./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrchr-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrchr-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 32bit --witnessprinter.graph.data.programhash 276936ba1494f32a328b3de86f664a380d5263e9 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:28:43,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:28:43,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:28:43,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:28:43,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:28:43,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:28:43,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:28:43,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:28:43,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:28:43,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:28:43,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:28:43,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:28:43,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:28:43,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:28:43,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:28:43,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:28:43,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:28:43,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:28:43,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:28:43,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:28:43,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:28:43,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:28:43,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:28:43,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:28:43,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:28:43,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:28:43,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:28:43,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:28:43,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:28:43,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:28:43,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:28:43,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:28:43,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:28:43,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:28:43,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:28:43,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:28:43,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:28:43,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:28:43,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:28:43,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:28:43,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:28:43,505 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:28:43,529 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:28:43,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:28:43,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:28:43,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:28:43,531 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:28:43,531 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:28:43,532 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:28:43,532 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:28:43,532 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:28:43,532 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:28:43,533 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:28:43,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:28:43,533 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:28:43,534 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:28:43,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:28:43,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:28:43,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:28:43,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:28:43,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:28:43,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:28:43,535 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:28:43,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:28:43,536 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:28:43,536 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:28:43,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:28:43,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:28:43,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:28:43,537 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:28:43,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:28:43,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:28:43,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:28:43,539 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:28:43,540 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:28:43,540 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_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 276936ba1494f32a328b3de86f664a380d5263e9 [2020-11-30 01:28:43,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:28:43,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:28:43,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:28:43,860 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:28:43,862 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:28:43,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrchr-alloca-2.i [2020-11-30 01:28:43,955 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/data/8638f1510/4b5978854f8a4f3aae6691e9adf5151b/FLAG5f8919abe [2020-11-30 01:28:44,470 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:28:44,470 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/sv-benchmarks/c/array-memsafety/cstrchr-alloca-2.i [2020-11-30 01:28:44,484 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/data/8638f1510/4b5978854f8a4f3aae6691e9adf5151b/FLAG5f8919abe [2020-11-30 01:28:44,792 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/data/8638f1510/4b5978854f8a4f3aae6691e9adf5151b [2020-11-30 01:28:44,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:28:44,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:28:44,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:28:44,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:28:44,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:28:44,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:28:44" (1/1) ... [2020-11-30 01:28:44,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78fbc783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:44, skipping insertion in model container [2020-11-30 01:28:44,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:28:44" (1/1) ... [2020-11-30 01:28:44,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:28:44,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:28:45,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:28:45,143 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:28:45,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:28:45,240 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:28:45,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:45 WrapperNode [2020-11-30 01:28:45,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:28:45,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:28:45,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:28:45,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:28:45,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:45" (1/1) ... [2020-11-30 01:28:45,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:45" (1/1) ... [2020-11-30 01:28:45,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:28:45,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:28:45,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:28:45,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:28:45,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:45" (1/1) ... [2020-11-30 01:28:45,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:45" (1/1) ... [2020-11-30 01:28:45,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:45" (1/1) ... [2020-11-30 01:28:45,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:45" (1/1) ... [2020-11-30 01:28:45,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:45" (1/1) ... [2020-11-30 01:28:45,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:45" (1/1) ... [2020-11-30 01:28:45,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:45" (1/1) ... [2020-11-30 01:28:45,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:28:45,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:28:45,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:28:45,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:28:45,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 01:28:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:28:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:28:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:28:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:28:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:28:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:28:45,805 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:28:45,805 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 01:28:45,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:28:45 BoogieIcfgContainer [2020-11-30 01:28:45,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:28:45,807 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:28:45,807 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:28:45,813 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:28:45,814 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:28:45,814 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:28:44" (1/3) ... [2020-11-30 01:28:45,816 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@156131f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:28:45, skipping insertion in model container [2020-11-30 01:28:45,816 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:28:45,816 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:45" (2/3) ... [2020-11-30 01:28:45,817 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@156131f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:28:45, skipping insertion in model container [2020-11-30 01:28:45,817 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:28:45,817 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:28:45" (3/3) ... [2020-11-30 01:28:45,823 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrchr-alloca-2.i [2020-11-30 01:28:45,876 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:28:45,877 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:28:45,877 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:28:45,877 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:28:45,877 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:28:45,877 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:28:45,877 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:28:45,878 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:28:45,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-30 01:28:45,912 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-11-30 01:28:45,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:28:45,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:28:45,917 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-30 01:28:45,917 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 01:28:45,917 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:28:45,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-30 01:28:45,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-11-30 01:28:45,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:28:45,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:28:45,920 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-30 01:28:45,920 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 01:28:45,927 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 13#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet12, main_#t~ret13.base, main_#t~ret13.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8; 11#L522true assume !(main_~length~0 < 1); 16#L522-2true call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 7#L527-3true [2020-11-30 01:28:45,928 INFO L796 eck$LassoCheckResult]: Loop: 7#L527-3true assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet11, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 6#L527-2true main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 7#L527-3true [2020-11-30 01:28:45,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:45,934 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-11-30 01:28:45,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:45,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348296077] [2020-11-30 01:28:45,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:46,030 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:46,041 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:46,059 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:28:46,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:46,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2020-11-30 01:28:46,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:46,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973060204] [2020-11-30 01:28:46,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:46,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:46,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:46,084 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:28:46,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:46,086 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2020-11-30 01:28:46,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:46,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688274454] [2020-11-30 01:28:46,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:46,108 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:46,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:46,129 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:28:46,322 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-11-30 01:28:46,398 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:28:46,399 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:28:46,399 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:28:46,399 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:28:46,399 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:28:46,400 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:46,400 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:28:46,400 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:28:46,400 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrchr-alloca-2.i_Iteration1_Lasso [2020-11-30 01:28:46,400 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:28:46,400 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:28:46,427 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 01:28:46,433 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 01:28:46,437 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 01:28:46,579 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 01:28:46,582 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 01:28:46,586 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 01:28:46,590 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 01:28:46,594 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 01:28:46,597 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 01:28:46,603 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 01:28:46,608 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 01:28:46,614 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 01:28:46,922 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:28:46,928 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 [2020-11-30 01:28:46,935 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 01:28:46,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:46,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:46,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:46,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:46,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:46,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:46,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:46,947 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 [2020-11-30 01:28:46,990 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 01:28:46,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:46,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:46,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:46,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:46,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:46,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:46,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:46,997 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:28:47,043 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 01:28:47,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:47,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:47,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:47,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:47,058 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:28:47,058 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:47,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:28:47,108 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 01:28:47,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:47,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:47,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:47,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:47,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:47,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:47,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:47,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 01:28:47,160 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 01:28:47,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:47,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:47,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:47,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:47,175 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:28:47,175 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:28:47,190 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:28:47,246 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-30 01:28:47,246 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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) [2020-11-30 01:28:47,255 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:47,274 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 01:28:47,274 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:28:47,275 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2020-11-30 01:28:47,326 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-11-30 01:28:47,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:47,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:28:47,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:28:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:47,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:28:47,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:28:47,449 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 01:28:47,468 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 01:28:47,469 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 3 states. [2020-11-30 01:28:47,536 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 3 states. Result 41 states and 57 transitions. Complement of second has 7 states. [2020-11-30 01:28:47,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 01:28:47,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 01:28:47,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2020-11-30 01:28:47,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-30 01:28:47,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:28:47,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-30 01:28:47,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:28:47,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 4 letters. Loop has 4 letters. [2020-11-30 01:28:47,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:28:47,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 57 transitions. [2020-11-30 01:28:47,557 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 01:28:47,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 11 states and 15 transitions. [2020-11-30 01:28:47,563 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-30 01:28:47,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-30 01:28:47,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2020-11-30 01:28:47,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:28:47,565 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-11-30 01:28:47,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2020-11-30 01:28:47,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-30 01:28:47,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-30 01:28:47,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2020-11-30 01:28:47,593 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-11-30 01:28:47,593 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-11-30 01:28:47,593 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:28:47,593 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2020-11-30 01:28:47,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 01:28:47,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:28:47,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:28:47,595 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:28:47,596 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 01:28:47,596 INFO L794 eck$LassoCheckResult]: Stem: 119#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 115#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet12, main_#t~ret13.base, main_#t~ret13.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8; 116#L522 assume !(main_~length~0 < 1); 120#L522-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 121#L527-3 assume !(main_~i~0 < main_~length~0 - 1); 124#L527-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet12;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post5.base, cstrchr_#t~post5.offset, cstrchr_#t~mem2, cstrchr_#t~mem3, cstrchr_#t~short4, cstrchr_#t~mem6, cstrchr_#t~ite7.base, cstrchr_#t~ite7.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 125#L516-5 [2020-11-30 01:28:47,596 INFO L796 eck$LassoCheckResult]: Loop: 125#L516-5 call cstrchr_#t~mem2 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short4 := 0 != cstrchr_#t~mem2; 117#L516-1 assume !cstrchr_#t~short4; 118#L516-3 assume !!cstrchr_#t~short4;havoc cstrchr_#t~mem2;havoc cstrchr_#t~mem3;havoc cstrchr_#t~short4;cstrchr_#t~post5.base, cstrchr_#t~post5.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post5.base, 1 + cstrchr_#t~post5.offset;havoc cstrchr_#t~post5.base, cstrchr_#t~post5.offset; 125#L516-5 [2020-11-30 01:28:47,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:47,598 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2020-11-30 01:28:47,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:47,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265284692] [2020-11-30 01:28:47,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:47,628 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:47,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:47,660 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:28:47,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:47,660 INFO L82 PathProgramCache]: Analyzing trace with hash 57761, now seen corresponding path program 1 times [2020-11-30 01:28:47,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:47,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857512173] [2020-11-30 01:28:47,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:47,699 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 01:28:47,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857512173] [2020-11-30 01:28:47,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:28:47,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:28:47,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951111245] [2020-11-30 01:28:47,702 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:28:47,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:28:47,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:28:47,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:28:47,706 INFO L87 Difference]: Start difference. First operand 11 states and 15 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-11-30 01:28:47,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:28:47,724 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2020-11-30 01:28:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:28:47,725 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2020-11-30 01:28:47,726 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 01:28:47,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 14 transitions. [2020-11-30 01:28:47,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-30 01:28:47,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-30 01:28:47,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2020-11-30 01:28:47,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:28:47,727 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-30 01:28:47,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2020-11-30 01:28:47,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-30 01:28:47,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-30 01:28:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-11-30 01:28:47,729 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-30 01:28:47,729 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-30 01:28:47,729 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:28:47,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-11-30 01:28:47,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 01:28:47,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:28:47,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:28:47,731 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:28:47,731 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 01:28:47,731 INFO L794 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 144#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet12, main_#t~ret13.base, main_#t~ret13.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8; 145#L522 assume !(main_~length~0 < 1); 149#L522-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 150#L527-3 assume !(main_~i~0 < main_~length~0 - 1); 153#L527-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet12;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post5.base, cstrchr_#t~post5.offset, cstrchr_#t~mem2, cstrchr_#t~mem3, cstrchr_#t~short4, cstrchr_#t~mem6, cstrchr_#t~ite7.base, cstrchr_#t~ite7.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 154#L516-5 [2020-11-30 01:28:47,731 INFO L796 eck$LassoCheckResult]: Loop: 154#L516-5 call cstrchr_#t~mem2 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short4 := 0 != cstrchr_#t~mem2; 147#L516-1 assume cstrchr_#t~short4;call cstrchr_#t~mem3 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short4 := cstrchr_#t~mem3 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 148#L516-3 assume !!cstrchr_#t~short4;havoc cstrchr_#t~mem2;havoc cstrchr_#t~mem3;havoc cstrchr_#t~short4;cstrchr_#t~post5.base, cstrchr_#t~post5.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post5.base, 1 + cstrchr_#t~post5.offset;havoc cstrchr_#t~post5.base, cstrchr_#t~post5.offset; 154#L516-5 [2020-11-30 01:28:47,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:47,732 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 2 times [2020-11-30 01:28:47,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:47,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420129352] [2020-11-30 01:28:47,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:47,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:47,759 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:47,773 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:28:47,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:47,773 INFO L82 PathProgramCache]: Analyzing trace with hash 57699, now seen corresponding path program 1 times [2020-11-30 01:28:47,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:47,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774896751] [2020-11-30 01:28:47,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:47,795 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:47,804 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:47,806 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:28:47,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:47,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1183926615, now seen corresponding path program 1 times [2020-11-30 01:28:47,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:47,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604810190] [2020-11-30 01:28:47,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:48,001 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 01:28:48,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604810190] [2020-11-30 01:28:48,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:28:48,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 01:28:48,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739514744] [2020-11-30 01:28:48,120 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-11-30 01:28:48,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:28:48,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:28:48,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:28:48,160 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 7 states. [2020-11-30 01:28:48,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:28:48,280 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-11-30 01:28:48,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:28:48,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2020-11-30 01:28:48,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 01:28:48,282 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 12 states and 14 transitions. [2020-11-30 01:28:48,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-30 01:28:48,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-30 01:28:48,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2020-11-30 01:28:48,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:28:48,283 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-11-30 01:28:48,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2020-11-30 01:28:48,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-11-30 01:28:48,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-30 01:28:48,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-11-30 01:28:48,284 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-11-30 01:28:48,284 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-11-30 01:28:48,284 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 01:28:48,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2020-11-30 01:28:48,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 01:28:48,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:28:48,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:28:48,286 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:28:48,286 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 01:28:48,286 INFO L794 eck$LassoCheckResult]: Stem: 190#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 188#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet12, main_#t~ret13.base, main_#t~ret13.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8; 189#L522 assume !(main_~length~0 < 1); 193#L522-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 194#L527-3 assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet11, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 195#L527-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 196#L527-3 assume !(main_~i~0 < main_~length~0 - 1); 197#L527-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet12;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post5.base, cstrchr_#t~post5.offset, cstrchr_#t~mem2, cstrchr_#t~mem3, cstrchr_#t~short4, cstrchr_#t~mem6, cstrchr_#t~ite7.base, cstrchr_#t~ite7.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 198#L516-5 [2020-11-30 01:28:48,286 INFO L796 eck$LassoCheckResult]: Loop: 198#L516-5 call cstrchr_#t~mem2 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short4 := 0 != cstrchr_#t~mem2; 191#L516-1 assume cstrchr_#t~short4;call cstrchr_#t~mem3 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short4 := cstrchr_#t~mem3 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 192#L516-3 assume !!cstrchr_#t~short4;havoc cstrchr_#t~mem2;havoc cstrchr_#t~mem3;havoc cstrchr_#t~short4;cstrchr_#t~post5.base, cstrchr_#t~post5.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post5.base, 1 + cstrchr_#t~post5.offset;havoc cstrchr_#t~post5.base, cstrchr_#t~post5.offset; 198#L516-5 [2020-11-30 01:28:48,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:48,287 INFO L82 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2020-11-30 01:28:48,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:48,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865095073] [2020-11-30 01:28:48,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:48,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:48,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:48,328 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:28:48,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:48,331 INFO L82 PathProgramCache]: Analyzing trace with hash 57699, now seen corresponding path program 2 times [2020-11-30 01:28:48,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:48,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033428028] [2020-11-30 01:28:48,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:48,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:48,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:48,357 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:28:48,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:48,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1235380661, now seen corresponding path program 1 times [2020-11-30 01:28:48,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:48,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266213040] [2020-11-30 01:28:48,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:48,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:28:48,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:28:48,407 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:28:48,741 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-11-30 01:28:48,846 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:28:48,846 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:28:48,846 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:28:48,846 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:28:48,846 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:28:48,846 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:48,846 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:28:48,846 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:28:48,846 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrchr-alloca-2.i_Iteration4_Lasso [2020-11-30 01:28:48,846 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:28:48,846 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:28:48,851 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 01:28:48,854 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 01:28:48,856 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 01:28:48,859 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 01:28:48,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:28:48,864 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 01:28:48,867 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 01:28:48,869 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 01:28:48,872 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 01:28:48,877 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 01:28:48,880 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 01:28:48,882 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 01:28:48,885 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 01:28:48,904 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 01:28:48,907 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 01:28:48,910 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 01:28:48,913 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 01:28:48,916 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 01:28:48,920 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 01:28:48,923 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 01:28:48,926 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 01:28:48,930 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 01:28:48,933 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 01:28:49,078 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-11-30 01:28:49,205 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-11-30 01:28:49,826 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-11-30 01:28:49,885 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:28:49,886 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 01:28:49,899 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 01:28:49,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:49,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:49,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:49,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:49,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:49,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:49,902 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 01:28:49,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 01:28:49,937 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 01:28:49,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:49,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:49,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:49,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:49,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:49,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:49,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:49,940 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 01:28:49,965 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 01:28:49,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:49,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:49,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:49,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:49,968 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:28:49,968 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:28:49,983 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 01:28:50,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,010 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 [2020-11-30 01:28:50,036 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 01:28:50,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,039 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,073 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 01:28:50,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:28:50,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:28:50,098 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 [2020-11-30 01:28:50,143 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 01:28:50,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,147 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 [2020-11-30 01:28:50,171 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 01:28:50,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,175 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:28:50,175 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:28:50,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 01:28:50,203 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 01:28:50,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,207 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 01:28:50,229 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 01:28:50,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,232 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 01:28:50,255 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:28:50,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,258 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,259 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 [2020-11-30 01:28:50,282 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 01:28:50,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,286 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:28:50,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:28:50,294 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 [2020-11-30 01:28:50,322 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 01:28:50,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/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 [2020-11-30 01:28:50,352 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 01:28:50,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,356 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,379 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 01:28:50,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,382 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,404 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 01:28:50,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,432 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 01:28:50,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,435 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:28:50,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:28:50,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:28:50,467 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,489 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 01:28:50,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,515 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 01:28:50,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,543 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 01:28:50,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,552 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:28:50,552 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:28:50,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,612 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 01:28:50,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:28:50,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:28:50,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:28:50,615 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,638 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 01:28:50,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,643 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:28:50,643 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:28:50,649 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,672 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 01:28:50,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:28:50,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:28:50,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:28:50,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:28:50,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:28:50,682 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:28:50,709 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:28:50,741 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-30 01:28:50,742 INFO L444 ModelExtractionUtils]: 18 out of 28 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1c949ad-0b0e-4e33-b999-29a561f5e1f3/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:28:50,746 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:28:50,750 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 01:28:50,750 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:28:50,750 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrchr_~s.offset, v_rep(select #length ULTIMATE.start_main_~nondetString~0.base)_2) = -1*ULTIMATE.start_cstrchr_~s.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString~0.base)_2 Supporting invariants [] [2020-11-30 01:28:50,789 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2020-11-30 01:28:50,793 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:28:50,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:50,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:28:50,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:28:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:50,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 01:28:50,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:28:50,889 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 01:28:50,889 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 01:28:50,890 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-11-30 01:28:50,934 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 14 states and 17 transitions. Complement of second has 5 states. [2020-11-30 01:28:50,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:28:50,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:28:50,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-11-30 01:28:50,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2020-11-30 01:28:50,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:28:50,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 3 letters. [2020-11-30 01:28:50,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:28:50,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 6 letters. [2020-11-30 01:28:50,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:28:50,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2020-11-30 01:28:50,937 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:28:50,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-11-30 01:28:50,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 01:28:50,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 01:28:50,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 01:28:50,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:28:50,938 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:28:50,938 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:28:50,938 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:28:50,938 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-30 01:28:50,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:28:50,938 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:28:50,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 01:28:50,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:28:50 BoogieIcfgContainer [2020-11-30 01:28:50,943 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:28:50,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:28:50,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:28:50,944 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:28:50,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:28:45" (3/4) ... [2020-11-30 01:28:50,948 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:28:50,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:28:50,950 INFO L168 Benchmark]: Toolchain (without parser) took 6153.82 ms. Allocated memory was 119.5 MB in the beginning and 184.5 MB in the end (delta: 65.0 MB). Free memory was 85.1 MB in the beginning and 87.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 61.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:50,951 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 79.7 MB. Free memory was 37.7 MB in the beginning and 37.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:28:50,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.58 ms. Allocated memory is still 119.5 MB. Free memory was 84.9 MB in the beginning and 84.2 MB in the end (delta: 615.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:50,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.14 ms. Allocated memory is still 119.5 MB. Free memory was 84.2 MB in the beginning and 82.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:50,960 INFO L168 Benchmark]: Boogie Preprocessor took 51.00 ms. Allocated memory is still 119.5 MB. Free memory was 82.8 MB in the beginning and 81.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:28:50,961 INFO L168 Benchmark]: RCFGBuilder took 446.94 ms. Allocated memory is still 119.5 MB. Free memory was 81.5 MB in the beginning and 66.0 MB in the end (delta: 15.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:50,963 INFO L168 Benchmark]: BuchiAutomizer took 5135.66 ms. Allocated memory was 119.5 MB in the beginning and 184.5 MB in the end (delta: 65.0 MB). Free memory was 66.0 MB in the beginning and 88.7 MB in the end (delta: -22.6 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:50,967 INFO L168 Benchmark]: Witness Printer took 4.89 ms. Allocated memory is still 184.5 MB. Free memory was 88.7 MB in the beginning and 87.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:50,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 79.7 MB. Free memory was 37.7 MB in the beginning and 37.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 446.58 ms. Allocated memory is still 119.5 MB. Free memory was 84.9 MB in the beginning and 84.2 MB in the end (delta: 615.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.14 ms. Allocated memory is still 119.5 MB. Free memory was 84.2 MB in the beginning and 82.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.00 ms. Allocated memory is still 119.5 MB. Free memory was 82.8 MB in the beginning and 81.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 446.94 ms. Allocated memory is still 119.5 MB. Free memory was 81.5 MB in the beginning and 66.0 MB in the end (delta: 15.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5135.66 ms. Allocated memory was 119.5 MB in the beginning and 184.5 MB in the end (delta: 65.0 MB). Free memory was 66.0 MB in the beginning and 88.7 MB in the end (delta: -22.6 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.89 ms. Allocated memory is still 184.5 MB. Free memory was 88.7 MB in the beginning and 87.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. 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 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + length and consists of 5 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[nondetString] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 4.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 43 SDtfs, 45 SDslu, 50 SDs, 0 SdLazy, 57 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital130 mio100 ax114 hnf99 lsp81 ukn84 mio100 lsp52 div109 bol100 ite100 ukn100 eq161 hnf87 smp96 dnf419 smp63 tf100 neg97 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 2 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...