./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrncpy_diffterm_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 0.2.0-a4ecdab [2020-11-29 19:40:53,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:40:53,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:40:53,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:40:53,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:40:53,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:40:53,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:40:53,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:40:53,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:40:53,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:40:53,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:40:53,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:40:53,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:40:53,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:40:53,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:40:53,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:40:53,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:40:53,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:40:53,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:40:53,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:40:54,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:40:54,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:40:54,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:40:54,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:40:54,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:40:54,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:40:54,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:40:54,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:40:54,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:40:54,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:40:54,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:40:54,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:40:54,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:40:54,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:40:54,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:40:54,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:40:54,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:40:54,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:40:54,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:40:54,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:40:54,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:40:54,053 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 19:40:54,086 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:40:54,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:40:54,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:40:54,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:40:54,089 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:40:54,089 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:40:54,090 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:40:54,090 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:40:54,090 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:40:54,091 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:40:54,091 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:40:54,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:40:54,092 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:40:54,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:40:54,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:40:54,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:40:54,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:40:54,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:40:54,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:40:54,094 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:40:54,094 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:40:54,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:40:54,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:40:54,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:40:54,095 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:40:54,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:40:54,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:40:54,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:40:54,096 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:40:54,098 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:40:54,099 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_0329adab-6c65-4e7d-a695-4030dd7c2faf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42c24f3b8e86bd7db4a5522885bfbc1daa3bcc95 [2020-11-29 19:40:54,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:40:54,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:40:54,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:40:54,494 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:40:54,497 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:40:54,499 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrncpy_diffterm_alloca.i [2020-11-29 19:40:54,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/data/b976f779d/3f7de3626ae140f0a43eb804fd1ff593/FLAG9a31bce41 [2020-11-29 19:40:55,310 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:40:55,311 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/sv-benchmarks/c/termination-15/cstrncpy_diffterm_alloca.i [2020-11-29 19:40:55,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/data/b976f779d/3f7de3626ae140f0a43eb804fd1ff593/FLAG9a31bce41 [2020-11-29 19:40:55,569 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/data/b976f779d/3f7de3626ae140f0a43eb804fd1ff593 [2020-11-29 19:40:55,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:40:55,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:40:55,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:40:55,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:40:55,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:40:55,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:40:55" (1/1) ... [2020-11-29 19:40:55,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d123a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:55, skipping insertion in model container [2020-11-29 19:40:55,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:40:55" (1/1) ... [2020-11-29 19:40:55,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:40:55,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:40:56,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:40:56,175 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:40:56,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:40:56,385 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:40:56,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:56 WrapperNode [2020-11-29 19:40:56,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:40:56,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:40:56,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:40:56,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:40:56,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:56" (1/1) ... [2020-11-29 19:40:56,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:56" (1/1) ... [2020-11-29 19:40:56,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:40:56,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:40:56,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:40:56,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:40:56,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:56" (1/1) ... [2020-11-29 19:40:56,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:56" (1/1) ... [2020-11-29 19:40:56,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:56" (1/1) ... [2020-11-29 19:40:56,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:56" (1/1) ... [2020-11-29 19:40:56,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:56" (1/1) ... [2020-11-29 19:40:56,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:56" (1/1) ... [2020-11-29 19:40:56,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:56" (1/1) ... [2020-11-29 19:40:56,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:40:56,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:40:56,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:40:56,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:40:56,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 19:40:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:40:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:40:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:40:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:40:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:40:56,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:40:57,253 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:40:57,253 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 19:40:57,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:40:57 BoogieIcfgContainer [2020-11-29 19:40:57,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:40:57,257 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:40:57,258 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:40:57,262 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:40:57,264 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:40:57,264 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:40:55" (1/3) ... [2020-11-29 19:40:57,266 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bd8487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:40:57, skipping insertion in model container [2020-11-29 19:40:57,266 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:40:57,266 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:56" (2/3) ... [2020-11-29 19:40:57,267 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bd8487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:40:57, skipping insertion in model container [2020-11-29 19:40:57,267 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:40:57,267 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:40:57" (3/3) ... [2020-11-29 19:40:57,269 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrncpy_diffterm_alloca.i [2020-11-29 19:40:57,332 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:40:57,332 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:40:57,332 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:40:57,333 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:40:57,333 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:40:57,333 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:40:57,333 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:40:57,333 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:40:57,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-29 19:40:57,371 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 19:40:57,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:40:57,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:40:57,380 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 19:40:57,380 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:40:57,380 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:40:57,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-29 19:40:57,388 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 19:40:57,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:40:57,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:40:57,390 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 19:40:57,390 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:40:57,399 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 [2020-11-29 19:40:57,400 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~mem208;havoc cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset; 14#L370-2true [2020-11-29 19:40:57,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:57,407 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-11-29 19:40:57,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:57,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629302920] [2020-11-29 19:40:57,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:57,593 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:57,650 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:57,695 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:40:57,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:57,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1747, now seen corresponding path program 1 times [2020-11-29 19:40:57,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:57,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838719885] [2020-11-29 19:40:57,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:57,734 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:57,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:57,751 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:40:57,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:57,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935768, now seen corresponding path program 1 times [2020-11-29 19:40:57,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:57,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167722194] [2020-11-29 19:40:57,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:57,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:57,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:57,891 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:40:58,076 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-11-29 19:40:58,669 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2020-11-29 19:40:58,874 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-11-29 19:40:58,902 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:40:58,903 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:40:58,908 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:40:58,908 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:40:58,909 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:40:58,909 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:40:58,909 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:40:58,909 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:40:58,910 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy_diffterm_alloca.i_Iteration1_Lasso [2020-11-29 19:40:58,910 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:40:58,911 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:40:58,959 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 19:40:58,970 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 19:40:58,975 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 19:40:58,983 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 19:40:58,991 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 19:40:58,998 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 19:40:59,003 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 19:40:59,009 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 19:40:59,015 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 19:40:59,021 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 19:40:59,026 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 19:40:59,033 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 19:40:59,039 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 19:40:59,046 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 19:40:59,054 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 19:40:59,060 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 19:40:59,065 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 19:40:59,071 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 19:40:59,088 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 19:40:59,681 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2020-11-29 19:40:59,972 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-11-29 19:40:59,973 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 19:40:59,981 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 19:40:59,985 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 19:41:00,895 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:41:00,902 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 19:41:00,917 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 19:41:00,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:00,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:00,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:00,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:00,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:00,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:00,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:00,931 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 [2020-11-29 19:41:00,978 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 19:41:00,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:00,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:00,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:00,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:00,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:00,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:00,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:00,986 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 [2020-11-29 19:41:01,021 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 [2020-11-29 19:41:01,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,032 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 [2020-11-29 19:41:01,065 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 [2020-11-29 19:41:01,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:41:01,073 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:41:01,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 19:41:01,133 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 19:41:01,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,141 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:41:01,142 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:41:01,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 19:41:01,195 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 19:41:01,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,206 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 19:41:01,240 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 19:41:01,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,251 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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) [2020-11-29 19:41:01,305 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 19:41:01,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,309 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:01,312 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 19:41:01,360 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 19:41:01,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,365 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 19:41:01,399 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 19:41:01,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,412 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 19:41:01,442 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 19:41:01,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 [2020-11-29 19:41:01,477 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 19:41:01,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 19:41:01,516 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 19:41:01,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,523 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 [2020-11-29 19:41:01,559 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 19:41:01,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 19:41:01,599 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 19:41:01,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 [2020-11-29 19:41:01,640 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 19:41:01,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,653 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,657 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 19:41:01,687 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 19:41:01,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,690 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,700 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 19:41:01,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:41:01,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:01,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,739 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 [2020-11-29 19:41:01,772 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 19:41:01,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:01,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,774 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 19:41:01,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,781 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 19:41:01,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:01,785 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 [2020-11-29 19:41:01,821 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 19:41:01,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,830 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:41:01,830 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:41:01,837 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 [2020-11-29 19:41:01,873 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 19:41:01,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:01,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:01,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:01,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:01,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:41:01,903 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:41:01,926 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:41:02,122 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-29 19:41:02,122 INFO L444 ModelExtractionUtils]: 22 out of 34 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/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 [2020-11-29 19:41:02,211 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 19:41:02,227 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:41:02,227 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:41:02,228 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~n) = 1*ULTIMATE.start_cstrncpy_~n Supporting invariants [] [2020-11-29 19:41:02,376 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2020-11-29 19:41:02,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:41:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:41:02,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:41:02,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:41:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:41:02,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:41:02,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:41:02,578 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 19:41:02,600 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 [2020-11-29 19:41:02,601 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2020-11-29 19:41:02,684 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 30 states and 40 transitions. Complement of second has 5 states. [2020-11-29 19:41:02,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 19:41:02,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:41:02,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-11-29 19:41:02,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-29 19:41:02,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:41:02,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-29 19:41:02,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:41:02,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2020-11-29 19:41:02,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:41:02,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2020-11-29 19:41:02,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:41:02,709 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 11 states and 14 transitions. [2020-11-29 19:41:02,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-29 19:41:02,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-29 19:41:02,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2020-11-29 19:41:02,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:41:02,712 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-29 19:41:02,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2020-11-29 19:41:02,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-11-29 19:41:02,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 19:41:02,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-11-29 19:41:02,743 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-29 19:41:02,743 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-29 19:41:02,743 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:41:02,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-11-29 19:41:02,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:41:02,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:41:02,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:41:02,745 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:41:02,745 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:41:02,745 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~mem208;havoc cstrncpy_#t~post206.base, cstrncpy_#t~post206.offset;cstrncpy_~us~0.base, cstrncpy_~us~0.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~n2~0 := cstrncpy_~n; 143#L375-3 [2020-11-29 19:41:02,746 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 [2020-11-29 19:41:02,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:41:02,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935753, now seen corresponding path program 1 times [2020-11-29 19:41:02,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:41:02,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242402818] [2020-11-29 19:41:02,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:41:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:41:02,788 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:41:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:41:02,846 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:41:02,887 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:41:02,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:41:02,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 1 times [2020-11-29 19:41:02,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:41:02,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974007686] [2020-11-29 19:41:02,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:41:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:41:02,929 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:41:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:41:02,934 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:41:02,937 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:41:02,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:41:02,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1298472078, now seen corresponding path program 1 times [2020-11-29 19:41:02,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:41:02,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726965753] [2020-11-29 19:41:02,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:41:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:41:02,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:41:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:41:03,021 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:41:03,031 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:41:04,054 WARN L193 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 128 [2020-11-29 19:41:04,371 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-11-29 19:41:04,376 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:41:04,377 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:41:04,377 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:41:04,377 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:41:04,377 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:41:04,377 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:04,377 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:41:04,377 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:41:04,378 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy_diffterm_alloca.i_Iteration2_Lasso [2020-11-29 19:41:04,378 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:41:04,378 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:41:04,384 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 19:41:04,397 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 19:41:04,401 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 19:41:04,406 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 19:41:04,410 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 19:41:04,416 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 19:41:04,990 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2020-11-29 19:41:05,139 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-11-29 19:41:05,140 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 19:41:05,143 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 19:41:05,145 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 19:41:05,148 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 19:41:05,153 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 19:41:05,157 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 19:41:05,160 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 19:41:05,163 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 19:41:05,166 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 19:41:05,180 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 19:41:05,186 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 19:41:05,189 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 19:41:05,196 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 19:41:05,728 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-11-29 19:41:06,167 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-11-29 19:41:06,302 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:41:06,302 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:06,319 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 19:41:06,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:06,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:06,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:06,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:06,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:06,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:06,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:06,349 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:06,386 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 19:41:06,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:06,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:06,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:06,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:06,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:06,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:06,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:06,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:06,422 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:41:06,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:06,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:06,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:06,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:06,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:06,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:06,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:06,426 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:06,457 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 [2020-11-29 19:41:06,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:06,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:06,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:06,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:06,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:06,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:06,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:41:06,461 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:06,492 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 19:41:06,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:06,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:06,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:06,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:06,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:41:06,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:41:06,504 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:06,535 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 19:41:06,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:06,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:06,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:06,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:06,579 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:41:06,579 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:41:06,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:41:06,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:41:06,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:06,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:41:06,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:06,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:06,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:06,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:41:06,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:06,658 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:06,691 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:41:06,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:06,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:06,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:06,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:06,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:41:06,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:41:06,701 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:06,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:41:06,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:06,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:06,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:06,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:06,738 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:41:06,739 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:41:06,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:06,780 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 19:41:06,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:06,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:06,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:06,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:06,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:41:06,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:41:06,789 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:06,821 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 19:41:06,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:06,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:06,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:41:06,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:41:06,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:41:06,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:41:06,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:41:06,901 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 19:41:06,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:41:06,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:41:06,906 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 19:41:06,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:06,978 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-11-29 19:41:06,979 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 19:41:07,108 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:41:07,359 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2020-11-29 19:41:07,359 INFO L444 ModelExtractionUtils]: 69 out of 106 variables were initially zero. Simplification set additionally 34 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0329adab-6c65-4e7d-a695-4030dd7c2faf/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:41:07,364 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:41:07,369 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2020-11-29 19:41:07,369 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:41:07,369 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 [] [2020-11-29 19:41:07,505 INFO L297 tatePredicateManager]: 14 out of 15 supporting invariants were superfluous and have been removed [2020-11-29 19:41:07,511 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:41:07,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:41:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:41:07,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 19:41:07,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:41:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:41:07,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 19:41:07,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:41:07,664 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 19:41:07,665 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 [2020-11-29 19:41:07,665 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-11-29 19:41:07,741 INFO L75 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. [2020-11-29 19:41:07,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 19:41:07,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 19:41:07,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-11-29 19:41:07,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-29 19:41:07,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:41:07,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 2 letters. [2020-11-29 19:41:07,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:41:07,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2020-11-29 19:41:07,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:41:07,744 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2020-11-29 19:41:07,745 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:41:07,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2020-11-29 19:41:07,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:41:07,745 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:41:07,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:41:07,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:41:07,746 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:41:07,746 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:41:07,746 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:41:07,746 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:41:07,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:41:07,746 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:41:07,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:41:07,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:41:07 BoogieIcfgContainer [2020-11-29 19:41:07,757 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:41:07,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:41:07,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:41:07,762 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:41:07,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:40:57" (3/4) ... [2020-11-29 19:41:07,766 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:41:07,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:41:07,768 INFO L168 Benchmark]: Toolchain (without parser) took 12192.21 ms. Allocated memory was 81.8 MB in the beginning and 174.1 MB in the end (delta: 92.3 MB). Free memory was 48.5 MB in the beginning and 125.3 MB in the end (delta: -76.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:07,769 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 81.8 MB. Free memory was 40.4 MB in the beginning and 40.3 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:41:07,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.64 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 48.2 MB in the beginning and 59.6 MB in the end (delta: -11.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:07,780 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.35 ms. Allocated memory is still 98.6 MB. Free memory was 59.6 MB in the beginning and 57.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:07,781 INFO L168 Benchmark]: Boogie Preprocessor took 34.64 ms. Allocated memory is still 98.6 MB. Free memory was 57.6 MB in the beginning and 56.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:07,783 INFO L168 Benchmark]: RCFGBuilder took 740.81 ms. Allocated memory is still 98.6 MB. Free memory was 56.2 MB in the beginning and 64.7 MB in the end (delta: -8.5 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:07,784 INFO L168 Benchmark]: BuchiAutomizer took 10499.66 ms. Allocated memory was 98.6 MB in the beginning and 174.1 MB in the end (delta: 75.5 MB). Free memory was 64.7 MB in the beginning and 125.3 MB in the end (delta: -60.6 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:41:07,785 INFO L168 Benchmark]: Witness Printer took 5.24 ms. Allocated memory is still 174.1 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:41:07,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 81.8 MB. Free memory was 40.4 MB in the beginning and 40.3 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 800.64 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 48.2 MB in the beginning and 59.6 MB in the end (delta: -11.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.35 ms. Allocated memory is still 98.6 MB. Free memory was 59.6 MB in the beginning and 57.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.64 ms. Allocated memory is still 98.6 MB. Free memory was 57.6 MB in the beginning and 56.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 740.81 ms. Allocated memory is still 98.6 MB. Free memory was 56.2 MB in the beginning and 64.7 MB in the end (delta: -8.5 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10499.66 ms. Allocated memory was 98.6 MB in the beginning and 174.1 MB in the end (delta: 75.5 MB). Free memory was 64.7 MB in the beginning and 125.3 MB in the end (delta: -60.6 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.24 ms. Allocated memory is still 174.1 MB. Free memory is still 125.3 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 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 10.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 9.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. 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, 24 SDslu, 14 SDs, 0 SdLazy, 9 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital237 mio100 ax100 hnf99 lsp97 ukn86 mio100 lsp42 div100 bol100 ite100 ukn100 eq198 hnf89 smp97 dnf114 smp100 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 475ms VariablesStem: 20 VariablesLoop: 11 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...