./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_36e7cea0-2350-4487-bc86-a59edb810828/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:03,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:13:03,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:13:03,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:13:03,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:13:03,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:13:03,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:13:03,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:13:03,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:13:03,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:13:03,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:13:03,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:13:03,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:13:03,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:13:03,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:13:03,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:13:03,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:13:03,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:13:03,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:13:03,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:13:03,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:13:03,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:13:03,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:13:03,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:13:03,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:13:03,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:13:03,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:13:03,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:13:03,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:13:03,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:13:03,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:13:03,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:13:03,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:13:03,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:13:03,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:13:03,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:13:03,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:13:03,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:13:03,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:13:03,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:13:03,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:13:03,922 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:13:03,975 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:13:03,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:13:03,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:13:03,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:13:03,982 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:13:03,983 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:13:03,983 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:13:03,983 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:13:03,984 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:13:03,984 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:13:03,984 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:13:03,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:13:03,989 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:13:03,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:13:03,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:13:03,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:13:03,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:13:03,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:13:03,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:13:03,991 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:13:03,991 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:13:03,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:13:03,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:13:03,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:13:03,993 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:13:03,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:13:03,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:13:03,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:13:03,995 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:13:03,996 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:13:03,997 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_36e7cea0-2350-4487-bc86-a59edb810828/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03de162ccadd41d16dfce723d629801bfe048af4 [2020-11-28 03:13:04,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:13:04,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:13:04,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:13:04,422 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:13:04,423 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:13:04,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/bin/uautomizer/../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i [2020-11-28 03:13:04,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/bin/uautomizer/data/b631d2ea9/6164f386d441476f90fb84bab2656aaf/FLAGdae134e8e [2020-11-28 03:13:05,060 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:13:05,061 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i [2020-11-28 03:13:05,069 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/bin/uautomizer/data/b631d2ea9/6164f386d441476f90fb84bab2656aaf/FLAGdae134e8e [2020-11-28 03:13:05,448 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/bin/uautomizer/data/b631d2ea9/6164f386d441476f90fb84bab2656aaf [2020-11-28 03:13:05,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:13:05,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:13:05,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:13:05,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:13:05,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:13:05,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:05" (1/1) ... [2020-11-28 03:13:05,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ba686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05, skipping insertion in model container [2020-11-28 03:13:05,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:05" (1/1) ... [2020-11-28 03:13:05,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:13:05,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:13:05,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:13:05,716 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:13:05,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:13:05,762 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:13:05,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05 WrapperNode [2020-11-28 03:13:05,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:13:05,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:13:05,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:13:05,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:13:05,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05" (1/1) ... [2020-11-28 03:13:05,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05" (1/1) ... [2020-11-28 03:13:05,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:13:05,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:13:05,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:13:05,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:13:05,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05" (1/1) ... [2020-11-28 03:13:05,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05" (1/1) ... [2020-11-28 03:13:05,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05" (1/1) ... [2020-11-28 03:13:05,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05" (1/1) ... [2020-11-28 03:13:05,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05" (1/1) ... [2020-11-28 03:13:05,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05" (1/1) ... [2020-11-28 03:13:05,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05" (1/1) ... [2020-11-28 03:13:05,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:13:05,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:13:05,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:13:05,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:13:05,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:13:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:13:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:13:05,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:13:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:13:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure rec_cstrlen [2020-11-28 03:13:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure rec_cstrlen [2020-11-28 03:13:06,141 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:13:06,141 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:13:06,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:06 BoogieIcfgContainer [2020-11-28 03:13:06,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:13:06,145 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:13:06,145 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:13:06,149 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:13:06,150 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:13:06,150 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:13:05" (1/3) ... [2020-11-28 03:13:06,152 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@609d2ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:13:06, skipping insertion in model container [2020-11-28 03:13:06,152 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:13:06,152 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:05" (2/3) ... [2020-11-28 03:13:06,165 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@609d2ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:13:06, skipping insertion in model container [2020-11-28 03:13:06,165 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:13:06,166 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:06" (3/3) ... [2020-11-28 03:13:06,168 INFO L373 chiAutomizerObserver]: Analyzing ICFG rec_strlen_malloc.i [2020-11-28 03:13:06,248 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:13:06,248 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:13:06,248 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:13:06,248 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:13:06,248 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:13:06,249 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:13:06,249 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:13:06,249 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:13:06,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-28 03:13:06,318 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:13:06,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:13:06,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:13:06,332 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:13:06,332 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:13:06,332 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:13:06,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-28 03:13:06,335 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:13:06,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:13:06,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:13:06,337 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:13:06,337 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:13:06,347 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 [2020-11-28 03:13:06,347 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 [2020-11-28 03:13:06,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:06,356 INFO L82 PathProgramCache]: Analyzing trace with hash 889568275, now seen corresponding path program 1 times [2020-11-28 03:13:06,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:06,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132061490] [2020-11-28 03:13:06,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:06,497 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:06,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:06,569 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:06,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:06,571 INFO L82 PathProgramCache]: Analyzing trace with hash 46806, now seen corresponding path program 1 times [2020-11-28 03:13:06,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:06,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589074131] [2020-11-28 03:13:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:06,586 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:06,598 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:06,601 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:06,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:06,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1180281220, now seen corresponding path program 1 times [2020-11-28 03:13:06,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:06,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864548468] [2020-11-28 03:13:06,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:06,664 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:06,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:06,731 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:07,296 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-11-28 03:13:07,596 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:13:07,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:13:07,598 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:13:07,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:13:07,599 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:13:07,599 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:07,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:13:07,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:13:07,600 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen_malloc.i_Iteration1_Lasso [2020-11-28 03:13:07,600 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:13:07,600 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:13:07,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:07,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:13:08,226 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:13:08,235 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:08,253 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 [2020-11-28 03:13:08,256 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,256 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:08,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:08,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:08,272 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:08,328 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 [2020-11-28 03:13:08,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:08,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:08,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:08,334 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:08,377 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 [2020-11-28 03:13:08,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:08,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:08,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:08,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:08,417 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 [2020-11-28 03:13:08,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:08,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,421 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:08,421 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:08,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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) [2020-11-28 03:13:08,490 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 [2020-11-28 03:13:08,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:08,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:08,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:08,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:08,556 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 [2020-11-28 03:13:08,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,564 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:13:08,564 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:13:08,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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) [2020-11-28 03:13:08,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:13:08,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:08,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:08,645 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 [2020-11-28 03:13:08,650 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:08,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:13:08,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:08,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:08,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:08,716 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:08,756 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 [2020-11-28 03:13:08,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:08,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:08,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:08,777 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:08,815 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 [2020-11-28 03:13:08,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:08,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:08,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:08,827 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:08,866 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 [2020-11-28 03:13:08,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:08,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:08,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:08,873 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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) [2020-11-28 03:13:08,931 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 [2020-11-28 03:13:08,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:08,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:08,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:08,945 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:08,993 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 [2020-11-28 03:13:08,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:08,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:08,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:08,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:08,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:08,997 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:08,997 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:09,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:09,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:13:09,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:09,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:09,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:09,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:09,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:09,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:09,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:09,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:09,081 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 [2020-11-28 03:13:09,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:09,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:09,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:09,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:09,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:13:09,088 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:13:09,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:09,141 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 [2020-11-28 03:13:09,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:09,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:09,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:09,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:09,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:09,144 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:09,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:09,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:09,175 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 [2020-11-28 03:13:09,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:09,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:09,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:09,177 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 03:13:09,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:09,179 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 03:13:09,179 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:09,192 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:09,223 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 [2020-11-28 03:13:09,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:09,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:09,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:09,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:09,231 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:13:09,231 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:13:09,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:09,276 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 [2020-11-28 03:13:09,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:09,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:09,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:09,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:09,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:13:09,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:13:09,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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 [2020-11-28 03:13:09,329 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 [2020-11-28 03:13:09,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:09,330 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-28 03:13:09,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:09,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:09,337 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-28 03:13:09,338 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:13:09,369 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36e7cea0-2350-4487-bc86-a59edb810828/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) [2020-11-28 03:13:09,421 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 [2020-11-28 03:13:09,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:09,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:09,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:09,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:09,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:13:09,432 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 [2020-11-28 03:13:09,444 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:13:09,688 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-28 03:13:09,689 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_36e7cea0-2350-4487-bc86-a59edb810828/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) [2020-11-28 03:13:09,701 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 [2020-11-28 03:13:09,710 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:13:09,711 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:13:09,712 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 [] [2020-11-28 03:13:09,756 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2020-11-28 03:13:09,767 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 03:13:09,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:09,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:13:09,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:09,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 03:13:09,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:09,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:13:09,970 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 [2020-11-28 03:13:09,971 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2020-11-28 03:13:10,085 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. [2020-11-28 03:13:10,087 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 [2020-11-28 03:13:10,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:13:10,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-11-28 03:13:10,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2020-11-28 03:13:10,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:10,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2020-11-28 03:13:10,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:10,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2020-11-28 03:13:10,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:10,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2020-11-28 03:13:10,099 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:13:10,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2020-11-28 03:13:10,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:13:10,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:13:10,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:13:10,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:13:10,105 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:13:10,105 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:13:10,105 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:13:10,105 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:13:10,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:13:10,105 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:13:10,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:13:10,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:13:10 BoogieIcfgContainer [2020-11-28 03:13:10,111 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:13:10,112 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:13:10,112 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:13:10,112 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:13:10,113 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:06" (3/4) ... [2020-11-28 03:13:10,117 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:13:10,117 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:13:10,119 INFO L168 Benchmark]: Toolchain (without parser) took 4658.86 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 93.9 MB in the beginning and 73.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 46.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:10,120 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 81.8 MB. Free memory was 43.6 MB in the beginning and 43.5 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:10,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.45 ms. Allocated memory is still 123.7 MB. Free memory was 93.9 MB in the beginning and 100.0 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:10,121 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.38 ms. Allocated memory is still 123.7 MB. Free memory was 100.0 MB in the beginning and 98.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:10,122 INFO L168 Benchmark]: Boogie Preprocessor took 26.16 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 97.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:10,122 INFO L168 Benchmark]: RCFGBuilder took 304.57 ms. Allocated memory is still 123.7 MB. Free memory was 97.4 MB in the beginning and 87.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:10,123 INFO L168 Benchmark]: BuchiAutomizer took 3966.78 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 86.6 MB in the beginning and 73.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:10,124 INFO L168 Benchmark]: Witness Printer took 5.25 ms. Allocated memory is still 148.9 MB. Free memory is still 73.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:10,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 81.8 MB. Free memory was 43.6 MB in the beginning and 43.5 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 305.45 ms. Allocated memory is still 123.7 MB. Free memory was 93.9 MB in the beginning and 100.0 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.38 ms. Allocated memory is still 123.7 MB. Free memory was 100.0 MB in the beginning and 98.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.16 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 97.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 304.57 ms. Allocated memory is still 123.7 MB. Free memory was 97.4 MB in the beginning and 87.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3966.78 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 86.6 MB in the beginning and 73.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.25 ms. Allocated memory is still 148.9 MB. Free memory is still 73.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. 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: 46ms 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...