./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/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_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN --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 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:37:09,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:37:09,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:37:09,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:37:09,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:37:09,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:37:09,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:37:09,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:37:09,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:37:09,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:37:09,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:37:09,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:37:09,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:37:09,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:37:09,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:37:09,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:37:09,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:37:09,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:37:09,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:37:09,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:37:09,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:37:09,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:37:09,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:37:09,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:37:09,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:37:09,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:37:09,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:37:09,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:37:09,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:37:09,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:37:09,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:37:09,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:37:09,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:37:09,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:37:09,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:37:09,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:37:09,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:37:09,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:37:09,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:37:09,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:37:09,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:37:09,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 09:37:09,985 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:37:09,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:37:09,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:37:09,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:37:09,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:37:09,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:37:09,988 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:37:09,988 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 09:37:09,989 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 09:37:09,989 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 09:37:09,990 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 09:37:09,990 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 09:37:09,990 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 09:37:09,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:37:09,991 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:37:09,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:37:09,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:37:09,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 09:37:09,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 09:37:09,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 09:37:09,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:37:09,992 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 09:37:09,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:37:09,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 09:37:09,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:37:09,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:37:09,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:37:09,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:37:09,995 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 09:37:09,995 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_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6035b877cf5662dbb37e282fa5888bad3b139de1b72c90935b5c8058813605dd [2022-11-20 09:37:10,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:37:10,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:37:10,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:37:10,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:37:10,394 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:37:10,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2022-11-20 09:37:13,512 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:37:13,752 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:37:13,753 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2022-11-20 09:37:13,766 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/data/912dc1d80/5b7c4b6ca533482ebdfc859621f0228b/FLAGfa0fd19e0 [2022-11-20 09:37:13,781 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/data/912dc1d80/5b7c4b6ca533482ebdfc859621f0228b [2022-11-20 09:37:13,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:37:13,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:37:13,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:37:13,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:37:13,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:37:13,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:37:13" (1/1) ... [2022-11-20 09:37:13,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f8873ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:13, skipping insertion in model container [2022-11-20 09:37:13,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:37:13" (1/1) ... [2022-11-20 09:37:13,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:37:13,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:37:14,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:37:14,269 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:37:14,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:37:14,424 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:37:14,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14 WrapperNode [2022-11-20 09:37:14,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:37:14,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:37:14,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:37:14,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:37:14,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14" (1/1) ... [2022-11-20 09:37:14,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14" (1/1) ... [2022-11-20 09:37:14,499 INFO L138 Inliner]: procedures = 109, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-20 09:37:14,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:37:14,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:37:14,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:37:14,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:37:14,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14" (1/1) ... [2022-11-20 09:37:14,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14" (1/1) ... [2022-11-20 09:37:14,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14" (1/1) ... [2022-11-20 09:37:14,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14" (1/1) ... [2022-11-20 09:37:14,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14" (1/1) ... [2022-11-20 09:37:14,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14" (1/1) ... [2022-11-20 09:37:14,527 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14" (1/1) ... [2022-11-20 09:37:14,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14" (1/1) ... [2022-11-20 09:37:14,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:37:14,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:37:14,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:37:14,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:37:14,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14" (1/1) ... [2022-11-20 09:37:14,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:37:14,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:37:14,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:37:14,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 09:37:14,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:37:14,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:37:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:37:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:37:14,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:37:14,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:37:14,756 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:37:14,759 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:37:14,835 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:37:14,841 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:37:14,841 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:37:14,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:37:14 BoogieIcfgContainer [2022-11-20 09:37:14,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:37:14,845 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 09:37:14,845 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 09:37:14,849 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 09:37:14,850 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:37:14,850 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 09:37:13" (1/3) ... [2022-11-20 09:37:14,851 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d4de4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:37:14, skipping insertion in model container [2022-11-20 09:37:14,851 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:37:14,852 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:37:14" (2/3) ... [2022-11-20 09:37:14,852 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d4de4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:37:14, skipping insertion in model container [2022-11-20 09:37:14,852 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:37:14,852 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:37:14" (3/3) ... [2022-11-20 09:37:14,854 INFO L332 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig1-alloca.i [2022-11-20 09:37:14,911 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 09:37:14,925 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 09:37:14,925 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 09:37:14,925 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 09:37:14,925 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 09:37:14,925 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 09:37:14,926 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 09:37:14,926 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 09:37:14,930 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) [2022-11-20 09:37:14,964 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 09:37:14,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:37:14,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:37:14,982 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 09:37:14,983 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:37:14,983 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 09:37:14,983 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) [2022-11-20 09:37:14,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 09:37:14,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:37:14,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:37:14,985 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 09:37:14,985 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:37:14,994 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~mem4#1, main_#t~mem5#1, main_#t~mem3#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset; 6#L549-2true [2022-11-20 09:37:14,994 INFO L750 eck$LassoCheckResult]: Loop: 6#L549-2true call main_#t~mem3#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 9#L548-1true assume !!(main_#t~mem3#1 <= 10);havoc main_#t~mem3#1;call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 7#L549true assume !(main_#t~mem4#1 > 6);havoc main_#t~mem4#1; 6#L549-2true [2022-11-20 09:37:15,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:15,001 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 09:37:15,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:15,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196105878] [2022-11-20 09:37:15,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:15,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:37:15,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:37:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:37:15,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:37:15,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:15,253 INFO L85 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 1 times [2022-11-20 09:37:15,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:15,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485944293] [2022-11-20 09:37:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:15,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:37:15,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:37:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:37:15,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:37:15,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:15,311 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2022-11-20 09:37:15,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:15,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998710444] [2022-11-20 09:37:15,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:15,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:37:15,339 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:37:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:37:15,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:37:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:37:15,619 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:37:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:37:15,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 09:37:15 BoogieIcfgContainer [2022-11-20 09:37:15,651 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 09:37:15,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:37:15,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:37:15,653 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:37:15,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:37:14" (3/4) ... [2022-11-20 09:37:15,656 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 09:37:15,698 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:37:15,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:37:15,701 INFO L158 Benchmark]: Toolchain (without parser) took 1913.88ms. Allocated memory is still 167.8MB. Free memory was 101.6MB in the beginning and 93.0MB in the end (delta: 8.7MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-11-20 09:37:15,702 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 167.8MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:37:15,704 INFO L158 Benchmark]: CACSL2BoogieTranslator took 638.88ms. Allocated memory is still 167.8MB. Free memory was 101.4MB in the beginning and 135.8MB in the end (delta: -34.3MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-11-20 09:37:15,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.09ms. Allocated memory is still 167.8MB. Free memory was 135.8MB in the beginning and 133.7MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 09:37:15,710 INFO L158 Benchmark]: Boogie Preprocessor took 29.63ms. Allocated memory is still 167.8MB. Free memory was 133.7MB in the beginning and 132.8MB in the end (delta: 837.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:37:15,711 INFO L158 Benchmark]: RCFGBuilder took 313.00ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 123.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 09:37:15,711 INFO L158 Benchmark]: BuchiAutomizer took 806.90ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 94.4MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-20 09:37:15,712 INFO L158 Benchmark]: Witness Printer took 46.22ms. Allocated memory is still 167.8MB. Free memory was 94.4MB in the beginning and 93.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:37:15,720 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 167.8MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 638.88ms. Allocated memory is still 167.8MB. Free memory was 101.4MB in the beginning and 135.8MB in the end (delta: -34.3MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.09ms. Allocated memory is still 167.8MB. Free memory was 135.8MB in the beginning and 133.7MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.63ms. Allocated memory is still 167.8MB. Free memory was 133.7MB in the beginning and 132.8MB in the end (delta: 837.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 313.00ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 123.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 806.90ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 94.4MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 46.22ms. Allocated memory is still 167.8MB. Free memory was 94.4MB in the beginning and 93.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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: 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 548]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L547] int* x = __builtin_alloca (sizeof(int)); VAL [__builtin_alloca (sizeof(int))={2:0}, x={2:0}] Loop: [L548] EXPR \read(*x) [L548] COND TRUE *x <= 10 [L549] EXPR \read(*x) [L549] COND FALSE !(*x > 6) End of lasso representation. - 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)); VAL [__builtin_alloca (sizeof(int))={2:0}, x={2:0}] 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! [2022-11-20 09:37:15,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ee486f-6b45-4dfe-9f4b-21cda9e10803/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)