./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_63_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E --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 b8a9e12803e863b4433a7218437f259812e6cd66590c42c61a482fb1198e9332 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:39:22,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:39:22,387 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 05:39:22,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:39:22,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:39:22,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:39:22,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:39:22,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:39:22,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:39:22,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:39:22,429 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:39:22,429 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:39:22,430 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:39:22,430 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:39:22,430 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:39:22,430 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:39:22,430 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:39:22,430 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:39:22,430 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:39:22,431 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:39:22,431 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:39:22,431 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:39:22,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:39:22,432 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:39:22,432 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:39:22,432 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:39:22,432 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:39:22,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:39:22,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:39:22,433 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:39:22,433 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:39:22,433 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:39:22,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:39:22,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:39:22,434 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:39:22,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:39:22,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:39:22,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:39:22,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:39:22,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:39:22,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:39:22,435 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:39:22,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:39:22,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:39:22,436 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:39:22,436 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:39:22,436 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E 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 -> b8a9e12803e863b4433a7218437f259812e6cd66590c42c61a482fb1198e9332 [2024-11-14 05:39:22,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:39:22,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:39:22,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:39:22,759 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:39:22,760 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:39:22,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_63_bad.i Unable to find full path for "g++" [2024-11-14 05:39:24,562 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:39:24,968 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:39:24,969 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_63_bad.i [2024-11-14 05:39:24,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/data/d95f50ced/c796cb4e0ce4429bad3dae4db1604b07/FLAG8ede5d455 [2024-11-14 05:39:25,014 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/data/d95f50ced/c796cb4e0ce4429bad3dae4db1604b07 [2024-11-14 05:39:25,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:39:25,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:39:25,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:39:25,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:39:25,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:39:25,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:39:25" (1/1) ... [2024-11-14 05:39:25,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6709112f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:25, skipping insertion in model container [2024-11-14 05:39:25,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:39:25" (1/1) ... [2024-11-14 05:39:25,084 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:39:25,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:39:25,960 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:39:26,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:39:26,209 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:39:26,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26 WrapperNode [2024-11-14 05:39:26,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:39:26,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:39:26,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:39:26,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:39:26,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26" (1/1) ... [2024-11-14 05:39:26,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26" (1/1) ... [2024-11-14 05:39:26,258 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-14 05:39:26,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:39:26,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:39:26,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:39:26,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:39:26,266 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26" (1/1) ... [2024-11-14 05:39:26,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26" (1/1) ... [2024-11-14 05:39:26,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26" (1/1) ... [2024-11-14 05:39:26,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26" (1/1) ... [2024-11-14 05:39:26,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26" (1/1) ... [2024-11-14 05:39:26,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26" (1/1) ... [2024-11-14 05:39:26,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26" (1/1) ... [2024-11-14 05:39:26,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26" (1/1) ... [2024-11-14 05:39:26,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:39:26,282 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:39:26,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:39:26,282 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:39:26,283 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26" (1/1) ... [2024-11-14 05:39:26,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:39:26,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:39:26,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:39:26,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:39:26,367 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 05:39:26,367 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 05:39:26,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:39:26,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:39:26,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:39:26,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:39:26,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:39:26,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:39:26,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:39:26,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:39:26,581 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:39:26,583 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:39:26,737 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-14 05:39:26,737 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:39:26,802 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:39:26,803 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:39:26,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:39:26 BoogieIcfgContainer [2024-11-14 05:39:26,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:39:26,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:39:26,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:39:26,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:39:26,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:39:25" (1/3) ... [2024-11-14 05:39:26,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d148cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:39:26, skipping insertion in model container [2024-11-14 05:39:26,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:26" (2/3) ... [2024-11-14 05:39:26,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d148cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:39:26, skipping insertion in model container [2024-11-14 05:39:26,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:39:26" (3/3) ... [2024-11-14 05:39:26,814 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_63_bad.i [2024-11-14 05:39:26,833 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:39:26,835 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_add_63_bad.i that has 2 procedures, 16 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 05:39:26,899 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:39:26,914 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;@bfe42c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:39:26,914 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 05:39:26,919 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) [2024-11-14 05:39:26,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 05:39:26,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:39:26,926 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:39:26,927 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 05:39:26,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:39:26,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1025860527, now seen corresponding path program 1 times [2024-11-14 05:39:26,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:39:26,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214304502] [2024-11-14 05:39:26,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:39:26,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:39:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:39:27,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:39:27,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:39:27,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214304502] [2024-11-14 05:39:27,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214304502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:39:27,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:39:27,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:39:27,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019859129] [2024-11-14 05:39:27,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:39:27,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:39:27,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:39:27,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:39:27,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:39:27,626 INFO L87 Difference]: Start difference. First 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) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:39:27,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:39:27,692 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2024-11-14 05:39:27,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:39:27,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-11-14 05:39:27,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:39:27,700 INFO L225 Difference]: With dead ends: 16 [2024-11-14 05:39:27,701 INFO L226 Difference]: Without dead ends: 12 [2024-11-14 05:39:27,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:39:27,707 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:39:27,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 22 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:39:27,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-14 05:39:27,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-14 05:39:27,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:39:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2024-11-14 05:39:27,739 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 8 [2024-11-14 05:39:27,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:39:27,740 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-11-14 05:39:27,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:39:27,740 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-11-14 05:39:27,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 05:39:27,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:39:27,741 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:39:27,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:39:27,742 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 05:39:27,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:39:27,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1736905320, now seen corresponding path program 1 times [2024-11-14 05:39:27,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:39:27,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616920766] [2024-11-14 05:39:27,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:39:27,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:39:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:39:27,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:39:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:39:27,830 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:39:27,830 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:39:27,831 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 05:39:27,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 05:39:27,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:39:27,837 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 05:39:27,868 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:39:27,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:39:27 BoogieIcfgContainer [2024-11-14 05:39:27,871 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:39:27,872 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:39:27,872 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:39:27,872 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:39:27,876 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:39:26" (3/4) ... [2024-11-14 05:39:27,878 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:39:27,879 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:39:27,881 INFO L158 Benchmark]: Toolchain (without parser) took 2862.03ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 48.9MB in the end (delta: 66.4MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2024-11-14 05:39:27,882 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:39:27,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1190.60ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 55.4MB in the end (delta: 60.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-14 05:39:27,885 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.12ms. Allocated memory is still 142.6MB. Free memory was 55.4MB in the beginning and 52.9MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:39:27,886 INFO L158 Benchmark]: Boogie Preprocessor took 21.93ms. Allocated memory is still 142.6MB. Free memory was 52.9MB in the beginning and 51.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:39:27,886 INFO L158 Benchmark]: RCFGBuilder took 521.18ms. Allocated memory is still 142.6MB. Free memory was 51.7MB in the beginning and 105.1MB in the end (delta: -53.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-11-14 05:39:27,886 INFO L158 Benchmark]: TraceAbstraction took 1065.69ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 48.9MB in the end (delta: 55.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-14 05:39:27,887 INFO L158 Benchmark]: Witness Printer took 7.62ms. Allocated memory is still 142.6MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:39:27,888 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1190.60ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 55.4MB in the end (delta: 60.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.12ms. Allocated memory is still 142.6MB. Free memory was 55.4MB in the beginning and 52.9MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.93ms. Allocated memory is still 142.6MB. Free memory was 52.9MB in the beginning and 51.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 521.18ms. Allocated memory is still 142.6MB. Free memory was 51.7MB in the beginning and 105.1MB in the end (delta: -53.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1065.69ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 48.9MB in the end (delta: 55.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 7.62ms. Allocated memory is still 142.6MB. Free memory is still 48.9MB. 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: 1578]: 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 CWE190_Integer_Overflow__int_fgets_add_63_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 CWE190_Integer_Overflow__int_fgets_add_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] data + 1 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: 1578]: 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: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 9 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2024-11-14 05:39:27,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E --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 b8a9e12803e863b4433a7218437f259812e6cd66590c42c61a482fb1198e9332 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:39:30,571 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:39:30,663 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-14 05:39:30,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:39:30,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:39:30,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:39:30,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:39:30,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:39:30,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:39:30,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:39:30,735 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:39:30,735 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:39:30,735 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:39:30,735 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:39:30,735 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:39:30,736 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:39:30,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:39:30,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:39:30,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:39:30,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:39:30,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:39:30,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:39:30,737 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:39:30,737 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:39:30,737 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:39:30,737 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:39:30,737 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:39:30,738 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:39:30,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:39:30,738 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:39:30,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:39:30,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:39:30,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:39:30,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:39:30,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:39:30,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:39:30,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:39:30,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:39:30,739 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:39:30,739 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:39:30,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:39:30,739 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:39:30,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E 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 -> b8a9e12803e863b4433a7218437f259812e6cd66590c42c61a482fb1198e9332 [2024-11-14 05:39:31,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:39:31,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:39:31,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:39:31,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:39:31,108 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:39:31,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_63_bad.i Unable to find full path for "g++" [2024-11-14 05:39:33,072 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:39:33,484 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:39:33,484 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_63_bad.i [2024-11-14 05:39:33,543 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/data/9e212747f/6fa1f6635e724c4297c709819334b013/FLAG4d45741f5 [2024-11-14 05:39:33,566 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/data/9e212747f/6fa1f6635e724c4297c709819334b013 [2024-11-14 05:39:33,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:39:33,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:39:33,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:39:33,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:39:33,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:39:33,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:39:33" (1/1) ... [2024-11-14 05:39:33,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ecad60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:33, skipping insertion in model container [2024-11-14 05:39:33,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:39:33" (1/1) ... [2024-11-14 05:39:33,651 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:39:34,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:39:34,875 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:39:35,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:39:35,194 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:39:35,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35 WrapperNode [2024-11-14 05:39:35,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:39:35,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:39:35,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:39:35,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:39:35,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35" (1/1) ... [2024-11-14 05:39:35,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35" (1/1) ... [2024-11-14 05:39:35,263 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-14 05:39:35,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:39:35,267 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:39:35,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:39:35,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:39:35,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35" (1/1) ... [2024-11-14 05:39:35,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35" (1/1) ... [2024-11-14 05:39:35,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35" (1/1) ... [2024-11-14 05:39:35,280 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35" (1/1) ... [2024-11-14 05:39:35,289 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35" (1/1) ... [2024-11-14 05:39:35,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35" (1/1) ... [2024-11-14 05:39:35,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35" (1/1) ... [2024-11-14 05:39:35,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35" (1/1) ... [2024-11-14 05:39:35,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:39:35,299 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:39:35,299 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:39:35,299 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:39:35,300 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35" (1/1) ... [2024-11-14 05:39:35,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:39:35,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:39:35,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:39:35,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:39:35,361 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 05:39:35,362 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 05:39:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:39:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:39:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:39:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:39:35,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:39:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 05:39:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:39:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 05:39:35,556 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:39:35,558 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:39:35,720 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-14 05:39:35,720 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:39:35,733 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:39:35,734 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:39:35,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:39:35 BoogieIcfgContainer [2024-11-14 05:39:35,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:39:35,738 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:39:35,738 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:39:35,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:39:35,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:39:33" (1/3) ... [2024-11-14 05:39:35,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa40f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:39:35, skipping insertion in model container [2024-11-14 05:39:35,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:35" (2/3) ... [2024-11-14 05:39:35,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa40f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:39:35, skipping insertion in model container [2024-11-14 05:39:35,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:39:35" (3/3) ... [2024-11-14 05:39:35,746 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_63_bad.i [2024-11-14 05:39:35,763 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:39:35,764 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_add_63_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 05:39:35,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:39:35,848 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;@4815c30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:39:35,848 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 05:39:35,853 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) [2024-11-14 05:39:35,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:39:35,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:39:35,861 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:39:35,861 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 05:39:35,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:39:35,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-14 05:39:35,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:39:35,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807914110] [2024-11-14 05:39:35,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:39:35,882 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 [2024-11-14 05:39:35,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:39:35,886 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 05:39:35,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 05:39:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:39:36,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:39:36,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:39:36,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:39:36,128 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:39:36,130 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:39:36,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807914110] [2024-11-14 05:39:36,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807914110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:39:36,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:39:36,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:39:36,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267431837] [2024-11-14 05:39:36,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:39:36,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:39:36,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:39:36,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:39:36,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:39:36,164 INFO L87 Difference]: Start difference. First 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) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:39:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:39:36,179 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-11-14 05:39:36,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:39:36,181 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-14 05:39:36,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:39:36,185 INFO L225 Difference]: With dead ends: 24 [2024-11-14 05:39:36,185 INFO L226 Difference]: Without dead ends: 15 [2024-11-14 05:39:36,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:39:36,191 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:39:36,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:39:36,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-14 05:39:36,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-14 05:39:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:39:36,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-11-14 05:39:36,227 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2024-11-14 05:39:36,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:39:36,228 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-11-14 05:39:36,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:39:36,228 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-14 05:39:36,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:39:36,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:39:36,231 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:39:36,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 05:39:36,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 05:39:36,432 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 05:39:36,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:39:36,434 INFO L85 PathProgramCache]: Analyzing trace with hash 924061903, now seen corresponding path program 1 times [2024-11-14 05:39:36,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:39:36,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116157150] [2024-11-14 05:39:36,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:39:36,435 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 [2024-11-14 05:39:36,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:39:36,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 05:39:36,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/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 (3)] Waiting until timeout for monitored process [2024-11-14 05:39:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:39:36,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:39:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:39:36,710 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-14 05:39:36,711 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:39:36,712 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 05:39:36,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 05:39:36,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/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 (3)] Ended with exit code 0 [2024-11-14 05:39:36,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 05:39:36,917 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 05:39:36,937 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:39:36,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:39:36 BoogieIcfgContainer [2024-11-14 05:39:36,940 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:39:36,941 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:39:36,941 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:39:36,941 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:39:36,942 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:39:35" (3/4) ... [2024-11-14 05:39:36,944 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:39:36,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:39:36,946 INFO L158 Benchmark]: Toolchain (without parser) took 3372.81ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 58.3MB in the beginning and 40.8MB in the end (delta: 17.4MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2024-11-14 05:39:36,946 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 52.4MB in the beginning and 52.3MB in the end (delta: 107.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:39:36,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1620.69ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 58.1MB in the beginning and 62.7MB in the end (delta: -4.6MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2024-11-14 05:39:36,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.43ms. Allocated memory is still 100.7MB. Free memory was 62.7MB in the beginning and 59.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:39:36,947 INFO L158 Benchmark]: Boogie Preprocessor took 31.04ms. Allocated memory is still 100.7MB. Free memory was 59.8MB in the beginning and 58.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:39:36,947 INFO L158 Benchmark]: RCFGBuilder took 435.55ms. Allocated memory is still 100.7MB. Free memory was 57.9MB in the beginning and 43.7MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:39:36,948 INFO L158 Benchmark]: TraceAbstraction took 1202.65ms. Allocated memory is still 100.7MB. Free memory was 43.0MB in the beginning and 40.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-14 05:39:36,948 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 100.7MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:39:36,950 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 52.4MB in the beginning and 52.3MB in the end (delta: 107.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1620.69ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 58.1MB in the beginning and 62.7MB in the end (delta: -4.6MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.43ms. Allocated memory is still 100.7MB. Free memory was 62.7MB in the beginning and 59.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.04ms. Allocated memory is still 100.7MB. Free memory was 59.8MB in the beginning and 58.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 435.55ms. Allocated memory is still 100.7MB. Free memory was 57.9MB in the beginning and 43.7MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1202.65ms. Allocated memory is still 100.7MB. Free memory was 43.0MB in the beginning and 40.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 100.7MB. Free memory is still 40.8MB. 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: 1578]: 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 CWE190_Integer_Overflow__int_fgets_add_63_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={4099:0}, 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 CWE190_Integer_Overflow__int_fgets_add_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] data + 1 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: 1578]: 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: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 26 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2024-11-14 05:39:36,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c700ab-bd9a-4341-808d-371df04a1e07/bin/utaipan-verify-sOmjnqqW8E/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