./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 90aa6c1ebc353e827c4144d5889d21bd353c41e4cd52414fcd72b08d0d8a7ec6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:19:51,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:19:51,894 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-11 23:19:51,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:19:51,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:19:51,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:19:51,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:19:51,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:19:51,916 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:19:51,916 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:19:51,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:19:51,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:19:51,917 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:19:51,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:19:51,919 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:19:51,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:19:51,919 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:19:51,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 23:19:51,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:19:51,920 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:19:51,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:19:51,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:19:51,923 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:19:51,923 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:19:51,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:19:51,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:19:51,923 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:19:51,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:19:51,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:19:51,924 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:19:51,924 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:19:51,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:19:51,924 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:19:51,924 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:19:51,924 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:19:51,925 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 23:19:51,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 23:19:51,925 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:19:51,925 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:19:51,925 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:19:51,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:19:51,926 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90aa6c1ebc353e827c4144d5889d21bd353c41e4cd52414fcd72b08d0d8a7ec6 [2024-10-11 23:19:52,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:19:52,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:19:52,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:19:52,173 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:19:52,173 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:19:52,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i [2024-10-11 23:19:53,344 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 23:19:53,656 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 23:19:53,656 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i [2024-10-11 23:19:53,682 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/003ef664b/b623413f1e534e20b9d2897cb306b9c4/FLAG00c87fa6a [2024-10-11 23:19:53,927 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/003ef664b/b623413f1e534e20b9d2897cb306b9c4 [2024-10-11 23:19:53,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 23:19:53,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 23:19:53,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 23:19:53,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 23:19:53,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 23:19:53,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:19:53" (1/1) ... [2024-10-11 23:19:53,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bd2c361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:53, skipping insertion in model container [2024-10-11 23:19:53,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:19:53" (1/1) ... [2024-10-11 23:19:54,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 23:19:54,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:19:54,539 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 23:19:54,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:19:54,703 INFO L204 MainTranslator]: Completed translation [2024-10-11 23:19:54,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54 WrapperNode [2024-10-11 23:19:54,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 23:19:54,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 23:19:54,705 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 23:19:54,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 23:19:54,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (1/1) ... [2024-10-11 23:19:54,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (1/1) ... [2024-10-11 23:19:54,752 INFO L138 Inliner]: procedures = 497, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 139 [2024-10-11 23:19:54,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 23:19:54,753 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 23:19:54,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 23:19:54,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 23:19:54,762 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (1/1) ... [2024-10-11 23:19:54,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (1/1) ... [2024-10-11 23:19:54,765 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (1/1) ... [2024-10-11 23:19:54,774 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-11 23:19:54,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (1/1) ... [2024-10-11 23:19:54,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (1/1) ... [2024-10-11 23:19:54,777 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (1/1) ... [2024-10-11 23:19:54,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (1/1) ... [2024-10-11 23:19:54,783 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (1/1) ... [2024-10-11 23:19:54,784 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (1/1) ... [2024-10-11 23:19:54,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 23:19:54,787 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 23:19:54,787 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 23:19:54,787 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 23:19:54,788 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (1/1) ... [2024-10-11 23:19:54,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:19:54,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:19:54,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 23:19:54,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 23:19:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-10-11 23:19:54,869 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-10-11 23:19:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 23:19:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 23:19:54,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 23:19:54,998 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 23:19:55,000 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 23:19:55,191 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-10-11 23:19:55,191 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 23:19:55,214 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 23:19:55,214 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 23:19:55,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:19:55 BoogieIcfgContainer [2024-10-11 23:19:55,215 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 23:19:55,216 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 23:19:55,216 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 23:19:55,219 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 23:19:55,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:19:53" (1/3) ... [2024-10-11 23:19:55,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798ca94d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:19:55, skipping insertion in model container [2024-10-11 23:19:55,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:19:54" (2/3) ... [2024-10-11 23:19:55,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798ca94d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:19:55, skipping insertion in model container [2024-10-11 23:19:55,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:19:55" (3/3) ... [2024-10-11 23:19:55,221 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_15_bad.i [2024-10-11 23:19:55,235 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 23:19:55,235 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 23:19:55,316 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:19:55,321 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;@d33e113, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:19:55,322 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 23:19:55,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 36 states have (on average 1.5555555555555556) internal successors, (56), 40 states have internal predecessors, (56), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 23:19:55,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 23:19:55,331 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:19:55,331 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:19:55,332 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 23:19:55,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:19:55,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1617223020, now seen corresponding path program 1 times [2024-10-11 23:19:55,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:19:55,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968072165] [2024-10-11 23:19:55,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:19:55,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:19:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:19:55,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 23:19:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:19:55,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:19:55,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:19:55,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968072165] [2024-10-11 23:19:55,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968072165] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:19:55,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:19:55,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:19:55,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830235623] [2024-10-11 23:19:55,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:19:55,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:19:55,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:19:55,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:19:55,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:19:55,545 INFO L87 Difference]: Start difference. First operand has 44 states, 36 states have (on average 1.5555555555555556) internal successors, (56), 40 states have internal predecessors, (56), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-11 23:19:55,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:19:55,575 INFO L93 Difference]: Finished difference Result 60 states and 83 transitions. [2024-10-11 23:19:55,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:19:55,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2024-10-11 23:19:55,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:19:55,582 INFO L225 Difference]: With dead ends: 60 [2024-10-11 23:19:55,582 INFO L226 Difference]: Without dead ends: 36 [2024-10-11 23:19:55,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:19:55,586 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 23:19:55,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 23:19:55,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-11 23:19:55,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-10-11 23:19:55,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.46875) internal successors, (47), 33 states have internal predecessors, (47), 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) [2024-10-11 23:19:55,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2024-10-11 23:19:55,614 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 12 [2024-10-11 23:19:55,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:19:55,614 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2024-10-11 23:19:55,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-11 23:19:55,614 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2024-10-11 23:19:55,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 23:19:55,615 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:19:55,615 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:19:55,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 23:19:55,615 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 23:19:55,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:19:55,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1463964835, now seen corresponding path program 1 times [2024-10-11 23:19:55,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:19:55,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321996798] [2024-10-11 23:19:55,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:19:55,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:19:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:19:55,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 23:19:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:19:55,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:19:55,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:19:55,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321996798] [2024-10-11 23:19:55,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321996798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:19:55,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:19:55,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 23:19:55,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751840306] [2024-10-11 23:19:55,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:19:55,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 23:19:55,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:19:55,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 23:19:55,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 23:19:55,912 INFO L87 Difference]: Start difference. First operand 36 states and 49 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 23:19:56,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:19:56,004 INFO L93 Difference]: Finished difference Result 43 states and 56 transitions. [2024-10-11 23:19:56,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 23:19:56,005 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-11 23:19:56,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:19:56,006 INFO L225 Difference]: With dead ends: 43 [2024-10-11 23:19:56,006 INFO L226 Difference]: Without dead ends: 42 [2024-10-11 23:19:56,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-11 23:19:56,008 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 40 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:19:56,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 182 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:19:56,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-10-11 23:19:56,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2024-10-11 23:19:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 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) [2024-10-11 23:19:56,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2024-10-11 23:19:56,015 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 17 [2024-10-11 23:19:56,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:19:56,016 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2024-10-11 23:19:56,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 23:19:56,016 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2024-10-11 23:19:56,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 23:19:56,018 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:19:56,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:19:56,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 23:19:56,018 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 23:19:56,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:19:56,019 INFO L85 PathProgramCache]: Analyzing trace with hash -504108983, now seen corresponding path program 1 times [2024-10-11 23:19:56,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:19:56,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956637840] [2024-10-11 23:19:56,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:19:56,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:19:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:19:56,045 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 23:19:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:19:56,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 23:19:56,085 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 23:19:56,087 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-10-11 23:19:56,088 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-10-11 23:19:56,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 23:19:56,091 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 23:19:56,117 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 23:19:56,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 11:19:56 BoogieIcfgContainer [2024-10-11 23:19:56,123 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 23:19:56,123 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 23:19:56,124 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 23:19:56,124 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 23:19:56,124 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:19:55" (3/4) ... [2024-10-11 23:19:56,126 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 23:19:56,127 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 23:19:56,127 INFO L158 Benchmark]: Toolchain (without parser) took 2195.77ms. Allocated memory is still 178.3MB. Free memory was 104.5MB in the beginning and 85.1MB in the end (delta: 19.4MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2024-10-11 23:19:56,127 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 23:19:56,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 771.80ms. Allocated memory is still 178.3MB. Free memory was 104.4MB in the beginning and 86.7MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-11 23:19:56,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.71ms. Allocated memory is still 178.3MB. Free memory was 86.7MB in the beginning and 83.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 23:19:56,129 INFO L158 Benchmark]: Boogie Preprocessor took 33.08ms. Allocated memory is still 178.3MB. Free memory was 83.6MB in the beginning and 81.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 23:19:56,129 INFO L158 Benchmark]: RCFGBuilder took 427.95ms. Allocated memory is still 178.3MB. Free memory was 81.2MB in the beginning and 61.5MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 23:19:56,130 INFO L158 Benchmark]: TraceAbstraction took 906.75ms. Allocated memory is still 178.3MB. Free memory was 60.7MB in the beginning and 86.2MB in the end (delta: -25.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 23:19:56,130 INFO L158 Benchmark]: Witness Printer took 3.46ms. Allocated memory is still 178.3MB. Free memory was 86.2MB in the beginning and 85.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 23:19:56,133 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 771.80ms. Allocated memory is still 178.3MB. Free memory was 104.4MB in the beginning and 86.7MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.71ms. Allocated memory is still 178.3MB. Free memory was 86.7MB in the beginning and 83.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.08ms. Allocated memory is still 178.3MB. Free memory was 83.6MB in the beginning and 81.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 427.95ms. Allocated memory is still 178.3MB. Free memory was 81.2MB in the beginning and 61.5MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 906.75ms. Allocated memory is still 178.3MB. Free memory was 60.7MB in the beginning and 86.2MB in the end (delta: -25.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.46ms. Allocated memory is still 178.3MB. Free memory was 86.2MB in the beginning and 85.1MB in the end (delta: 1.0MB). 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: 1565]: 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 1578. 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); [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_rand_postdec_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1554] case 6: [L1554] case 6: [L1555] 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] case 6: [L1555] 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] [L1555] 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] [L1555] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] case 7: [L1565] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1565]: 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, 44 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 288 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 197 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 91 mSDtfsCounter, 81 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 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 [2024-10-11 23:19:56,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 90aa6c1ebc353e827c4144d5889d21bd353c41e4cd52414fcd72b08d0d8a7ec6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:19:57,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:19:58,004 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-10-11 23:19:58,008 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:19:58,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:19:58,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-10-11 23:19:58,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:19:58,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:19:58,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:19:58,038 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:19:58,038 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:19:58,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:19:58,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:19:58,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:19:58,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:19:58,039 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:19:58,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:19:58,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:19:58,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:19:58,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:19:58,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:19:58,041 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:19:58,041 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 23:19:58,042 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 23:19:58,042 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:19:58,042 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:19:58,043 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 23:19:58,043 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:19:58,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:19:58,043 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:19:58,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:19:58,044 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:19:58,044 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:19:58,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:19:58,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:19:58,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:19:58,045 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:19:58,045 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:19:58,045 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 23:19:58,046 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 23:19:58,046 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:19:58,046 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:19:58,046 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:19:58,046 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:19:58,046 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 23:19:58,047 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90aa6c1ebc353e827c4144d5889d21bd353c41e4cd52414fcd72b08d0d8a7ec6 [2024-10-11 23:19:58,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:19:58,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:19:58,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:19:58,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:19:58,321 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:19:58,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i [2024-10-11 23:19:59,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 23:19:59,890 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 23:19:59,891 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i [2024-10-11 23:19:59,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3cbfca399/43ee49d5ec1f45169f4e9b518dc11b03/FLAG50a17ef33 [2024-10-11 23:20:00,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3cbfca399/43ee49d5ec1f45169f4e9b518dc11b03 [2024-10-11 23:20:00,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 23:20:00,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 23:20:00,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 23:20:00,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 23:20:00,165 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 23:20:00,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:20:00" (1/1) ... [2024-10-11 23:20:00,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@208a4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:00, skipping insertion in model container [2024-10-11 23:20:00,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:20:00" (1/1) ... [2024-10-11 23:20:00,227 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 23:20:00,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:20:00,864 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 23:20:00,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:20:01,049 INFO L204 MainTranslator]: Completed translation [2024-10-11 23:20:01,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01 WrapperNode [2024-10-11 23:20:01,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 23:20:01,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 23:20:01,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 23:20:01,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 23:20:01,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (1/1) ... [2024-10-11 23:20:01,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (1/1) ... [2024-10-11 23:20:01,110 INFO L138 Inliner]: procedures = 502, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2024-10-11 23:20:01,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 23:20:01,114 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 23:20:01,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 23:20:01,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 23:20:01,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (1/1) ... [2024-10-11 23:20:01,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (1/1) ... [2024-10-11 23:20:01,130 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (1/1) ... [2024-10-11 23:20:01,143 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-11 23:20:01,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (1/1) ... [2024-10-11 23:20:01,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (1/1) ... [2024-10-11 23:20:01,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (1/1) ... [2024-10-11 23:20:01,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (1/1) ... [2024-10-11 23:20:01,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (1/1) ... [2024-10-11 23:20:01,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (1/1) ... [2024-10-11 23:20:01,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 23:20:01,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 23:20:01,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 23:20:01,174 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 23:20:01,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (1/1) ... [2024-10-11 23:20:01,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:20:01,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:20:01,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 23:20:01,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 23:20:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-10-11 23:20:01,242 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-10-11 23:20:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 23:20:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 23:20:01,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 23:20:01,367 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 23:20:01,368 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 23:20:01,504 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-10-11 23:20:01,505 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 23:20:01,540 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 23:20:01,540 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 23:20:01,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:20:01 BoogieIcfgContainer [2024-10-11 23:20:01,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 23:20:01,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 23:20:01,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 23:20:01,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 23:20:01,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:20:00" (1/3) ... [2024-10-11 23:20:01,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e84e4bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:20:01, skipping insertion in model container [2024-10-11 23:20:01,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:20:01" (2/3) ... [2024-10-11 23:20:01,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e84e4bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:20:01, skipping insertion in model container [2024-10-11 23:20:01,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:20:01" (3/3) ... [2024-10-11 23:20:01,545 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_15_bad.i [2024-10-11 23:20:01,558 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 23:20:01,559 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 23:20:01,604 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:20:01,610 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;@1a95ece2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:20:01,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 23:20:01,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.5) internal successors, (24), 20 states have internal predecessors, (24), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 23:20:01,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 23:20:01,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:20:01,620 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:20:01,620 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 23:20:01,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:20:01,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1512967103, now seen corresponding path program 1 times [2024-10-11 23:20:01,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 23:20:01,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80838906] [2024-10-11 23:20:01,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:20:01,635 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 [2024-10-11 23:20:01,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 23:20:01,638 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/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) [2024-10-11 23:20:01,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 23:20:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:20:01,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 23:20:01,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:20:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:20:01,777 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:20:01,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 23:20:01,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80838906] [2024-10-11 23:20:01,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80838906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:20:01,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:20:01,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:20:01,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487710660] [2024-10-11 23:20:01,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:20:01,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:20:01,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 23:20:01,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:20:01,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:20:01,803 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.5) internal successors, (24), 20 states have internal predecessors, (24), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-11 23:20:01,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:20:01,827 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2024-10-11 23:20:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:20:01,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2024-10-11 23:20:01,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:20:01,835 INFO L225 Difference]: With dead ends: 39 [2024-10-11 23:20:01,835 INFO L226 Difference]: Without dead ends: 14 [2024-10-11 23:20:01,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:20:01,840 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 23:20:01,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 23:20:01,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-10-11 23:20:01,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-10-11 23:20:01,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2024-10-11 23:20:01,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-10-11 23:20:01,873 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2024-10-11 23:20:01,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:20:01,873 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-10-11 23:20:01,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-11 23:20:01,873 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-10-11 23:20:01,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 23:20:01,874 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:20:01,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:20:01,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-11 23:20:02,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/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 [2024-10-11 23:20:02,078 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 23:20:02,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:20:02,079 INFO L85 PathProgramCache]: Analyzing trace with hash -611705462, now seen corresponding path program 1 times [2024-10-11 23:20:02,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 23:20:02,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720897599] [2024-10-11 23:20:02,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:20:02,080 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 [2024-10-11 23:20:02,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 23:20:02,083 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/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) [2024-10-11 23:20:02,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 23:20:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:20:02,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 23:20:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:20:02,188 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-11 23:20:02,189 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 23:20:02,190 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-10-11 23:20:02,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-10-11 23:20:02,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 23:20:02,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/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 [2024-10-11 23:20:02,398 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 23:20:02,432 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 23:20:02,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 11:20:02 BoogieIcfgContainer [2024-10-11 23:20:02,434 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 23:20:02,435 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 23:20:02,435 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 23:20:02,435 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 23:20:02,436 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:20:01" (3/4) ... [2024-10-11 23:20:02,437 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 23:20:02,438 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 23:20:02,439 INFO L158 Benchmark]: Toolchain (without parser) took 2279.92ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 68.3MB in the beginning and 92.6MB in the end (delta: -24.3MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2024-10-11 23:20:02,439 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory was 41.4MB in the beginning and 41.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 23:20:02,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 889.86ms. Allocated memory is still 98.6MB. Free memory was 68.0MB in the beginning and 53.5MB in the end (delta: 14.5MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2024-10-11 23:20:02,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.03ms. Allocated memory is still 98.6MB. Free memory was 53.5MB in the beginning and 50.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 23:20:02,440 INFO L158 Benchmark]: Boogie Preprocessor took 55.93ms. Allocated memory is still 98.6MB. Free memory was 50.4MB in the beginning and 47.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 23:20:02,440 INFO L158 Benchmark]: RCFGBuilder took 370.09ms. Allocated memory is still 98.6MB. Free memory was 47.7MB in the beginning and 62.2MB in the end (delta: -14.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-10-11 23:20:02,441 INFO L158 Benchmark]: TraceAbstraction took 893.21ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 61.3MB in the beginning and 92.6MB in the end (delta: -31.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-11 23:20:02,447 INFO L158 Benchmark]: Witness Printer took 3.26ms. Allocated memory is still 125.8MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 23:20:02,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory was 41.4MB in the beginning and 41.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 889.86ms. Allocated memory is still 98.6MB. Free memory was 68.0MB in the beginning and 53.5MB in the end (delta: 14.5MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.03ms. Allocated memory is still 98.6MB. Free memory was 53.5MB in the beginning and 50.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.93ms. Allocated memory is still 98.6MB. Free memory was 50.4MB in the beginning and 47.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 370.09ms. Allocated memory is still 98.6MB. Free memory was 47.7MB in the beginning and 62.2MB in the end (delta: -14.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * TraceAbstraction took 893.21ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 61.3MB in the beginning and 92.6MB in the end (delta: -31.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 3.26ms. Allocated memory is still 125.8MB. Free memory is still 92.6MB. 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: 1565]: 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 1578. 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); [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_rand_postdec_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1554] case 6: [L1555] 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] [L1555] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] case 7: [L1565] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1565]: 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, 24 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, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 21 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-11 23:20:02,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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