./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 a5452b108c7f0f61426de0e0299f4c8f6249a1c631578efbf002f9f7ea1f6e8a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:00:46,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:00:46,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-12 20:00:46,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:00:46,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:00:46,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:00:46,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:00:46,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:00:46,206 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:00:46,211 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:00:46,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:00:46,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:00:46,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:00:46,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:00:46,213 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:00:46,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:00:46,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:00:46,213 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:00:46,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:00:46,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:00:46,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:00:46,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:00:46,217 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:00:46,218 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:00:46,218 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:00:46,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:00:46,219 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:00:46,219 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:00:46,219 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:00:46,219 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:00:46,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:00:46,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:00:46,220 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:00:46,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:00:46,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:00:46,220 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:00:46,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:00:46,221 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:00:46,221 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:00:46,221 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:00:46,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:00:46,222 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5452b108c7f0f61426de0e0299f4c8f6249a1c631578efbf002f9f7ea1f6e8a [2024-11-12 20:00:46,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:00:46,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:00:46,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:00:46,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:00:46,510 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:00:46,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i [2024-11-12 20:00:47,965 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:00:48,280 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:00:48,281 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i [2024-11-12 20:00:48,304 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21023ecc3/8e45d2ebc03e475ba83ba52bde5bc879/FLAG069cfc43b [2024-11-12 20:00:48,539 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21023ecc3/8e45d2ebc03e475ba83ba52bde5bc879 [2024-11-12 20:00:48,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:00:48,543 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:00:48,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:00:48,545 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:00:48,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:00:48,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:00:48" (1/1) ... [2024-11-12 20:00:48,554 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d364d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:48, skipping insertion in model container [2024-11-12 20:00:48,555 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:00:48" (1/1) ... [2024-11-12 20:00:48,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:00:49,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:00:49,364 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:00:49,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:00:49,598 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:00:49,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49 WrapperNode [2024-11-12 20:00:49,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:00:49,599 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:00:49,600 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:00:49,600 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:00:49,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (1/1) ... [2024-11-12 20:00:49,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (1/1) ... [2024-11-12 20:00:49,679 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2024-11-12 20:00:49,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:00:49,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:00:49,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:00:49,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:00:49,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (1/1) ... [2024-11-12 20:00:49,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (1/1) ... [2024-11-12 20:00:49,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (1/1) ... [2024-11-12 20:00:49,712 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-12 20:00:49,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (1/1) ... [2024-11-12 20:00:49,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (1/1) ... [2024-11-12 20:00:49,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (1/1) ... [2024-11-12 20:00:49,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (1/1) ... [2024-11-12 20:00:49,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (1/1) ... [2024-11-12 20:00:49,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (1/1) ... [2024-11-12 20:00:49,726 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:00:49,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:00:49,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:00:49,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:00:49,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (1/1) ... [2024-11-12 20:00:49,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:00:49,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:00:49,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 20:00:49,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 20:00:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-12 20:00:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-12 20:00:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:00:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:00:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:00:49,942 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:00:49,944 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:00:50,169 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-12 20:00:50,170 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:00:50,186 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:00:50,188 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 20:00:50,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:00:50 BoogieIcfgContainer [2024-11-12 20:00:50,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:00:50,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:00:50,191 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:00:50,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:00:50,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:00:48" (1/3) ... [2024-11-12 20:00:50,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1d9bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:00:50, skipping insertion in model container [2024-11-12 20:00:50,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:49" (2/3) ... [2024-11-12 20:00:50,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1d9bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:00:50, skipping insertion in model container [2024-11-12 20:00:50,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:00:50" (3/3) ... [2024-11-12 20:00:50,197 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_18_bad.i [2024-11-12 20:00:50,230 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:00:50,230 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 20:00:50,296 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:00:50,307 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;@1a97101, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:00:50,307 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-12 20:00:50,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 39 states have internal predecessors, (53), 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) [2024-11-12 20:00:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-12 20:00:50,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 20:00:50,317 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:00:50,318 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 20:00:50,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:00:50,322 INFO L85 PathProgramCache]: Analyzing trace with hash 749975941, now seen corresponding path program 1 times [2024-11-12 20:00:50,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:00:50,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393432567] [2024-11-12 20:00:50,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:00:50,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:00:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:00:50,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 20:00:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:00:50,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:00:50,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:00:50,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393432567] [2024-11-12 20:00:50,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393432567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:00:50,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:00:50,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 20:00:50,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532514237] [2024-11-12 20:00:50,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:00:50,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 20:00:50,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:00:50,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 20:00:50,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 20:00:50,944 INFO L87 Difference]: Start difference. First operand has 43 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 39 states have internal predecessors, (53), 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 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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) [2024-11-12 20:00:51,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:00:51,046 INFO L93 Difference]: Finished difference Result 49 states and 64 transitions. [2024-11-12 20:00:51,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 20:00:51,049 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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 17 [2024-11-12 20:00:51,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 20:00:51,056 INFO L225 Difference]: With dead ends: 49 [2024-11-12 20:00:51,056 INFO L226 Difference]: Without dead ends: 41 [2024-11-12 20:00:51,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 20:00:51,063 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 4 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 20:00:51,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 257 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 20:00:51,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-12 20:00:51,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2024-11-12 20:00:51,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 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) [2024-11-12 20:00:51,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions. [2024-11-12 20:00:51,094 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 53 transitions. Word has length 17 [2024-11-12 20:00:51,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 20:00:51,094 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 53 transitions. [2024-11-12 20:00:51,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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) [2024-11-12 20:00:51,095 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2024-11-12 20:00:51,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-12 20:00:51,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 20:00:51,096 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:00:51,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:00:51,097 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 20:00:51,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:00:51,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1253172961, now seen corresponding path program 1 times [2024-11-12 20:00:51,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:00:51,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102584105] [2024-11-12 20:00:51,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:00:51,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:00:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:00:51,141 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:00:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:00:51,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:00:51,184 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 20:00:51,186 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-12 20:00:51,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-12 20:00:51,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 20:00:51,193 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-12 20:00:51,223 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 20:00:51,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:00:51 BoogieIcfgContainer [2024-11-12 20:00:51,228 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 20:00:51,229 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:00:51,229 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:00:51,229 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:00:51,230 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:00:50" (3/4) ... [2024-11-12 20:00:51,233 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 20:00:51,234 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:00:51,236 INFO L158 Benchmark]: Toolchain (without parser) took 2692.08ms. Allocated memory is still 146.8MB. Free memory was 76.8MB in the beginning and 61.2MB in the end (delta: 15.6MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2024-11-12 20:00:51,236 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:00:51,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1053.77ms. Allocated memory is still 146.8MB. Free memory was 76.6MB in the beginning and 72.3MB in the end (delta: 4.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-12 20:00:51,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.41ms. Allocated memory is still 146.8MB. Free memory was 72.3MB in the beginning and 69.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 20:00:51,238 INFO L158 Benchmark]: Boogie Preprocessor took 42.54ms. Allocated memory is still 146.8MB. Free memory was 69.2MB in the beginning and 66.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:00:51,238 INFO L158 Benchmark]: RCFGBuilder took 462.69ms. Allocated memory is still 146.8MB. Free memory was 66.6MB in the beginning and 50.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-12 20:00:51,239 INFO L158 Benchmark]: TraceAbstraction took 1037.53ms. Allocated memory is still 146.8MB. Free memory was 49.3MB in the beginning and 62.4MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:00:51,239 INFO L158 Benchmark]: Witness Printer took 5.62ms. Allocated memory is still 146.8MB. Free memory was 62.1MB in the beginning and 61.2MB in the end (delta: 896.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:00:51,242 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1053.77ms. Allocated memory is still 146.8MB. Free memory was 76.6MB in the beginning and 72.3MB in the end (delta: 4.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.41ms. Allocated memory is still 146.8MB. Free memory was 72.3MB in the beginning and 69.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.54ms. Allocated memory is still 146.8MB. Free memory was 69.2MB in the beginning and 66.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 462.69ms. Allocated memory is still 146.8MB. Free memory was 66.6MB in the beginning and 50.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1037.53ms. Allocated memory is still 146.8MB. Free memory was 49.3MB in the beginning and 62.4MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.62ms. Allocated memory is still 146.8MB. Free memory was 62.1MB in the beginning and 61.2MB in the end (delta: 896.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); 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 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) [L1566] 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] [L1567] CALL CWE191_Integer_Underflow__int_rand_postdec_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-- 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, 43 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, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 257 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 212 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 45 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 0.4s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 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 [2024-11-12 20:00:51,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 a5452b108c7f0f61426de0e0299f4c8f6249a1c631578efbf002f9f7ea1f6e8a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:00:53,448 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:00:53,518 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-12 20:00:53,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:00:53,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:00:53,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-12 20:00:53,570 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:00:53,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:00:53,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:00:53,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:00:53,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:00:53,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:00:53,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:00:53,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:00:53,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:00:53,577 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:00:53,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:00:53,578 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:00:53,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:00:53,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:00:53,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:00:53,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:00:53,583 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 20:00:53,583 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-12 20:00:53,583 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:00:53,583 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:00:53,583 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-12 20:00:53,584 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:00:53,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:00:53,584 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:00:53,584 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:00:53,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:00:53,585 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:00:53,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:00:53,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:00:53,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:00:53,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:00:53,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:00:53,586 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-12 20:00:53,588 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-12 20:00:53,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:00:53,589 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:00:53,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:00:53,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:00:53,589 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5452b108c7f0f61426de0e0299f4c8f6249a1c631578efbf002f9f7ea1f6e8a [2024-11-12 20:00:53,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:00:53,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:00:53,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:00:53,932 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:00:53,933 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:00:53,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i [2024-11-12 20:00:55,559 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:00:55,977 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:00:55,979 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i [2024-11-12 20:00:56,012 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/453a1e561/a721f6869dc74b819f6e251d688a3198/FLAG0b82b8220 [2024-11-12 20:00:56,029 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/453a1e561/a721f6869dc74b819f6e251d688a3198 [2024-11-12 20:00:56,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:00:56,033 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:00:56,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:00:56,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:00:56,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:00:56,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:00:56" (1/1) ... [2024-11-12 20:00:56,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc0037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:56, skipping insertion in model container [2024-11-12 20:00:56,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:00:56" (1/1) ... [2024-11-12 20:00:56,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:00:56,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:00:56,811 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:00:56,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:00:57,030 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:00:57,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57 WrapperNode [2024-11-12 20:00:57,030 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:00:57,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:00:57,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:00:57,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:00:57,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (1/1) ... [2024-11-12 20:00:57,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (1/1) ... [2024-11-12 20:00:57,096 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2024-11-12 20:00:57,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:00:57,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:00:57,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:00:57,098 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:00:57,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (1/1) ... [2024-11-12 20:00:57,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (1/1) ... [2024-11-12 20:00:57,115 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (1/1) ... [2024-11-12 20:00:57,130 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-12 20:00:57,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (1/1) ... [2024-11-12 20:00:57,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (1/1) ... [2024-11-12 20:00:57,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (1/1) ... [2024-11-12 20:00:57,148 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (1/1) ... [2024-11-12 20:00:57,150 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (1/1) ... [2024-11-12 20:00:57,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (1/1) ... [2024-11-12 20:00:57,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:00:57,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:00:57,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:00:57,159 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:00:57,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (1/1) ... [2024-11-12 20:00:57,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:00:57,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:00:57,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 20:00:57,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 20:00:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-12 20:00:57,260 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-12 20:00:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:00:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:00:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:00:57,414 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:00:57,416 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:00:57,571 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-12 20:00:57,571 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:00:57,583 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:00:57,584 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 20:00:57,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:00:57 BoogieIcfgContainer [2024-11-12 20:00:57,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:00:57,587 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:00:57,587 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:00:57,590 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:00:57,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:00:56" (1/3) ... [2024-11-12 20:00:57,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae3c75a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:00:57, skipping insertion in model container [2024-11-12 20:00:57,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:00:57" (2/3) ... [2024-11-12 20:00:57,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae3c75a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:00:57, skipping insertion in model container [2024-11-12 20:00:57,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:00:57" (3/3) ... [2024-11-12 20:00:57,594 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_18_bad.i [2024-11-12 20:00:57,610 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:00:57,610 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 20:00:57,673 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:00:57,680 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;@5db50544, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:00:57,682 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-12 20:00:57,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 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) [2024-11-12 20:00:57,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-12 20:00:57,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 20:00:57,694 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:00:57,695 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 20:00:57,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:00:57,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1419896693, now seen corresponding path program 1 times [2024-11-12 20:00:57,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 20:00:57,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041186108] [2024-11-12 20:00:57,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:00:57,714 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 [2024-11-12 20:00:57,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 20:00:57,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/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) [2024-11-12 20:00:57,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-12 20:00:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:00:57,824 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:00:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:00:57,908 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-12 20:00:57,909 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 20:00:57,910 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-12 20:00:57,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-12 20:00:57,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-12 20:00:58,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/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 [2024-11-12 20:00:58,117 INFO L421 BasicCegarLoop]: Path program histogram: [1] [2024-11-12 20:00:58,153 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 20:00:58,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:00:58 BoogieIcfgContainer [2024-11-12 20:00:58,157 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 20:00:58,159 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:00:58,159 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:00:58,160 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:00:58,160 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:00:57" (3/4) ... [2024-11-12 20:00:58,163 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 20:00:58,164 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:00:58,165 INFO L158 Benchmark]: Toolchain (without parser) took 2131.61ms. Allocated memory was 54.5MB in the beginning and 83.9MB in the end (delta: 29.4MB). Free memory was 31.8MB in the beginning and 53.7MB in the end (delta: -21.8MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-11-12 20:00:58,166 INFO L158 Benchmark]: CDTParser took 1.02ms. Allocated memory is still 39.8MB. Free memory was 21.2MB in the beginning and 21.1MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:00:58,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 994.80ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 31.5MB in the beginning and 40.9MB in the end (delta: -9.4MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2024-11-12 20:00:58,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.45ms. Allocated memory is still 69.2MB. Free memory was 40.9MB in the beginning and 37.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:00:58,167 INFO L158 Benchmark]: Boogie Preprocessor took 59.79ms. Allocated memory is still 69.2MB. Free memory was 37.7MB in the beginning and 35.3MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 20:00:58,168 INFO L158 Benchmark]: RCFGBuilder took 427.08ms. Allocated memory is still 69.2MB. Free memory was 35.0MB in the beginning and 38.0MB in the end (delta: -3.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-12 20:00:58,169 INFO L158 Benchmark]: TraceAbstraction took 570.62ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 37.3MB in the beginning and 54.1MB in the end (delta: -16.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2024-11-12 20:00:58,169 INFO L158 Benchmark]: Witness Printer took 4.99ms. Allocated memory is still 83.9MB. Free memory was 54.1MB in the beginning and 53.7MB in the end (delta: 475.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:00:58,173 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02ms. Allocated memory is still 39.8MB. Free memory was 21.2MB in the beginning and 21.1MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 994.80ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 31.5MB in the beginning and 40.9MB in the end (delta: -9.4MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.45ms. Allocated memory is still 69.2MB. Free memory was 40.9MB in the beginning and 37.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.79ms. Allocated memory is still 69.2MB. Free memory was 37.7MB in the beginning and 35.3MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 427.08ms. Allocated memory is still 69.2MB. Free memory was 35.0MB in the beginning and 38.0MB in the end (delta: -3.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 570.62ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 37.3MB in the beginning and 54.1MB in the end (delta: -16.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Witness Printer took 4.99ms. Allocated memory is still 83.9MB. Free memory was 54.1MB in the beginning and 53.7MB in the end (delta: 475.1kB). 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 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); 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 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) [L1566] 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] [L1567] CALL CWE191_Integer_Underflow__int_rand_postdec_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-- 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, 23 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=23occurred 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, 13 NumberOfCodeBlocks, 13 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 [2024-11-12 20:00:58,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample