./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_04_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_04_bad.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', '7a58e28b5c22b6da6a2d7a400744ff8c761f23ff9e97d9aaed3d255e504e297d'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_04_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7a58e28b5c22b6da6a2d7a400744ff8c761f23ff9e97d9aaed3d255e504e297d --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 22:40:42,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 22:40:42,139 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-07 22:40:42,144 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 22:40:42,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 22:40:42,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 22:40:42,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 22:40:42,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 22:40:42,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 22:40:42,159 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 22:40:42,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 22:40:42,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 22:40:42,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 22:40:42,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 22:40:42,160 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 22:40:42,160 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 22:40:42,160 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 22:40:42,160 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 22:40:42,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 22:40:42,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 22:40:42,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 22:40:42,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 22:40:42,161 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 22:40:42,161 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 22:40:42,161 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 22:40:42,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 22:40:42,161 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 22:40:42,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 22:40:42,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 22:40:42,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 22:40:42,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 22:40:42,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 22:40:42,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 22:40:42,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 22:40:42,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 22:40:42,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 22:40:42,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 22:40:42,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 22:40:42,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 22:40:42,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 22:40:42,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 22:40:42,163 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 7a58e28b5c22b6da6a2d7a400744ff8c761f23ff9e97d9aaed3d255e504e297d [2024-11-07 22:40:42,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 22:40:42,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 22:40:42,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 22:40:42,462 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 22:40:42,463 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 22:40:42,465 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_04_bad.i [2024-11-07 22:40:43,722 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 22:40:44,089 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 22:40:44,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_04_bad.i [2024-11-07 22:40:44,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d921881c/ef18e76be266423296deb242a0c6221e/FLAG18bc62f9f [2024-11-07 22:40:44,140 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0d921881c/ef18e76be266423296deb242a0c6221e [2024-11-07 22:40:44,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 22:40:44,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 22:40:44,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 22:40:44,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 22:40:44,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 22:40:44,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:44,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4beae00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44, skipping insertion in model container [2024-11-07 22:40:44,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:44,198 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 22:40:44,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 22:40:44,730 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 22:40:44,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 22:40:44,956 INFO L204 MainTranslator]: Completed translation [2024-11-07 22:40:44,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44 WrapperNode [2024-11-07 22:40:44,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 22:40:44,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 22:40:44,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 22:40:44,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 22:40:44,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:44,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:45,006 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-07 22:40:45,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 22:40:45,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 22:40:45,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 22:40:45,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 22:40:45,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:45,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:45,018 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:45,039 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-07 22:40:45,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:45,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:45,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:45,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:45,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:45,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:45,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 22:40:45,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 22:40:45,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 22:40:45,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 22:40:45,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (1/1) ... [2024-11-07 22:40:45,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 22:40:45,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 22:40:45,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 22:40:45,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 22:40:45,123 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-07 22:40:45,123 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-07 22:40:45,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 22:40:45,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 22:40:45,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 22:40:45,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 22:40:45,271 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 22:40:45,273 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 22:40:45,404 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-07 22:40:45,405 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 22:40:45,411 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 22:40:45,411 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 22:40:45,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:40:45 BoogieIcfgContainer [2024-11-07 22:40:45,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 22:40:45,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 22:40:45,413 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 22:40:45,417 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 22:40:45,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:40:44" (1/3) ... [2024-11-07 22:40:45,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29205de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:40:45, skipping insertion in model container [2024-11-07 22:40:45,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:44" (2/3) ... [2024-11-07 22:40:45,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29205de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:40:45, skipping insertion in model container [2024-11-07 22:40:45,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:40:45" (3/3) ... [2024-11-07 22:40:45,435 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_04_bad.i [2024-11-07 22:40:45,448 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 22:40:45,448 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 22:40:45,502 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 22:40:45,513 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=PETRI_NET, 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;@6a7b141a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 22:40:45,513 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 22:40:45,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 22:40:45,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 22:40:45,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 22:40:45,522 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 22:40:45,523 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 22:40:45,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 22:40:45,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1958583963, now seen corresponding path program 1 times [2024-11-07 22:40:45,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 22:40:45,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136122860] [2024-11-07 22:40:45,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 22:40:45,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 22:40:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 22:40:45,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 22:40:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 22:40:45,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 22:40:45,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 22:40:45,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136122860] [2024-11-07 22:40:45,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136122860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 22:40:45,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 22:40:45,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 22:40:45,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050675365] [2024-11-07 22:40:45,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 22:40:45,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 22:40:45,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 22:40:45,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 22:40:45,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 22:40:45,780 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2024-11-07 22:40:45,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 22:40:45,812 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2024-11-07 22:40:45,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 22:40:45,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 [2024-11-07 22:40:45,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 22:40:45,820 INFO L225 Difference]: With dead ends: 41 [2024-11-07 22:40:45,820 INFO L226 Difference]: Without dead ends: 18 [2024-11-07 22:40:45,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 22:40:45,826 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 22:40:45,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 26 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 22:40:45,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-07 22:40:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-07 22:40:45,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 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) [2024-11-07 22:40:45,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-11-07 22:40:45,861 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2024-11-07 22:40:45,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 22:40:45,863 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-11-07 22:40:45,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2024-11-07 22:40:45,863 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-07 22:40:45,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-07 22:40:45,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 22:40:45,867 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 22:40:45,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 22:40:45,867 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 22:40:45,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 22:40:45,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1014034784, now seen corresponding path program 1 times [2024-11-07 22:40:45,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 22:40:45,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834360301] [2024-11-07 22:40:45,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 22:40:45,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 22:40:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 22:40:45,915 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 22:40:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 22:40:45,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 22:40:45,956 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 22:40:45,957 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-07 22:40:45,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-07 22:40:45,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 22:40:45,963 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-07 22:40:45,993 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 22:40:45,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:40:45 BoogieIcfgContainer [2024-11-07 22:40:45,998 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 22:40:45,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 22:40:45,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 22:40:45,999 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 22:40:46,000 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:40:45" (3/4) ... [2024-11-07 22:40:46,002 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 22:40:46,003 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 22:40:46,004 INFO L158 Benchmark]: Toolchain (without parser) took 1859.45ms. Allocated memory is still 100.7MB. Free memory was 73.9MB in the beginning and 41.8MB in the end (delta: 32.1MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2024-11-07 22:40:46,005 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:40:46,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 810.79ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 47.9MB in the end (delta: 25.8MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2024-11-07 22:40:46,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.32ms. Allocated memory is still 100.7MB. Free memory was 47.9MB in the beginning and 45.6MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 22:40:46,007 INFO L158 Benchmark]: Boogie Preprocessor took 54.76ms. Allocated memory is still 100.7MB. Free memory was 45.6MB in the beginning and 43.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:40:46,007 INFO L158 Benchmark]: RCFGBuilder took 348.67ms. Allocated memory is still 100.7MB. Free memory was 43.8MB in the beginning and 31.7MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 22:40:46,008 INFO L158 Benchmark]: TraceAbstraction took 585.28ms. Allocated memory is still 100.7MB. Free memory was 30.9MB in the beginning and 42.3MB in the end (delta: -11.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:40:46,008 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 100.7MB. Free memory was 42.3MB in the beginning and 41.8MB in the end (delta: 566.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:40:46,009 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 810.79ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 47.9MB in the end (delta: 25.8MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.32ms. Allocated memory is still 100.7MB. Free memory was 47.9MB in the beginning and 45.6MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.76ms. Allocated memory is still 100.7MB. Free memory was 45.6MB in the beginning and 43.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 348.67ms. Allocated memory is still 100.7MB. Free memory was 43.8MB in the beginning and 31.7MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 585.28ms. Allocated memory is still 100.7MB. Free memory was 30.9MB in the beginning and 42.3MB in the end (delta: -11.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 100.7MB. Free memory was 42.3MB in the beginning and 41.8MB in the end (delta: 566.8kB). 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: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1580, overapproximation of fgets at line 1558. 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 const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 0; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_postdec_04_bad() [L1552] int data; [L1553] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1568] COND TRUE \read(STATIC_CONST_TRUE) [L1571] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1571]: 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 26 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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 [2024-11-07 22:40:46,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_04_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7a58e28b5c22b6da6a2d7a400744ff8c761f23ff9e97d9aaed3d255e504e297d --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 22:40:48,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 22:40:48,206 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-07 22:40:48,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 22:40:48,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 22:40:48,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-07 22:40:48,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 22:40:48,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 22:40:48,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 22:40:48,234 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 22:40:48,234 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 22:40:48,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 22:40:48,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 22:40:48,235 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 22:40:48,235 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 22:40:48,235 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 22:40:48,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 22:40:48,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 22:40:48,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 22:40:48,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 22:40:48,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 22:40:48,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 22:40:48,236 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 22:40:48,236 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 22:40:48,236 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 22:40:48,236 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 22:40:48,237 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 22:40:48,237 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 22:40:48,237 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 22:40:48,237 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 22:40:48,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 22:40:48,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 22:40:48,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 22:40:48,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 22:40:48,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 22:40:48,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 22:40:48,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 22:40:48,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 22:40:48,238 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 22:40:48,238 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 22:40:48,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 22:40:48,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 22:40:48,239 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 22:40:48,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 22:40:48,239 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 7a58e28b5c22b6da6a2d7a400744ff8c761f23ff9e97d9aaed3d255e504e297d [2024-11-07 22:40:48,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 22:40:48,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 22:40:48,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 22:40:48,532 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 22:40:48,532 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 22:40:48,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_04_bad.i [2024-11-07 22:40:49,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 22:40:50,387 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 22:40:50,387 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_04_bad.i [2024-11-07 22:40:50,416 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f4051b2cf/80b1af7addff4a3583a2630a255a49cc/FLAG58e4f0dd7 [2024-11-07 22:40:50,435 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f4051b2cf/80b1af7addff4a3583a2630a255a49cc [2024-11-07 22:40:50,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 22:40:50,440 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 22:40:50,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 22:40:50,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 22:40:50,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 22:40:50,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:40:50" (1/1) ... [2024-11-07 22:40:50,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64fde12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:50, skipping insertion in model container [2024-11-07 22:40:50,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:40:50" (1/1) ... [2024-11-07 22:40:50,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 22:40:51,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 22:40:51,163 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 22:40:51,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 22:40:51,364 INFO L204 MainTranslator]: Completed translation [2024-11-07 22:40:51,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51 WrapperNode [2024-11-07 22:40:51,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 22:40:51,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 22:40:51,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 22:40:51,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 22:40:51,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (1/1) ... [2024-11-07 22:40:51,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (1/1) ... [2024-11-07 22:40:51,414 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-11-07 22:40:51,415 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 22:40:51,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 22:40:51,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 22:40:51,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 22:40:51,425 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (1/1) ... [2024-11-07 22:40:51,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (1/1) ... [2024-11-07 22:40:51,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (1/1) ... [2024-11-07 22:40:51,444 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-07 22:40:51,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (1/1) ... [2024-11-07 22:40:51,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (1/1) ... [2024-11-07 22:40:51,450 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (1/1) ... [2024-11-07 22:40:51,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (1/1) ... [2024-11-07 22:40:51,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (1/1) ... [2024-11-07 22:40:51,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (1/1) ... [2024-11-07 22:40:51,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 22:40:51,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 22:40:51,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 22:40:51,458 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 22:40:51,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (1/1) ... [2024-11-07 22:40:51,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 22:40:51,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 22:40:51,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 22:40:51,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 22:40:51,510 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-07 22:40:51,510 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-07 22:40:51,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-07 22:40:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 22:40:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 22:40:51,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 22:40:51,642 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 22:40:51,644 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 22:40:51,752 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-07 22:40:51,752 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 22:40:51,763 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 22:40:51,763 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 22:40:51,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:40:51 BoogieIcfgContainer [2024-11-07 22:40:51,764 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 22:40:51,766 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 22:40:51,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 22:40:51,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 22:40:51,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:40:50" (1/3) ... [2024-11-07 22:40:51,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e131674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:40:51, skipping insertion in model container [2024-11-07 22:40:51,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:40:51" (2/3) ... [2024-11-07 22:40:51,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e131674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:40:51, skipping insertion in model container [2024-11-07 22:40:51,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:40:51" (3/3) ... [2024-11-07 22:40:51,776 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_04_bad.i [2024-11-07 22:40:51,788 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 22:40:51,789 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 22:40:51,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 22:40:51,853 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=PETRI_NET, 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;@73197906, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 22:40:51,853 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 22:40:51,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 22:40:51,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 22:40:51,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 22:40:51,864 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 22:40:51,864 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 22:40:51,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 22:40:51,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1958583963, now seen corresponding path program 1 times [2024-11-07 22:40:51,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 22:40:51,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494863469] [2024-11-07 22:40:51,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 22:40:51,882 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 [2024-11-07 22:40:51,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 22:40:51,885 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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) [2024-11-07 22:40:51,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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 [2024-11-07 22:40:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 22:40:52,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 22:40:52,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 22:40:52,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 22:40:52,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 22:40:52,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 22:40:52,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494863469] [2024-11-07 22:40:52,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494863469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 22:40:52,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 22:40:52,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 22:40:52,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125314832] [2024-11-07 22:40:52,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 22:40:52,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 22:40:52,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 22:40:52,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 22:40:52,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 22:40:52,099 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.0) 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) [2024-11-07 22:40:52,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 22:40:52,120 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2024-11-07 22:40:52,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 22:40:52,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) 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 [2024-11-07 22:40:52,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 22:40:52,128 INFO L225 Difference]: With dead ends: 40 [2024-11-07 22:40:52,128 INFO L226 Difference]: Without dead ends: 16 [2024-11-07 22:40:52,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 22:40:52,134 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 22:40:52,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 25 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 22:40:52,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-07 22:40:52,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-07 22:40:52,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2024-11-07 22:40:52,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2024-11-07 22:40:52,170 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 11 [2024-11-07 22:40:52,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 22:40:52,171 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-11-07 22:40:52,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) 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) [2024-11-07 22:40:52,172 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-07 22:40:52,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-07 22:40:52,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 22:40:52,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 22:40:52,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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 [2024-11-07 22:40:52,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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 [2024-11-07 22:40:52,376 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 22:40:52,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 22:40:52,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1014034784, now seen corresponding path program 1 times [2024-11-07 22:40:52,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 22:40:52,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857006780] [2024-11-07 22:40:52,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 22:40:52,378 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 [2024-11-07 22:40:52,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 22:40:52,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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) [2024-11-07 22:40:52,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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 [2024-11-07 22:40:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 22:40:52,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 22:40:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 22:40:52,537 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-07 22:40:52,537 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 22:40:52,539 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-07 22:40:52,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-07 22:40:52,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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 [2024-11-07 22:40:52,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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 [2024-11-07 22:40:52,747 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-07 22:40:52,767 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 22:40:52,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:40:52 BoogieIcfgContainer [2024-11-07 22:40:52,770 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 22:40:52,771 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 22:40:52,771 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 22:40:52,771 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 22:40:52,772 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:40:51" (3/4) ... [2024-11-07 22:40:52,773 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 22:40:52,774 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 22:40:52,775 INFO L158 Benchmark]: Toolchain (without parser) took 2335.35ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 56.7MB in the beginning and 45.8MB in the end (delta: 10.9MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2024-11-07 22:40:52,775 INFO L158 Benchmark]: CDTParser took 1.74ms. Allocated memory is still 83.9MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:40:52,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 922.47ms. Allocated memory is still 83.9MB. Free memory was 56.5MB in the beginning and 37.5MB in the end (delta: 19.0MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2024-11-07 22:40:52,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.61ms. Allocated memory is still 83.9MB. Free memory was 37.5MB in the beginning and 34.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:40:52,776 INFO L158 Benchmark]: Boogie Preprocessor took 41.73ms. Allocated memory is still 83.9MB. Free memory was 34.6MB in the beginning and 32.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:40:52,776 INFO L158 Benchmark]: RCFGBuilder took 306.40ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 32.3MB in the beginning and 76.7MB in the end (delta: -44.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2024-11-07 22:40:52,776 INFO L158 Benchmark]: TraceAbstraction took 1004.48ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 45.8MB in the end (delta: 30.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-07 22:40:52,777 INFO L158 Benchmark]: Witness Printer took 3.33ms. Allocated memory is still 117.4MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:40:52,778 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.74ms. Allocated memory is still 83.9MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 922.47ms. Allocated memory is still 83.9MB. Free memory was 56.5MB in the beginning and 37.5MB in the end (delta: 19.0MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.61ms. Allocated memory is still 83.9MB. Free memory was 37.5MB in the beginning and 34.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.73ms. Allocated memory is still 83.9MB. Free memory was 34.6MB in the beginning and 32.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 306.40ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 32.3MB in the beginning and 76.7MB in the end (delta: -44.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1004.48ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 45.8MB in the end (delta: 30.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.33ms. Allocated memory is still 117.4MB. Free memory is still 45.8MB. 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: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1580, overapproximation of fgets at line 1558. 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 const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 0; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_postdec_04_bad() [L1552] int data; [L1553] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1568] COND TRUE \read(STATIC_CONST_TRUE) [L1571] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1571]: 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: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 25 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 2 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 [2024-11-07 22:40:52,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample