./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_02_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_sub_02_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 49704bb8c7c903f86a60c1409d13977243487e52eba8e685b645151ac5138c5c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 01:15:16,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 01:15:16,282 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-23 01:15:16,287 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 01:15:16,288 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 01:15:16,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 01:15:16,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 01:15:16,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 01:15:16,315 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 01:15:16,316 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 01:15:16,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 01:15:16,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 01:15:16,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 01:15:16,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 01:15:16,321 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 01:15:16,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 01:15:16,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 01:15:16,323 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 01:15:16,323 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 01:15:16,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 01:15:16,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 01:15:16,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 01:15:16,327 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 01:15:16,327 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 01:15:16,328 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 01:15:16,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 01:15:16,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 01:15:16,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 01:15:16,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 01:15:16,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 01:15:16,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 01:15:16,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:15:16,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 01:15:16,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 01:15:16,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 01:15:16,331 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 01:15:16,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 01:15:16,331 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 01:15:16,331 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 01:15:16,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 01:15:16,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 01:15:16,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49704bb8c7c903f86a60c1409d13977243487e52eba8e685b645151ac5138c5c [2024-11-23 01:15:16,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 01:15:16,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 01:15:16,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 01:15:16,602 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 01:15:16,602 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 01:15:16,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_02_bad.i [2024-11-23 01:15:18,098 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 01:15:18,435 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 01:15:18,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_02_bad.i [2024-11-23 01:15:18,460 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316f67094/e3ccf747ca24487682f2b1b9fd860d94/FLAGfe8f3bb7c [2024-11-23 01:15:18,479 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316f67094/e3ccf747ca24487682f2b1b9fd860d94 [2024-11-23 01:15:18,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 01:15:18,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 01:15:18,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 01:15:18,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 01:15:18,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 01:15:18,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:15:18" (1/1) ... [2024-11-23 01:15:18,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f1d90d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:18, skipping insertion in model container [2024-11-23 01:15:18,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:15:18" (1/1) ... [2024-11-23 01:15:18,552 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 01:15:19,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:15:19,378 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 01:15:19,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:15:19,591 INFO L204 MainTranslator]: Completed translation [2024-11-23 01:15:19,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19 WrapperNode [2024-11-23 01:15:19,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 01:15:19,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 01:15:19,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 01:15:19,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 01:15:19,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (1/1) ... [2024-11-23 01:15:19,629 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (1/1) ... [2024-11-23 01:15:19,655 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2024-11-23 01:15:19,656 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 01:15:19,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 01:15:19,656 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 01:15:19,657 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 01:15:19,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (1/1) ... [2024-11-23 01:15:19,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (1/1) ... [2024-11-23 01:15:19,669 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (1/1) ... [2024-11-23 01:15:19,680 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-23 01:15:19,680 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (1/1) ... [2024-11-23 01:15:19,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (1/1) ... [2024-11-23 01:15:19,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (1/1) ... [2024-11-23 01:15:19,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (1/1) ... [2024-11-23 01:15:19,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (1/1) ... [2024-11-23 01:15:19,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (1/1) ... [2024-11-23 01:15:19,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 01:15:19,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 01:15:19,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 01:15:19,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 01:15:19,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (1/1) ... [2024-11-23 01:15:19,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:15:19,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:15:19,743 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) [2024-11-23 01:15:19,745 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 [2024-11-23 01:15:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-23 01:15:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-23 01:15:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 01:15:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 01:15:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 01:15:19,931 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 01:15:19,933 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 01:15:20,106 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-23 01:15:20,106 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 01:15:20,116 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 01:15:20,117 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 01:15:20,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:15:20 BoogieIcfgContainer [2024-11-23 01:15:20,117 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 01:15:20,119 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 01:15:20,119 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 01:15:20,122 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 01:15:20,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:15:18" (1/3) ... [2024-11-23 01:15:20,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7684493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:15:20, skipping insertion in model container [2024-11-23 01:15:20,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:19" (2/3) ... [2024-11-23 01:15:20,123 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7684493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:15:20, skipping insertion in model container [2024-11-23 01:15:20,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:15:20" (3/3) ... [2024-11-23 01:15:20,124 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_02_bad.i [2024-11-23 01:15:20,137 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 01:15:20,138 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-23 01:15:20,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 01:15:20,196 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;@56c560f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 01:15:20,196 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 01:15:20,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 36 states have (on average 1.5) internal successors, (54), 38 states have internal predecessors, (54), 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) [2024-11-23 01:15:20,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-23 01:15:20,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:15:20,206 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:15:20,207 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 01:15:20,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:15:20,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1313219472, now seen corresponding path program 1 times [2024-11-23 01:15:20,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:15:20,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460187256] [2024-11-23 01:15:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:15:20,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:15:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:15:20,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:15:20,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:15:20,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460187256] [2024-11-23 01:15:20,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460187256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:15:20,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:15:20,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:15:20,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389333805] [2024-11-23 01:15:20,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:15:20,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 01:15:20,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:15:20,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 01:15:20,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 01:15:20,433 INFO L87 Difference]: Start difference. First operand has 42 states, 36 states have (on average 1.5) internal successors, (54), 38 states have internal predecessors, (54), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-23 01:15:20,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:15:20,449 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2024-11-23 01:15:20,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 01:15:20,451 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2024-11-23 01:15:20,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:15:20,458 INFO L225 Difference]: With dead ends: 57 [2024-11-23 01:15:20,459 INFO L226 Difference]: Without dead ends: 35 [2024-11-23 01:15:20,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 01:15:20,465 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 01:15:20,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 01:15:20,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-23 01:15:20,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-23 01:15:20,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 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) [2024-11-23 01:15:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2024-11-23 01:15:20,500 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 10 [2024-11-23 01:15:20,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:15:20,500 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2024-11-23 01:15:20,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-23 01:15:20,501 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2024-11-23 01:15:20,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-23 01:15:20,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:15:20,502 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:15:20,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 01:15:20,502 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 01:15:20,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:15:20,503 INFO L85 PathProgramCache]: Analyzing trace with hash 411320115, now seen corresponding path program 1 times [2024-11-23 01:15:20,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:15:20,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259705951] [2024-11-23 01:15:20,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:15:20,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:15:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:15:20,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:15:20,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:15:20,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259705951] [2024-11-23 01:15:20,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259705951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:15:20,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:15:20,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 01:15:20,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018859536] [2024-11-23 01:15:20,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:15:20,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:15:20,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:15:20,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:15:20,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 01:15:20,859 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. 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) [2024-11-23 01:15:20,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:15:20,968 INFO L93 Difference]: Finished difference Result 40 states and 53 transitions. [2024-11-23 01:15:20,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:15:20,968 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 [2024-11-23 01:15:20,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:15:20,970 INFO L225 Difference]: With dead ends: 40 [2024-11-23 01:15:20,971 INFO L226 Difference]: Without dead ends: 39 [2024-11-23 01:15:20,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:15:20,972 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 40 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 01:15:20,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 154 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 01:15:20,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-23 01:15:20,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2024-11-23 01:15:20,980 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) [2024-11-23 01:15:20,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-11-23 01:15:20,981 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 16 [2024-11-23 01:15:20,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:15:20,981 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-11-23 01:15:20,982 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) [2024-11-23 01:15:20,982 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-11-23 01:15:20,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-23 01:15:20,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:15:20,983 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:15:20,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 01:15:20,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 01:15:20,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:15:20,985 INFO L85 PathProgramCache]: Analyzing trace with hash 900891737, now seen corresponding path program 1 times [2024-11-23 01:15:20,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:15:20,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878161466] [2024-11-23 01:15:20,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:15:20,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:15:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 01:15:21,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 01:15:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 01:15:21,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 01:15:21,067 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-23 01:15:21,069 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-23 01:15:21,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-23 01:15:21,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 01:15:21,075 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-23 01:15:21,102 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 01:15:21,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:15:21 BoogieIcfgContainer [2024-11-23 01:15:21,109 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 01:15:21,110 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 01:15:21,110 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 01:15:21,111 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 01:15:21,111 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:15:20" (3/4) ... [2024-11-23 01:15:21,113 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-23 01:15:21,115 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 01:15:21,116 INFO L158 Benchmark]: Toolchain (without parser) took 2632.80ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 93.3MB in the beginning and 150.3MB in the end (delta: -57.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:15:21,116 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:15:21,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1104.92ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 93.3MB in the beginning and 127.1MB in the end (delta: -33.8MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2024-11-23 01:15:21,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.15ms. Allocated memory is still 195.0MB. Free memory was 127.1MB in the beginning and 124.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 01:15:21,118 INFO L158 Benchmark]: Boogie Preprocessor took 38.14ms. Allocated memory is still 195.0MB. Free memory was 124.0MB in the beginning and 121.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 01:15:21,121 INFO L158 Benchmark]: RCFGBuilder took 422.19ms. Allocated memory is still 195.0MB. Free memory was 121.9MB in the beginning and 105.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 01:15:21,121 INFO L158 Benchmark]: TraceAbstraction took 990.81ms. Allocated memory is still 195.0MB. Free memory was 104.1MB in the beginning and 150.3MB in the end (delta: -46.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:15:21,121 INFO L158 Benchmark]: Witness Printer took 4.88ms. Allocated memory is still 195.0MB. Free memory is still 150.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:15:21,123 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1104.92ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 93.3MB in the beginning and 127.1MB in the end (delta: -33.8MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.15ms. Allocated memory is still 195.0MB. Free memory was 127.1MB in the beginning and 124.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.14ms. Allocated memory is still 195.0MB. Free memory was 124.0MB in the beginning and 121.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 422.19ms. Allocated memory is still 195.0MB. Free memory was 121.9MB in the beginning and 105.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 990.81ms. Allocated memory is still 195.0MB. Free memory was 104.1MB in the beginning and 150.3MB in the end (delta: -46.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.88ms. Allocated memory is still 195.0MB. Free memory is still 150.3MB. 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: 1559]: 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 1567. 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] [L1567] 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) [L1567] 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] [L1568] CALL CWE191_Integer_Underflow__int_rand_sub_02_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [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, data=0, 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, data=0, 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, data=0, 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)) [L1559] 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: 1559]: 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 210 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 116 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 94 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2024-11-23 01:15:21,147 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/current/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_sub_02_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 49704bb8c7c903f86a60c1409d13977243487e52eba8e685b645151ac5138c5c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 01:15:23,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 01:15:23,509 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-23 01:15:23,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 01:15:23,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 01:15:23,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-23 01:15:23,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 01:15:23,554 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 01:15:23,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 01:15:23,555 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 01:15:23,555 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 01:15:23,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 01:15:23,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 01:15:23,557 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 01:15:23,558 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 01:15:23,559 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 01:15:23,559 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 01:15:23,559 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 01:15:23,560 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 01:15:23,560 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 01:15:23,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 01:15:23,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 01:15:23,562 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 01:15:23,562 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 01:15:23,562 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 01:15:23,563 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 01:15:23,563 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 01:15:23,563 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 01:15:23,564 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 01:15:23,564 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 01:15:23,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 01:15:23,565 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 01:15:23,565 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 01:15:23,565 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 01:15:23,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:15:23,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 01:15:23,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 01:15:23,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 01:15:23,567 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-23 01:15:23,568 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 01:15:23,568 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 01:15:23,568 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 01:15:23,568 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 01:15:23,569 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 01:15:23,569 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49704bb8c7c903f86a60c1409d13977243487e52eba8e685b645151ac5138c5c [2024-11-23 01:15:23,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 01:15:23,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 01:15:23,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 01:15:23,897 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 01:15:23,898 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 01:15:23,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_02_bad.i [2024-11-23 01:15:25,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 01:15:25,696 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 01:15:25,697 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_02_bad.i [2024-11-23 01:15:25,720 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b0bee18a/f7bfb8b39bef4e15a4519647b07f52cd/FLAG7a9a000a4 [2024-11-23 01:15:25,927 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b0bee18a/f7bfb8b39bef4e15a4519647b07f52cd [2024-11-23 01:15:25,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 01:15:25,930 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 01:15:25,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 01:15:25,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 01:15:25,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 01:15:25,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:15:25" (1/1) ... [2024-11-23 01:15:25,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f91527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:25, skipping insertion in model container [2024-11-23 01:15:25,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:15:25" (1/1) ... [2024-11-23 01:15:26,016 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 01:15:26,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:15:26,889 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 01:15:26,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:15:27,131 INFO L204 MainTranslator]: Completed translation [2024-11-23 01:15:27,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27 WrapperNode [2024-11-23 01:15:27,132 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 01:15:27,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 01:15:27,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 01:15:27,133 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 01:15:27,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (1/1) ... [2024-11-23 01:15:27,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (1/1) ... [2024-11-23 01:15:27,203 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2024-11-23 01:15:27,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 01:15:27,208 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 01:15:27,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 01:15:27,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 01:15:27,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (1/1) ... [2024-11-23 01:15:27,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (1/1) ... [2024-11-23 01:15:27,226 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (1/1) ... [2024-11-23 01:15:27,246 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-23 01:15:27,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (1/1) ... [2024-11-23 01:15:27,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (1/1) ... [2024-11-23 01:15:27,257 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (1/1) ... [2024-11-23 01:15:27,264 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (1/1) ... [2024-11-23 01:15:27,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (1/1) ... [2024-11-23 01:15:27,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (1/1) ... [2024-11-23 01:15:27,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 01:15:27,277 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 01:15:27,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 01:15:27,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 01:15:27,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (1/1) ... [2024-11-23 01:15:27,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:15:27,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:15:27,318 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) [2024-11-23 01:15:27,325 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 [2024-11-23 01:15:27,374 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-23 01:15:27,374 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-23 01:15:27,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 01:15:27,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 01:15:27,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 01:15:27,527 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 01:15:27,529 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 01:15:27,677 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-23 01:15:27,677 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 01:15:27,688 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 01:15:27,688 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 01:15:27,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:15:27 BoogieIcfgContainer [2024-11-23 01:15:27,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 01:15:27,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 01:15:27,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 01:15:27,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 01:15:27,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:15:25" (1/3) ... [2024-11-23 01:15:27,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dcf458b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:15:27, skipping insertion in model container [2024-11-23 01:15:27,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:27" (2/3) ... [2024-11-23 01:15:27,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dcf458b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:15:27, skipping insertion in model container [2024-11-23 01:15:27,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:15:27" (3/3) ... [2024-11-23 01:15:27,698 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_02_bad.i [2024-11-23 01:15:27,714 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 01:15:27,714 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-23 01:15:27,777 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 01:15:27,782 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;@1e3e72ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 01:15:27,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 01:15:27,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 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) [2024-11-23 01:15:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-23 01:15:27,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:15:27,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:15:27,791 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 01:15:27,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:15:27,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2051308032, now seen corresponding path program 1 times [2024-11-23 01:15:27,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-23 01:15:27,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859214758] [2024-11-23 01:15:27,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:15:27,809 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 [2024-11-23 01:15:27,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-23 01:15:27,813 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) [2024-11-23 01:15:27,814 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 [2024-11-23 01:15:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:15:27,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 01:15:27,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:15:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:15:27,967 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:15:27,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-23 01:15:27,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859214758] [2024-11-23 01:15:27,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859214758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:15:27,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:15:27,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:15:27,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662480956] [2024-11-23 01:15:27,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:15:27,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 01:15:27,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-23 01:15:27,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 01:15:27,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 01:15:28,001 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-23 01:15:28,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 01:15:28,017 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2024-11-23 01:15:28,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 01:15:28,019 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2024-11-23 01:15:28,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 01:15:28,024 INFO L225 Difference]: With dead ends: 36 [2024-11-23 01:15:28,024 INFO L226 Difference]: Without dead ends: 13 [2024-11-23 01:15:28,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 01:15:28,030 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 01:15:28,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 01:15:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-23 01:15:28,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-23 01:15:28,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2024-11-23 01:15:28,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-11-23 01:15:28,059 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2024-11-23 01:15:28,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 01:15:28,060 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-11-23 01:15:28,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-23 01:15:28,060 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-23 01:15:28,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-23 01:15:28,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 01:15:28,062 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:15:28,067 INFO L540 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)] Forceful destruction successful, exit code 0 [2024-11-23 01:15:28,263 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 [2024-11-23 01:15:28,263 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 01:15:28,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:15:28,264 INFO L85 PathProgramCache]: Analyzing trace with hash -83247131, now seen corresponding path program 1 times [2024-11-23 01:15:28,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-23 01:15:28,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090939527] [2024-11-23 01:15:28,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:15:28,266 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 [2024-11-23 01:15:28,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-23 01:15:28,268 INFO L229 MonitoredProcess]: Starting monitored process 3 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) [2024-11-23 01:15:28,270 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 (3)] Waiting until timeout for monitored process [2024-11-23 01:15:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 01:15:28,336 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 01:15:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 01:15:28,374 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-23 01:15:28,375 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-23 01:15:28,376 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-23 01:15:28,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-23 01:15:28,386 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 (3)] Ended with exit code 0 [2024-11-23 01:15:28,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /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 [2024-11-23 01:15:28,581 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-23 01:15:28,601 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 01:15:28,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:15:28 BoogieIcfgContainer [2024-11-23 01:15:28,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 01:15:28,605 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 01:15:28,606 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 01:15:28,606 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 01:15:28,606 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:15:27" (3/4) ... [2024-11-23 01:15:28,610 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-23 01:15:28,611 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 01:15:28,612 INFO L158 Benchmark]: Toolchain (without parser) took 2681.96ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 45.3MB in the beginning and 30.6MB in the end (delta: 14.8MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2024-11-23 01:15:28,612 INFO L158 Benchmark]: CDTParser took 1.02ms. Allocated memory is still 54.5MB. Free memory is still 37.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:15:28,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1200.30ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 45.1MB in the beginning and 56.3MB in the end (delta: -11.2MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2024-11-23 01:15:28,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.13ms. Allocated memory is still 92.3MB. Free memory was 56.3MB in the beginning and 52.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 01:15:28,614 INFO L158 Benchmark]: Boogie Preprocessor took 68.45ms. Allocated memory is still 92.3MB. Free memory was 52.9MB in the beginning and 50.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 01:15:28,614 INFO L158 Benchmark]: RCFGBuilder took 412.77ms. Allocated memory is still 92.3MB. Free memory was 50.4MB in the beginning and 59.9MB in the end (delta: -9.5MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-11-23 01:15:28,614 INFO L158 Benchmark]: TraceAbstraction took 913.82ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 30.6MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-23 01:15:28,615 INFO L158 Benchmark]: Witness Printer took 5.93ms. Allocated memory is still 92.3MB. Free memory is still 30.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:15:28,618 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 54.5MB. Free memory is still 37.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1200.30ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 45.1MB in the beginning and 56.3MB in the end (delta: -11.2MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.13ms. Allocated memory is still 92.3MB. Free memory was 56.3MB in the beginning and 52.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.45ms. Allocated memory is still 92.3MB. Free memory was 52.9MB in the beginning and 50.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 412.77ms. Allocated memory is still 92.3MB. Free memory was 50.4MB in the beginning and 59.9MB in the end (delta: -9.5MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * TraceAbstraction took 913.82ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 30.6MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 5.93ms. Allocated memory is still 92.3MB. Free memory is still 30.6MB. 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: 1559]: 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 1567. 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] [L1567] 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) [L1567] 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] [L1568] CALL CWE191_Integer_Underflow__int_rand_sub_02_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [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, data=0, 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)) [L1559] 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: 1559]: 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 23 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-23 01:15:28,647 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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample