./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-regression/test12.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7ec0ddf4067238fb2036f4b1ba04b3da310b5a0f4281916240f2abfe32c0d19 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 13:48:31,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 13:48:31,878 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 13:48:31,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 13:48:31,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 13:48:31,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 13:48:31,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 13:48:31,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 13:48:31,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 13:48:31,913 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 13:48:31,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 13:48:31,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 13:48:31,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 13:48:31,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 13:48:31,916 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 13:48:31,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 13:48:31,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 13:48:31,917 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 13:48:31,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 13:48:31,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 13:48:31,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 13:48:31,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 13:48:31,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 13:48:31,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 13:48:31,920 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 13:48:31,920 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 13:48:31,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 13:48:31,921 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 13:48:31,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 13:48:31,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 13:48:31,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 13:48:31,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 13:48:31,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 13:48:31,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 13:48:31,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 13:48:31,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 13:48:31,924 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 13:48:31,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 13:48:31,924 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 13:48:31,924 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 13:48:31,925 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 13:48:31,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 13:48:31,925 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7ec0ddf4067238fb2036f4b1ba04b3da310b5a0f4281916240f2abfe32c0d19 [2024-11-08 13:48:32,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 13:48:32,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 13:48:32,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 13:48:32,208 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 13:48:32,208 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 13:48:32,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test12.c [2024-11-08 13:48:33,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 13:48:33,843 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 13:48:33,844 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test12.c [2024-11-08 13:48:33,850 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045b1c8f2/c7b6daec71c84abe811e88823295bed6/FLAG4883aa280 [2024-11-08 13:48:33,862 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045b1c8f2/c7b6daec71c84abe811e88823295bed6 [2024-11-08 13:48:33,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 13:48:33,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 13:48:33,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 13:48:33,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 13:48:33,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 13:48:33,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 01:48:33" (1/1) ... [2024-11-08 13:48:33,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@95f1565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:33, skipping insertion in model container [2024-11-08 13:48:33,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 01:48:33" (1/1) ... [2024-11-08 13:48:33,891 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 13:48:34,051 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test12.c[377,390] [2024-11-08 13:48:34,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 13:48:34,067 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 13:48:34,078 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test12.c[377,390] [2024-11-08 13:48:34,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 13:48:34,095 INFO L204 MainTranslator]: Completed translation [2024-11-08 13:48:34,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34 WrapperNode [2024-11-08 13:48:34,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 13:48:34,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 13:48:34,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 13:48:34,097 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 13:48:34,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ... [2024-11-08 13:48:34,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ... [2024-11-08 13:48:34,135 INFO L138 Inliner]: procedures = 12, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2024-11-08 13:48:34,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 13:48:34,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 13:48:34,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 13:48:34,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 13:48:34,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ... [2024-11-08 13:48:34,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ... [2024-11-08 13:48:34,147 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ... [2024-11-08 13:48:34,155 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [2, 1, 1]. 50 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 1, 1]. The 0 writes are split as follows [0, 0, 0]. [2024-11-08 13:48:34,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ... [2024-11-08 13:48:34,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ... [2024-11-08 13:48:34,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ... [2024-11-08 13:48:34,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ... [2024-11-08 13:48:34,160 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ... [2024-11-08 13:48:34,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ... [2024-11-08 13:48:34,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 13:48:34,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 13:48:34,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 13:48:34,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 13:48:34,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ... [2024-11-08 13:48:34,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 13:48:34,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 13:48:34,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 13:48:34,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 13:48:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 13:48:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 13:48:34,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 13:48:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 13:48:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 13:48:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 13:48:34,323 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 13:48:34,326 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 13:48:34,440 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 13:48:34,440 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 13:48:34,456 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 13:48:34,457 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 13:48:34,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 01:48:34 BoogieIcfgContainer [2024-11-08 13:48:34,457 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 13:48:34,460 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 13:48:34,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 13:48:34,464 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 13:48:34,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 01:48:33" (1/3) ... [2024-11-08 13:48:34,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d90b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 01:48:34, skipping insertion in model container [2024-11-08 13:48:34,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (2/3) ... [2024-11-08 13:48:34,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d90b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 01:48:34, skipping insertion in model container [2024-11-08 13:48:34,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 01:48:34" (3/3) ... [2024-11-08 13:48:34,468 INFO L112 eAbstractionObserver]: Analyzing ICFG test12.c [2024-11-08 13:48:34,487 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 13:48:34,487 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 13:48:34,537 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 13:48:34,544 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;@600eadb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 13:48:34,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 13:48:34,548 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 13:48:34,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 13:48:34,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 13:48:34,557 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-08 13:48:34,557 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 13:48:34,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 13:48:34,562 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2024-11-08 13:48:34,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 13:48:34,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862602357] [2024-11-08 13:48:34,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 13:48:34,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 13:48:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 13:48:34,650 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 13:48:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 13:48:34,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 13:48:34,721 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 13:48:34,722 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 13:48:34,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 13:48:34,729 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 13:48:34,763 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 13:48:34,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 01:48:34 BoogieIcfgContainer [2024-11-08 13:48:34,766 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 13:48:34,767 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 13:48:34,767 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 13:48:34,767 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 13:48:34,768 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 01:48:34" (3/4) ... [2024-11-08 13:48:34,770 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 13:48:34,808 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 13:48:34,808 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 13:48:34,809 INFO L158 Benchmark]: Toolchain (without parser) took 943.50ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 93.0MB in the beginning and 168.8MB in the end (delta: -75.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 13:48:34,810 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 144.7MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 13:48:34,810 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.83ms. Allocated memory is still 144.7MB. Free memory was 93.0MB in the beginning and 81.2MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 13:48:34,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.82ms. Allocated memory is still 144.7MB. Free memory was 81.2MB in the beginning and 79.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 13:48:34,813 INFO L158 Benchmark]: Boogie Preprocessor took 25.73ms. Allocated memory is still 144.7MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 13:48:34,816 INFO L158 Benchmark]: RCFGBuilder took 294.63ms. Allocated memory is still 144.7MB. Free memory was 77.9MB in the beginning and 68.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 13:48:34,817 INFO L158 Benchmark]: TraceAbstraction took 306.33ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 67.5MB in the beginning and 171.8MB in the end (delta: -104.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 13:48:34,817 INFO L158 Benchmark]: Witness Printer took 41.27ms. Allocated memory is still 201.3MB. Free memory was 171.8MB in the beginning and 168.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 13:48:34,819 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 144.7MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.83ms. Allocated memory is still 144.7MB. Free memory was 93.0MB in the beginning and 81.2MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.82ms. Allocated memory is still 144.7MB. Free memory was 81.2MB in the beginning and 79.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.73ms. Allocated memory is still 144.7MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 294.63ms. Allocated memory is still 144.7MB. Free memory was 77.9MB in the beginning and 68.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 306.33ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 67.5MB in the beginning and 171.8MB in the end (delta: -104.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.27ms. Allocated memory is still 201.3MB. Free memory was 171.8MB in the beginning and 168.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int a, b; [L16] int a, b; [L16] int a, b; [L16] int a, b; VAL [a={4:0}, b={5:0}] [L19] CALL equal(&a, &b) [L7] COND TRUE a != b VAL [a={4:0}, b={5:0}] [L12] reach_error() VAL [a={4:0}, b={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-08 13:48:34,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE