./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.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_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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 03de162ccadd41d16dfce723d629801bfe048af4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:22:28,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:22:28,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:22:28,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:22:28,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:22:28,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:22:28,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:22:28,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:22:28,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:22:28,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:22:28,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:22:28,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:22:28,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:22:28,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:22:28,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:22:28,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:22:28,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:22:28,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:22:28,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:22:28,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:22:28,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:22:28,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:22:28,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:22:28,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:22:28,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:22:28,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:22:28,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:22:28,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:22:28,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:22:28,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:22:28,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:22:28,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:22:28,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:22:28,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:22:28,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:22:28,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:22:28,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:22:28,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:22:28,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:22:28,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:22:28,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:22:28,592 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-30 00:22:28,621 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:22:28,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:22:28,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:22:28,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:22:28,623 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:22:28,624 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:22:28,624 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:22:28,624 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:22:28,624 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:22:28,625 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:22:28,625 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:22:28,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:22:28,625 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:22:28,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:22:28,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:22:28,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:22:28,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:22:28,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:22:28,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:22:28,627 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:22:28,628 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:22:28,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:22:28,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:22:28,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:22:28,629 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:22:28,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:22:28,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:22:28,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:22:28,630 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:22:28,631 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:22:28,631 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_2919a725-358f-4fe7-8044-ce17e3c8079a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03de162ccadd41d16dfce723d629801bfe048af4 [2020-11-30 00:22:28,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:22:28,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:22:28,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:22:28,920 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:22:28,921 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:22:28,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i [2020-11-30 00:22:29,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/data/6bc44c89c/e30e8923e3924b68a13f92447eb697b1/FLAG36892db43 [2020-11-30 00:22:29,481 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:22:29,482 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i [2020-11-30 00:22:29,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/data/6bc44c89c/e30e8923e3924b68a13f92447eb697b1/FLAG36892db43 [2020-11-30 00:22:29,865 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/data/6bc44c89c/e30e8923e3924b68a13f92447eb697b1 [2020-11-30 00:22:29,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:22:29,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:22:29,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:22:29,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:22:29,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:22:29,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:22:29" (1/1) ... [2020-11-30 00:22:29,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4370b6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:29, skipping insertion in model container [2020-11-30 00:22:29,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:22:29" (1/1) ... [2020-11-30 00:22:29,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:22:29,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:22:30,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:22:30,106 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:22:30,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:22:30,153 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:22:30,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:30 WrapperNode [2020-11-30 00:22:30,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:22:30,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:22:30,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:22:30,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:22:30,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:30" (1/1) ... [2020-11-30 00:22:30,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:30" (1/1) ... [2020-11-30 00:22:30,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:22:30,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:22:30,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:22:30,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:22:30,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:30" (1/1) ... [2020-11-30 00:22:30,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:30" (1/1) ... [2020-11-30 00:22:30,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:30" (1/1) ... [2020-11-30 00:22:30,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:30" (1/1) ... [2020-11-30 00:22:30,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:30" (1/1) ... [2020-11-30 00:22:30,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:30" (1/1) ... [2020-11-30 00:22:30,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:30" (1/1) ... [2020-11-30 00:22:30,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:22:30,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:22:30,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:22:30,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:22:30,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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 [2020-11-30 00:22:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:22:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:22:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:22:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:22:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:22:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure rec_cstrlen [2020-11-30 00:22:30,340 INFO L138 BoogieDeclarations]: Found implementation of procedure rec_cstrlen [2020-11-30 00:22:30,680 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:22:30,680 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 00:22:30,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:22:30 BoogieIcfgContainer [2020-11-30 00:22:30,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:22:30,683 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:22:30,683 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:22:30,691 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:22:30,692 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:22:30,693 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:22:29" (1/3) ... [2020-11-30 00:22:30,694 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68200299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:22:30, skipping insertion in model container [2020-11-30 00:22:30,694 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:22:30,695 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:22:30" (2/3) ... [2020-11-30 00:22:30,695 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68200299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:22:30, skipping insertion in model container [2020-11-30 00:22:30,695 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:22:30,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:22:30" (3/3) ... [2020-11-30 00:22:30,697 INFO L373 chiAutomizerObserver]: Analyzing ICFG rec_strlen_malloc.i [2020-11-30 00:22:30,747 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:22:30,747 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:22:30,748 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:22:30,748 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:22:30,748 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:22:30,748 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:22:30,748 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:22:30,748 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:22:30,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-30 00:22:30,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 00:22:30,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:22:30,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:22:30,797 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:22:30,797 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 00:22:30,797 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:22:30,797 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-30 00:22:30,800 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 00:22:30,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:22:30,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:22:30,801 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:22:30,801 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 00:22:30,809 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~ret5.base, main_#t~ret5.offset, main_#t~ret6;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet1, build_nondet_String_#t~malloc2.base, build_nondet_String_#t~malloc2.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet1;havoc build_nondet_String_#t~nondet1; 12#L11true assume !(build_nondet_String_~length~0 < 1); 9#L11-2true call build_nondet_String_#t~malloc2.base, build_nondet_String_#t~malloc2.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc2.base, build_nondet_String_#t~malloc2.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 3#L16true main_#t~ret5.base, main_#t~ret5.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset; 8#L30true call main_#t~ret6 := rec_cstrlen(main_#t~ret5.base, main_#t~ret5.offset);< 4#rec_cstrlenENTRYtrue [2020-11-30 00:22:30,809 INFO L796 eck$LassoCheckResult]: Loop: 4#rec_cstrlenENTRYtrue ~s.base, ~s.offset := #in~s.base, #in~s.offset;call #t~mem3 := read~int(~s.base, ~s.offset, 1); 14#L22true assume !(0 == #t~mem3);havoc #t~mem3; 18#L25true call #t~ret4 := rec_cstrlen(~s.base, 1 + ~s.offset);< 4#rec_cstrlenENTRYtrue [2020-11-30 00:22:30,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:30,817 INFO L82 PathProgramCache]: Analyzing trace with hash 889568275, now seen corresponding path program 1 times [2020-11-30 00:22:30,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:30,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000861446] [2020-11-30 00:22:30,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:30,931 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:30,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:30,971 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:22:30,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:30,973 INFO L82 PathProgramCache]: Analyzing trace with hash 46806, now seen corresponding path program 1 times [2020-11-30 00:22:30,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:30,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288112061] [2020-11-30 00:22:30,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:30,985 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:30,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:30,997 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:22:30,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:30,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1180281220, now seen corresponding path program 1 times [2020-11-30 00:22:31,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:22:31,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809431333] [2020-11-30 00:22:31,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:22:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:31,030 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:22:31,056 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:22:31,062 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:22:31,594 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-11-30 00:22:31,709 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-11-30 00:22:31,922 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:22:31,923 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:22:31,923 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:22:31,924 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:22:31,924 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:22:31,924 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:31,924 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:22:31,924 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:22:31,925 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen_malloc.i_Iteration1_Lasso [2020-11-30 00:22:31,925 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:22:31,926 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:22:31,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:31,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:31,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:31,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:31,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:31,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:31,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:31,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:22:32,483 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:22:32,491 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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) [2020-11-30 00:22:32,503 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 [2020-11-30 00:22:32,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:32,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:32,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:32,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:32,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:32,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:32,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:32,514 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:22:32,567 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 [2020-11-30 00:22:32,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:32,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:32,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:32,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:32,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:32,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:32,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:32,575 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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 [2020-11-30 00:22:32,603 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 [2020-11-30 00:22:32,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:32,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:32,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:32,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:32,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:32,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:32,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:22:32,609 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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 [2020-11-30 00:22:32,652 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 [2020-11-30 00:22:32,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:32,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:32,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:32,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:32,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:32,656 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:32,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:22:32,661 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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 [2020-11-30 00:22:32,696 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 [2020-11-30 00:22:32,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:32,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:32,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:32,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:32,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:32,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:32,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:22:32,704 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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 [2020-11-30 00:22:32,732 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 [2020-11-30 00:22:32,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:32,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:32,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:32,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:32,739 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:22:32,740 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:22:32,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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) [2020-11-30 00:22:32,789 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 [2020-11-30 00:22:32,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:32,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:32,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:32,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:32,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:32,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:32,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:32,796 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:32,842 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 [2020-11-30 00:22:32,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:32,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:32,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:32,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:32,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:32,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:32,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:22:32,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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 [2020-11-30 00:22:32,884 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 [2020-11-30 00:22:32,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:32,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:32,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:32,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:32,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:32,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:32,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:22:32,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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) [2020-11-30 00:22:32,923 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:32,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:32,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:32,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:32,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:32,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:32,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:32,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:22:32,945 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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) [2020-11-30 00:22:32,988 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 [2020-11-30 00:22:32,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:32,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:32,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:32,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:32,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:32,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:32,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:32,994 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:22:33,048 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 [2020-11-30 00:22:33,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:33,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:33,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:33,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:33,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:33,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:33,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:22:33,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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) [2020-11-30 00:22:33,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:22:33,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:33,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:33,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:33,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:33,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:33,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:33,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:33,123 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:22:33,164 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 [2020-11-30 00:22:33,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:33,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:33,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:33,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:33,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:33,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:33,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:33,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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 [2020-11-30 00:22:33,220 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 [2020-11-30 00:22:33,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:33,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:33,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:33,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:33,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:22:33,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:22:33,250 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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 [2020-11-30 00:22:33,277 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 [2020-11-30 00:22:33,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:33,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:33,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:33,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:33,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:33,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:22:33,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:22:33,281 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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 [2020-11-30 00:22:33,328 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 [2020-11-30 00:22:33,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:33,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:22:33,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:33,330 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:22:33,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:33,337 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:22:33,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:22:33,344 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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) [2020-11-30 00:22:33,388 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 [2020-11-30 00:22:33,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:33,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:33,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:33,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:33,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:22:33,410 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:33,419 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:22:33,468 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 [2020-11-30 00:22:33,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:33,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:33,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:33,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:33,475 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:22:33,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:33,481 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:22:33,529 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 [2020-11-30 00:22:33,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:33,531 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-30 00:22:33,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:33,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:33,541 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-30 00:22:33,541 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:33,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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) [2020-11-30 00:22:33,597 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 [2020-11-30 00:22:33,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:22:33,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:22:33,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:22:33,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:22:33,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:22:33,608 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:33,618 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:22:33,706 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-30 00:22:33,707 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2919a725-358f-4fe7-8044-ce17e3c8079a/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) [2020-11-30 00:22:33,717 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:22:33,724 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:22:33,725 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:22:33,726 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length rec_cstrlen_#in~s.base)_1, rec_cstrlen_#in~s.offset) = 1*v_rep(select #length rec_cstrlen_#in~s.base)_1 - 1*rec_cstrlen_#in~s.offset Supporting invariants [] [2020-11-30 00:22:33,770 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2020-11-30 00:22:33,779 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:22:33,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:22:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:33,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:22:33,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:22:33,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:22:33,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:22:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:22:33,911 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 [2020-11-30 00:22:33,912 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2020-11-30 00:22:34,017 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 31 states and 36 transitions. Complement of second has 8 states. [2020-11-30 00:22:34,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 00:22:34,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:22:34,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-11-30 00:22:34,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2020-11-30 00:22:34,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:22:34,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2020-11-30 00:22:34,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:22:34,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2020-11-30 00:22:34,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:22:34,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2020-11-30 00:22:34,036 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:22:34,038 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2020-11-30 00:22:34,040 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:22:34,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:22:34,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:22:34,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:22:34,041 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:22:34,041 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:22:34,041 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:22:34,041 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:22:34,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:22:34,042 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:22:34,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:22:34,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:22:34 BoogieIcfgContainer [2020-11-30 00:22:34,047 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:22:34,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:22:34,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:22:34,049 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:22:34,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:22:30" (3/4) ... [2020-11-30 00:22:34,054 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:22:34,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:22:34,057 INFO L168 Benchmark]: Toolchain (without parser) took 4186.18 ms. Allocated memory was 77.6 MB in the beginning and 117.4 MB in the end (delta: 39.8 MB). Free memory was 44.0 MB in the beginning and 59.6 MB in the end (delta: -15.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:34,059 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 50.3 MB in the beginning and 50.3 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:22:34,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.28 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 43.9 MB in the beginning and 74.8 MB in the end (delta: -30.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:34,066 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.39 ms. Allocated memory is still 96.5 MB. Free memory was 74.8 MB in the beginning and 73.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:22:34,067 INFO L168 Benchmark]: Boogie Preprocessor took 36.10 ms. Allocated memory is still 96.5 MB. Free memory was 73.5 MB in the beginning and 72.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:34,068 INFO L168 Benchmark]: RCFGBuilder took 441.92 ms. Allocated memory is still 96.5 MB. Free memory was 72.3 MB in the beginning and 61.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:34,068 INFO L168 Benchmark]: BuchiAutomizer took 3364.46 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.4 MB in the beginning and 60.4 MB in the end (delta: 964.9 kB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:22:34,070 INFO L168 Benchmark]: Witness Printer took 6.27 ms. Allocated memory is still 117.4 MB. Free memory was 60.4 MB in the beginning and 59.6 MB in the end (delta: 848.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:22:34,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 50.3 MB in the beginning and 50.3 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.28 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 43.9 MB in the beginning and 74.8 MB in the end (delta: -30.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.39 ms. Allocated memory is still 96.5 MB. Free memory was 74.8 MB in the beginning and 73.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.10 ms. Allocated memory is still 96.5 MB. Free memory was 73.5 MB in the beginning and 72.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 441.92 ms. Allocated memory is still 96.5 MB. Free memory was 72.3 MB in the beginning and 61.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3364.46 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.4 MB in the beginning and 60.4 MB in the end (delta: 964.9 kB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. * Witness Printer took 6.27 ms. Allocated memory is still 117.4 MB. Free memory was 60.4 MB in the beginning and 59.6 MB in the end (delta: 848.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 13 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital94 mio100 ax100 hnf100 lsp93 ukn63 mio100 lsp48 div100 bol100 ite100 ukn100 eq166 hnf91 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 2 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...