./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_18_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_rand_sub_18_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', '0cde81bf957ddac462130ac8769d0cf39027561cd9ee754d07668e857077a02c'] 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_rand_sub_18_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 0cde81bf957ddac462130ac8769d0cf39027561cd9ee754d07668e857077a02c --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 22:58:07,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 22:58:07,387 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-07 22:58:07,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 22:58:07,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 22:58:07,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 22:58:07,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 22:58:07,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 22:58:07,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 22:58:07,421 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 22:58:07,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 22:58:07,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 22:58:07,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 22:58:07,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 22:58:07,423 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 22:58:07,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 22:58:07,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 22:58:07,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 22:58:07,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 22:58:07,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 22:58:07,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 22:58:07,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 22:58:07,424 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 22:58:07,424 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 22:58:07,424 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 22:58:07,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 22:58:07,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 22:58:07,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 22:58:07,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 22:58:07,425 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 22:58:07,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 22:58:07,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 22:58:07,425 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 22:58:07,425 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 22:58:07,425 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 22:58:07,426 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 22:58:07,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 22:58:07,426 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 22:58:07,426 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 22:58:07,426 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 22:58:07,426 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 22:58:07,426 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 -> 0cde81bf957ddac462130ac8769d0cf39027561cd9ee754d07668e857077a02c [2024-11-07 22:58:07,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 22:58:07,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 22:58:07,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 22:58:07,705 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 22:58:07,706 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 22:58:07,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_18_bad.i [2024-11-07 22:58:08,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 22:58:09,287 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 22:58:09,287 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_18_bad.i [2024-11-07 22:58:09,312 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a396a1080/369bdedea1d147208979e83387f0df75/FLAG8fdac8fc1 [2024-11-07 22:58:09,488 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a396a1080/369bdedea1d147208979e83387f0df75 [2024-11-07 22:58:09,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 22:58:09,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 22:58:09,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 22:58:09,496 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 22:58:09,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 22:58:09,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:58:09" (1/1) ... [2024-11-07 22:58:09,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@271f017e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:09, skipping insertion in model container [2024-11-07 22:58:09,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:58:09" (1/1) ... [2024-11-07 22:58:09,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 22:58:10,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 22:58:10,193 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 22:58:10,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 22:58:10,439 INFO L204 MainTranslator]: Completed translation [2024-11-07 22:58:10,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10 WrapperNode [2024-11-07 22:58:10,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 22:58:10,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 22:58:10,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 22:58:10,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 22:58:10,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (1/1) ... [2024-11-07 22:58:10,471 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (1/1) ... [2024-11-07 22:58:10,500 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2024-11-07 22:58:10,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 22:58:10,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 22:58:10,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 22:58:10,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 22:58:10,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (1/1) ... [2024-11-07 22:58:10,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (1/1) ... [2024-11-07 22:58:10,514 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (1/1) ... [2024-11-07 22:58:10,529 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-07 22:58:10,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (1/1) ... [2024-11-07 22:58:10,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (1/1) ... [2024-11-07 22:58:10,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (1/1) ... [2024-11-07 22:58:10,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (1/1) ... [2024-11-07 22:58:10,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (1/1) ... [2024-11-07 22:58:10,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (1/1) ... [2024-11-07 22:58:10,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 22:58:10,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 22:58:10,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 22:58:10,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 22:58:10,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (1/1) ... [2024-11-07 22:58:10,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 22:58:10,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 22:58:10,590 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 22:58:10,593 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 22:58:10,611 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-07 22:58:10,611 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-07 22:58:10,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 22:58:10,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 22:58:10,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 22:58:10,735 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 22:58:10,736 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 22:58:10,893 INFO L? ?]: Removed 57 outVars from TransFormulas that were not future-live. [2024-11-07 22:58:10,893 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 22:58:10,902 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 22:58:10,902 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 22:58:10,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:58:10 BoogieIcfgContainer [2024-11-07 22:58:10,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 22:58:10,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 22:58:10,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 22:58:10,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 22:58:10,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:58:09" (1/3) ... [2024-11-07 22:58:10,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d2761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:58:10, skipping insertion in model container [2024-11-07 22:58:10,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:10" (2/3) ... [2024-11-07 22:58:10,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d2761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:58:10, skipping insertion in model container [2024-11-07 22:58:10,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:58:10" (3/3) ... [2024-11-07 22:58:10,912 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_18_bad.i [2024-11-07 22:58:10,924 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 22:58:10,925 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 22:58:10,977 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 22:58:10,990 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;@3f6baeca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 22:58:10,990 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 22:58:10,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 38 states have internal predecessors, (52), 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 22:58:11,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-07 22:58:11,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 22:58:11,002 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 22:58:11,002 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 22:58:11,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 22:58:11,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1629039747, now seen corresponding path program 1 times [2024-11-07 22:58:11,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 22:58:11,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014981886] [2024-11-07 22:58:11,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 22:58:11,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 22:58:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 22:58:11,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 22:58:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 22:58:11,428 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 22:58:11,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 22:58:11,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014981886] [2024-11-07 22:58:11,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014981886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 22:58:11,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 22:58:11,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 22:58:11,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485288051] [2024-11-07 22:58:11,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 22:58:11,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 22:58:11,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 22:58:11,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 22:58:11,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 22:58:11,447 INFO L87 Difference]: Start difference. First operand has 42 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 38 states have internal predecessors, (52), 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) Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 22:58:11,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 22:58:11,514 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2024-11-07 22:58:11,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 22:58:11,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 16 [2024-11-07 22:58:11,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 22:58:11,520 INFO L225 Difference]: With dead ends: 47 [2024-11-07 22:58:11,520 INFO L226 Difference]: Without dead ends: 39 [2024-11-07 22:58:11,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 22:58:11,523 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 4 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 22:58:11,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 214 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 22:58:11,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-07 22:58:11,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2024-11-07 22:58:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 35 states have internal predecessors, (49), 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 22:58:11,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-11-07 22:58:11,549 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 16 [2024-11-07 22:58:11,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 22:58:11,549 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-11-07 22:58:11,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 22:58:11,549 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-11-07 22:58:11,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-07 22:58:11,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 22:58:11,550 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 22:58:11,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 22:58:11,550 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 22:58:11,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 22:58:11,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1139468125, now seen corresponding path program 1 times [2024-11-07 22:58:11,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 22:58:11,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420466021] [2024-11-07 22:58:11,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 22:58:11,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 22:58:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 22:58:11,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 22:58:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 22:58:11,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 22:58:11,608 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 22:58:11,610 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-07 22:58:11,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-07 22:58:11,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 22:58:11,616 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-07 22:58:11,641 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 22:58:11,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:58:11 BoogieIcfgContainer [2024-11-07 22:58:11,647 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 22:58:11,647 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 22:58:11,647 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 22:58:11,647 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 22:58:11,648 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:58:10" (3/4) ... [2024-11-07 22:58:11,652 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 22:58:11,653 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 22:58:11,654 INFO L158 Benchmark]: Toolchain (without parser) took 2160.32ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 88.4MB in the beginning and 96.8MB in the end (delta: -8.4MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2024-11-07 22:58:11,654 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:58:11,654 INFO L158 Benchmark]: CACSL2BoogieTranslator took 946.11ms. Allocated memory is still 117.4MB. Free memory was 88.2MB in the beginning and 71.3MB in the end (delta: 16.9MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2024-11-07 22:58:11,655 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.33ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 68.4MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 22:58:11,655 INFO L158 Benchmark]: Boogie Preprocessor took 49.06ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 66.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:58:11,655 INFO L158 Benchmark]: RCFGBuilder took 352.50ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 52.1MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 22:58:11,656 INFO L158 Benchmark]: TraceAbstraction took 742.19ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 51.7MB in the beginning and 96.8MB in the end (delta: -45.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:58:11,656 INFO L158 Benchmark]: Witness Printer took 5.67ms. Allocated memory is still 159.4MB. Free memory was 96.8MB in the beginning and 96.8MB in the end (delta: 22.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:58:11,658 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 946.11ms. Allocated memory is still 117.4MB. Free memory was 88.2MB in the beginning and 71.3MB in the end (delta: 16.9MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.33ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 68.4MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.06ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 66.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 352.50ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 52.1MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 742.19ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 51.7MB in the beginning and 96.8MB in the end (delta: -45.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.67ms. Allocated memory is still 159.4MB. Free memory was 96.8MB in the beginning and 96.8MB in the end (delta: 22.5kB). 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: 1558]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1565. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1565] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL CWE191_Integer_Underflow__int_rand_sub_18_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1558]: 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, 42 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 214 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 45 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 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 22:58:11,685 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_rand_sub_18_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 0cde81bf957ddac462130ac8769d0cf39027561cd9ee754d07668e857077a02c --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 22:58:13,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 22:58:13,868 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-07 22:58:13,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 22:58:13,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 22:58:13,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-07 22:58:13,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 22:58:13,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 22:58:13,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 22:58:13,907 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 22:58:13,907 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 22:58:13,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 22:58:13,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 22:58:13,908 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 22:58:13,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 22:58:13,909 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 22:58:13,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 22:58:13,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 22:58:13,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 22:58:13,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 22:58:13,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 22:58:13,910 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 22:58:13,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 22:58:13,911 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 22:58:13,911 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 22:58:13,911 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 22:58:13,911 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 22:58:13,911 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 22:58:13,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 22:58:13,911 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 -> 0cde81bf957ddac462130ac8769d0cf39027561cd9ee754d07668e857077a02c [2024-11-07 22:58:14,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 22:58:14,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 22:58:14,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 22:58:14,211 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 22:58:14,211 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 22:58:14,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_18_bad.i [2024-11-07 22:58:15,571 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 22:58:15,862 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 22:58:15,863 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_18_bad.i [2024-11-07 22:58:15,899 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0c1bd475b/2f2a52fabb144c1abde2a9e9bfc2091d/FLAGbe8c56a38 [2024-11-07 22:58:15,916 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0c1bd475b/2f2a52fabb144c1abde2a9e9bfc2091d [2024-11-07 22:58:15,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 22:58:15,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 22:58:15,922 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 22:58:15,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 22:58:15,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 22:58:15,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:58:15" (1/1) ... [2024-11-07 22:58:15,929 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db754cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:15, skipping insertion in model container [2024-11-07 22:58:15,929 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:58:15" (1/1) ... [2024-11-07 22:58:15,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 22:58:16,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 22:58:16,604 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 22:58:16,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 22:58:16,852 INFO L204 MainTranslator]: Completed translation [2024-11-07 22:58:16,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16 WrapperNode [2024-11-07 22:58:16,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 22:58:16,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 22:58:16,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 22:58:16,855 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 22:58:16,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (1/1) ... [2024-11-07 22:58:16,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (1/1) ... [2024-11-07 22:58:16,916 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2024-11-07 22:58:16,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 22:58:16,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 22:58:16,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 22:58:16,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 22:58:16,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (1/1) ... [2024-11-07 22:58:16,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (1/1) ... [2024-11-07 22:58:16,932 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (1/1) ... [2024-11-07 22:58:16,947 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-07 22:58:16,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (1/1) ... [2024-11-07 22:58:16,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (1/1) ... [2024-11-07 22:58:16,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (1/1) ... [2024-11-07 22:58:16,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (1/1) ... [2024-11-07 22:58:16,964 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (1/1) ... [2024-11-07 22:58:16,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (1/1) ... [2024-11-07 22:58:16,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 22:58:16,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 22:58:16,970 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 22:58:16,970 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 22:58:16,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (1/1) ... [2024-11-07 22:58:16,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 22:58:16,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 22:58:17,015 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 22:58:17,018 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 22:58:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-07 22:58:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-07 22:58:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 22:58:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 22:58:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 22:58:17,142 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 22:58:17,144 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 22:58:17,246 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-07 22:58:17,246 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 22:58:17,254 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 22:58:17,255 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 22:58:17,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:58:17 BoogieIcfgContainer [2024-11-07 22:58:17,256 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 22:58:17,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 22:58:17,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 22:58:17,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 22:58:17,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:58:15" (1/3) ... [2024-11-07 22:58:17,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f074d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:58:17, skipping insertion in model container [2024-11-07 22:58:17,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:58:16" (2/3) ... [2024-11-07 22:58:17,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f074d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:58:17, skipping insertion in model container [2024-11-07 22:58:17,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:58:17" (3/3) ... [2024-11-07 22:58:17,267 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_18_bad.i [2024-11-07 22:58:17,278 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 22:58:17,279 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 22:58:17,331 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 22:58:17,341 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;@7c04a63c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 22:58:17,342 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 22:58:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 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 22:58:17,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-07 22:58:17,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 22:58:17,354 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 22:58:17,355 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-07 22:58:17,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 22:58:17,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1091912559, now seen corresponding path program 1 times [2024-11-07 22:58:17,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 22:58:17,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700595034] [2024-11-07 22:58:17,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 22:58:17,367 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 22:58:17,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 22:58:17,380 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 22:58:17,381 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 22:58:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 22:58:17,504 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 22:58:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 22:58:17,572 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-07 22:58:17,574 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 22:58:17,574 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-07 22:58:17,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-07 22:58:17,584 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 22:58:17,777 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 22:58:17,780 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-07 22:58:17,797 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 22:58:17,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:58:17 BoogieIcfgContainer [2024-11-07 22:58:17,803 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 22:58:17,803 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 22:58:17,803 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 22:58:17,803 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 22:58:17,804 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:58:17" (3/4) ... [2024-11-07 22:58:17,807 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 22:58:17,807 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 22:58:17,809 INFO L158 Benchmark]: Toolchain (without parser) took 1887.07ms. Allocated memory is still 83.9MB. Free memory was 57.7MB in the beginning and 42.3MB in the end (delta: 15.4MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2024-11-07 22:58:17,809 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 64.7MB in the beginning and 64.7MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:58:17,809 INFO L158 Benchmark]: CACSL2BoogieTranslator took 931.30ms. Allocated memory is still 83.9MB. Free memory was 57.7MB in the beginning and 51.2MB in the end (delta: 6.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-07 22:58:17,810 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.79ms. Allocated memory is still 83.9MB. Free memory was 51.2MB in the beginning and 48.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:58:17,810 INFO L158 Benchmark]: Boogie Preprocessor took 50.50ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 46.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:58:17,812 INFO L158 Benchmark]: RCFGBuilder took 286.41ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 33.9MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 22:58:17,813 INFO L158 Benchmark]: TraceAbstraction took 543.02ms. Allocated memory is still 83.9MB. Free memory was 33.5MB in the beginning and 42.7MB in the end (delta: -9.2MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2024-11-07 22:58:17,813 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 83.9MB. Free memory was 42.7MB in the beginning and 42.3MB in the end (delta: 418.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 22:58:17,815 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 64.7MB in the beginning and 64.7MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 931.30ms. Allocated memory is still 83.9MB. Free memory was 57.7MB in the beginning and 51.2MB in the end (delta: 6.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.79ms. Allocated memory is still 83.9MB. Free memory was 51.2MB in the beginning and 48.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.50ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 46.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 286.41ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 33.9MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 543.02ms. Allocated memory is still 83.9MB. Free memory was 33.5MB in the beginning and 42.7MB in the end (delta: -9.2MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 83.9MB. Free memory was 42.7MB in the beginning and 42.3MB in the end (delta: 418.4kB). 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: 1558]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1565. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1565] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL CWE191_Integer_Underflow__int_rand_sub_18_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1558]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 [2024-11-07 22:58:17,838 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