./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrlen_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/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_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrlen_diffterm_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/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_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/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 c025debcc565a2dee63ce0651143a120d30d92e148bf87ae3ffecb509f27f776 --- 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 09:29:25,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:25,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:25,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:25,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:25,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:25,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:25,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:25,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:25,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:25,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:25,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:25,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:25,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:25,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:25,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:25,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:25,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:25,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:25,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:25,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:25,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:25,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:25,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:25,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:25,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:25,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:25,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:25,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:25,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:25,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:25,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:25,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:25,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:25,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:25,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:25,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:25,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:25,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:25,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:25,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:25,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 09:29:25,337 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:25,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:25,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:25,338 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:25,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:25,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:25,340 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:25,340 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 09:29:25,341 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 09:29:25,341 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 09:29:25,342 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 09:29:25,342 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 09:29:25,343 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 09:29:25,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:25,343 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:29:25,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:29:25,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:25,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 09:29:25,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 09:29:25,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 09:29:25,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:25,345 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 09:29:25,345 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:25,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 09:29:25,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:25,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:25,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:25,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:29:25,348 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 09:29:25,348 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_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c025debcc565a2dee63ce0651143a120d30d92e148bf87ae3ffecb509f27f776 [2022-11-20 09:29:25,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:25,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:25,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:25,784 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:25,785 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:25,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-15/cstrlen_diffterm_alloca.i [2022-11-20 09:29:29,132 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:29,497 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:29,498 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/sv-benchmarks/c/termination-15/cstrlen_diffterm_alloca.i [2022-11-20 09:29:29,515 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/data/0b60b8919/741bbc4f15c0438497ef6a9d6b471a7c/FLAGe8dfcee19 [2022-11-20 09:29:29,535 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/data/0b60b8919/741bbc4f15c0438497ef6a9d6b471a7c [2022-11-20 09:29:29,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:29,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:29,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:29,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:29,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:29,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:29,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb303c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29, skipping insertion in model container [2022-11-20 09:29:29,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:29,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:29,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:29,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:30,015 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:29:30,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:30,124 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:29:30,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30 WrapperNode [2022-11-20 09:29:30,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:30,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:30,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:29:30,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:29:30,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,196 INFO L138 Inliner]: procedures = 152, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-20 09:29:30,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:30,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:29:30,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:29:30,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:29:30,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:29:30,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:29:30,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:29:30,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:29:30,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:30,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:30,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:30,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 09:29:30,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:29:30,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:29:30,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:29:30,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:29:30,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:29:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:29:30,441 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:29:30,444 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:29:30,557 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:29:30,563 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:29:30,564 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:29:30,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:30 BoogieIcfgContainer [2022-11-20 09:29:30,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:29:30,567 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 09:29:30,568 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 09:29:30,572 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 09:29:30,573 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:29:30,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 09:29:29" (1/3) ... [2022-11-20 09:29:30,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13585a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:29:30, skipping insertion in model container [2022-11-20 09:29:30,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:29:30,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30" (2/3) ... [2022-11-20 09:29:30,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13585a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:29:30, skipping insertion in model container [2022-11-20 09:29:30,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:29:30,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:30" (3/3) ... [2022-11-20 09:29:30,578 INFO L332 chiAutomizerObserver]: Analyzing ICFG cstrlen_diffterm_alloca.i [2022-11-20 09:29:30,666 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 09:29:30,666 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 09:29:30,666 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 09:29:30,666 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 09:29:30,667 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 09:29:30,667 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 09:29:30,667 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 09:29:30,667 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 09:29:30,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 09:29:30,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 09:29:30,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:29:30,708 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:29:30,715 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 09:29:30,715 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 09:29:30,715 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 09:29:30,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 09:29:30,717 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 09:29:30,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:29:30,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:29:30,718 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 09:29:30,718 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 09:29:30,727 INFO L748 eck$LassoCheckResult]: Stem: 4#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~nondet207#1, main_#t~malloc208#1.base, main_#t~malloc208#1.offset, main_#t~ret209#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 11#L373true assume !(main_~length1~0#1 < 1); 9#L373-2true call main_#t~malloc208#1.base, main_#t~malloc208#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc208#1.base, main_#t~malloc208#1.offset;call write~int(49, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrlen } true;cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrlen_#res#1;havoc cstrlen_#t~post206#1.base, cstrlen_#t~post206#1.offset, cstrlen_#t~mem205#1, cstrlen_~s#1.base, cstrlen_~s#1.offset, cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~s#1.base, cstrlen_~s#1.offset := cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_~s#1.base, cstrlen_~s#1.offset; 2#L367-3true [2022-11-20 09:29:30,728 INFO L750 eck$LassoCheckResult]: Loop: 2#L367-3true call cstrlen_#t~mem205#1 := read~int(cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset, 1); 10#L367-1true assume !!(49 != cstrlen_#t~mem205#1);havoc cstrlen_#t~mem205#1;cstrlen_#t~post206#1.base, cstrlen_#t~post206#1.offset := cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_#t~post206#1.base, 1 + cstrlen_#t~post206#1.offset;havoc cstrlen_#t~post206#1.base, cstrlen_#t~post206#1.offset; 2#L367-3true [2022-11-20 09:29:30,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:30,735 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2022-11-20 09:29:30,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:30,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967327652] [2022-11-20 09:29:30,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:30,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:30,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:29:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:30,986 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:29:30,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:30,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2022-11-20 09:29:30,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:30,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965048630] [2022-11-20 09:29:30,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:30,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:31,002 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:29:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:31,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:29:31,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:31,013 INFO L85 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2022-11-20 09:29:31,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:31,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075402495] [2022-11-20 09:29:31,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:31,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:31,066 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:29:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:31,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:29:31,736 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:29:31,738 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:29:31,738 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:29:31,738 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:29:31,738 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:29:31,738 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:31,739 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:29:31,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:29:31,740 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen_diffterm_alloca.i_Iteration1_Lasso [2022-11-20 09:29:31,740 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:29:31,740 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:29:31,770 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:32,171 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:32,176 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:32,180 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:32,183 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:32,186 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:32,190 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:32,194 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:32,199 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:32,204 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:32,733 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:29:32,738 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:29:32,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:32,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:32,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:32,759 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 [2022-11-20 09:29:32,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 09:29:32,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:32,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:32,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:32,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:32,789 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:32,789 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:32,808 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:32,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:32,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:32,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:32,827 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:32,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 09:29:32,836 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 [2022-11-20 09:29:32,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:32,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:32,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:32,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:32,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:32,873 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:32,896 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:29:32,939 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-11-20 09:29:32,940 INFO L444 ModelExtractionUtils]: 18 out of 31 variables were initially zero. Simplification set additionally 10 variables to zero. [2022-11-20 09:29:32,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:32,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:32,991 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:33,035 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:29:33,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 09:29:33,072 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-20 09:29:33,072 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:29:33,073 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc208#1.base)_1) = -1*ULTIMATE.start_cstrlen_~p~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc208#1.base)_1 Supporting invariants [] [2022-11-20 09:29:33,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:33,108 INFO L156 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2022-11-20 09:29:33,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 09:29:33,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,246 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:29:33,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:33,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:33,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:33,379 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 09:29:33,382 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 09:29:33,458 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 20 states and 23 transitions. Complement of second has 6 states. [2022-11-20 09:29:33,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 09:29:33,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 09:29:33,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-20 09:29:33,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-20 09:29:33,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:33,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-20 09:29:33,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:33,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-20 09:29:33,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:33,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2022-11-20 09:29:33,486 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 09:29:33,489 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2022-11-20 09:29:33,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 09:29:33,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 09:29:33,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 09:29:33,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:33,493 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:29:33,493 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:29:33,493 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:29:33,494 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 09:29:33,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 09:29:33,494 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 09:29:33,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 09:29:33,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 09:29:33 BoogieIcfgContainer [2022-11-20 09:29:33,504 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 09:29:33,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:29:33,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:29:33,507 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:29:33,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:30" (3/4) ... [2022-11-20 09:29:33,512 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 09:29:33,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:29:33,513 INFO L158 Benchmark]: Toolchain (without parser) took 3972.13ms. Allocated memory is still 144.7MB. Free memory was 109.6MB in the beginning and 105.4MB in the end (delta: 4.3MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-11-20 09:29:33,514 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 144.7MB. Free memory was 113.6MB in the beginning and 113.5MB in the end (delta: 74.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:33,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 580.58ms. Allocated memory is still 144.7MB. Free memory was 109.6MB in the beginning and 92.5MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 09:29:33,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.45ms. Allocated memory is still 144.7MB. Free memory was 92.5MB in the beginning and 90.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:29:33,521 INFO L158 Benchmark]: Boogie Preprocessor took 54.94ms. Allocated memory is still 144.7MB. Free memory was 90.5MB in the beginning and 89.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:29:33,528 INFO L158 Benchmark]: RCFGBuilder took 313.04ms. Allocated memory is still 144.7MB. Free memory was 89.2MB in the beginning and 78.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 09:29:33,530 INFO L158 Benchmark]: BuchiAutomizer took 2936.76ms. Allocated memory is still 144.7MB. Free memory was 78.7MB in the beginning and 106.3MB in the end (delta: -27.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:33,531 INFO L158 Benchmark]: Witness Printer took 5.94ms. Allocated memory is still 144.7MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:33,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 144.7MB. Free memory was 113.6MB in the beginning and 113.5MB in the end (delta: 74.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 580.58ms. Allocated memory is still 144.7MB. Free memory was 109.6MB in the beginning and 92.5MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.45ms. Allocated memory is still 144.7MB. Free memory was 92.5MB in the beginning and 90.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.94ms. Allocated memory is still 144.7MB. Free memory was 90.5MB in the beginning and 89.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.04ms. Allocated memory is still 144.7MB. Free memory was 89.2MB in the beginning and 78.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2936.76ms. Allocated memory is still 144.7MB. Free memory was 78.7MB in the beginning and 106.3MB in the end (delta: -27.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.94ms. Allocated memory is still 144.7MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * 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[__builtin_alloca(length1 * sizeof(char))] + -1 * p and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 6 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital122 mio100 ax100 hnf100 lsp95 ukn100 mio100 lsp52 div156 bol100 ite100 ukn100 eq168 hnf91 smp71 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 68ms VariablesStem: 6 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-20 09:29:33,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a80b94-f4bb-4615-ae36-bf4e8156f9a2/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 Result: TRUE