./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg --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 0e16460170daade69818450e1395d982497f59eca845b3ed1031565545c18793 ........................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:59:11,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:59:11,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:59:11,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:59:11,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:59:11,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:59:11,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:59:11,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:59:11,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:59:11,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:59:11,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:59:11,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:59:11,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:59:11,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:59:11,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:59:11,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:59:11,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:59:11,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:59:11,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:59:11,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:59:11,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:59:11,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:59:11,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:59:11,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:59:11,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:59:11,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:59:11,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:59:11,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:59:11,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:59:11,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:59:11,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:59:11,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:59:11,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:59:11,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:59:11,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:59:11,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:59:11,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:59:11,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:59:11,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:59:11,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:59:11,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:59:11,658 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:59:11,687 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:59:11,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:59:11,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:59:11,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:59:11,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:59:11,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:59:11,691 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:59:11,692 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:59:11,692 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:59:11,693 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:59:11,693 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:59:11,694 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:59:11,694 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:59:11,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:59:11,695 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:59:11,695 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:59:11,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:59:11,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:59:11,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:59:11,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:59:11,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:59:11,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:59:11,698 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:59:11,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:59:11,699 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:59:11,699 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:59:11,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:59:11,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:59:11,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:59:11,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:59:11,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:59:11,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:59:11,703 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:59:11,703 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_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e16460170daade69818450e1395d982497f59eca845b3ed1031565545c18793 [2021-10-28 08:59:11,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:59:12,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:59:12,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:59:12,013 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:59:12,014 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:59:12,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memset3.c [2021-10-28 08:59:12,094 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/data/8d2228a45/cee526956b83480d8845ede8d211c770/FLAGbd9688873 [2021-10-28 08:59:12,519 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:59:12,519 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/sv-benchmarks/c/ldv-memsafety/memset3.c [2021-10-28 08:59:12,525 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/data/8d2228a45/cee526956b83480d8845ede8d211c770/FLAGbd9688873 [2021-10-28 08:59:12,919 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/data/8d2228a45/cee526956b83480d8845ede8d211c770 [2021-10-28 08:59:12,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:59:12,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:59:12,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:59:12,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:59:12,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:59:12,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:59:12" (1/1) ... [2021-10-28 08:59:12,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f8d1ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:12, skipping insertion in model container [2021-10-28 08:59:12,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:59:12" (1/1) ... [2021-10-28 08:59:12,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:59:12,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:59:13,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:59:13,173 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:59:13,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:59:13,208 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:59:13,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:13 WrapperNode [2021-10-28 08:59:13,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:59:13,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:59:13,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:59:13,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:59:13,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:13" (1/1) ... [2021-10-28 08:59:13,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:13" (1/1) ... [2021-10-28 08:59:13,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:59:13,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:59:13,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:59:13,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:59:13,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:13" (1/1) ... [2021-10-28 08:59:13,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:13" (1/1) ... [2021-10-28 08:59:13,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:13" (1/1) ... [2021-10-28 08:59:13,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:13" (1/1) ... [2021-10-28 08:59:13,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:13" (1/1) ... [2021-10-28 08:59:13,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:13" (1/1) ... [2021-10-28 08:59:13,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:13" (1/1) ... [2021-10-28 08:59:13,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:59:13,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:59:13,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:59:13,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:59:13,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:13" (1/1) ... [2021-10-28 08:59:13,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:59:13,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:59:13,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:59:13,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:59:13,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 08:59:13,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 08:59:13,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:59:13,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:59:13,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:59:13,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:59:13,492 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:59:13,604 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:59:13,605 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 08:59:13,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:59:13 BoogieIcfgContainer [2021-10-28 08:59:13,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:59:13,608 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:59:13,609 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:59:13,614 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:59:13,615 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:59:13,620 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:59:12" (1/3) ... [2021-10-28 08:59:13,621 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56826636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:59:13, skipping insertion in model container [2021-10-28 08:59:13,621 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:59:13,621 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:59:13" (2/3) ... [2021-10-28 08:59:13,622 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56826636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:59:13, skipping insertion in model container [2021-10-28 08:59:13,622 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:59:13,622 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:59:13" (3/3) ... [2021-10-28 08:59:13,623 INFO L389 chiAutomizerObserver]: Analyzing ICFG memset3.c [2021-10-28 08:59:13,675 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:59:13,675 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:59:13,675 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:59:13,675 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:59:13,676 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:59:13,676 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:59:13,676 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:59:13,676 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:59:13,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:59:13,712 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 08:59:13,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:59:13,712 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:59:13,717 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 08:59:13,718 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 08:59:13,718 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:59:13,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:59:13,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 08:59:13,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:59:13,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:59:13,720 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 08:59:13,721 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 08:59:13,727 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~memset~res3.base, main_#t~memset~res3.offset, main_~#cstats~0.base, main_~#cstats~0.offset, main_~point~0.base, main_~point~0.offset;call main_~#cstats~0.base, main_~#cstats~0.offset := #Ultimate.allocOnStack(80);havoc main_~point~0.base, main_~point~0.offset;main_~point~0.base, main_~point~0.offset := main_~#cstats~0.base, main_~#cstats~0.offset; 9#L29true call main_#t~memset~res3.base, main_#t~memset~res3.offset := #Ultimate.C_memset(main_~point~0.base, main_~point~0.offset, 0, 80);< 8##Ultimate.C_memsetENTRYtrue assume 1 == #valid[#ptr.base];assume #amount + #ptr.offset <= #length[#ptr.base] && 0 <= #ptr.offset; 7#$Ultimate##0true #t~loopctr5 := 0; 4#L-1-1true [2021-10-28 08:59:13,728 INFO L793 eck$LassoCheckResult]: Loop: 4#L-1-1true assume #t~loopctr5 < #amount;#t~loopctr5 := 1 + #t~loopctr5; 4#L-1-1true [2021-10-28 08:59:13,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:13,734 INFO L85 PathProgramCache]: Analyzing trace with hash 37284879, now seen corresponding path program 1 times [2021-10-28 08:59:13,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:13,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461712518] [2021-10-28 08:59:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:13,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:59:13,857 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:59:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:59:13,896 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:59:13,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:13,901 INFO L85 PathProgramCache]: Analyzing trace with hash 36, now seen corresponding path program 1 times [2021-10-28 08:59:13,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:13,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276530188] [2021-10-28 08:59:13,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:13,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:59:13,913 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:59:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:59:13,919 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:59:13,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:13,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1155831254, now seen corresponding path program 1 times [2021-10-28 08:59:13,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:59:13,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706816102] [2021-10-28 08:59:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:59:13,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:59:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:59:13,941 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:59:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:59:13,964 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:59:14,034 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:59:14,035 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:59:14,035 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:59:14,035 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:59:14,036 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:59:14,036 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:59:14,036 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:59:14,036 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:59:14,036 INFO L133 ssoRankerPreferences]: Filename of dumped script: memset3.c_Iteration1_Loop [2021-10-28 08:59:14,037 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:59:14,037 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:59:14,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:59:14,136 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:59:14,137 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:59:14,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:59:14,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:59:14,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:59:14,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:59:14,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:59:14,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:59:14,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:59:14,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:59:14,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:59:14,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:59:14,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:59:14,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:59:14,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:59:14,488 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:59:14,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-28 08:59:14,495 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:59:14,495 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:59:14,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:59:14,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:59:14,496 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:59:14,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:59:14,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:59:14,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:59:14,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: memset3.c_Iteration1_Loop [2021-10-28 08:59:14,497 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:59:14,497 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:59:14,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:59:14,557 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:59:14,562 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:59:14,568 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:59:14,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:59:14,576 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:59:14,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:59:14,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:59:14,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:59:14,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:59:14,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:59:14,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:59:14,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:59:14,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:59:14,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:59:14,632 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:59:14,648 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 08:59:14,649 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:59:14,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:59:14,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:59:14,653 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:59:14,661 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:59:14,661 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:59:14,662 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:59:14,663 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(#Ultimate.C_memset_#t~loopctr5, #Ultimate.C_memset_#amount) = -1*#Ultimate.C_memset_#t~loopctr5 + 1*#Ultimate.C_memset_#amount Supporting invariants [] [2021-10-28 08:59:14,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:59:14,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:59:14,698 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:59:14,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:59:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:59:14,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:59:14,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:59:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:59:14,838 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:59:14,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:59:14,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:59:14,858 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 08:59:14,859 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:59:14,908 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1). Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 17 transitions. Complement of second has 6 states. [2021-10-28 08:59:14,908 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 [2021-10-28 08:59:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:59:14,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-28 08:59:14,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 1 letters. [2021-10-28 08:59:14,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:59:14,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-28 08:59:14,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:59:14,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 08:59:14,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:59:14,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2021-10-28 08:59:14,920 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:59:14,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-10-28 08:59:14,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:59:14,924 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:59:14,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:59:14,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:59:14,925 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:59:14,926 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:59:14,926 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:59:14,926 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:59:14,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:59:14,926 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:59:14,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:59:14,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:59:14 BoogieIcfgContainer [2021-10-28 08:59:14,934 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:59:14,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:59:14,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:59:14,935 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:59:14,936 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:59:13" (3/4) ... [2021-10-28 08:59:14,939 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:59:14,940 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:59:14,942 INFO L168 Benchmark]: Toolchain (without parser) took 2016.71 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 53.9 MB in the beginning and 70.1 MB in the end (delta: -16.2 MB). Peak memory consumption was 1.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:14,943 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 57.8 MB in the beginning and 57.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:59:14,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.74 ms. Allocated memory is still 88.1 MB. Free memory was 53.7 MB in the beginning and 65.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:14,945 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.31 ms. Allocated memory is still 88.1 MB. Free memory was 65.8 MB in the beginning and 64.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:59:14,946 INFO L168 Benchmark]: Boogie Preprocessor took 24.82 ms. Allocated memory is still 88.1 MB. Free memory was 64.6 MB in the beginning and 63.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:14,947 INFO L168 Benchmark]: RCFGBuilder took 328.03 ms. Allocated memory is still 88.1 MB. Free memory was 63.5 MB in the beginning and 55.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:14,948 INFO L168 Benchmark]: BuchiAutomizer took 1325.39 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 54.7 MB in the beginning and 70.7 MB in the end (delta: -15.9 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:14,949 INFO L168 Benchmark]: Witness Printer took 5.35 ms. Allocated memory is still 107.0 MB. Free memory was 70.7 MB in the beginning and 70.1 MB in the end (delta: 543.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:59:14,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 57.8 MB in the beginning and 57.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.74 ms. Allocated memory is still 88.1 MB. Free memory was 53.7 MB in the beginning and 65.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.31 ms. Allocated memory is still 88.1 MB. Free memory was 65.8 MB in the beginning and 64.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.82 ms. Allocated memory is still 88.1 MB. Free memory was 64.6 MB in the beginning and 63.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 328.03 ms. Allocated memory is still 88.1 MB. Free memory was 63.5 MB in the beginning and 55.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1325.39 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 54.7 MB in the beginning and 70.7 MB in the end (delta: -15.9 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.35 ms. Allocated memory is still 107.0 MB. Free memory was 70.7 MB in the beginning and 70.1 MB in the end (delta: 543.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * aux-#t~loopctr5-aux + unknown-#amount-unknown and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 6 SDslu, 1 SDs, 0 SdLazy, 6 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 95ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 08:59:15,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:59:15,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad70ca54-7c6a-4809-a965-d069bfa30123/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...