./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_buf_bug.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_buf_bug.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 96058a095f9d265f7ac6ab6bbcbacfbf0dd6452c382f47776ac7601de251f0e4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 20:13:27,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 20:13:27,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-05 20:13:27,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 20:13:27,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 20:13:27,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 20:13:27,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 20:13:27,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 20:13:27,973 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 20:13:27,974 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 20:13:27,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 20:13:27,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 20:13:27,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 20:13:27,975 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 20:13:27,975 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 20:13:27,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 20:13:27,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 20:13:27,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 20:13:27,976 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 20:13:27,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 20:13:27,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 20:13:27,977 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 20:13:27,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 20:13:27,977 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 20:13:27,977 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 20:13:27,977 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 20:13:27,977 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 20:13:27,977 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96058a095f9d265f7ac6ab6bbcbacfbf0dd6452c382f47776ac7601de251f0e4 [2025-02-05 20:13:28,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 20:13:28,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 20:13:28,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 20:13:28,265 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 20:13:28,265 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 20:13:28,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_buf_bug.c [2025-02-05 20:13:29,582 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/202f4afc6/ddccdacdfb5b4515b0d95ea3dcc00b32/FLAGeecd048ab [2025-02-05 20:13:29,938 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 20:13:29,939 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_buf_bug.c [2025-02-05 20:13:29,962 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/202f4afc6/ddccdacdfb5b4515b0d95ea3dcc00b32/FLAGeecd048ab [2025-02-05 20:13:29,983 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/202f4afc6/ddccdacdfb5b4515b0d95ea3dcc00b32 [2025-02-05 20:13:29,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 20:13:29,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 20:13:29,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 20:13:29,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 20:13:29,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 20:13:29,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 08:13:29" (1/1) ... [2025-02-05 20:13:29,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16a0cc83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:29, skipping insertion in model container [2025-02-05 20:13:29,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 08:13:29" (1/1) ... [2025-02-05 20:13:30,053 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 20:13:30,243 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_buf_bug.c[1258,1271] [2025-02-05 20:13:30,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 20:13:30,569 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 20:13:30,578 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_buf_bug.c[1258,1271] [2025-02-05 20:13:30,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 20:13:30,762 INFO L204 MainTranslator]: Completed translation [2025-02-05 20:13:30,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30 WrapperNode [2025-02-05 20:13:30,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 20:13:30,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 20:13:30,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 20:13:30,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 20:13:30,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (1/1) ... [2025-02-05 20:13:30,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (1/1) ... [2025-02-05 20:13:31,073 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3295 [2025-02-05 20:13:31,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 20:13:31,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 20:13:31,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 20:13:31,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 20:13:31,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (1/1) ... [2025-02-05 20:13:31,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (1/1) ... [2025-02-05 20:13:31,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (1/1) ... [2025-02-05 20:13:31,293 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-05 20:13:31,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (1/1) ... [2025-02-05 20:13:31,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (1/1) ... [2025-02-05 20:13:31,367 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (1/1) ... [2025-02-05 20:13:31,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (1/1) ... [2025-02-05 20:13:31,404 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (1/1) ... [2025-02-05 20:13:31,422 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (1/1) ... [2025-02-05 20:13:31,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 20:13:31,466 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 20:13:31,467 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 20:13:31,467 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 20:13:31,468 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (1/1) ... [2025-02-05 20:13:31,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 20:13:31,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 20:13:31,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 20:13:31,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 20:13:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 20:13:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 20:13:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 20:13:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 20:13:31,943 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 20:13:31,945 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 20:13:34,775 INFO L? ?]: Removed 2294 outVars from TransFormulas that were not future-live. [2025-02-05 20:13:34,775 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 20:13:34,899 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 20:13:34,899 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 20:13:34,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 08:13:34 BoogieIcfgContainer [2025-02-05 20:13:34,900 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 20:13:34,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 20:13:34,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 20:13:34,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 20:13:34,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 08:13:29" (1/3) ... [2025-02-05 20:13:34,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff4337c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 08:13:34, skipping insertion in model container [2025-02-05 20:13:34,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:30" (2/3) ... [2025-02-05 20:13:34,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff4337c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 08:13:34, skipping insertion in model container [2025-02-05 20:13:34,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 08:13:34" (3/3) ... [2025-02-05 20:13:34,913 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_buf_bug.c [2025-02-05 20:13:34,930 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 20:13:34,932 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_buf_bug.c that has 1 procedures, 702 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 20:13:35,013 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 20:13:35,027 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;@1061883c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 20:13:35,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 20:13:35,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 702 states, 700 states have (on average 1.4985714285714287) internal successors, (1049), 701 states have internal predecessors, (1049), 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) [2025-02-05 20:13:35,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-02-05 20:13:35,043 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:13:35,044 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:13:35,044 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:13:35,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:13:35,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2067313427, now seen corresponding path program 1 times [2025-02-05 20:13:35,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:13:35,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665370166] [2025-02-05 20:13:35,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:13:35,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:13:35,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-05 20:13:35,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-05 20:13:35,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:13:35,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:13:36,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 20:13:36,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:13:36,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665370166] [2025-02-05 20:13:36,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665370166] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:13:36,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:13:36,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 20:13:36,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414257609] [2025-02-05 20:13:36,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:13:36,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 20:13:36,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:13:36,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 20:13:36,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 20:13:36,051 INFO L87 Difference]: Start difference. First operand has 702 states, 700 states have (on average 1.4985714285714287) internal successors, (1049), 701 states have internal predecessors, (1049), 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) Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2025-02-05 20:13:36,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:13:36,653 INFO L93 Difference]: Finished difference Result 1327 states and 1986 transitions. [2025-02-05 20:13:36,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 20:13:36,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) Word has length 47 [2025-02-05 20:13:36,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:13:36,665 INFO L225 Difference]: With dead ends: 1327 [2025-02-05 20:13:36,665 INFO L226 Difference]: Without dead ends: 699 [2025-02-05 20:13:36,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 20:13:36,672 INFO L435 NwaCegarLoop]: 841 mSDtfsCounter, 1005 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 20:13:36,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 1681 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 20:13:36,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2025-02-05 20:13:36,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2025-02-05 20:13:36,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.494269340974212) internal successors, (1043), 698 states have internal predecessors, (1043), 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) [2025-02-05 20:13:36,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1043 transitions. [2025-02-05 20:13:36,767 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1043 transitions. Word has length 47 [2025-02-05 20:13:36,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:13:36,768 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 1043 transitions. [2025-02-05 20:13:36,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2025-02-05 20:13:36,770 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1043 transitions. [2025-02-05 20:13:36,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-05 20:13:36,771 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:13:36,771 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:13:36,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 20:13:36,773 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:13:36,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:13:36,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2026912164, now seen corresponding path program 1 times [2025-02-05 20:13:36,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:13:36,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295999686] [2025-02-05 20:13:36,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:13:36,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:13:36,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-05 20:13:36,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-05 20:13:36,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:13:36,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:13:37,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 20:13:37,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 20:13:37,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295999686] [2025-02-05 20:13:37,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295999686] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:13:37,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:13:37,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 20:13:37,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057375715] [2025-02-05 20:13:37,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:13:37,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 20:13:37,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 20:13:37,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 20:13:37,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 20:13:37,086 INFO L87 Difference]: Start difference. First operand 699 states and 1043 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2025-02-05 20:13:37,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:13:37,490 INFO L93 Difference]: Finished difference Result 703 states and 1047 transitions. [2025-02-05 20:13:37,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 20:13:37,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) Word has length 49 [2025-02-05 20:13:37,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:13:37,494 INFO L225 Difference]: With dead ends: 703 [2025-02-05 20:13:37,494 INFO L226 Difference]: Without dead ends: 701 [2025-02-05 20:13:37,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 20:13:37,498 INFO L435 NwaCegarLoop]: 868 mSDtfsCounter, 0 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2599 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 20:13:37,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2599 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 20:13:37,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2025-02-05 20:13:37,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2025-02-05 20:13:37,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 700 states have (on average 1.4928571428571429) internal successors, (1045), 700 states have internal predecessors, (1045), 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) [2025-02-05 20:13:37,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1045 transitions. [2025-02-05 20:13:37,528 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1045 transitions. Word has length 49 [2025-02-05 20:13:37,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:13:37,529 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 1045 transitions. [2025-02-05 20:13:37,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2025-02-05 20:13:37,529 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1045 transitions. [2025-02-05 20:13:37,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-05 20:13:37,532 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:13:37,532 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 20:13:37,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 20:13:37,532 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:13:37,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:13:37,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1585552147, now seen corresponding path program 1 times [2025-02-05 20:13:37,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 20:13:37,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050338501] [2025-02-05 20:13:37,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:13:37,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 20:13:37,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-05 20:13:37,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-05 20:13:37,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:13:37,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 20:13:37,603 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-05 20:13:37,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-05 20:13:37,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-05 20:13:37,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:13:37,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 20:13:37,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-05 20:13:37,715 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-05 20:13:37,716 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-05 20:13:37,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 20:13:37,721 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-05 20:13:37,770 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-02-05 20:13:37,789 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 20:13:37,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 08:13:37 BoogieIcfgContainer [2025-02-05 20:13:37,792 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 20:13:37,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 20:13:37,794 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 20:13:37,794 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 20:13:37,795 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 08:13:34" (3/4) ... [2025-02-05 20:13:37,798 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-05 20:13:37,798 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 20:13:37,799 INFO L158 Benchmark]: Toolchain (without parser) took 7812.68ms. Allocated memory was 167.8MB in the beginning and 377.5MB in the end (delta: 209.7MB). Free memory was 129.8MB in the beginning and 95.4MB in the end (delta: 34.4MB). Peak memory consumption was 242.3MB. Max. memory is 16.1GB. [2025-02-05 20:13:37,799 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 20:13:37,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 775.15ms. Allocated memory is still 167.8MB. Free memory was 129.8MB in the beginning and 60.1MB in the end (delta: 69.7MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2025-02-05 20:13:37,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 310.37ms. Allocated memory is still 167.8MB. Free memory was 59.7MB in the beginning and 65.2MB in the end (delta: -5.6MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2025-02-05 20:13:37,801 INFO L158 Benchmark]: Boogie Preprocessor took 390.04ms. Allocated memory is still 167.8MB. Free memory was 65.2MB in the beginning and 63.0MB in the end (delta: 2.3MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2025-02-05 20:13:37,801 INFO L158 Benchmark]: IcfgBuilder took 3433.83ms. Allocated memory was 167.8MB in the beginning and 377.5MB in the end (delta: 209.7MB). Free memory was 63.0MB in the beginning and 159.6MB in the end (delta: -96.6MB). Peak memory consumption was 205.7MB. Max. memory is 16.1GB. [2025-02-05 20:13:37,802 INFO L158 Benchmark]: TraceAbstraction took 2887.44ms. Allocated memory is still 377.5MB. Free memory was 159.6MB in the beginning and 95.4MB in the end (delta: 64.2MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2025-02-05 20:13:37,803 INFO L158 Benchmark]: Witness Printer took 5.67ms. Allocated memory is still 377.5MB. Free memory was 95.4MB in the beginning and 95.4MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 20:13:37,804 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 775.15ms. Allocated memory is still 167.8MB. Free memory was 129.8MB in the beginning and 60.1MB in the end (delta: 69.7MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 310.37ms. Allocated memory is still 167.8MB. Free memory was 59.7MB in the beginning and 65.2MB in the end (delta: -5.6MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 390.04ms. Allocated memory is still 167.8MB. Free memory was 65.2MB in the beginning and 63.0MB in the end (delta: 2.3MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * IcfgBuilder took 3433.83ms. Allocated memory was 167.8MB in the beginning and 377.5MB in the end (delta: 209.7MB). Free memory was 63.0MB in the beginning and 159.6MB in the end (delta: -96.6MB). Peak memory consumption was 205.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2887.44ms. Allocated memory is still 377.5MB. Free memory was 159.6MB in the beginning and 95.4MB in the end (delta: 64.2MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. * Witness Printer took 5.67ms. Allocated memory is still 377.5MB. Free memory was 95.4MB in the beginning and 95.4MB in the end (delta: 31.7kB). 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: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 149. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 4); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (4 - 1); [L32] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 5); [L33] const SORT_7 msb_SORT_7 = (SORT_7)1 << (5 - 1); [L35] const SORT_22 mask_SORT_22 = (SORT_22)-1 >> (sizeof(SORT_22) * 8 - 32); [L36] const SORT_22 msb_SORT_22 = (SORT_22)1 << (32 - 1); [L38] const SORT_7 var_8 = 0; [L39] const SORT_7 var_11 = 16; [L40] const SORT_1 var_15 = 1; [L41] const SORT_1 var_19 = 0; [L42] const SORT_22 var_23 = 0; [L43] const SORT_22 var_24 = 15; [L44] const SORT_22 var_74 = 14; [L45] const SORT_22 var_92 = 13; [L46] const SORT_22 var_110 = 12; [L47] const SORT_22 var_128 = 11; [L48] const SORT_22 var_146 = 10; [L49] const SORT_22 var_164 = 9; [L50] const SORT_22 var_182 = 8; [L51] const SORT_22 var_200 = 7; [L52] const SORT_22 var_218 = 6; [L53] const SORT_22 var_236 = 5; [L54] const SORT_22 var_254 = 4; [L55] const SORT_22 var_272 = 3; [L56] const SORT_22 var_290 = 2; [L57] const SORT_22 var_308 = 1; [L58] const SORT_22 var_350 = 16; [L59] const SORT_4 var_356 = 0; [L61] SORT_1 input_2; [L62] SORT_1 input_3; [L63] SORT_4 input_5; [L64] SORT_1 input_6; [L65] SORT_1 input_345; [L66] SORT_4 input_347; [L67] SORT_1 input_386; [L68] SORT_4 input_388; [L69] SORT_1 input_404; [L70] SORT_4 input_408; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_7 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L72] SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L73] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L74] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L75] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L76] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L77] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L78] SORT_1 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L79] SORT_1 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L80] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L81] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L82] SORT_1 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L83] SORT_1 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L84] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L85] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L86] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L87] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L88] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_8=0, var_92=13] [L89] SORT_1 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] SORT_7 init_10_arg_1 = var_8; [L92] state_9 = init_10_arg_1 [L93] SORT_1 init_21_arg_1 = var_19; [L94] state_20 = init_21_arg_1 [L95] SORT_1 init_26_arg_1 = var_19; [L96] state_25 = init_26_arg_1 [L97] SORT_1 init_28_arg_1 = var_19; [L98] state_27 = init_28_arg_1 [L99] SORT_1 init_31_arg_1 = var_19; [L100] state_30 = init_31_arg_1 [L101] SORT_1 init_33_arg_1 = var_19; [L102] state_32 = init_33_arg_1 [L103] SORT_1 init_37_arg_1 = var_19; [L104] state_36 = init_37_arg_1 [L105] SORT_1 init_39_arg_1 = var_19; [L106] state_38 = init_39_arg_1 [L107] SORT_1 init_42_arg_1 = var_19; [L108] state_41 = init_42_arg_1 [L109] SORT_1 init_44_arg_1 = var_19; [L110] state_43 = init_44_arg_1 [L111] SORT_1 init_49_arg_1 = var_19; [L112] state_48 = init_49_arg_1 [L113] SORT_1 init_51_arg_1 = var_19; [L114] state_50 = init_51_arg_1 [L115] SORT_1 init_54_arg_1 = var_19; [L116] state_53 = init_54_arg_1 [L117] SORT_1 init_56_arg_1 = var_19; [L118] state_55 = init_56_arg_1 [L119] SORT_1 init_60_arg_1 = var_19; [L120] state_59 = init_60_arg_1 [L121] SORT_1 init_62_arg_1 = var_19; [L122] state_61 = init_62_arg_1 [L123] SORT_1 init_65_arg_1 = var_19; [L124] state_64 = init_65_arg_1 [L125] SORT_1 init_67_arg_1 = var_19; [L126] state_66 = init_67_arg_1 VAL [mask_SORT_1=1, mask_SORT_7=31, state_20=0, state_25=0, state_27=0, state_30=0, state_32=0, state_36=0, state_38=0, state_41=0, state_43=0, state_48=0, state_50=0, state_53=0, state_55=0, state_59=0, state_61=0, state_64=0, state_66=0, state_9=0, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_92=13] [L129] input_2 = __VERIFIER_nondet_uchar() [L130] input_3 = __VERIFIER_nondet_uchar() [L131] input_5 = __VERIFIER_nondet_uchar() [L132] input_6 = __VERIFIER_nondet_uchar() [L133] EXPR input_6 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_7=31, state_20=0, state_25=0, state_27=0, state_30=0, state_32=0, state_36=0, state_38=0, state_41=0, state_43=0, state_48=0, state_50=0, state_53=0, state_55=0, state_59=0, state_61=0, state_64=0, state_66=0, state_9=0, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_92=13] [L133] input_6 = input_6 & mask_SORT_1 [L134] input_345 = __VERIFIER_nondet_uchar() [L135] input_347 = __VERIFIER_nondet_uchar() [L136] input_386 = __VERIFIER_nondet_uchar() [L137] input_388 = __VERIFIER_nondet_uchar() [L138] input_404 = __VERIFIER_nondet_uchar() [L139] input_408 = __VERIFIER_nondet_uchar() [L142] SORT_7 var_12_arg_0 = state_9; [L143] SORT_7 var_12_arg_1 = var_11; [L144] SORT_1 var_12 = var_12_arg_0 <= var_12_arg_1; [L145] SORT_1 var_16_arg_0 = var_12; [L146] SORT_1 var_16 = ~var_16_arg_0; [L147] SORT_1 var_17_arg_0 = var_15; [L148] SORT_1 var_17_arg_1 = var_16; VAL [input_6=0, mask_SORT_1=1, mask_SORT_7=31, state_20=0, state_25=0, state_27=0, state_30=0, state_32=0, state_36=0, state_38=0, state_41=0, state_43=0, state_48=0, state_50=0, state_53=0, state_55=0, state_59=0, state_61=0, state_64=0, state_66=0, state_9=0, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_17_arg_0=1, var_17_arg_1=-2, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_92=13] [L149] EXPR var_17_arg_0 & var_17_arg_1 VAL [input_6=0, mask_SORT_1=1, mask_SORT_7=31, state_20=0, state_25=0, state_27=0, state_30=0, state_32=0, state_36=0, state_38=0, state_41=0, state_43=0, state_48=0, state_50=0, state_53=0, state_55=0, state_59=0, state_61=0, state_64=0, state_66=0, state_9=0, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_92=13] [L149] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L150] EXPR var_17 & mask_SORT_1 VAL [input_6=0, mask_SORT_1=1, mask_SORT_7=31, state_20=0, state_25=0, state_27=0, state_30=0, state_32=0, state_36=0, state_38=0, state_41=0, state_43=0, state_48=0, state_50=0, state_53=0, state_55=0, state_59=0, state_61=0, state_64=0, state_66=0, state_9=0, var_110=12, var_11=16, var_128=11, var_146=10, var_15=1, var_164=9, var_182=8, var_19=0, var_200=7, var_218=6, var_236=5, var_23=0, var_24=15, var_254=4, var_272=3, var_290=2, var_308=1, var_350=16, var_356=0, var_74=14, var_92=13] [L150] var_17 = var_17 & mask_SORT_1 [L151] SORT_1 bad_18_arg_0 = var_17; [L152] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 702 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1005 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1005 mSDsluCounter, 4280 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2571 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 932 IncrementalHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 1709 mSDtfsCounter, 932 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=702occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 190 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-05 20:13:37,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_buf_bug.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 96058a095f9d265f7ac6ab6bbcbacfbf0dd6452c382f47776ac7601de251f0e4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 20:13:40,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 20:13:40,256 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-02-05 20:13:40,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 20:13:40,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 20:13:40,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 20:13:40,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 20:13:40,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 20:13:40,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 20:13:40,299 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 20:13:40,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 20:13:40,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 20:13:40,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 20:13:40,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 20:13:40,301 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 20:13:40,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 20:13:40,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 20:13:40,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 20:13:40,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 20:13:40,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 20:13:40,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 20:13:40,302 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-05 20:13:40,302 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-05 20:13:40,302 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-05 20:13:40,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 20:13:40,303 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 20:13:40,303 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 20:13:40,303 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 20:13:40,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 20:13:40,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 20:13:40,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 20:13:40,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 20:13:40,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 20:13:40,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 20:13:40,304 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 20:13:40,304 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 20:13:40,304 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-05 20:13:40,305 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-05 20:13:40,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 20:13:40,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 20:13:40,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 20:13:40,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 20:13:40,305 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96058a095f9d265f7ac6ab6bbcbacfbf0dd6452c382f47776ac7601de251f0e4 [2025-02-05 20:13:40,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 20:13:40,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 20:13:40,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 20:13:40,609 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 20:13:40,609 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 20:13:40,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_buf_bug.c [2025-02-05 20:13:41,938 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/05a23f66b/5f4f8f8951444ceb87bd07f770eb4481/FLAG8d6b29253 [2025-02-05 20:13:42,347 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 20:13:42,351 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_buf_bug.c [2025-02-05 20:13:42,378 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/05a23f66b/5f4f8f8951444ceb87bd07f770eb4481/FLAG8d6b29253 [2025-02-05 20:13:42,400 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/05a23f66b/5f4f8f8951444ceb87bd07f770eb4481 [2025-02-05 20:13:42,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 20:13:42,405 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 20:13:42,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 20:13:42,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 20:13:42,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 20:13:42,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 08:13:42" (1/1) ... [2025-02-05 20:13:42,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281b2fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:42, skipping insertion in model container [2025-02-05 20:13:42,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 08:13:42" (1/1) ... [2025-02-05 20:13:42,472 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 20:13:42,661 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_buf_bug.c[1258,1271] [2025-02-05 20:13:42,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 20:13:42,983 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 20:13:42,993 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_buf_bug.c[1258,1271] [2025-02-05 20:13:43,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 20:13:43,175 INFO L204 MainTranslator]: Completed translation [2025-02-05 20:13:43,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43 WrapperNode [2025-02-05 20:13:43,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 20:13:43,177 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 20:13:43,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 20:13:43,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 20:13:43,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (1/1) ... [2025-02-05 20:13:43,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (1/1) ... [2025-02-05 20:13:43,321 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1911 [2025-02-05 20:13:43,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 20:13:43,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 20:13:43,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 20:13:43,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 20:13:43,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (1/1) ... [2025-02-05 20:13:43,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (1/1) ... [2025-02-05 20:13:43,346 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (1/1) ... [2025-02-05 20:13:43,383 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-05 20:13:43,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (1/1) ... [2025-02-05 20:13:43,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (1/1) ... [2025-02-05 20:13:43,424 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (1/1) ... [2025-02-05 20:13:43,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (1/1) ... [2025-02-05 20:13:43,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (1/1) ... [2025-02-05 20:13:43,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (1/1) ... [2025-02-05 20:13:43,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 20:13:43,468 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 20:13:43,469 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 20:13:43,469 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 20:13:43,470 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (1/1) ... [2025-02-05 20:13:43,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 20:13:43,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 20:13:43,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 20:13:43,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 20:13:43,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 20:13:43,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-05 20:13:43,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 20:13:43,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 20:13:43,881 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 20:13:43,883 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 20:13:50,061 INFO L? ?]: Removed 46 outVars from TransFormulas that were not future-live. [2025-02-05 20:13:50,061 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 20:13:50,071 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 20:13:50,071 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 20:13:50,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 08:13:50 BoogieIcfgContainer [2025-02-05 20:13:50,072 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 20:13:50,075 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 20:13:50,075 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 20:13:50,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 20:13:50,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 08:13:42" (1/3) ... [2025-02-05 20:13:50,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b2b4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 08:13:50, skipping insertion in model container [2025-02-05 20:13:50,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 08:13:43" (2/3) ... [2025-02-05 20:13:50,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b2b4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 08:13:50, skipping insertion in model container [2025-02-05 20:13:50,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 08:13:50" (3/3) ... [2025-02-05 20:13:50,084 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_buf_bug.c [2025-02-05 20:13:50,099 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 20:13:50,101 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_buf_bug.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 20:13:50,148 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 20:13:50,157 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;@69902e21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 20:13:50,157 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 20:13:50,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2025-02-05 20:13:50,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-05 20:13:50,165 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:13:50,165 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-05 20:13:50,165 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:13:50,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:13:50,171 INFO L85 PathProgramCache]: Analyzing trace with hash 38140359, now seen corresponding path program 1 times [2025-02-05 20:13:50,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 20:13:50,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660471277] [2025-02-05 20:13:50,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:13:50,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 20:13:50,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 20:13:50,189 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 20:13:50,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 20:13:50,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-05 20:13:50,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-05 20:13:50,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:13:50,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:13:50,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-05 20:13:50,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 20:13:50,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 20:13:50,840 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 20:13:50,840 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-05 20:13:50,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660471277] [2025-02-05 20:13:50,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660471277] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 20:13:50,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 20:13:50,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 20:13:50,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899787302] [2025-02-05 20:13:50,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 20:13:50,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 20:13:50,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-05 20:13:50,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 20:13:50,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 20:13:50,871 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2025-02-05 20:13:50,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 20:13:50,963 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2025-02-05 20:13:50,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 20:13:50,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2025-02-05 20:13:50,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 20:13:50,973 INFO L225 Difference]: With dead ends: 18 [2025-02-05 20:13:50,974 INFO L226 Difference]: Without dead ends: 10 [2025-02-05 20:13:50,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 20:13:50,980 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 20:13:50,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 20:13:50,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2025-02-05 20:13:51,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2025-02-05 20:13:51,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) 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) [2025-02-05 20:13:51,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2025-02-05 20:13:51,008 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2025-02-05 20:13:51,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 20:13:51,008 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2025-02-05 20:13:51,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2025-02-05 20:13:51,009 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2025-02-05 20:13:51,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-05 20:13:51,009 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 20:13:51,009 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-02-05 20:13:51,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 20:13:51,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 20:13:51,210 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 20:13:51,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 20:13:51,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1926026653, now seen corresponding path program 1 times [2025-02-05 20:13:51,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 20:13:51,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1819524853] [2025-02-05 20:13:51,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 20:13:51,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 20:13:51,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 20:13:51,214 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 20:13:51,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-05 20:13:51,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-05 20:13:51,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-05 20:13:51,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 20:13:51,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 20:13:51,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 54 conjuncts are in the unsatisfiable core [2025-02-05 20:13:51,815 INFO L279 TraceCheckSpWp]: Computing forward predicates...