./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.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_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/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 b9551eac17e9ca0a42612f73eb01545dde991582 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:48:31,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:48:31,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:48:31,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:48:31,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:48:31,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:48:31,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:48:31,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:48:31,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:48:31,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:48:31,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:48:31,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:48:31,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:48:31,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:48:31,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:48:31,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:48:31,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:48:31,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:48:31,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:48:31,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:48:31,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:48:31,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:48:31,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:48:31,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:48:31,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:48:31,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:48:31,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:48:31,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:48:31,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:48:31,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:48:31,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:48:31,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:48:31,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:48:31,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:48:31,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:48:31,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:48:31,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:48:31,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:48:31,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:48:31,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:48:31,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:48:31,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:48:31,622 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:48:31,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:48:31,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:48:31,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:48:31,624 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:48:31,624 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:48:31,625 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:48:31,625 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:48:31,625 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:48:31,625 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:48:31,625 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:48:31,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:48:31,626 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:48:31,626 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:48:31,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:48:31,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:48:31,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:48:31,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:48:31,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:48:31,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:48:31,628 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:48:31,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:48:31,628 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:48:31,628 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:48:31,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:48:31,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:48:31,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:48:31,629 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:48:31,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:48:31,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:48:31,630 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:48:31,631 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:48:31,632 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:48:31,633 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_fedebf3e-bf3c-4945-9fcb-5ab660588eea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9551eac17e9ca0a42612f73eb01545dde991582 [2020-11-29 19:48:31,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:48:32,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:48:32,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:48:32,018 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:48:32,020 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:48:32,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2020-11-29 19:48:32,119 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/data/be8f30680/8fc0cfa6b11846ecaccce5341b5d0218/FLAG879d4fabc [2020-11-29 19:48:32,877 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:48:32,882 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2020-11-29 19:48:32,906 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/data/be8f30680/8fc0cfa6b11846ecaccce5341b5d0218/FLAG879d4fabc [2020-11-29 19:48:33,136 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/data/be8f30680/8fc0cfa6b11846ecaccce5341b5d0218 [2020-11-29 19:48:33,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:48:33,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:48:33,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:48:33,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:48:33,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:48:33,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:48:33" (1/1) ... [2020-11-29 19:48:33,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7184c03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33, skipping insertion in model container [2020-11-29 19:48:33,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:48:33" (1/1) ... [2020-11-29 19:48:33,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:48:33,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:48:33,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:48:33,766 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:48:33,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:48:33,902 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:48:33,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33 WrapperNode [2020-11-29 19:48:33,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:48:33,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:48:33,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:48:33,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:48:33,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33" (1/1) ... [2020-11-29 19:48:33,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33" (1/1) ... [2020-11-29 19:48:33,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:48:33,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:48:33,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:48:33,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:48:33,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33" (1/1) ... [2020-11-29 19:48:33,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33" (1/1) ... [2020-11-29 19:48:33,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33" (1/1) ... [2020-11-29 19:48:33,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33" (1/1) ... [2020-11-29 19:48:33,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33" (1/1) ... [2020-11-29 19:48:33,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33" (1/1) ... [2020-11-29 19:48:33,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33" (1/1) ... [2020-11-29 19:48:33,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:48:33,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:48:34,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:48:34,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:48:34,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:48:34,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:48:34,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:48:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:48:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:48:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:48:34,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:48:34,449 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:48:34,450 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 19:48:34,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:48:34 BoogieIcfgContainer [2020-11-29 19:48:34,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:48:34,454 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:48:34,454 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:48:34,459 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:48:34,460 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:48:34,461 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:48:33" (1/3) ... [2020-11-29 19:48:34,463 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d5293da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:48:34, skipping insertion in model container [2020-11-29 19:48:34,463 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:48:34,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:33" (2/3) ... [2020-11-29 19:48:34,464 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d5293da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:48:34, skipping insertion in model container [2020-11-29 19:48:34,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:48:34,465 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:48:34" (3/3) ... [2020-11-29 19:48:34,467 INFO L373 chiAutomizerObserver]: Analyzing ICFG mult_array-alloca-1.i [2020-11-29 19:48:34,531 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:48:34,531 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:48:34,531 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:48:34,532 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:48:34,532 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:48:34,532 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:48:34,532 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:48:34,533 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:48:34,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-29 19:48:34,603 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 19:48:34,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:48:34,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:48:34,615 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:48:34,615 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:48:34,615 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:48:34,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-29 19:48:34,624 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 19:48:34,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:48:34,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:48:34,636 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:48:34,636 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:48:34,647 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 3#L515true assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 5#L515-2true main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 16#L517true assume !(main_~fac~0 < 1 || main_~fac~0 >= 2147483647 / (4 * main_~length~0)); 4#L517-2true call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 10#L520true assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 14#L521-3true [2020-11-29 19:48:34,647 INFO L796 eck$LassoCheckResult]: Loop: 14#L521-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet7, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet7; 12#L521-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 14#L521-3true [2020-11-29 19:48:34,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:48:34,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815374, now seen corresponding path program 1 times [2020-11-29 19:48:34,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:48:34,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652610649] [2020-11-29 19:48:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:48:34,848 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 19:48:34,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [153708886] [2020-11-29 19:48:34,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:48:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:48:35,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:48:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:48:35,146 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:48:35,176 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:48:35,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:48:35,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2020-11-29 19:48:35,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:48:35,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123058794] [2020-11-29 19:48:35,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:48:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:48:35,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:48:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:48:35,240 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:48:35,253 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:48:35,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:48:35,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787760, now seen corresponding path program 1 times [2020-11-29 19:48:35,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:48:35,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008661851] [2020-11-29 19:48:35,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:48:35,269 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 19:48:35,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248346705] [2020-11-29 19:48:35,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:48:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:48:35,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:48:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:48:35,747 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:48:35,766 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:48:46,224 WARN L193 SmtUtils]: Spent 10.35 s on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2020-11-29 19:48:49,252 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification that was a NOOP. DAG size: 56 [2020-11-29 19:48:49,268 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:48:49,269 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:48:49,269 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:48:49,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:48:49,270 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:48:49,270 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:48:49,270 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:48:49,271 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:48:49,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca-1.i_Iteration1_Lasso [2020-11-29 19:48:49,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:48:49,272 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:48:49,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:48:49,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:48:49,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:48:49,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:48:49,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:48:49,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:48:49,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:48:49,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:48:49,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:48:49,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:48:49,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:10,145 WARN L193 SmtUtils]: Spent 20.34 s on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-29 19:49:10,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:10,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:10,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:16,904 WARN L193 SmtUtils]: Spent 6.53 s on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-11-29 19:49:29,330 WARN L193 SmtUtils]: Spent 12.26 s on a formula simplification that was a NOOP. DAG size: 37 [2020-11-29 19:49:29,482 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:49:29,487 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:49:29,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:49:29,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:49:29,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:49:29,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:49:29,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:49:29,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:29,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:49:29,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:49:29,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:49:29,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:49:29,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:49:29,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:49:29,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:49:29,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:49:29,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:49:29,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:49:29,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:29,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:49:29,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:49:29,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:49:29,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:49:29,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:49:29,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:49:29,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:49:29,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:49:29,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:29,630 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/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) [2020-11-29 19:49:29,674 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:49:29,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:49:29,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:49:29,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:49:29,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:49:29,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:49:29,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:49:29,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:29,681 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/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) [2020-11-29 19:49:29,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:49:29,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:49:29,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:49:29,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:49:29,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:49:29,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:49:29,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:29,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:49:29,802 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:49:29,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:49:29,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:49:29,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:49:29,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:49:29,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:49:29,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:29,816 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/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) [2020-11-29 19:49:29,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:49:29,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:49:29,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:49:29,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:49:29,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:49:29,870 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:49:29,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:29,875 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:29,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:49:29,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:49:29,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:49:29,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:49:29,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:49:29,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:49:29,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:49:29,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:49:29,926 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:29,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:49:29,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:49:29,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:49:29,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:49:29,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:49:29,959 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:49:29,959 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:49:29,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:30,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:49:30,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:49:30,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:49:30,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:49:30,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:49:30,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:49:30,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:49:30,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:49:30,014 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:49:30,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:49:30,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:49:30,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:49:30,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:49:30,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:49:30,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:49:30,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:49:30,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:30,072 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:49:30,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:49:30,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:49:30,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:49:30,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:49:30,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:49:30,142 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:49:30,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:30,159 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:49:30,217 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-29 19:49:30,217 INFO L444 ModelExtractionUtils]: 17 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_fedebf3e-bf3c-4945-9fcb-5ab660588eea/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) [2020-11-29 19:49:30,226 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:30,229 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:49:30,230 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:49:30,230 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0.offset, v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1, ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~arr~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1 - 4*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-29 19:49:30,324 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-11-29 19:49:30,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:49:30,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:30,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:49:30,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:49:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:30,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:49:30,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:49:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:30,474 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:49:30,476 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2020-11-29 19:49:30,563 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 35 states and 46 transitions. Complement of second has 7 states. [2020-11-29 19:49:30,566 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 [2020-11-29 19:49:30,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:49:30,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-11-29 19:49:30,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-29 19:49:30,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:49:30,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 9 letters. Loop has 2 letters. [2020-11-29 19:49:30,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:49:30,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 4 letters. [2020-11-29 19:49:30,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:49:30,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2020-11-29 19:49:30,586 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:49:30,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 13 states and 17 transitions. [2020-11-29 19:49:30,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-29 19:49:30,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 19:49:30,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-11-29 19:49:30,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:49:30,595 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-29 19:49:30,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-11-29 19:49:30,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-29 19:49:30,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-29 19:49:30,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-11-29 19:49:30,630 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-29 19:49:30,631 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-29 19:49:30,631 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:49:30,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2020-11-29 19:49:30,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:49:30,641 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:49:30,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:49:30,642 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:49:30,642 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:49:30,643 INFO L794 eck$LassoCheckResult]: Stem: 133#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 129#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 130#L515 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 134#L515-2 main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 140#L517 assume !(main_~fac~0 < 1 || main_~fac~0 >= 2147483647 / (4 * main_~length~0)); 135#L517-2 call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 136#L520 assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 137#L521-3 assume !(main_~i~0 < main_~length~0); 141#L521-4 main_~j~0 := 0; 131#L524-3 [2020-11-29 19:49:30,644 INFO L796 eck$LassoCheckResult]: Loop: 131#L524-3 assume !!(main_~j~0 < main_~length~0 * main_~fac~0);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (if main_~i~0 < 0 && 0 != main_~i~0 % main_~length~0 then (if main_~length~0 < 0 then main_~i~0 % main_~length~0 + main_~length~0 else main_~i~0 % main_~length~0 - main_~length~0) else main_~i~0 % main_~length~0), 4);call write~int(main_#t~mem9, main_~arr2~0.base, main_~arr2~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem9; 132#L524-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 131#L524-3 [2020-11-29 19:49:30,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:30,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787702, now seen corresponding path program 1 times [2020-11-29 19:49:30,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:30,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957010820] [2020-11-29 19:49:30,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:30,660 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 19:49:30,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747751364] [2020-11-29 19:49:30,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:49:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:30,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 19:49:30,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:49:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:30,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957010820] [2020-11-29 19:49:30,751 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 19:49:30,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747751364] [2020-11-29 19:49:30,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:30,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:49:30,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202372639] [2020-11-29 19:49:30,755 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:49:30,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:30,757 INFO L82 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 1 times [2020-11-29 19:49:30,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:30,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259402079] [2020-11-29 19:49:30,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:30,771 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 19:49:30,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1172835971] [2020-11-29 19:49:30,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:49:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:49:30,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:49:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:49:30,826 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:49:30,832 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:49:31,052 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-11-29 19:49:34,012 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 127 DAG size of output: 90 [2020-11-29 19:49:34,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:49:34,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:49:34,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:49:34,025 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-11-29 19:49:35,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:35,502 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-11-29 19:49:35,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:49:35,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2020-11-29 19:49:35,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:49:35,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 17 transitions. [2020-11-29 19:49:35,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 19:49:35,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 19:49:35,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2020-11-29 19:49:35,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:49:35,506 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2020-11-29 19:49:35,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2020-11-29 19:49:35,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-11-29 19:49:35,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-29 19:49:35,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-11-29 19:49:35,508 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-11-29 19:49:35,508 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-11-29 19:49:35,508 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:49:35,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2020-11-29 19:49:35,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:49:35,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:49:35,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:49:35,514 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:49:35,514 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:49:35,515 INFO L794 eck$LassoCheckResult]: Stem: 191#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 187#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 188#L515 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 192#L515-2 main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 198#L517 assume !(main_~fac~0 < 1 || main_~fac~0 >= 2147483647 / (4 * main_~length~0)); 193#L517-2 call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 194#L520 assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 195#L521-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet7, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet7; 196#L521-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 197#L521-3 assume !(main_~i~0 < main_~length~0); 199#L521-4 main_~j~0 := 0; 189#L524-3 [2020-11-29 19:49:35,515 INFO L796 eck$LassoCheckResult]: Loop: 189#L524-3 assume !!(main_~j~0 < main_~length~0 * main_~fac~0);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (if main_~i~0 < 0 && 0 != main_~i~0 % main_~length~0 then (if main_~length~0 < 0 then main_~i~0 % main_~length~0 + main_~length~0 else main_~i~0 % main_~length~0 - main_~length~0) else main_~i~0 % main_~length~0), 4);call write~int(main_#t~mem9, main_~arr2~0.base, main_~arr2~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem9; 190#L524-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 189#L524-3 [2020-11-29 19:49:35,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:35,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1507295208, now seen corresponding path program 1 times [2020-11-29 19:49:35,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:35,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10494775] [2020-11-29 19:49:35,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:35,521 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 19:49:35,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139729260] [2020-11-29 19:49:35,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:49:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:49:35,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:49:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:49:35,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:49:35,612 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:49:35,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:35,614 INFO L82 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 2 times [2020-11-29 19:49:35,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:35,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61641045] [2020-11-29 19:49:35,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:35,619 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 19:49:35,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877356065] [2020-11-29 19:49:35,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:49:35,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-29 19:49:35,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-11-29 19:49:35,685 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:49:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:49:35,697 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:49:35,706 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:49:35,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:35,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1106714758, now seen corresponding path program 1 times [2020-11-29 19:49:35,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:49:35,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472932231] [2020-11-29 19:49:35,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:49:35,723 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 19:49:35,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2102932737] [2020-11-29 19:49:35,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:49:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:49:35,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:49:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:49:35,799 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:49:35,808 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:49:36,154 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-11-29 19:49:39,365 WARN L193 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-11-29 19:49:42,055 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 104 DAG size of output: 80 [2020-11-29 19:49:42,701 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-29 19:49:42,704 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:49:42,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:49:42,705 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:49:42,705 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:49:42,705 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:49:42,705 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:49:42,705 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:49:42,705 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:49:42,705 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca-1.i_Iteration3_Lasso [2020-11-29 19:49:42,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:49:42,705 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:49:42,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:42,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:42,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:42,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:42,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:42,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:42,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:42,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:42,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:42,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:44,915 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-11-29 19:49:45,571 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2020-11-29 19:49:45,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:45,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:49:45,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:50:01,430 WARN L193 SmtUtils]: Spent 15.79 s on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2020-11-29 19:50:01,598 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-29 19:50:02,600 WARN L193 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-11-29 19:50:02,978 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-11-29 19:50:03,170 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:50:03,170 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:50:03,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:50:03,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:50:03,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:50:03,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:50:03,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:50:03,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:50:03,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:50:03,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:50:03,188 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:50:03,219 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:50:03,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:50:03,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:50:03,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:50:03,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:50:03,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:50:03,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:50:03,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:50:03,224 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:50:03,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:50:03,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:50:03,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:50:03,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:50:03,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:50:03,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:50:03,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:50:03,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:50:03,270 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:50:03,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:50:03,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:50:03,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:50:03,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:50:03,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:50:03,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:50:03,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:50:03,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:50:03,304 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:50:03,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:50:03,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:50:03,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:50:03,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:50:03,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:50:03,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:50:03,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:50:03,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:50:03,340 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:50:03,370 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:50:03,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:50:03,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:50:03,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:50:03,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:50:03,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:50:03,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:50:03,378 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:50:03,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:50:03,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:50:03,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:50:03,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:50:03,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:50:03,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:50:03,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:50:03,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:50:03,418 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:50:03,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:50:03,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:50:03,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:50:03,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:50:03,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:50:03,464 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:50:03,464 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:50:03,489 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:50:03,537 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:50:03,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:50:03,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:50:03,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:50:03,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:50:03,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:50:03,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:50:03,548 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:50:03,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:50:03,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:50:03,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:50:03,584 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 19:50:03,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:50:03,634 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-11-29 19:50:03,634 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 19:50:03,713 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:50:03,917 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2020-11-29 19:50:03,917 INFO L444 ModelExtractionUtils]: 40 out of 61 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fedebf3e-bf3c-4945-9fcb-5ab660588eea/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:50:03,930 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 19:50:03,936 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2020-11-29 19:50:03,936 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:50:03,936 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~arr2~0.base)_1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~arr2~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~arr2~0.base)_1 - 4*ULTIMATE.start_main_~j~0 - 1*ULTIMATE.start_main_~arr2~0.offset Supporting invariants [] [2020-11-29 19:50:04,184 INFO L297 tatePredicateManager]: 16 out of 16 supporting invariants were superfluous and have been removed [2020-11-29 19:50:04,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:50:04,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:50:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:50:04,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:50:04,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:50:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:50:04,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:50:04,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:50:04,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:50:04,316 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:50:04,316 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-29 19:50:04,359 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 19 transitions. Complement of second has 4 states. [2020-11-29 19:50:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 19:50:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:50:04,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2020-11-29 19:50:04,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 2 letters. [2020-11-29 19:50:04,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:50:04,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 13 letters. Loop has 2 letters. [2020-11-29 19:50:04,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:50:04,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2020-11-29 19:50:04,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:50:04,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2020-11-29 19:50:04,366 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:50:04,366 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-11-29 19:50:04,366 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:50:04,366 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:50:04,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:50:04,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:50:04,367 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:50:04,367 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:50:04,367 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:50:04,367 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:50:04,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:50:04,367 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:50:04,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:50:04,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:50:04 BoogieIcfgContainer [2020-11-29 19:50:04,378 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:50:04,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:50:04,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:50:04,379 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:50:04,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:48:34" (3/4) ... [2020-11-29 19:50:04,384 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:50:04,384 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:50:04,390 INFO L168 Benchmark]: Toolchain (without parser) took 91239.20 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 72.6 MB in the beginning and 50.0 MB in the end (delta: 22.6 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:50:04,395 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 102.8 MB. Free memory was 61.1 MB in the beginning and 61.1 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:50:04,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.62 ms. Allocated memory is still 102.8 MB. Free memory was 72.6 MB in the beginning and 68.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:50:04,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.04 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 66.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:50:04,397 INFO L168 Benchmark]: Boogie Preprocessor took 36.25 ms. Allocated memory is still 102.8 MB. Free memory was 66.8 MB in the beginning and 65.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:50:04,399 INFO L168 Benchmark]: RCFGBuilder took 453.34 ms. Allocated memory is still 102.8 MB. Free memory was 65.5 MB in the beginning and 50.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:50:04,401 INFO L168 Benchmark]: BuchiAutomizer took 89923.68 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 50.5 MB in the beginning and 51.1 MB in the end (delta: -543.3 kB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:50:04,402 INFO L168 Benchmark]: Witness Printer took 6.01 ms. Allocated memory is still 123.7 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:50:04,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 102.8 MB. Free memory was 61.1 MB in the beginning and 61.1 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 751.62 ms. Allocated memory is still 102.8 MB. Free memory was 72.6 MB in the beginning and 68.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.04 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 66.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.25 ms. Allocated memory is still 102.8 MB. Free memory was 66.8 MB in the beginning and 65.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 453.34 ms. Allocated memory is still 102.8 MB. Free memory was 65.5 MB in the beginning and 50.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 89923.68 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 50.5 MB in the beginning and 51.1 MB in the end (delta: -543.3 kB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * Witness Printer took 6.01 ms. Allocated memory is still 123.7 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * arr + unknown-#length-unknown[arr] + -4 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[arr2] + -4 * j + -1 * arr2 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 89.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 87.7s. Construction of modules took 1.4s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 39 SDtfs, 41 SDslu, 17 SDs, 0 SdLazy, 30 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital301 mio100 ax108 hnf98 lsp151 ukn48 mio100 lsp64 div179 bol100 ite100 ukn100 eq141 hnf95 smp70 dnf113 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 358ms VariablesStem: 11 VariablesLoop: 10 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...