./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be --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 6035b877cf5662dbb37e282fa5888bad3b139de1b72c90935b5c8058813605dd ................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:35:34,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:35:34,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:35:34,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:35:34,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:35:34,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:35:34,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:35:34,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:35:34,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:35:34,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:35:34,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:35:34,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:35:34,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:35:34,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:35:34,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:35:34,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:35:34,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:35:34,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:35:34,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:35:34,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:35:34,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:35:34,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:35:34,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:35:34,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:35:34,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:35:34,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:35:34,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:35:34,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:35:34,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:35:34,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:35:34,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:35:34,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:35:34,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:35:34,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:35:34,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:35:34,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:35:34,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:35:34,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:35:34,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:35:34,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:35:34,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:35:34,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:35:34,455 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:35:34,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:35:34,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:35:34,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:35:34,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:35:34,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:35:34,459 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:35:34,459 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:35:34,459 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:35:34,459 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:35:34,460 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:35:34,461 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:35:34,461 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:35:34,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:35:34,461 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:35:34,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:35:34,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:35:34,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:35:34,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:35:34,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:35:34,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:35:34,463 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:35:34,463 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:35:34,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:35:34,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:35:34,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:35:34,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:35:34,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:35:34,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:35:34,467 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:35:34,467 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_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6035b877cf5662dbb37e282fa5888bad3b139de1b72c90935b5c8058813605dd [2021-10-21 19:35:34,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:35:34,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:35:34,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:35:34,749 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:35:34,749 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:35:34,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2021-10-21 19:35:34,814 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/data/533c4cbbb/bd2e92abd6714e99a2de1e607643c1fc/FLAG0e4bc2b57 [2021-10-21 19:35:35,308 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:35:35,308 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2021-10-21 19:35:35,328 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/data/533c4cbbb/bd2e92abd6714e99a2de1e607643c1fc/FLAG0e4bc2b57 [2021-10-21 19:35:35,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/data/533c4cbbb/bd2e92abd6714e99a2de1e607643c1fc [2021-10-21 19:35:35,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:35:35,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:35:35,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:35:35,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:35:35,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:35:35,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:35:35" (1/1) ... [2021-10-21 19:35:35,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be88ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:35, skipping insertion in model container [2021-10-21 19:35:35,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:35:35" (1/1) ... [2021-10-21 19:35:35,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:35:35,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:35:36,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:35:36,101 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:35:36,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:35:36,194 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:35:36,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:36 WrapperNode [2021-10-21 19:35:36,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:35:36,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:35:36,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:35:36,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:35:36,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:36" (1/1) ... [2021-10-21 19:35:36,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:36" (1/1) ... [2021-10-21 19:35:36,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:35:36,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:35:36,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:35:36,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:35:36,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:36" (1/1) ... [2021-10-21 19:35:36,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:36" (1/1) ... [2021-10-21 19:35:36,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:36" (1/1) ... [2021-10-21 19:35:36,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:36" (1/1) ... [2021-10-21 19:35:36,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:36" (1/1) ... [2021-10-21 19:35:36,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:36" (1/1) ... [2021-10-21 19:35:36,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:36" (1/1) ... [2021-10-21 19:35:36,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:35:36,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:35:36,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:35:36,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:35:36,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:36" (1/1) ... [2021-10-21 19:35:36,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:35:36,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:35:36,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:35:36,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:35:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:35:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:35:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:35:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:35:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:35:36,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:35:36,532 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:35:36,533 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:35:36,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:35:36 BoogieIcfgContainer [2021-10-21 19:35:36,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:35:36,536 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:35:36,536 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:35:36,554 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:35:36,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:35:36,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:35:35" (1/3) ... [2021-10-21 19:35:36,555 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@514909c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:35:36, skipping insertion in model container [2021-10-21 19:35:36,556 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:35:36,556 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:35:36" (2/3) ... [2021-10-21 19:35:36,565 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@514909c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:35:36, skipping insertion in model container [2021-10-21 19:35:36,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:35:36,565 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:35:36" (3/3) ... [2021-10-21 19:35:36,566 INFO L389 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig1-alloca.i [2021-10-21 19:35:36,637 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:35:36,637 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:35:36,637 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:35:36,637 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:35:36,638 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:35:36,638 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:35:36,638 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:35:36,638 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:35:36,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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) [2021-10-21 19:35:36,670 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:35:36,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:35:36,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:35:36,676 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:35:36,676 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:35:36,676 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:35:36,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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) [2021-10-21 19:35:36,678 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:35:36,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:35:36,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:35:36,678 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:35:36,678 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:35:36,685 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem4, main_#t~mem5, main_#t~mem3, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset; 7#L549-2true [2021-10-21 19:35:36,685 INFO L793 eck$LassoCheckResult]: Loop: 7#L549-2true call main_#t~mem3 := read~int(main_~x~0.base, main_~x~0.offset, 4); 10#L548-1true assume !!(main_#t~mem3 <= 10);havoc main_#t~mem3;call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 8#L549true assume !(main_#t~mem4 > 6);havoc main_#t~mem4; 7#L549-2true [2021-10-21 19:35:36,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:36,691 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-21 19:35:36,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:36,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430039851] [2021-10-21 19:35:36,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:36,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:35:36,791 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:35:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:35:36,818 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:35:36,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:36,821 INFO L82 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 1 times [2021-10-21 19:35:36,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:36,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022702275] [2021-10-21 19:35:36,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:36,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:35:36,835 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:35:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:35:36,845 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:35:36,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:35:36,847 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2021-10-21 19:35:36,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:35:36,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774052323] [2021-10-21 19:35:36,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:35:36,848 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:35:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:35:36,865 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:35:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:35:36,883 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:35:37,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:35:37 BoogieIcfgContainer [2021-10-21 19:35:37,226 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:35:37,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:35:37,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:35:37,227 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:35:37,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:35:36" (3/4) ... [2021-10-21 19:35:37,230 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:35:37,267 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:35:37,268 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:35:37,269 INFO L168 Benchmark]: Toolchain (without parser) took 1618.61 ms. Allocated memory is still 100.7 MB. Free memory was 64.5 MB in the beginning and 70.6 MB in the end (delta: -6.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:35:37,271 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 100.7 MB. Free memory was 82.0 MB in the beginning and 81.9 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:35:37,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.71 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 70.9 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:37,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.90 ms. Allocated memory is still 100.7 MB. Free memory was 70.9 MB in the beginning and 69.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:37,280 INFO L168 Benchmark]: Boogie Preprocessor took 20.86 ms. Allocated memory is still 100.7 MB. Free memory was 69.4 MB in the beginning and 68.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:37,280 INFO L168 Benchmark]: RCFGBuilder took 278.49 ms. Allocated memory is still 100.7 MB. Free memory was 68.0 MB in the beginning and 59.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:37,281 INFO L168 Benchmark]: BuchiAutomizer took 690.40 ms. Allocated memory is still 100.7 MB. Free memory was 59.3 MB in the beginning and 72.1 MB in the end (delta: -12.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:37,282 INFO L168 Benchmark]: Witness Printer took 41.29 ms. Allocated memory is still 100.7 MB. Free memory was 72.1 MB in the beginning and 70.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:35:37,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 100.7 MB. Free memory was 82.0 MB in the beginning and 81.9 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 543.71 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 70.9 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.90 ms. Allocated memory is still 100.7 MB. Free memory was 70.9 MB in the beginning and 69.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.86 ms. Allocated memory is still 100.7 MB. Free memory was 69.4 MB in the beginning and 68.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 278.49 ms. Allocated memory is still 100.7 MB. Free memory was 68.0 MB in the beginning and 59.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 690.40 ms. Allocated memory is still 100.7 MB. Free memory was 59.3 MB in the beginning and 72.1 MB in the end (delta: -12.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. * Witness Printer took 41.29 ms. Allocated memory is still 100.7 MB. Free memory was 72.1 MB in the beginning and 70.6 MB in the end (delta: 1.6 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 548]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@250a38a9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@616885d3=2, NULL=0, NULL=0, x=2, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@616885d3=0, x=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@32df3825=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@34ef6368=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 548]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L547] int* x = __builtin_alloca (sizeof(int)); Loop: [L548] EXPR \read(*x) [L548] COND TRUE *x <= 10 [L549] EXPR \read(*x) [L549] COND FALSE !(*x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:35:37,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7544a740-1765-4a05-b573-410df9c0ea72/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...