./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/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_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/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 64bit --witnessprinter.graph.data.programhash 9e9fee7822ea181968af00cc75a840ddcb8cdf140cdf423bd35cdb5d3f0e2f5d ........................................................................................................................................................................................................................................................................................................................................................................... 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 09:00:18,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:00:18,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:00:18,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:00:18,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:00:18,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:00:18,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:00:18,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:00:18,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:00:18,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:00:18,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:00:18,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:00:18,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:00:18,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:00:18,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:00:18,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:00:18,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:00:18,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:00:18,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:00:18,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:00:18,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:00:18,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:00:18,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:00:18,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:00:18,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:00:18,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:00:18,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:00:18,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:00:18,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:00:18,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:00:18,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:00:18,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:00:18,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:00:18,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:00:18,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:00:18,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:00:18,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:00:18,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:00:18,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:00:18,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:00:18,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:00:18,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:00:18,318 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:00:18,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:00:18,319 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:00:18,319 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:00:18,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:00:18,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:00:18,321 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:00:18,321 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:00:18,322 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:00:18,322 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:00:18,323 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:00:18,323 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:00:18,323 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:00:18,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:00:18,324 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:00:18,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:00:18,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:00:18,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:00:18,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:00:18,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:00:18,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:00:18,325 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:00:18,326 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:00:18,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:00:18,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:00:18,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:00:18,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:00:18,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:00:18,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:00:18,330 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:00:18,330 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_5ed86dfc-7045-46f6-b59a-196a6a2689c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e9fee7822ea181968af00cc75a840ddcb8cdf140cdf423bd35cdb5d3f0e2f5d [2021-10-28 09:00:18,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:00:18,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:00:18,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:00:18,646 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:00:18,646 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:00:18,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i [2021-10-28 09:00:18,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/data/41ca830fe/bd5e026435194665a840a496214d7f83/FLAGf6819e3ed [2021-10-28 09:00:19,384 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:00:19,384 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i [2021-10-28 09:00:19,399 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/data/41ca830fe/bd5e026435194665a840a496214d7f83/FLAGf6819e3ed [2021-10-28 09:00:19,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/data/41ca830fe/bd5e026435194665a840a496214d7f83 [2021-10-28 09:00:19,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:00:19,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:00:19,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:00:19,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:00:19,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:00:19,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:00:19" (1/1) ... [2021-10-28 09:00:19,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678128e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:19, skipping insertion in model container [2021-10-28 09:00:19,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:00:19" (1/1) ... [2021-10-28 09:00:19,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:00:19,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:00:20,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:00:20,066 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:00:20,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:00:20,131 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:00:20,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:20 WrapperNode [2021-10-28 09:00:20,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:00:20,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:00:20,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:00:20,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:00:20,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:20" (1/1) ... [2021-10-28 09:00:20,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:20" (1/1) ... [2021-10-28 09:00:20,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:00:20,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:00:20,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:00:20,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:00:20,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:20" (1/1) ... [2021-10-28 09:00:20,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:20" (1/1) ... [2021-10-28 09:00:20,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:20" (1/1) ... [2021-10-28 09:00:20,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:20" (1/1) ... [2021-10-28 09:00:20,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:20" (1/1) ... [2021-10-28 09:00:20,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:20" (1/1) ... [2021-10-28 09:00:20,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:20" (1/1) ... [2021-10-28 09:00:20,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:00:20,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:00:20,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:00:20,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:00:20,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:20" (1/1) ... [2021-10-28 09:00:20,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:00:20,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:00:20,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:00:20,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:00:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:00:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:00:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:00:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:00:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:00:20,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:00:20,653 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:00:20,653 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 09:00:20,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:00:20 BoogieIcfgContainer [2021-10-28 09:00:20,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:00:20,656 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:00:20,656 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:00:20,660 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:00:20,661 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:00:20,662 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:00:19" (1/3) ... [2021-10-28 09:00:20,663 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72ffb1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:00:20, skipping insertion in model container [2021-10-28 09:00:20,663 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:00:20,663 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:20" (2/3) ... [2021-10-28 09:00:20,663 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72ffb1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:00:20, skipping insertion in model container [2021-10-28 09:00:20,664 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:00:20,664 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:00:20" (3/3) ... [2021-10-28 09:00:20,665 INFO L389 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcat-alloca-1.i [2021-10-28 09:00:20,711 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:00:20,712 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:00:20,712 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:00:20,712 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:00:20,712 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:00:20,712 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:00:20,713 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:00:20,713 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:00:20,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:00:20,744 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 09:00:20,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:00:20,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:00:20,753 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:00:20,758 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:00:20,758 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:00:20,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:00:20,761 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 09:00:20,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:00:20,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:00:20,775 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:00:20,775 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:00:20,782 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~ret12.base, main_#t~ret12.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 12#L559true assume !(main_~length1~0 < 1); 14#L559-2true assume !(main_~length2~0 < 2); 13#L562-1true assume !(main_~length3~0 < 1); 15#L565-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s.base, cstrcat_#in~s.offset, cstrcat_#in~append.base, cstrcat_#in~append.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset, cstrcat_#t~mem3, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s.base, cstrcat_~s.offset, cstrcat_~append.base, cstrcat_~append.offset, cstrcat_~save~0.base, cstrcat_~save~0.offset;cstrcat_~s.base, cstrcat_~s.offset := cstrcat_#in~s.base, cstrcat_#in~s.offset;cstrcat_~append.base, cstrcat_~append.offset := cstrcat_#in~append.base, cstrcat_#in~append.offset;cstrcat_~save~0.base, cstrcat_~save~0.offset := cstrcat_~s.base, cstrcat_~s.offset; 17#L551-4true [2021-10-28 09:00:20,782 INFO L793 eck$LassoCheckResult]: Loop: 17#L551-4true call cstrcat_#t~mem3 := read~int(cstrcat_~s.base, cstrcat_~s.offset, 1); 6#L551-1true assume !!(0 != cstrcat_#t~mem3);havoc cstrcat_#t~mem3; 7#L551-3true cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset := cstrcat_~s.base, 1 + cstrcat_~s.offset;cstrcat_~s.base, cstrcat_~s.offset := cstrcat_~s.base, 1 + cstrcat_~s.offset;havoc cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset; 17#L551-4true [2021-10-28 09:00:20,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:20,803 INFO L85 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2021-10-28 09:00:20,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:00:20,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593335579] [2021-10-28 09:00:20,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:20,827 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:00:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:00:21,002 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:00:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:00:21,093 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:00:21,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:21,109 INFO L85 PathProgramCache]: Analyzing trace with hash 58750, now seen corresponding path program 1 times [2021-10-28 09:00:21,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:00:21,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777131389] [2021-10-28 09:00:21,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:21,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:00:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:00:21,133 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:00:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:00:21,139 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:00:21,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:21,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1302197936, now seen corresponding path program 1 times [2021-10-28 09:00:21,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:00:21,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987550251] [2021-10-28 09:00:21,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:21,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:00:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:00:21,200 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:00:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:00:21,237 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:00:22,164 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:00:22,165 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:00:22,165 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:00:22,165 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:00:22,166 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:00:22,166 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:00:22,166 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:00:22,166 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:00:22,166 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcat-alloca-1.i_Iteration1_Lasso [2021-10-28 09:00:22,167 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:00:22,168 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:00:22,198 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 09:00:22,543 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 09:00:22,545 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 09:00:22,548 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 09:00:22,550 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 09:00:22,552 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 09:00:22,555 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 09:00:22,557 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 09:00:22,560 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 09:00:22,562 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 09:00:22,564 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 09:00:22,568 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 09:00:22,570 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 09:00:22,572 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 09:00:22,575 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 09:00:22,577 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 09:00:22,580 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 09:00:22,582 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 09:00:22,585 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 09:00:22,587 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 09:00:22,590 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 09:00:22,592 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 09:00:23,036 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:00:23,043 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:00:23,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:00:23,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:00:23,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:00:23,054 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 09:00:23,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:00:23,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:00:23,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:00:23,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:00:23,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:00:23,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:00:23,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:00:23,086 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:00:23,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:00:23,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:00:23,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:00:23,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:00:23,139 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 09:00:23,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:00:23,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:00:23,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:00:23,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:00:23,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:00:23,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:00:23,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:00:23,221 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:00:23,354 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2021-10-28 09:00:23,355 INFO L444 ModelExtractionUtils]: 13 out of 49 variables were initially zero. Simplification set additionally 33 variables to zero. [2021-10-28 09:00:23,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:00:23,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:00:23,386 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:00:23,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:00:23,455 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:00:23,480 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:00:23,480 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:00:23,481 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcat_~s.base)_1, ULTIMATE.start_cstrcat_~s.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcat_~s.base)_1 - 1*ULTIMATE.start_cstrcat_~s.offset Supporting invariants [] [2021-10-28 09:00:23,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:00:23,572 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-10-28 09:00:23,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:23,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:00:23,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:00:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:23,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:00:23,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:00:23,705 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 09:00:23,721 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 [2021-10-28 09:00:23,722 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:00:23,779 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 47 transitions. Complement of second has 7 states. [2021-10-28 09:00:23,780 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 [2021-10-28 09:00:23,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:00:23,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2021-10-28 09:00:23,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 09:00:23,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:00:23,786 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 9 letters. Loop has 3 letters. [2021-10-28 09:00:23,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:00:23,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 6 letters. Loop has 6 letters. [2021-10-28 09:00:23,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:00:23,788 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 47 transitions. [2021-10-28 09:00:23,795 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:00:23,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2021-10-28 09:00:23,799 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:00:23,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:00:23,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:00:23,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:00:23,800 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:00:23,800 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:00:23,800 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:00:23,801 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:00:23,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:00:23,801 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:00:23,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:00:23,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:00:23 BoogieIcfgContainer [2021-10-28 09:00:23,807 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:00:23,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:00:23,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:00:23,808 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:00:23,809 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:00:20" (3/4) ... [2021-10-28 09:00:23,812 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:00:23,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:00:23,814 INFO L168 Benchmark]: Toolchain (without parser) took 4116.04 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 85.1 MB in the beginning and 113.5 MB in the end (delta: -28.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:23,816 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory was 102.8 MB in the beginning and 102.7 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:00:23,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.69 ms. Allocated memory is still 125.8 MB. Free memory was 84.9 MB in the beginning and 93.6 MB in the end (delta: -8.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:23,819 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.14 ms. Allocated memory is still 125.8 MB. Free memory was 93.6 MB in the beginning and 91.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:23,820 INFO L168 Benchmark]: Boogie Preprocessor took 55.32 ms. Allocated memory is still 125.8 MB. Free memory was 91.7 MB in the beginning and 90.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:00:23,820 INFO L168 Benchmark]: RCFGBuilder took 401.68 ms. Allocated memory is still 125.8 MB. Free memory was 90.5 MB in the beginning and 78.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:23,822 INFO L168 Benchmark]: BuchiAutomizer took 3150.97 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 78.3 MB in the beginning and 113.5 MB in the end (delta: -35.2 MB). Peak memory consumption was 517.3 kB. Max. memory is 16.1 GB. [2021-10-28 09:00:23,827 INFO L168 Benchmark]: Witness Printer took 4.24 ms. Allocated memory is still 159.4 MB. Free memory is still 113.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:00:23,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory was 102.8 MB in the beginning and 102.7 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 421.69 ms. Allocated memory is still 125.8 MB. Free memory was 84.9 MB in the beginning and 93.6 MB in the end (delta: -8.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.14 ms. Allocated memory is still 125.8 MB. Free memory was 93.6 MB in the beginning and 91.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.32 ms. Allocated memory is still 125.8 MB. Free memory was 91.7 MB in the beginning and 90.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 401.68 ms. Allocated memory is still 125.8 MB. Free memory was 90.5 MB in the beginning and 78.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3150.97 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 78.3 MB in the beginning and 113.5 MB in the end (delta: -35.2 MB). Peak memory consumption was 517.3 kB. Max. memory is 16.1 GB. * Witness Printer took 4.24 ms. Allocated memory is still 159.4 MB. Free memory is still 113.5 MB. There was no memory consumed. 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 unknown-#length-unknown[s] + -1 * s and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. 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: 20 SDtfs, 22 SDslu, 14 SDs, 0 SdLazy, 4 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital187 mio100 ax109 hnf100 lsp88 ukn78 mio100 lsp50 div100 bol100 ite100 ukn100 eq186 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:00:23,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:00:24,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ed86dfc-7045-46f6-b59a-196a6a2689c0/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...