./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_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_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/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_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/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_29c8bdb7-8976-432a-a443-deadb118722a/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 f34413006439766a3957dd65c07b6ee4aec896235e77741a9a672041c503d263 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:10:05,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:10:05,355 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 07:10:05,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:10:05,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:10:05,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:10:05,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:10:05,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:10:05,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:10:05,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:10:05,408 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:10:05,409 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:10:05,410 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:10:05,415 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:10:05,415 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:10:05,416 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:10:05,416 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:10:05,416 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:10:05,417 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:10:05,417 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:10:05,417 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:10:05,418 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:10:05,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:10:05,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:10:05,420 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:10:05,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:10:05,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:10:05,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:10:05,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:10:05,421 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:10:05,422 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:10:05,422 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:10:05,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:10:05,423 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:10:05,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:10:05,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:10:05,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:10:05,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:10:05,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:10:05,425 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:10:05,425 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:10:05,427 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:10:05,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:10:05,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:10:05,428 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:10:05,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:10:05,429 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_29c8bdb7-8976-432a-a443-deadb118722a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f34413006439766a3957dd65c07b6ee4aec896235e77741a9a672041c503d263 [2024-11-09 07:10:05,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:10:05,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:10:05,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:10:05,719 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:10:05,721 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:10:05,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i Unable to find full path for "g++" [2024-11-09 07:10:07,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:10:08,099 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:10:08,100 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i [2024-11-09 07:10:08,126 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/data/18baa2c83/d3fe47b510d34afbb7176368d1b3d426/FLAG82e51e484 [2024-11-09 07:10:08,145 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/data/18baa2c83/d3fe47b510d34afbb7176368d1b3d426 [2024-11-09 07:10:08,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:10:08,150 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:10:08,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:10:08,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:10:08,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:10:08,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:10:08" (1/1) ... [2024-11-09 07:10:08,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a1ab72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:08, skipping insertion in model container [2024-11-09 07:10:08,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:10:08" (1/1) ... [2024-11-09 07:10:08,254 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:10:09,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:10:09,282 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:10:09,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:10:09,590 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:10:09,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09 WrapperNode [2024-11-09 07:10:09,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:10:09,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:10:09,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:10:09,594 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:10:09,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09" (1/1) ... [2024-11-09 07:10:09,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09" (1/1) ... [2024-11-09 07:10:09,646 INFO L138 Inliner]: procedures = 502, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 75 [2024-11-09 07:10:09,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:10:09,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:10:09,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:10:09,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:10:09,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09" (1/1) ... [2024-11-09 07:10:09,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09" (1/1) ... [2024-11-09 07:10:09,661 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09" (1/1) ... [2024-11-09 07:10:09,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09" (1/1) ... [2024-11-09 07:10:09,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09" (1/1) ... [2024-11-09 07:10:09,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09" (1/1) ... [2024-11-09 07:10:09,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09" (1/1) ... [2024-11-09 07:10:09,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09" (1/1) ... [2024-11-09 07:10:09,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:10:09,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:10:09,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:10:09,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:10:09,684 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09" (1/1) ... [2024-11-09 07:10:09,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:10:09,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:10:09,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:10:09,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:10:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 07:10:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 07:10:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:10:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:10:09,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:10:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:10:09,923 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:10:09,925 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:10:10,062 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-09 07:10:10,062 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:10:10,129 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:10:10,130 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:10:10,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:10:10 BoogieIcfgContainer [2024-11-09 07:10:10,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:10:10,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:10:10,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:10:10,136 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:10:10,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:10:08" (1/3) ... [2024-11-09 07:10:10,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d69aba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:10:10, skipping insertion in model container [2024-11-09 07:10:10,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:09" (2/3) ... [2024-11-09 07:10:10,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d69aba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:10:10, skipping insertion in model container [2024-11-09 07:10:10,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:10:10" (3/3) ... [2024-11-09 07:10:10,139 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i [2024-11-09 07:10:10,157 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:10:10,157 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:10:10,214 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:10,221 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;@778fb593, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:10,221 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 07:10:10,226 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 07:10:10,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 07:10:10,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:10:10,233 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:10,234 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 07:10:10,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:10,238 INFO L85 PathProgramCache]: Analyzing trace with hash -108921076, now seen corresponding path program 1 times [2024-11-09 07:10:10,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:10:10,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575529508] [2024-11-09 07:10:10,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:10,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:10,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:10,452 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 07:10:10,454 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:10,456 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 07:10:10,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 07:10:10,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:10:10,464 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 07:10:10,493 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:10:10,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:10:10 BoogieIcfgContainer [2024-11-09 07:10:10,496 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:10:10,499 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:10:10,499 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:10:10,499 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:10:10,500 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:10:10" (3/4) ... [2024-11-09 07:10:10,502 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:10:10,503 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:10:10,504 INFO L158 Benchmark]: Toolchain (without parser) took 2354.27ms. Allocated memory is still 201.3MB. Free memory was 153.2MB in the beginning and 124.0MB in the end (delta: 29.2MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2024-11-09 07:10:10,505 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:10:10,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1439.17ms. Allocated memory is still 201.3MB. Free memory was 153.2MB in the beginning and 164.9MB in the end (delta: -11.7MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. [2024-11-09 07:10:10,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.78ms. Allocated memory is still 201.3MB. Free memory was 164.9MB in the beginning and 161.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:10:10,508 INFO L158 Benchmark]: Boogie Preprocessor took 34.69ms. Allocated memory is still 201.3MB. Free memory was 161.7MB in the beginning and 160.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:10:10,509 INFO L158 Benchmark]: RCFGBuilder took 447.36ms. Allocated memory is still 201.3MB. Free memory was 160.7MB in the beginning and 143.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 07:10:10,510 INFO L158 Benchmark]: TraceAbstraction took 363.96ms. Allocated memory is still 201.3MB. Free memory was 142.9MB in the beginning and 124.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 07:10:10,510 INFO L158 Benchmark]: Witness Printer took 4.88ms. Allocated memory is still 201.3MB. Free memory was 124.0MB in the beginning and 124.0MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:10:10,514 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1439.17ms. Allocated memory is still 201.3MB. Free memory was 153.2MB in the beginning and 164.9MB in the end (delta: -11.7MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.78ms. Allocated memory is still 201.3MB. Free memory was 164.9MB in the beginning and 161.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.69ms. Allocated memory is still 201.3MB. Free memory was 161.7MB in the beginning and 160.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.36ms. Allocated memory is still 201.3MB. Free memory was 160.7MB in the beginning and 143.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 363.96ms. Allocated memory is still 201.3MB. Free memory was 142.9MB in the beginning and 124.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.88ms. Allocated memory is still 201.3MB. Free memory was 124.0MB in the beginning and 124.0MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. 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: 1592]: 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_54_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=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_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_postdec_54e_badSink(data) [L1592] 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: 1592]: 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: 0.3s, 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, 0.0s 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 07:10:10,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/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_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/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_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/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_29c8bdb7-8976-432a-a443-deadb118722a/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 f34413006439766a3957dd65c07b6ee4aec896235e77741a9a672041c503d263 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:10:13,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:10:13,149 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 07:10:13,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:10:13,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:10:13,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:10:13,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:10:13,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:10:13,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:10:13,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:10:13,220 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:10:13,221 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:10:13,222 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:10:13,226 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:10:13,226 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:10:13,227 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:10:13,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:10:13,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:10:13,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:10:13,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:10:13,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:10:13,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:10:13,231 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:10:13,231 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:10:13,231 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:10:13,231 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:10:13,232 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:10:13,232 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:10:13,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:10:13,233 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:10:13,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:10:13,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:10:13,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:10:13,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:10:13,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:10:13,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:10:13,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:10:13,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:10:13,236 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:10:13,236 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:10:13,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:10:13,237 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:10:13,237 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_29c8bdb7-8976-432a-a443-deadb118722a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f34413006439766a3957dd65c07b6ee4aec896235e77741a9a672041c503d263 [2024-11-09 07:10:13,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:10:13,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:10:13,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:10:13,670 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:10:13,671 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:10:13,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i Unable to find full path for "g++" [2024-11-09 07:10:15,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:10:16,259 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:10:16,260 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i [2024-11-09 07:10:16,290 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/data/abffab512/4e94eaffb1074d37bac548c9f119ef37/FLAGee9c66f48 [2024-11-09 07:10:16,432 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/data/abffab512/4e94eaffb1074d37bac548c9f119ef37 [2024-11-09 07:10:16,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:10:16,436 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:10:16,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:10:16,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:10:16,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:10:16,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:10:16" (1/1) ... [2024-11-09 07:10:16,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d8fd47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:16, skipping insertion in model container [2024-11-09 07:10:16,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:10:16" (1/1) ... [2024-11-09 07:10:16,523 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:10:17,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:10:17,582 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:10:17,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:10:17,935 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:10:17,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17 WrapperNode [2024-11-09 07:10:17,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:10:17,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:10:17,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:10:17,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:10:17,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17" (1/1) ... [2024-11-09 07:10:17,986 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17" (1/1) ... [2024-11-09 07:10:18,026 INFO L138 Inliner]: procedures = 507, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 74 [2024-11-09 07:10:18,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:10:18,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:10:18,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:10:18,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:10:18,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17" (1/1) ... [2024-11-09 07:10:18,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17" (1/1) ... [2024-11-09 07:10:18,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17" (1/1) ... [2024-11-09 07:10:18,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17" (1/1) ... [2024-11-09 07:10:18,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17" (1/1) ... [2024-11-09 07:10:18,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17" (1/1) ... [2024-11-09 07:10:18,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17" (1/1) ... [2024-11-09 07:10:18,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17" (1/1) ... [2024-11-09 07:10:18,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:10:18,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:10:18,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:10:18,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:10:18,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17" (1/1) ... [2024-11-09 07:10:18,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:10:18,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:10:18,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:10:18,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:10:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 07:10:18,138 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 07:10:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:10:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:10:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:10:18,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:10:18,320 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:10:18,322 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:10:18,531 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-09 07:10:18,531 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:10:18,544 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:10:18,545 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:10:18,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:10:18 BoogieIcfgContainer [2024-11-09 07:10:18,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:10:18,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:10:18,548 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:10:18,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:10:18,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:10:16" (1/3) ... [2024-11-09 07:10:18,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9f447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:10:18, skipping insertion in model container [2024-11-09 07:10:18,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:17" (2/3) ... [2024-11-09 07:10:18,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9f447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:10:18, skipping insertion in model container [2024-11-09 07:10:18,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:10:18" (3/3) ... [2024-11-09 07:10:18,558 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i [2024-11-09 07:10:18,571 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:10:18,572 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:10:18,626 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:18,633 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;@60689d95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:18,633 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 07:10:18,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 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 07:10:18,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 07:10:18,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:10:18,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:18,647 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 07:10:18,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:18,655 INFO L85 PathProgramCache]: Analyzing trace with hash -833969292, now seen corresponding path program 1 times [2024-11-09 07:10:18,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:10:18,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297409584] [2024-11-09 07:10:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:18,674 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 07:10:18,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:10:18,676 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/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 07:10:18,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/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 07:10:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:18,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:18,966 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 07:10:18,968 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:18,969 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 07:10:18,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 07:10:18,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/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)] Ended with exit code 0 [2024-11-09 07:10:19,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/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 07:10:19,177 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 07:10:19,198 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:10:19,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:10:19 BoogieIcfgContainer [2024-11-09 07:10:19,201 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:10:19,202 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:10:19,202 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:10:19,202 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:10:19,203 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:10:18" (3/4) ... [2024-11-09 07:10:19,207 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:10:19,209 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:10:19,210 INFO L158 Benchmark]: Toolchain (without parser) took 2774.18ms. Allocated memory was 62.9MB in the beginning and 111.1MB in the end (delta: 48.2MB). Free memory was 31.3MB in the beginning and 75.1MB in the end (delta: -43.8MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-11-09 07:10:19,212 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 62.9MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:10:19,213 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1499.22ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 30.9MB in the beginning and 46.8MB in the end (delta: -15.9MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-11-09 07:10:19,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.07ms. Allocated memory is still 90.2MB. Free memory was 46.8MB in the beginning and 43.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:10:19,216 INFO L158 Benchmark]: Boogie Preprocessor took 48.42ms. Allocated memory is still 90.2MB. Free memory was 43.4MB in the beginning and 41.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:10:19,219 INFO L158 Benchmark]: RCFGBuilder took 469.51ms. Allocated memory is still 90.2MB. Free memory was 41.4MB in the beginning and 50.4MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 07:10:19,219 INFO L158 Benchmark]: TraceAbstraction took 653.38ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 50.0MB in the beginning and 75.7MB in the end (delta: -25.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:10:19,220 INFO L158 Benchmark]: Witness Printer took 7.02ms. Allocated memory is still 111.1MB. Free memory was 75.7MB in the beginning and 75.1MB in the end (delta: 614.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:10:19,223 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 62.9MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1499.22ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 30.9MB in the beginning and 46.8MB in the end (delta: -15.9MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.07ms. Allocated memory is still 90.2MB. Free memory was 46.8MB in the beginning and 43.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.42ms. Allocated memory is still 90.2MB. Free memory was 43.4MB in the beginning and 41.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.51ms. Allocated memory is still 90.2MB. Free memory was 41.4MB in the beginning and 50.4MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 653.38ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 50.0MB in the beginning and 75.7MB in the end (delta: -25.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.02ms. Allocated memory is still 111.1MB. Free memory was 75.7MB in the beginning and 75.1MB in the end (delta: 614.0kB). 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: 1592]: 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_54_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=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_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_postdec_54e_badSink(data) [L1592] 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: 1592]: 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, 27 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=27occurred 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 07:10:19,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29c8bdb7-8976-432a-a443-deadb118722a/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