./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 75dd2ce3f6219a56f38a72471186bda1e7610d5c ........................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:52:55,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:52:55,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:52:55,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:52:55,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:52:55,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:52:55,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:52:55,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:52:55,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:52:55,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:52:55,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:52:55,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:52:55,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:52:55,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:52:55,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:52:55,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:52:55,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:52:55,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:52:55,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:52:55,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:52:55,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:52:55,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:52:55,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:52:55,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:52:55,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:52:55,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:52:55,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:52:55,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:52:55,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:52:55,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:52:55,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:52:55,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:52:55,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:52:55,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:52:55,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:52:55,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:52:55,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:52:55,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:52:55,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:52:55,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:52:55,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:52:55,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-13 07:52:55,513 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:52:55,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:52:55,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:52:55,515 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:52:55,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:52:55,515 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:52:55,515 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:52:55,522 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:52:55,522 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:52:55,523 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:52:55,524 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:52:55,524 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:52:55,524 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:52:55,524 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:52:55,525 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:52:55,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:52:55,525 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 07:52:55,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:52:55,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:52:55,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:52:55,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:52:55,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:52:55,527 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 07:52:55,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:52:55,527 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:52:55,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:52:55,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:52:55,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:52:55,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:52:55,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:52:55,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:52:55,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:52:55,530 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:52:55,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:52:55,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:52:55,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:52:55,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:52:55,531 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75dd2ce3f6219a56f38a72471186bda1e7610d5c [2021-10-13 07:52:55,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:52:55,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:52:55,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:52:55,824 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:52:55,827 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:52:55,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2021-10-13 07:52:55,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/data/da21594e6/032537e2b85a4beda30da14e3f86aebd/FLAG804e7fe02 [2021-10-13 07:52:56,369 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:52:56,370 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2021-10-13 07:52:56,377 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/data/da21594e6/032537e2b85a4beda30da14e3f86aebd/FLAG804e7fe02 [2021-10-13 07:52:56,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/data/da21594e6/032537e2b85a4beda30da14e3f86aebd [2021-10-13 07:52:56,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:52:56,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:52:56,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:52:56,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:52:56,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:52:56,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:52:56" (1/1) ... [2021-10-13 07:52:56,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d617d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:56, skipping insertion in model container [2021-10-13 07:52:56,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:52:56" (1/1) ... [2021-10-13 07:52:56,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:52:56,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:52:56,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:52:56,974 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:52:56,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:52:57,001 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:52:57,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:57 WrapperNode [2021-10-13 07:52:57,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:52:57,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:52:57,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:52:57,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:52:57,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:57" (1/1) ... [2021-10-13 07:52:57,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:57" (1/1) ... [2021-10-13 07:52:57,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:52:57,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:52:57,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:52:57,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:52:57,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:57" (1/1) ... [2021-10-13 07:52:57,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:57" (1/1) ... [2021-10-13 07:52:57,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:57" (1/1) ... [2021-10-13 07:52:57,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:57" (1/1) ... [2021-10-13 07:52:57,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:57" (1/1) ... [2021-10-13 07:52:57,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:57" (1/1) ... [2021-10-13 07:52:57,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:57" (1/1) ... [2021-10-13 07:52:57,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:52:57,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:52:57,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:52:57,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:52:57,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:57" (1/1) ... [2021-10-13 07:52:57,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:52:57,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:52:57,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:52:57,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:52:57,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:52:57,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:52:57,359 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:52:57,359 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 07:52:57,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:57 BoogieIcfgContainer [2021-10-13 07:52:57,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:52:57,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:52:57,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:52:57,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:52:57,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:52:56" (1/3) ... [2021-10-13 07:52:57,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d32f3e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:52:57, skipping insertion in model container [2021-10-13 07:52:57,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:57" (2/3) ... [2021-10-13 07:52:57,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d32f3e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:52:57, skipping insertion in model container [2021-10-13 07:52:57,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:57" (3/3) ... [2021-10-13 07:52:57,373 INFO L111 eAbstractionObserver]: Analyzing ICFG ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2021-10-13 07:52:57,379 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:52:57,380 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2021-10-13 07:52:57,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d32f3e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:52:57, skipping insertion in model container [2021-10-13 07:52:57,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:52:57,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:52:57,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:52:57,383 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:52:57,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:57" (3/3) ... [2021-10-13 07:52:57,388 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:52:57,398 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-13 07:52:57,398 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-13 07:52:57,398 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:52:57,435 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:52:57,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:52:57,438 INFO L168 Benchmark]: Toolchain (without parser) took 669.76 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 62.8 MB in the beginning and 84.8 MB in the end (delta: -22.0 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:52:57,439 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory is still 48.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:52:57,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.30 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 62.7 MB in the beginning and 99.9 MB in the end (delta: -37.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:52:57,440 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.16 ms. Allocated memory is still 121.6 MB. Free memory was 99.5 MB in the beginning and 98.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:52:57,441 INFO L168 Benchmark]: Boogie Preprocessor took 18.05 ms. Allocated memory is still 121.6 MB. Free memory was 98.3 MB in the beginning and 97.4 MB in the end (delta: 863.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:52:57,442 INFO L168 Benchmark]: RCFGBuilder took 309.85 ms. Allocated memory is still 121.6 MB. Free memory was 97.4 MB in the beginning and 88.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:52:57,443 INFO L168 Benchmark]: TraceAbstraction took 17.29 ms. Allocated memory is still 121.6 MB. Free memory was 88.2 MB in the beginning and 87.2 MB in the end (delta: 980.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:52:57,443 INFO L168 Benchmark]: Witness Printer took 52.90 ms. Allocated memory is still 121.6 MB. Free memory was 87.2 MB in the beginning and 84.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:52:57,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory is still 48.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 233.30 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 62.7 MB in the beginning and 99.9 MB in the end (delta: -37.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.16 ms. Allocated memory is still 121.6 MB. Free memory was 99.5 MB in the beginning and 98.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.05 ms. Allocated memory is still 121.6 MB. Free memory was 98.3 MB in the beginning and 97.4 MB in the end (delta: 863.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 309.85 ms. Allocated memory is still 121.6 MB. Free memory was 97.4 MB in the beginning and 88.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17.29 ms. Allocated memory is still 121.6 MB. Free memory was 88.2 MB in the beginning and 87.2 MB in the end (delta: 980.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Witness Printer took 52.90 ms. Allocated memory is still 121.6 MB. Free memory was 87.2 MB in the beginning and 84.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2021-10-13 07:52:57,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9e527b-6574-4133-a7ce-9806c90e2110/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...