./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore_v2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 38b53e6a 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_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore_v2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R --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 d97ba8b69128e43b30f4e3953a96913f3683509f4de403028a4cfb023afba567 --- 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-38b53e6 [2022-11-25 18:33:14,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:33:14,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:33:14,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:33:14,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:33:14,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:33:14,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:33:14,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:33:14,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:33:14,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:33:14,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:33:14,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:33:14,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:33:14,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:33:14,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:33:14,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:33:14,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:33:14,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:33:14,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:33:14,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:33:14,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:33:14,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:33:14,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:33:14,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:33:14,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:33:14,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:33:14,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:33:14,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:33:14,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:33:14,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:33:14,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:33:14,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:33:14,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:33:14,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:33:14,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:33:14,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:33:14,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:33:14,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:33:14,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:33:14,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:33:14,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:33:14,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-25 18:33:14,481 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:33:14,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:33:14,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:33:14,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:33:14,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:33:14,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:33:14,485 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:33:14,486 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 18:33:14,486 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 18:33:14,486 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 18:33:14,488 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 18:33:14,488 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 18:33:14,489 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 18:33:14,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:33:14,490 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:33:14,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:33:14,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:33:14,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 18:33:14,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 18:33:14,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 18:33:14,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:33:14,492 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 18:33:14,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:33:14,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 18:33:14,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:33:14,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:33:14,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:33:14,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:33:14,498 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 18:33:14,498 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_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d97ba8b69128e43b30f4e3953a96913f3683509f4de403028a4cfb023afba567 [2022-11-25 18:33:14,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:33:14,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:33:14,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:33:14,913 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:33:14,913 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:33:14,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted/Bangalore_v2.c [2022-11-25 18:33:18,389 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:33:18,601 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:33:18,602 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/sv-benchmarks/c/termination-crafted/Bangalore_v2.c [2022-11-25 18:33:18,609 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/data/fd79c3475/5401d170917c49bc8ff98275ebd3fa88/FLAG84c31fa10 [2022-11-25 18:33:18,629 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/data/fd79c3475/5401d170917c49bc8ff98275ebd3fa88 [2022-11-25 18:33:18,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:33:18,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:33:18,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:33:18,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:33:18,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:33:18,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39711cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18, skipping insertion in model container [2022-11-25 18:33:18,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:33:18,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:33:18,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:33:18,882 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:33:18,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:33:18,906 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:33:18,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18 WrapperNode [2022-11-25 18:33:18,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:33:18,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:33:18,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:33:18,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:33:18,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,941 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-11-25 18:33:18,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:33:18,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:33:18,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:33:18,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:33:18,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,961 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:33:18,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:33:18,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:33:18,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:33:18,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18" (1/1) ... [2022-11-25 18:33:18,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:33:18,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:33:18,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:33:19,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 18:33:19,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:33:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:33:19,117 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:33:19,119 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:33:19,214 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:33:19,222 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:33:19,223 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:33:19,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:19 BoogieIcfgContainer [2022-11-25 18:33:19,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:33:19,234 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 18:33:19,234 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 18:33:19,239 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 18:33:19,240 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:33:19,241 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 06:33:18" (1/3) ... [2022-11-25 18:33:19,242 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7eb6392d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 06:33:19, skipping insertion in model container [2022-11-25 18:33:19,242 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:33:19,243 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:18" (2/3) ... [2022-11-25 18:33:19,246 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7eb6392d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 06:33:19, skipping insertion in model container [2022-11-25 18:33:19,247 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:33:19,247 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:19" (3/3) ... [2022-11-25 18:33:19,249 INFO L332 chiAutomizerObserver]: Analyzing ICFG Bangalore_v2.c [2022-11-25 18:33:19,337 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 18:33:19,338 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 18:33:19,338 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 18:33:19,338 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 18:33:19,338 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 18:33:19,339 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 18:33:19,339 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 18:33:19,339 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 18:33:19,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-11-25 18:33:19,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-25 18:33:19,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:33:19,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:33:19,372 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-25 18:33:19,372 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-25 18:33:19,372 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 18:33:19,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-11-25 18:33:19,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-25 18:33:19,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:33:19,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:33:19,375 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-25 18:33:19,375 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-25 18:33:19,384 INFO L748 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 2#L16true assume main_~y~0#1 >= 0; 4#L17-2true [2022-11-25 18:33:19,384 INFO L750 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~y~0#1; 4#L17-2true [2022-11-25 18:33:19,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:19,392 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-11-25 18:33:19,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:19,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102829217] [2022-11-25 18:33:19,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:19,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:33:19,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:33:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:33:19,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:33:19,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:19,542 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2022-11-25 18:33:19,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:19,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266163873] [2022-11-25 18:33:19,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:19,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:33:19,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:33:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:33:19,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:33:19,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:19,578 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2022-11-25 18:33:19,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:19,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215005978] [2022-11-25 18:33:19,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:19,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:33:19,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:33:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:33:19,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:33:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:33:19,733 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:33:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:33:19,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 06:33:19 BoogieIcfgContainer [2022-11-25 18:33:19,785 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 18:33:19,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:33:19,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:33:19,786 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:33:19,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:19" (3/4) ... [2022-11-25 18:33:19,790 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-25 18:33:19,860 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:33:19,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:33:19,862 INFO L158 Benchmark]: Toolchain (without parser) took 1227.47ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 69.4MB in the end (delta: 38.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-25 18:33:19,862 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory was 96.9MB in the beginning and 96.7MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:33:19,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.99ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 98.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 18:33:19,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.32ms. Allocated memory is still 153.1MB. Free memory was 98.8MB in the beginning and 97.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:33:19,867 INFO L158 Benchmark]: Boogie Preprocessor took 20.72ms. Allocated memory is still 153.1MB. Free memory was 97.3MB in the beginning and 96.7MB in the end (delta: 596.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:33:19,868 INFO L158 Benchmark]: RCFGBuilder took 268.98ms. Allocated memory is still 153.1MB. Free memory was 96.0MB in the beginning and 87.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 18:33:19,872 INFO L158 Benchmark]: BuchiAutomizer took 551.23ms. Allocated memory is still 153.1MB. Free memory was 87.5MB in the beginning and 70.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 18:33:19,872 INFO L158 Benchmark]: Witness Printer took 74.41ms. Allocated memory is still 153.1MB. Free memory was 70.8MB in the beginning and 69.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:33:19,875 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 121.6MB. Free memory was 96.9MB in the beginning and 96.7MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.99ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 98.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.32ms. Allocated memory is still 153.1MB. Free memory was 98.8MB in the beginning and 97.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.72ms. Allocated memory is still 153.1MB. Free memory was 97.3MB in the beginning and 96.7MB in the end (delta: 596.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 268.98ms. Allocated memory is still 153.1MB. Free memory was 96.0MB in the beginning and 87.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 551.23ms. Allocated memory is still 153.1MB. Free memory was 87.5MB in the beginning and 70.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 74.41ms. Allocated memory is still 153.1MB. Free memory was 70.8MB in the beginning and 69.4MB in the end (delta: 1.4MB). 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. 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: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L12] int x; [L13] int y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] COND TRUE y >= 0 VAL [y=0] Loop: [L17] COND TRUE x >= 0 [L18] x = x - y End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] int y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] COND TRUE y >= 0 VAL [y=0] Loop: [L17] COND TRUE x >= 0 [L18] x = x - y End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-25 18:33:19,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_792125f1-595a-4a1a-977d-628c23df637f/bin/uautomizer-ZsLfNo2U6R/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)