./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_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_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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 b5b0306ceebc7138ed940cef6b6848d6eb995b72db2fae2138badb859ab7a0a1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:48:47,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:48:47,976 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 04:48:47,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:48:47,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:48:48,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:48:48,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:48:48,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:48:48,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:48:48,062 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:48:48,062 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:48:48,063 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:48:48,064 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:48:48,064 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:48:48,064 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:48:48,065 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:48:48,065 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:48:48,065 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:48:48,065 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:48:48,065 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:48:48,065 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:48:48,065 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:48:48,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:48:48,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:48:48,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:48:48,067 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:48:48,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:48:48,068 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:48:48,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:48:48,069 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:48:48,069 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:48:48,069 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:48:48,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:48:48,070 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:48:48,071 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:48:48,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:48:48,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:48:48,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:48:48,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:48:48,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:48:48,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:48:48,073 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:48:48,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:48:48,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:48:48,074 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:48:48,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:48:48,074 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_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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 -> b5b0306ceebc7138ed940cef6b6848d6eb995b72db2fae2138badb859ab7a0a1 [2024-11-14 04:48:48,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:48:48,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:48:48,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:48:48,580 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:48:48,581 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:48:48,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i Unable to find full path for "g++" [2024-11-14 04:48:51,481 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:48:52,325 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:48:52,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2024-11-14 04:48:52,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/data/5b9dc60d3/c26ef1d8c1774554af4b2d00d00dcf3d/FLAG840d81365 [2024-11-14 04:48:52,388 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/data/5b9dc60d3/c26ef1d8c1774554af4b2d00d00dcf3d [2024-11-14 04:48:52,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:48:52,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:48:52,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:48:52,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:48:52,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:48:52,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:48:52" (1/1) ... [2024-11-14 04:48:52,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb8d3fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:52, skipping insertion in model container [2024-11-14 04:48:52,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:48:52" (1/1) ... [2024-11-14 04:48:52,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:48:54,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:48:54,032 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:48:54,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:48:54,354 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:48:54,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54 WrapperNode [2024-11-14 04:48:54,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:48:54,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:48:54,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:48:54,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:48:54,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54" (1/1) ... [2024-11-14 04:48:54,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54" (1/1) ... [2024-11-14 04:48:54,428 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 71 [2024-11-14 04:48:54,429 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:48:54,430 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:48:54,430 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:48:54,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:48:54,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54" (1/1) ... [2024-11-14 04:48:54,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54" (1/1) ... [2024-11-14 04:48:54,448 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54" (1/1) ... [2024-11-14 04:48:54,448 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54" (1/1) ... [2024-11-14 04:48:54,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54" (1/1) ... [2024-11-14 04:48:54,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54" (1/1) ... [2024-11-14 04:48:54,461 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54" (1/1) ... [2024-11-14 04:48:54,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54" (1/1) ... [2024-11-14 04:48:54,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:48:54,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:48:54,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:48:54,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:48:54,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54" (1/1) ... [2024-11-14 04:48:54,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:48:54,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:48:54,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:48:54,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:48:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 04:48:54,565 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 04:48:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:48:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:48:54,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:48:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:48:54,785 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:48:54,788 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:48:55,036 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-14 04:48:55,036 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:48:55,127 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:48:55,127 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:48:55,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:48:55 BoogieIcfgContainer [2024-11-14 04:48:55,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:48:55,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:48:55,134 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:48:55,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:48:55,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:48:52" (1/3) ... [2024-11-14 04:48:55,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546357b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:48:55, skipping insertion in model container [2024-11-14 04:48:55,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:48:54" (2/3) ... [2024-11-14 04:48:55,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546357b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:48:55, skipping insertion in model container [2024-11-14 04:48:55,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:48:55" (3/3) ... [2024-11-14 04:48:55,147 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2024-11-14 04:48:55,175 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:48:55,178 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i that has 2 procedures, 18 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 04:48:55,292 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:48:55,320 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;@48be33b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:48:55,320 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 04:48:55,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 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 04:48:55,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 04:48:55,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:48:55,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:48:55,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 04:48:55,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:48:55,349 INFO L85 PathProgramCache]: Analyzing trace with hash 131819525, now seen corresponding path program 1 times [2024-11-14 04:48:55,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:48:55,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201150732] [2024-11-14 04:48:55,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:48:55,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:48:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:48:55,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:48:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:48:55,679 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:48:55,681 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:48:55,683 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 04:48:55,686 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 04:48:55,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:48:55,693 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:48:55,723 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:48:55,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:48:55 BoogieIcfgContainer [2024-11-14 04:48:55,733 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:48:55,734 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:48:55,734 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:48:55,734 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:48:55,736 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:48:55" (3/4) ... [2024-11-14 04:48:55,740 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:48:55,741 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:48:55,742 INFO L158 Benchmark]: Toolchain (without parser) took 3345.57ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 80.1MB in the end (delta: 26.3MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2024-11-14 04:48:55,743 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 167.8MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:48:55,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1956.19ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 46.2MB in the end (delta: 59.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-14 04:48:55,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.12ms. Allocated memory is still 142.6MB. Free memory was 46.2MB in the beginning and 43.5MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:48:55,745 INFO L158 Benchmark]: Boogie Preprocessor took 36.21ms. Allocated memory is still 142.6MB. Free memory was 43.5MB in the beginning and 42.5MB in the end (delta: 985.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:48:55,746 INFO L158 Benchmark]: RCFGBuilder took 661.22ms. Allocated memory is still 142.6MB. Free memory was 42.5MB in the beginning and 97.6MB in the end (delta: -55.1MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2024-11-14 04:48:55,749 INFO L158 Benchmark]: TraceAbstraction took 599.57ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 80.1MB in the end (delta: 17.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:48:55,750 INFO L158 Benchmark]: Witness Printer took 7.24ms. Allocated memory is still 142.6MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:48:55,758 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 167.8MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1956.19ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 46.2MB in the end (delta: 59.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.12ms. Allocated memory is still 142.6MB. Free memory was 46.2MB in the beginning and 43.5MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.21ms. Allocated memory is still 142.6MB. Free memory was 43.5MB in the beginning and 42.5MB in the end (delta: 985.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 661.22ms. Allocated memory is still 142.6MB. Free memory was 42.5MB in the beginning and 97.6MB in the end (delta: -55.1MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * TraceAbstraction took 599.57ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 80.1MB in the end (delta: 17.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 7.24ms. Allocated memory is still 142.6MB. Free memory is still 80.1MB. 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: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. 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); [L1548] static int CWE191_Integer_Underflow__int_fgets_multiply_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData; [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE191_Integer_Underflow__int_fgets_multiply_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_multiply_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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: 1556]: 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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=18occurred 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, 9 NumberOfCodeBlocks, 9 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 [2024-11-14 04:48:55,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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 b5b0306ceebc7138ed940cef6b6848d6eb995b72db2fae2138badb859ab7a0a1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:48:59,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:48:59,700 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-14 04:48:59,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:48:59,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:48:59,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:48:59,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:48:59,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:48:59,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:48:59,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:48:59,773 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:48:59,774 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:48:59,774 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:48:59,774 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:48:59,775 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:48:59,775 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:48:59,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:48:59,776 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:48:59,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:48:59,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:48:59,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:48:59,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:48:59,776 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:48:59,776 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:48:59,776 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:48:59,776 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:48:59,777 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:48:59,777 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:48:59,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:48:59,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:48:59,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:48:59,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:48:59,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:48:59,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:48:59,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:48:59,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:48:59,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:48:59,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:48:59,780 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:48:59,780 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:48:59,780 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:48:59,780 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:48:59,780 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_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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 -> b5b0306ceebc7138ed940cef6b6848d6eb995b72db2fae2138badb859ab7a0a1 [2024-11-14 04:49:00,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:49:00,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:49:00,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:49:00,254 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:49:00,254 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:49:00,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i Unable to find full path for "g++" [2024-11-14 04:49:03,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:49:03,805 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:49:03,806 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2024-11-14 04:49:03,865 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/data/b0b1dee92/c0a5f7fb12b54f1e8776082604e42ae8/FLAG51561de8c [2024-11-14 04:49:04,338 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/data/b0b1dee92/c0a5f7fb12b54f1e8776082604e42ae8 [2024-11-14 04:49:04,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:49:04,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:49:04,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:49:04,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:49:04,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:49:04,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:49:04" (1/1) ... [2024-11-14 04:49:04,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19dda8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:04, skipping insertion in model container [2024-11-14 04:49:04,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:49:04" (1/1) ... [2024-11-14 04:49:04,452 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:49:05,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:49:05,950 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:49:06,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:49:06,433 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:49:06,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06 WrapperNode [2024-11-14 04:49:06,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:49:06,435 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:49:06,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:49:06,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:49:06,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2024-11-14 04:49:06,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2024-11-14 04:49:06,516 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-11-14 04:49:06,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:49:06,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:49:06,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:49:06,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:49:06,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2024-11-14 04:49:06,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2024-11-14 04:49:06,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2024-11-14 04:49:06,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2024-11-14 04:49:06,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2024-11-14 04:49:06,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2024-11-14 04:49:06,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2024-11-14 04:49:06,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2024-11-14 04:49:06,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:49:06,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:49:06,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:49:06,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:49:06,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2024-11-14 04:49:06,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:49:06,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:49:06,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:49:06,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:49:06,689 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 04:49:06,689 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 04:49:06,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:49:06,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:49:06,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:49:06,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:49:06,991 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:49:06,994 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:49:07,280 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-14 04:49:07,280 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:49:07,296 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:49:07,296 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:49:07,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:49:07 BoogieIcfgContainer [2024-11-14 04:49:07,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:49:07,304 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:49:07,304 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:49:07,313 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:49:07,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:49:04" (1/3) ... [2024-11-14 04:49:07,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a9eedc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:49:07, skipping insertion in model container [2024-11-14 04:49:07,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (2/3) ... [2024-11-14 04:49:07,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a9eedc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:49:07, skipping insertion in model container [2024-11-14 04:49:07,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:49:07" (3/3) ... [2024-11-14 04:49:07,320 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2024-11-14 04:49:07,346 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:49:07,349 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i that has 2 procedures, 25 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 04:49:07,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:49:07,483 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;@109b3ee6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:49:07,483 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 04:49:07,491 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 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 04:49:07,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 04:49:07,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:49:07,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:49:07,506 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 04:49:07,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:49:07,515 INFO L85 PathProgramCache]: Analyzing trace with hash 84640165, now seen corresponding path program 1 times [2024-11-14 04:49:07,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:49:07,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020669501] [2024-11-14 04:49:07,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:49:07,534 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 04:49:07,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:49:07,538 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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 04:49:07,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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 04:49:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:49:07,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:49:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:49:07,922 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-14 04:49:07,926 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:49:07,928 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 04:49:07,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 04:49:07,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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)] Forceful destruction successful, exit code 0 [2024-11-14 04:49:08,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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 04:49:08,137 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:49:08,166 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:49:08,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:49:08 BoogieIcfgContainer [2024-11-14 04:49:08,171 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:49:08,172 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:49:08,172 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:49:08,172 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:49:08,173 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:49:07" (3/4) ... [2024-11-14 04:49:08,177 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:49:08,178 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:49:08,179 INFO L158 Benchmark]: Toolchain (without parser) took 3835.92ms. Allocated memory is still 83.9MB. Free memory was 57.0MB in the beginning and 36.9MB in the end (delta: 20.1MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-11-14 04:49:08,179 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 83.9MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:49:08,180 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2088.88ms. Allocated memory is still 83.9MB. Free memory was 57.0MB in the beginning and 50.0MB in the end (delta: 7.0MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2024-11-14 04:49:08,180 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.83ms. Allocated memory is still 83.9MB. Free memory was 50.0MB in the beginning and 47.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:49:08,181 INFO L158 Benchmark]: Boogie Preprocessor took 57.80ms. Allocated memory is still 83.9MB. Free memory was 47.3MB in the beginning and 45.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:49:08,181 INFO L158 Benchmark]: RCFGBuilder took 721.48ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 31.8MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:49:08,182 INFO L158 Benchmark]: TraceAbstraction took 867.61ms. Allocated memory is still 83.9MB. Free memory was 31.5MB in the beginning and 37.3MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:49:08,182 INFO L158 Benchmark]: Witness Printer took 5.65ms. Allocated memory is still 83.9MB. Free memory was 37.3MB in the beginning and 36.9MB in the end (delta: 416.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:49:08,185 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 83.9MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2088.88ms. Allocated memory is still 83.9MB. Free memory was 57.0MB in the beginning and 50.0MB in the end (delta: 7.0MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.83ms. Allocated memory is still 83.9MB. Free memory was 50.0MB in the beginning and 47.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.80ms. Allocated memory is still 83.9MB. Free memory was 47.3MB in the beginning and 45.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 721.48ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 31.8MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 867.61ms. Allocated memory is still 83.9MB. Free memory was 31.5MB in the beginning and 37.3MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.65ms. Allocated memory is still 83.9MB. Free memory was 37.3MB in the beginning and 36.9MB in the end (delta: 416.9kB). 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: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. 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); [L1548] static int CWE191_Integer_Underflow__int_fgets_multiply_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE191_Integer_Underflow__int_fgets_multiply_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_multiply_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-2143289344, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2143289344, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-2143289344, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2143289344, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-2143289344, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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: 1556]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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=25occurred 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, 12 NumberOfCodeBlocks, 12 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 [2024-11-14 04:49:08,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a5ce5cb-5b02-4f8c-b877-cddc81349af8/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