 18:35:30,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:35:30,100 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2020-11-29 18:35:30,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:35:30,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350722138] [2020-11-29 18:35:30,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:35:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:35:30,253 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:35:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:35:30,283 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:35:30,310 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:35:30,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:35:30,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1618712, now seen corresponding path program 1 times [2020-11-29 18:35:30,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:35:30,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253126790] [2020-11-29 18:35:30,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:35:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:35:30,348 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:35:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:35:30,373 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:35:30,389 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:35:30,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:35:30,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1592246563, now seen corresponding path program 1 times [2020-11-29 18:35:30,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:35:30,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521313873] [2020-11-29 18:35:30,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:35:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:35:30,487 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:35:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:35:30,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:35:30,587 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:35:30,856 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-11-29 18:35:31,223 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-11-29 18:35:31,751 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2020-11-29 18:35:31,965 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-29 18:35:31,992 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:35:31,993 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:35:31,993 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:35:31,994 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:35:31,994 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:35:31,994 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:35:31,994 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:35:31,994 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:35:31,994 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncpy-alloca-1.i_Iteration1_Lasso [2020-11-29 18:35:31,995 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:35:31,995 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:35:32,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:32,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:32,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:32,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:32,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:32,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:32,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:32,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:32,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:32,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:32,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:32,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:32,710 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-11-29 18:35:33,038 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-11-29 18:35:33,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:33,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:33,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:33,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:33,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:33,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:33,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:33,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:33,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:33,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:35:33,758 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-11-29 18:35:34,089 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-29 18:35:34,494 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-11-29 18:35:34,610 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-11-29 18:35:34,660 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:35:34,668 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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) [2020-11-29 18:35:34,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:35:34,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:34,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:35:34,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:34,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:34,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:34,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:35:34,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:35:34,707 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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) [2020-11-29 18:35:34,776 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 [2020-11-29 18:35:34,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:34,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:35:34,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:34,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:34,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:34,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:35:34,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:35:34,785 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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) [2020-11-29 18:35:34,839 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 [2020-11-29 18:35:34,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:34,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:35:34,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:34,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:34,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:34,843 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:35:34,843 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:35:34,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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) [2020-11-29 18:35:34,896 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 [2020-11-29 18:35:34,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:34,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:35:34,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:34,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:34,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:34,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:35:34,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:35:34,905 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 [2020-11-29 18:35:34,953 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 [2020-11-29 18:35:34,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:34,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:35:34,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:34,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:34,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:34,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:35:34,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:35:34,959 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 [2020-11-29 18:35:34,994 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 [2020-11-29 18:35:34,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:34,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:34,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:34,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:35,002 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:35:35,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:35:35,012 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 [2020-11-29 18:35:35,049 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 [2020-11-29 18:35:35,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:35:35,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:35,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:35,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:35:35,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:35:35,058 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 [2020-11-29 18:35:35,088 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 [2020-11-29 18:35:35,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:35:35,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:35,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:35,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:35:35,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:35:35,097 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 [2020-11-29 18:35:35,138 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 [2020-11-29 18:35:35,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:35,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:35,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:35:35,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:35:35,155 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 [2020-11-29 18:35:35,186 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 [2020-11-29 18:35:35,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:35,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:35,195 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:35:35,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:35:35,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 [2020-11-29 18:35:35,255 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 [2020-11-29 18:35:35,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:35:35,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:35,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:35,259 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:35:35,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:35:35,262 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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) [2020-11-29 18:35:35,321 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 [2020-11-29 18:35:35,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:35,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:35:35,335 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:35:35,335 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:35:35,342 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 [2020-11-29 18:35:35,370 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:35:35,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:35:35,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,372 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:35:35,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:35,374 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:35:35,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:35:35,382 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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) [2020-11-29 18:35:35,433 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 [2020-11-29 18:35:35,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:35,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:35:35,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:35:35,455 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:35:35,472 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 [2020-11-29 18:35:35,518 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 [2020-11-29 18:35:35,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:35,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:35,524 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:35:35,524 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:35:35,532 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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) [2020-11-29 18:35:35,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:35:35,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:35,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:35,602 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:35:35,602 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:35:35,609 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 [2020-11-29 18:35:35,661 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 [2020-11-29 18:35:35,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:35,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:35,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:35:35,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:35:35,694 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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 [2020-11-29 18:35:35,746 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 [2020-11-29 18:35:35,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:35,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:35:35,756 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:35:35,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:35:35,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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) [2020-11-29 18:35:35,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:35:35,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:35:35,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:35:35,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:35:35,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:35:35,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:35:35,856 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:35:35,901 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:35:36,082 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-29 18:35:36,082 INFO L444 ModelExtractionUtils]: 43 out of 49 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c39e462d-8979-4ee6-b156-1a942b064495/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) [2020-11-29 18:35:36,163 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:35:36,182 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:35:36,183 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:35:36,183 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~d~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_1) = -1*ULTIMATE.start_cstrncpy_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_1 Supporting invariants [] [2020-11-29 18:35:36,310 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2020-11-29 18:35:36,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:35:36,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:35:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:35:36,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 18:35:36,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:35:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:35:36,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 18:35:36,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:35:36,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:35:36,659 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-29 18:35:36,660 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 4 states. [2020-11-29 18:35:36,777 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 4 states. Result 37 states and 46 transitions. Complement of second has 7 states. [2020-11-29 18:35:36,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:35:36,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 18:35:36,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2020-11-29 18:35:36,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-29 18:35:36,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:35:36,786 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 10 letters. Loop has 4 letters. [2020-11-29 18:35:36,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:35:36,786 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 6 letters. Loop has 8 letters. [2020-11-29 18:35:36,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:35:36,788 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 46 transitions. [2020-11-29 18:35:36,799 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:35:36,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2020-11-29 18:35:36,804 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 18:35:36,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 18:35:36,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 18:35:36,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:35:36,805 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:35:36,805 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:35:36,805 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:35:36,805 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:35:36,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:35:36,808 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:35:36,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 18:35:36,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:35:36 BoogieIcfgContainer [2020-11-29 18:35:36,823 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:35:36,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:35:36,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:35:36,826 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:35:36,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:35:29" (3/4) ... [2020-11-29 18:35:36,831 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:35:36,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:35:36,833 INFO L168 Benchmark]: Toolchain (without parser) took 8331.94 ms. Allocated memory was 86.0 MB in the beginning and 159.4 MB in the end (delta: 73.4 MB). Free memory was 53.9 MB in the beginning and 114.3 MB in the end (delta: -60.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:35:36,833 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:35:36,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 588.91 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 53.7 MB in the beginning and 76.8 MB in the end (delta: -23.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:35:36,835 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.71 ms. Allocated memory is still 109.1 MB. Free memory was 76.2 MB in the beginning and 74.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:35:36,836 INFO L168 Benchmark]: Boogie Preprocessor took 34.49 ms. Allocated memory is still 109.1 MB. Free memory was 74.7 MB in the beginning and 73.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:35:36,837 INFO L168 Benchmark]: RCFGBuilder took 737.52 ms. Allocated memory is still 109.1 MB. Free memory was 73.4 MB in the beginning and 57.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:35:36,839 INFO L168 Benchmark]: BuchiAutomizer took 6899.23 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 57.3 MB in the beginning and 115.4 MB in the end (delta: -58.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:35:36,840 INFO L168 Benchmark]: Witness Printer took 5.21 ms. Allocated memory is still 159.4 MB. Free memory is still 114.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:35:36,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 588.91 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 53.7 MB in the beginning and 76.8 MB in the end (delta: -23.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.71 ms. Allocated memory is still 109.1 MB. Free memory was 76.2 MB in the beginning and 74.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.49 ms. Allocated memory is still 109.1 MB. Free memory was 74.7 MB in the beginning and 73.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 737.52 ms. Allocated memory is still 109.1 MB. Free memory was 73.4 MB in the beginning and 57.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6899.23 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 57.3 MB in the beginning and 115.4 MB in the end (delta: -58.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.21 ms. Allocated memory is still 159.4 MB. Free memory is still 114.3 MB. There was no memory consumed. Max. memory is 16.1 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * d + unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 6.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 21 SDslu, 15 SDs, 0 SdLazy, 10 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital229 mio100 ax107 hnf99 lsp90 ukn95 mio100 lsp52 div169 bol100 ite100 ukn100 eq177 hnf63 smp93 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...