./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:35:45,862 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:35:46,003 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 05:35:46,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:35:46,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:35:46,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:35:46,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:35:46,066 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:35:46,067 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:35:46,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:35:46,070 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:35:46,071 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:35:46,071 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:35:46,072 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:35:46,073 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:35:46,077 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:35:46,078 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:35:46,078 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:35:46,079 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:35:46,079 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:35:46,080 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:35:46,081 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:35:46,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:35:46,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:35:46,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:35:46,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:35:46,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:35:46,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:35:46,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:35:46,087 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:35:46,087 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:35:46,088 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:35:46,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:35:46,090 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:35:46,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:35:46,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:35:46,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:35:46,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:35:46,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:35:46,093 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:35:46,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:35:46,095 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:35:46,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:35:46,096 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:35:46,097 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:35:46,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:35:46,098 INFO L153 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_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b [2024-11-09 05:35:46,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:35:46,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:35:46,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:35:46,633 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:35:46,635 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:35:46,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i Unable to find full path for "g++" [2024-11-09 05:35:49,383 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:35:49,914 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:35:49,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2024-11-09 05:35:49,950 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/data/b6a578ea1/975ef9cc74634720af15a5d07c961be8/FLAG4fabc5431 [2024-11-09 05:35:49,974 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/data/b6a578ea1/975ef9cc74634720af15a5d07c961be8 [2024-11-09 05:35:49,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:35:49,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:35:49,983 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:35:49,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:35:49,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:35:49,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:35:49" (1/1) ... [2024-11-09 05:35:50,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5d9f85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:49, skipping insertion in model container [2024-11-09 05:35:50,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:35:49" (1/1) ... [2024-11-09 05:35:50,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:35:51,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:35:51,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:35:52,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:35:52,297 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:35:52,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52 WrapperNode [2024-11-09 05:35:52,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:35:52,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:35:52,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:35:52,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:35:52,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52" (1/1) ... [2024-11-09 05:35:52,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52" (1/1) ... [2024-11-09 05:35:52,371 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2024-11-09 05:35:52,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:35:52,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:35:52,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:35:52,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:35:52,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52" (1/1) ... [2024-11-09 05:35:52,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52" (1/1) ... [2024-11-09 05:35:52,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52" (1/1) ... [2024-11-09 05:35:52,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52" (1/1) ... [2024-11-09 05:35:52,401 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52" (1/1) ... [2024-11-09 05:35:52,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52" (1/1) ... [2024-11-09 05:35:52,414 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52" (1/1) ... [2024-11-09 05:35:52,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52" (1/1) ... [2024-11-09 05:35:52,424 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:35:52,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:35:52,429 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:35:52,430 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:35:52,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52" (1/1) ... [2024-11-09 05:35:52,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:35:52,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:35:52,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:35:52,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:35:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 05:35:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 05:35:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:35:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:35:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:35:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:35:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:35:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:35:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:35:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:35:52,792 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:35:52,796 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:35:53,014 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-09 05:35:53,014 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:35:53,119 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:35:53,120 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:35:53,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:35:53 BoogieIcfgContainer [2024-11-09 05:35:53,120 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:35:53,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:35:53,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:35:53,129 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:35:53,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:35:49" (1/3) ... [2024-11-09 05:35:53,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0ee402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:35:53, skipping insertion in model container [2024-11-09 05:35:53,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:35:52" (2/3) ... [2024-11-09 05:35:53,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0ee402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:35:53, skipping insertion in model container [2024-11-09 05:35:53,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:35:53" (3/3) ... [2024-11-09 05:35:53,134 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2024-11-09 05:35:53,164 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:35:53,165 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:35:53,276 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:35:53,284 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@688ce21e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:35:53,285 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 05:35:53,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:35:53,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:35:53,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:35:53,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:35:53,302 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:35:53,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:35:53,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1025860527, now seen corresponding path program 1 times [2024-11-09 05:35:53,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:35:53,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751534372] [2024-11-09 05:35:53,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:35:53,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:35:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:35:53,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:35:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:35:53,736 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:35:53,739 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:35:53,741 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 05:35:53,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 05:35:53,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:35:53,753 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 05:35:53,785 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:35:53,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:35:53 BoogieIcfgContainer [2024-11-09 05:35:53,790 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:35:53,792 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:35:53,792 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:35:53,792 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:35:53,793 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:35:53" (3/4) ... [2024-11-09 05:35:53,798 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:35:53,800 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:35:53,802 INFO L158 Benchmark]: Toolchain (without parser) took 3821.06ms. Allocated memory is still 167.8MB. Free memory was 122.2MB in the beginning and 115.9MB in the end (delta: 6.4MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-11-09 05:35:53,803 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 113.2MB. Free memory was 88.8MB in the beginning and 88.7MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:35:53,804 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2315.91ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 98.1MB in the end (delta: 23.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-09 05:35:53,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.26ms. Allocated memory is still 167.8MB. Free memory was 98.1MB in the beginning and 95.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:35:53,806 INFO L158 Benchmark]: Boogie Preprocessor took 51.05ms. Allocated memory is still 167.8MB. Free memory was 95.3MB in the beginning and 93.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:35:53,807 INFO L158 Benchmark]: RCFGBuilder took 693.53ms. Allocated memory is still 167.8MB. Free memory was 93.9MB in the beginning and 77.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 05:35:53,808 INFO L158 Benchmark]: TraceAbstraction took 666.04ms. Allocated memory is still 167.8MB. Free memory was 76.4MB in the beginning and 115.9MB in the end (delta: -39.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:35:53,809 INFO L158 Benchmark]: Witness Printer took 8.56ms. Allocated memory is still 167.8MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:35:53,814 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 113.2MB. Free memory was 88.8MB in the beginning and 88.7MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2315.91ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 98.1MB in the end (delta: 23.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.26ms. Allocated memory is still 167.8MB. Free memory was 98.1MB in the beginning and 95.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.05ms. Allocated memory is still 167.8MB. Free memory was 95.3MB in the beginning and 93.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 693.53ms. Allocated memory is still 167.8MB. Free memory was 93.9MB in the beginning and 77.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 666.04ms. Allocated memory is still 167.8MB. Free memory was 76.4MB in the beginning and 115.9MB in the end (delta: -39.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.56ms. Allocated memory is still 167.8MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={14:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 05:35:53,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:35:57,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:35:57,446 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 05:35:57,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:35:57,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:35:57,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:35:57,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:35:57,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:35:57,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:35:57,514 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:35:57,514 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:35:57,515 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:35:57,515 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:35:57,516 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:35:57,516 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:35:57,517 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:35:57,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:35:57,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:35:57,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:35:57,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:35:57,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:35:57,522 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:35:57,522 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:35:57,523 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:35:57,523 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:35:57,524 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:35:57,524 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:35:57,525 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:35:57,525 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:35:57,526 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:35:57,526 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:35:57,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:35:57,528 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:35:57,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:35:57,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:35:57,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:35:57,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:35:57,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:35:57,532 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:35:57,532 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:35:57,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:35:57,534 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:35:57,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b [2024-11-09 05:35:58,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:35:58,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:35:58,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:35:58,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:35:58,201 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:35:58,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i Unable to find full path for "g++" [2024-11-09 05:36:00,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:36:01,392 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:36:01,393 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2024-11-09 05:36:01,418 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/data/171f74739/52c395aa526b44ed9ea4707af83c9da4/FLAG814d9db1e [2024-11-09 05:36:01,435 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/data/171f74739/52c395aa526b44ed9ea4707af83c9da4 [2024-11-09 05:36:01,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:36:01,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:36:01,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:36:01,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:36:01,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:36:01,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:36:01" (1/1) ... [2024-11-09 05:36:01,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56754dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:01, skipping insertion in model container [2024-11-09 05:36:01,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:36:01" (1/1) ... [2024-11-09 05:36:01,553 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:36:02,860 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:36:02,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:36:02,892 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:36:03,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:36:03,297 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:36:03,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03 WrapperNode [2024-11-09 05:36:03,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:36:03,299 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:36:03,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:36:03,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:36:03,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03" (1/1) ... [2024-11-09 05:36:03,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03" (1/1) ... [2024-11-09 05:36:03,391 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2024-11-09 05:36:03,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:36:03,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:36:03,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:36:03,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:36:03,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03" (1/1) ... [2024-11-09 05:36:03,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03" (1/1) ... [2024-11-09 05:36:03,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03" (1/1) ... [2024-11-09 05:36:03,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03" (1/1) ... [2024-11-09 05:36:03,426 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03" (1/1) ... [2024-11-09 05:36:03,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03" (1/1) ... [2024-11-09 05:36:03,431 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03" (1/1) ... [2024-11-09 05:36:03,433 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03" (1/1) ... [2024-11-09 05:36:03,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:36:03,438 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:36:03,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:36:03,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:36:03,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03" (1/1) ... [2024-11-09 05:36:03,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:36:03,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:36:03,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:36:03,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:36:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 05:36:03,533 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 05:36:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:36:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:36:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:36:03,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:36:03,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:36:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 05:36:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:36:03,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 05:36:03,809 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:36:03,814 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:36:04,094 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-09 05:36:04,095 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:36:04,113 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:36:04,114 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:36:04,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:36:04 BoogieIcfgContainer [2024-11-09 05:36:04,114 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:36:04,118 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:36:04,118 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:36:04,122 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:36:04,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:36:01" (1/3) ... [2024-11-09 05:36:04,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d89ba5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:36:04, skipping insertion in model container [2024-11-09 05:36:04,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:36:03" (2/3) ... [2024-11-09 05:36:04,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d89ba5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:36:04, skipping insertion in model container [2024-11-09 05:36:04,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:36:04" (3/3) ... [2024-11-09 05:36:04,127 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2024-11-09 05:36:04,147 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:36:04,148 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:36:04,243 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:36:04,252 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ebb417c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:36:04,252 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 05:36:04,257 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:36:04,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 05:36:04,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:36:04,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:36:04,268 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:36:04,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:36:04,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-09 05:36:04,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:36:04,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634407948] [2024-11-09 05:36:04,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:36:04,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:36:04,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:36:04,296 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:36:04,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 05:36:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:36:04,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:36:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:36:04,625 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 05:36:04,627 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:36:04,628 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 05:36:04,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 05:36:04,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:36:04,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:36:04,845 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 05:36:04,883 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:36:04,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:36:04 BoogieIcfgContainer [2024-11-09 05:36:04,889 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:36:04,890 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:36:04,890 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:36:04,890 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:36:04,891 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:36:04" (3/4) ... [2024-11-09 05:36:04,895 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:36:04,896 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:36:04,898 INFO L158 Benchmark]: Toolchain (without parser) took 3455.27ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 48.0MB in the beginning and 42.5MB in the end (delta: 5.4MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2024-11-09 05:36:04,899 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:36:04,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1854.78ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 47.8MB in the beginning and 61.6MB in the end (delta: -13.8MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2024-11-09 05:36:04,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.17ms. Allocated memory is still 92.3MB. Free memory was 61.6MB in the beginning and 58.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:36:04,906 INFO L158 Benchmark]: Boogie Preprocessor took 44.51ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 56.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:36:04,907 INFO L158 Benchmark]: RCFGBuilder took 676.18ms. Allocated memory is still 92.3MB. Free memory was 56.1MB in the beginning and 40.2MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 05:36:04,907 INFO L158 Benchmark]: TraceAbstraction took 771.17ms. Allocated memory is still 92.3MB. Free memory was 39.7MB in the beginning and 42.5MB in the end (delta: -2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:36:04,909 INFO L158 Benchmark]: Witness Printer took 6.29ms. Allocated memory is still 92.3MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:36:04,915 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1854.78ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 47.8MB in the beginning and 61.6MB in the end (delta: -13.8MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.17ms. Allocated memory is still 92.3MB. Free memory was 61.6MB in the beginning and 58.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.51ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 56.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 676.18ms. Allocated memory is still 92.3MB. Free memory was 56.1MB in the beginning and 40.2MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 771.17ms. Allocated memory is still 92.3MB. Free memory was 39.7MB in the beginning and 42.5MB in the end (delta: -2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.29ms. Allocated memory is still 92.3MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 05:36:04,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a766dd83-eae7-4c3e-94dc-c1bdbfa2420c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample