./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 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/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_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF --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 c06467573d5b161d2e6fae8b3debbeebc37f400272e6a21d533eff435db2aec4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:41:10,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:41:10,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:41:10,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:41:10,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:41:10,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:41:10,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:41:10,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:41:10,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:41:10,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:41:10,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:41:10,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:41:10,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:41:10,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:41:10,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:41:10,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:41:10,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:41:10,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:41:10,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:41:10,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:41:10,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:41:10,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:41:10,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:41:10,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:41:10,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:41:10,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:41:10,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:41:10,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:41:10,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:41:10,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:41:10,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:41:10,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:41:10,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:41:10,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:41:10,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:41:10,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:41:10,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:41:10,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:41:10,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:41:10,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:41:10,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:41:10,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-12 22:41:10,565 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:41:10,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:41:10,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:41:10,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:41:10,568 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:41:10,568 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:41:10,568 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:41:10,568 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:41:10,568 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:41:10,569 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:41:10,576 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:41:10,576 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:41:10,576 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:41:10,577 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:41:10,577 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:41:10,577 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:41:10,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:41:10,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:41:10,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:41:10,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:41:10,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:41:10,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:41:10,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:41:10,580 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-12 22:41:10,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:41:10,580 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:41:10,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:41:10,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:41:10,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:41:10,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:10,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:41:10,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:41:10,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:41:10,584 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:41:10,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:41:10,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:41:10,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:41:10,585 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:41:10,585 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_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c06467573d5b161d2e6fae8b3debbeebc37f400272e6a21d533eff435db2aec4 [2021-11-12 22:41:10,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:41:10,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:41:10,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:41:10,878 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:41:10,879 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:41:10,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2021-11-12 22:41:10,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/data/ef2baca7b/890506d8f4c14d5d844bb7c394b72014/FLAG7a8f3d049 [2021-11-12 22:41:11,365 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:41:11,366 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2021-11-12 22:41:11,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/data/ef2baca7b/890506d8f4c14d5d844bb7c394b72014/FLAG7a8f3d049 [2021-11-12 22:41:11,775 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/data/ef2baca7b/890506d8f4c14d5d844bb7c394b72014 [2021-11-12 22:41:11,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:41:11,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:41:11,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:11,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:41:11,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:41:11,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:11" (1/1) ... [2021-11-12 22:41:11,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b0c881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:11, skipping insertion in model container [2021-11-12 22:41:11,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:11" (1/1) ... [2021-11-12 22:41:11,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:41:11,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:41:11,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:11,957 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:41:11,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:12,005 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:41:12,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12 WrapperNode [2021-11-12 22:41:12,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:12,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:12,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:41:12,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:41:12,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12" (1/1) ... [2021-11-12 22:41:12,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12" (1/1) ... [2021-11-12 22:41:12,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:12,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:41:12,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:41:12,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:41:12,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12" (1/1) ... [2021-11-12 22:41:12,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12" (1/1) ... [2021-11-12 22:41:12,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12" (1/1) ... [2021-11-12 22:41:12,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12" (1/1) ... [2021-11-12 22:41:12,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12" (1/1) ... [2021-11-12 22:41:12,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12" (1/1) ... [2021-11-12 22:41:12,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12" (1/1) ... [2021-11-12 22:41:12,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:41:12,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:41:12,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:41:12,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:41:12,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12" (1/1) ... [2021-11-12 22:41:12,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:12,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:41:12,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:41:12,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:41:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:41:12,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:41:12,368 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:41:12,368 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:41:12,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:41:12 BoogieIcfgContainer [2021-11-12 22:41:12,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:41:12,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:41:12,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:41:12,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:41:12,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:41:11" (1/3) ... [2021-11-12 22:41:12,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c75fca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:41:12, skipping insertion in model container [2021-11-12 22:41:12,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:12" (2/3) ... [2021-11-12 22:41:12,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c75fca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:41:12, skipping insertion in model container [2021-11-12 22:41:12,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:41:12" (3/3) ... [2021-11-12 22:41:12,383 INFO L111 eAbstractionObserver]: Analyzing ICFG ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2021-11-12 22:41:12,390 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:41:12,390 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2021-11-12 22:41:12,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c75fca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:41:12, skipping insertion in model container [2021-11-12 22:41:12,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:41:12,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:41:12,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:41:12,393 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:41:12,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:41:12" (3/3) ... [2021-11-12 22:41:12,397 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 22:41:12,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-12 22:41:12,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-12 22:41:12,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-12 22:41:12,464 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 22:41:12,464 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:41:12,465 INFO L158 Benchmark]: Toolchain (without parser) took 686.38ms. Allocated memory is still 96.5MB. Free memory was 55.7MB in the beginning and 58.8MB in the end (delta: -3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:41:12,466 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory was 72.1MB in the beginning and 72.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:41:12,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.05ms. Allocated memory is still 96.5MB. Free memory was 55.5MB in the beginning and 73.1MB in the end (delta: -17.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-12 22:41:12,467 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.78ms. Allocated memory is still 96.5MB. Free memory was 73.1MB in the beginning and 72.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:41:12,468 INFO L158 Benchmark]: Boogie Preprocessor took 23.10ms. Allocated memory is still 96.5MB. Free memory was 72.0MB in the beginning and 71.0MB in the end (delta: 996.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:41:12,468 INFO L158 Benchmark]: RCFGBuilder took 306.78ms. Allocated memory is still 96.5MB. Free memory was 71.0MB in the beginning and 62.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:41:12,469 INFO L158 Benchmark]: TraceAbstraction took 18.21ms. Allocated memory is still 96.5MB. Free memory was 61.9MB in the beginning and 60.9MB in the end (delta: 968.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:41:12,469 INFO L158 Benchmark]: Witness Printer took 71.40ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 58.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:41:12,472 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory was 72.1MB in the beginning and 72.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.05ms. Allocated memory is still 96.5MB. Free memory was 55.5MB in the beginning and 73.1MB in the end (delta: -17.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.78ms. Allocated memory is still 96.5MB. Free memory was 73.1MB in the beginning and 72.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.10ms. Allocated memory is still 96.5MB. Free memory was 72.0MB in the beginning and 71.0MB in the end (delta: 996.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.78ms. Allocated memory is still 96.5MB. Free memory was 71.0MB in the beginning and 62.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 18.21ms. Allocated memory is still 96.5MB. Free memory was 61.9MB in the beginning and 60.9MB in the end (delta: 968.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 71.40ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 58.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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! [2021-11-12 22:41:12,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8614d8-44b7-4882-8803-3d99fc89d825/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE