./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cb35da9c160c8cc3a4e8eb0847ad52031566203029d285a75392d741632a8daa --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 09:07:36,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 09:07:36,307 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 09:07:36,312 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 09:07:36,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 09:07:36,337 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 09:07:36,338 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 09:07:36,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 09:07:36,339 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 09:07:36,339 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 09:07:36,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 09:07:36,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 09:07:36,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 09:07:36,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 09:07:36,341 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 09:07:36,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 09:07:36,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 09:07:36,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 09:07:36,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 09:07:36,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 09:07:36,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 09:07:36,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 09:07:36,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 09:07:36,341 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 09:07:36,342 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 09:07:36,342 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 09:07:36,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 09:07:36,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 09:07:36,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 09:07:36,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 09:07:36,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 09:07:36,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 09:07:36,343 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 09:07:36,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 09:07:36,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 09:07:36,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 09:07:36,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 09:07:36,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 09:07:36,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 09:07:36,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 09:07:36,343 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/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 -> cb35da9c160c8cc3a4e8eb0847ad52031566203029d285a75392d741632a8daa [2025-03-08 09:07:36,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 09:07:36,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 09:07:36,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 09:07:36,557 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 09:07:36,557 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 09:07:36,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2025-03-08 09:07:37,678 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8db1fc031/3950570b4d354be7a4e727ff6385b4ab/FLAG65788d3c3 [2025-03-08 09:07:37,912 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 09:07:37,912 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2025-03-08 09:07:37,917 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8db1fc031/3950570b4d354be7a4e727ff6385b4ab/FLAG65788d3c3 [2025-03-08 09:07:38,250 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8db1fc031/3950570b4d354be7a4e727ff6385b4ab [2025-03-08 09:07:38,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 09:07:38,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 09:07:38,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 09:07:38,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 09:07:38,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 09:07:38,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c5b0aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38, skipping insertion in model container [2025-03-08 09:07:38,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 09:07:38,351 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2025-03-08 09:07:38,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 09:07:38,386 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 09:07:38,393 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2025-03-08 09:07:38,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 09:07:38,413 INFO L204 MainTranslator]: Completed translation [2025-03-08 09:07:38,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38 WrapperNode [2025-03-08 09:07:38,414 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 09:07:38,415 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 09:07:38,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 09:07:38,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 09:07:38,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,455 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 151 [2025-03-08 09:07:38,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 09:07:38,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 09:07:38,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 09:07:38,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 09:07:38,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,464 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,475 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]. [2025-03-08 09:07:38,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,481 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,482 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,483 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 09:07:38,487 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 09:07:38,487 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 09:07:38,487 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 09:07:38,488 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (1/1) ... [2025-03-08 09:07:38,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 09:07:38,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 09:07:38,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 09:07:38,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 09:07:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 09:07:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 09:07:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 09:07:38,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 09:07:38,607 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 09:07:38,608 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 09:07:38,954 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2025-03-08 09:07:38,955 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 09:07:38,982 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 09:07:38,982 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 09:07:38,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:07:38 BoogieIcfgContainer [2025-03-08 09:07:38,984 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 09:07:38,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 09:07:38,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 09:07:38,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 09:07:38,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:07:38" (1/3) ... [2025-03-08 09:07:38,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1117c6ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:07:38, skipping insertion in model container [2025-03-08 09:07:38,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:38" (2/3) ... [2025-03-08 09:07:38,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1117c6ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:07:38, skipping insertion in model container [2025-03-08 09:07:38,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:07:38" (3/3) ... [2025-03-08 09:07:38,991 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2025-03-08 09:07:39,000 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 09:07:39,002 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.noninitstate.c that has 1 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 09:07:39,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 09:07:39,044 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;@52efdfb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 09:07:39,044 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 09:07:39,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 50 states have (on average 1.48) internal successors, (74), 51 states have internal predecessors, (74), 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) [2025-03-08 09:07:39,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-08 09:07:39,051 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:07:39,051 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:07:39,051 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:07:39,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:07:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1897669413, now seen corresponding path program 1 times [2025-03-08 09:07:39,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 09:07:39,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866806032] [2025-03-08 09:07:39,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:07:39,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 09:07:39,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-08 09:07:39,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-08 09:07:39,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:07:39,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:07:39,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 09:07:39,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 09:07:39,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866806032] [2025-03-08 09:07:39,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866806032] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:07:39,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:07:39,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 09:07:39,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311022723] [2025-03-08 09:07:39,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:07:39,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 09:07:39,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 09:07:39,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 09:07:39,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 09:07:39,226 INFO L87 Difference]: Start difference. First operand has 52 states, 50 states have (on average 1.48) internal successors, (74), 51 states have internal predecessors, (74), 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 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2025-03-08 09:07:39,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:07:39,266 INFO L93 Difference]: Finished difference Result 87 states and 126 transitions. [2025-03-08 09:07:39,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 09:07:39,268 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2025-03-08 09:07:39,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:07:39,272 INFO L225 Difference]: With dead ends: 87 [2025-03-08 09:07:39,272 INFO L226 Difference]: Without dead ends: 49 [2025-03-08 09:07:39,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 09:07:39,277 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 09:07:39,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 09:07:39,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2025-03-08 09:07:39,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2025-03-08 09:07:39,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4375) internal successors, (69), 48 states have internal predecessors, (69), 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) [2025-03-08 09:07:39,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2025-03-08 09:07:39,307 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 69 transitions. Word has length 17 [2025-03-08 09:07:39,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:07:39,308 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 69 transitions. [2025-03-08 09:07:39,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2025-03-08 09:07:39,308 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions. [2025-03-08 09:07:39,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-08 09:07:39,309 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:07:39,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:07:39,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 09:07:39,310 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:07:39,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:07:39,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1897639622, now seen corresponding path program 1 times [2025-03-08 09:07:39,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 09:07:39,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156831084] [2025-03-08 09:07:39,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:07:39,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 09:07:39,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-08 09:07:39,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-08 09:07:39,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:07:39,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:07:39,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 09:07:39,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 09:07:39,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156831084] [2025-03-08 09:07:39,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156831084] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:07:39,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:07:39,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 09:07:39,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538131142] [2025-03-08 09:07:39,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:07:39,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 09:07:39,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 09:07:39,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 09:07:39,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 09:07:39,672 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2025-03-08 09:07:39,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:07:39,796 INFO L93 Difference]: Finished difference Result 84 states and 118 transitions. [2025-03-08 09:07:39,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 09:07:39,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2025-03-08 09:07:39,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:07:39,797 INFO L225 Difference]: With dead ends: 84 [2025-03-08 09:07:39,798 INFO L226 Difference]: Without dead ends: 49 [2025-03-08 09:07:39,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 09:07:39,799 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 56 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 09:07:39,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 35 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 09:07:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2025-03-08 09:07:39,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2025-03-08 09:07:39,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 48 states have internal predecessors, (67), 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) [2025-03-08 09:07:39,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 67 transitions. [2025-03-08 09:07:39,804 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 67 transitions. Word has length 17 [2025-03-08 09:07:39,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:07:39,805 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 67 transitions. [2025-03-08 09:07:39,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2025-03-08 09:07:39,805 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 67 transitions. [2025-03-08 09:07:39,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-08 09:07:39,805 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:07:39,805 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:07:39,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 09:07:39,805 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:07:39,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:07:39,806 INFO L85 PathProgramCache]: Analyzing trace with hash -950411028, now seen corresponding path program 1 times [2025-03-08 09:07:39,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 09:07:39,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10660492] [2025-03-08 09:07:39,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:07:39,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 09:07:39,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-08 09:07:39,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-08 09:07:39,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:07:39,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 09:07:39,836 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 09:07:39,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-08 09:07:39,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-08 09:07:39,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:07:39,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 09:07:39,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 09:07:39,864 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 09:07:39,865 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 09:07:39,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 09:07:39,869 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-08 09:07:39,880 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-03-08 09:07:39,886 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 09:07:39,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 09:07:39 BoogieIcfgContainer [2025-03-08 09:07:39,891 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 09:07:39,891 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 09:07:39,891 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 09:07:39,891 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 09:07:39,892 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:07:38" (3/4) ... [2025-03-08 09:07:39,894 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 09:07:39,894 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 09:07:39,895 INFO L158 Benchmark]: Toolchain (without parser) took 1642.29ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 67.1MB in the end (delta: 44.2MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2025-03-08 09:07:39,895 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 09:07:39,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.02ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 98.7MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 09:07:39,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.51ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 94.3MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 09:07:39,895 INFO L158 Benchmark]: Boogie Preprocessor took 30.38ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 92.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 09:07:39,896 INFO L158 Benchmark]: IcfgBuilder took 496.91ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 65.2MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 09:07:39,896 INFO L158 Benchmark]: TraceAbstraction took 905.44ms. Allocated memory is still 142.6MB. Free memory was 65.2MB in the beginning and 67.9MB in the end (delta: -2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 09:07:39,896 INFO L158 Benchmark]: Witness Printer took 3.02ms. Allocated memory is still 142.6MB. Free memory was 67.9MB in the beginning and 67.1MB in the end (delta: 817.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 09:07:39,897 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.02ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 98.7MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.51ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 94.3MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.38ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 92.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 496.91ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 65.2MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 905.44ms. Allocated memory is still 142.6MB. Free memory was 65.2MB in the beginning and 67.9MB in the end (delta: -2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.02ms. Allocated memory is still 142.6MB. Free memory was 67.9MB in the beginning and 67.1MB in the end (delta: 817.9kB). 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: 22]: 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 51. Possible FailurePath: [L27] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L28] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L30] const SORT_1 var_10 = 1; [L31] const SORT_1 var_13 = 0; [L33] SORT_1 input_2; [L35] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_10=1, var_13=0] [L35] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, state_3=0, var_10=1, var_13=0] [L36] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L37] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, state_3=0, state_4=0, var_10=1, var_13=0] [L37] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 init_12_arg_1 = var_10; [L40] state_11 = init_12_arg_1 VAL [mask_SORT_1=1, state_11=1, state_3=0, state_4=0, var_13=0] [L43] input_2 = __VERIFIER_nondet_uchar() [L44] EXPR input_2 & mask_SORT_1 VAL [mask_SORT_1=1, state_11=1, state_3=0, state_4=0, var_13=0] [L44] input_2 = input_2 & mask_SORT_1 [L46] SORT_1 var_9_arg_0 = state_3; [L47] SORT_1 var_9_arg_1 = state_4; [L48] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L49] SORT_1 var_15_arg_0 = state_11; [L50] SORT_1 var_15_arg_1 = ~var_9; VAL [input_2=0, mask_SORT_1=1, state_3=0, state_4=0, var_13=0, var_15_arg_0=1, var_15_arg_1=-2, var_9=1] [L51] EXPR var_15_arg_1 & mask_SORT_1 VAL [input_2=0, mask_SORT_1=1, state_3=0, state_4=0, var_13=0, var_15_arg_0=1, var_9=1] [L51] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L52] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L53] SORT_1 constr_16_arg_0 = var_15; [L54] CALL assume_abort_if_not(constr_16_arg_0) [L23] COND FALSE !(!cond) [L54] RET assume_abort_if_not(constr_16_arg_0) [L56] SORT_1 bad_17_arg_0 = var_9; [L57] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L22] COND TRUE !(cond) [L22] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 74 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 78 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 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 [2025-03-08 09:07:39,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cb35da9c160c8cc3a4e8eb0847ad52031566203029d285a75392d741632a8daa --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 09:07:41,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 09:07:41,763 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-03-08 09:07:41,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 09:07:41,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 09:07:41,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 09:07:41,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 09:07:41,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 09:07:41,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 09:07:41,787 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 09:07:41,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 09:07:41,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 09:07:41,787 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 09:07:41,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 09:07:41,788 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 09:07:41,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 09:07:41,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 09:07:41,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 09:07:41,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 09:07:41,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 09:07:41,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 09:07:41,789 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 09:07:41,789 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 09:07:41,789 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 09:07:41,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 09:07:41,789 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 09:07:41,789 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 09:07:41,789 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 09:07:41,789 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 09:07:41,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 09:07:41,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 09:07:41,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 09:07:41,790 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 09:07:41,790 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 09:07:41,790 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 09:07:41,790 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 09:07:41,791 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 09:07:41,791 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 09:07:41,791 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 09:07:41,791 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 09:07:41,791 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 09:07:41,791 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 09:07:41,791 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/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 -> cb35da9c160c8cc3a4e8eb0847ad52031566203029d285a75392d741632a8daa [2025-03-08 09:07:42,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 09:07:42,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 09:07:42,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 09:07:42,039 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 09:07:42,040 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 09:07:42,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2025-03-08 09:07:43,254 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d54d98273/4115d92796684fed9092b87fe8c14f13/FLAG20f8b9f0b [2025-03-08 09:07:43,441 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 09:07:43,442 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2025-03-08 09:07:43,449 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d54d98273/4115d92796684fed9092b87fe8c14f13/FLAG20f8b9f0b [2025-03-08 09:07:43,464 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d54d98273/4115d92796684fed9092b87fe8c14f13 [2025-03-08 09:07:43,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 09:07:43,468 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 09:07:43,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 09:07:43,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 09:07:43,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 09:07:43,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fcae50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43, skipping insertion in model container [2025-03-08 09:07:43,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,491 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 09:07:43,598 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2025-03-08 09:07:43,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 09:07:43,638 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 09:07:43,649 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2025-03-08 09:07:43,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 09:07:43,669 INFO L204 MainTranslator]: Completed translation [2025-03-08 09:07:43,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43 WrapperNode [2025-03-08 09:07:43,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 09:07:43,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 09:07:43,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 09:07:43,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 09:07:43,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,683 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,695 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2025-03-08 09:07:43,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 09:07:43,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 09:07:43,696 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 09:07:43,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 09:07:43,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,704 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,714 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]. [2025-03-08 09:07:43,714 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,715 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,719 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 09:07:43,722 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 09:07:43,723 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 09:07:43,723 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 09:07:43,723 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (1/1) ... [2025-03-08 09:07:43,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 09:07:43,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 09:07:43,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 09:07:43,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 09:07:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 09:07:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 09:07:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 09:07:43,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 09:07:43,814 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 09:07:43,815 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 09:07:43,942 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-03-08 09:07:43,943 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 09:07:43,949 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 09:07:43,949 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 09:07:43,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:07:43 BoogieIcfgContainer [2025-03-08 09:07:43,950 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 09:07:43,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 09:07:43,955 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 09:07:43,958 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 09:07:43,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:07:43" (1/3) ... [2025-03-08 09:07:43,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aeed7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:07:43, skipping insertion in model container [2025-03-08 09:07:43,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:07:43" (2/3) ... [2025-03-08 09:07:43,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aeed7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:07:43, skipping insertion in model container [2025-03-08 09:07:43,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:07:43" (3/3) ... [2025-03-08 09:07:43,961 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2025-03-08 09:07:43,972 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 09:07:43,973 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.noninitstate.c that has 1 procedures, 12 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 09:07:44,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 09:07:44,018 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;@7f1d7042, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 09:07:44,019 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 09:07:44,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) [2025-03-08 09:07:44,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-08 09:07:44,027 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:07:44,027 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:07:44,028 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:07:44,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:07:44,033 INFO L85 PathProgramCache]: Analyzing trace with hash 749440841, now seen corresponding path program 1 times [2025-03-08 09:07:44,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 09:07:44,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1511474431] [2025-03-08 09:07:44,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:07:44,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 09:07:44,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 09:07:44,045 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 09:07:44,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 09:07:44,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-08 09:07:44,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-08 09:07:44,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:07:44,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:07:44,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 09:07:44,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 09:07:44,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 09:07:44,125 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 09:07:44,125 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 09:07:44,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511474431] [2025-03-08 09:07:44,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511474431] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:07:44,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:07:44,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 09:07:44,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656768702] [2025-03-08 09:07:44,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:07:44,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 09:07:44,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 09:07:44,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 09:07:44,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 09:07:44,145 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2025-03-08 09:07:44,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:07:44,152 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2025-03-08 09:07:44,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 09:07:44,153 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2025-03-08 09:07:44,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:07:44,157 INFO L225 Difference]: With dead ends: 19 [2025-03-08 09:07:44,158 INFO L226 Difference]: Without dead ends: 9 [2025-03-08 09:07:44,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 09:07:44,163 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 09:07:44,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 09:07:44,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-03-08 09:07:44,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-03-08 09:07:44,182 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) [2025-03-08 09:07:44,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2025-03-08 09:07:44,186 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2025-03-08 09:07:44,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:07:44,186 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2025-03-08 09:07:44,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2025-03-08 09:07:44,187 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2025-03-08 09:07:44,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-08 09:07:44,187 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:07:44,187 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:07:44,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 09:07:44,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 09:07:44,391 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:07:44,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:07:44,393 INFO L85 PathProgramCache]: Analyzing trace with hash 749470632, now seen corresponding path program 1 times [2025-03-08 09:07:44,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 09:07:44,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774989520] [2025-03-08 09:07:44,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:07:44,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 09:07:44,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 09:07:44,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 09:07:44,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 09:07:44,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-08 09:07:44,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-08 09:07:44,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:07:44,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:07:44,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-08 09:07:44,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 09:07:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 09:07:44,640 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 09:07:44,640 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 09:07:44,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774989520] [2025-03-08 09:07:44,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774989520] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:07:44,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:07:44,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 09:07:44,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968287480] [2025-03-08 09:07:44,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:07:44,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 09:07:44,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 09:07:44,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 09:07:44,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 09:07:44,642 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2025-03-08 09:07:44,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:07:44,673 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2025-03-08 09:07:44,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 09:07:44,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 7 [2025-03-08 09:07:44,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:07:44,673 INFO L225 Difference]: With dead ends: 15 [2025-03-08 09:07:44,674 INFO L226 Difference]: Without dead ends: 13 [2025-03-08 09:07:44,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 09:07:44,674 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 09:07:44,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 09:07:44,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-03-08 09:07:44,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-03-08 09:07:44,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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) [2025-03-08 09:07:44,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2025-03-08 09:07:44,679 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2025-03-08 09:07:44,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:07:44,679 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2025-03-08 09:07:44,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2025-03-08 09:07:44,679 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2025-03-08 09:07:44,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-08 09:07:44,680 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:07:44,680 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-08 09:07:44,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 09:07:44,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 09:07:44,881 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:07:44,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:07:44,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1311259747, now seen corresponding path program 1 times [2025-03-08 09:07:44,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 09:07:44,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [431194219] [2025-03-08 09:07:44,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:07:44,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 09:07:44,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 09:07:44,884 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 09:07:44,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 09:07:44,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-08 09:07:44,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-08 09:07:44,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:07:44,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 09:07:44,942 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 09:07:44,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-08 09:07:44,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-08 09:07:44,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:07:44,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 09:07:44,978 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-08 09:07:44,978 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 09:07:44,979 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 09:07:44,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 09:07:45,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 09:07:45,183 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-08 09:07:45,192 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-03-08 09:07:45,192 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-03-08 09:07:45,195 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 09:07:45,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 09:07:45 BoogieIcfgContainer [2025-03-08 09:07:45,197 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 09:07:45,198 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 09:07:45,198 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 09:07:45,198 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 09:07:45,198 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:07:43" (3/4) ... [2025-03-08 09:07:45,199 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-08 09:07:45,201 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-03-08 09:07:45,201 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-03-08 09:07:45,231 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 12. [2025-03-08 09:07:45,270 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 09:07:45,271 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 09:07:45,271 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 09:07:45,271 INFO L158 Benchmark]: Toolchain (without parser) took 1802.97ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 57.9MB in the end (delta: 34.3MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2025-03-08 09:07:45,271 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.1MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 09:07:45,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.27ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 80.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 09:07:45,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.23ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 09:07:45,272 INFO L158 Benchmark]: Boogie Preprocessor took 25.83ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 77.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 09:07:45,272 INFO L158 Benchmark]: IcfgBuilder took 227.29ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 64.3MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 09:07:45,272 INFO L158 Benchmark]: TraceAbstraction took 1242.28ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 63.3MB in the end (delta: 418.1kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2025-03-08 09:07:45,272 INFO L158 Benchmark]: Witness Printer took 73.06ms. Allocated memory is still 117.4MB. Free memory was 63.3MB in the beginning and 57.9MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 09:07:45,273 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.1MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.27ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 80.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.23ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.83ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 77.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 227.29ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 64.3MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1242.28ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 63.3MB in the end (delta: 418.1kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 73.06ms. Allocated memory is still 117.4MB. Free memory was 63.3MB in the beginning and 57.9MB in the end (delta: 5.4MB). 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 - CounterExampleResult [Line: 22]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L27] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L28] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L30] const SORT_1 var_10 = 1; [L31] const SORT_1 var_13 = 0; [L33] SORT_1 input_2; [L35] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L37] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 init_12_arg_1 = var_10; [L40] state_11 = init_12_arg_1 VAL [mask_SORT_1=1, state_11=1, state_3=0, state_4=1, var_13=0] [L43] input_2 = __VERIFIER_nondet_uchar() [L44] input_2 = input_2 & mask_SORT_1 [L46] SORT_1 var_9_arg_0 = state_3; [L47] SORT_1 var_9_arg_1 = state_4; [L48] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L49] SORT_1 var_15_arg_0 = state_11; [L50] SORT_1 var_15_arg_1 = ~var_9; [L51] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L52] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L53] SORT_1 constr_16_arg_0 = var_15; [L54] CALL assume_abort_if_not(constr_16_arg_0) [L23] COND FALSE !(!cond) [L54] RET assume_abort_if_not(constr_16_arg_0) [L56] SORT_1 bad_17_arg_0 = var_9; [L57] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L22] COND FALSE !(!(cond)) [L57] RET __VERIFIER_assert(!(bad_17_arg_0)) [L59] SORT_1 var_5_arg_0 = ~input_2; [L60] var_5_arg_0 = var_5_arg_0 & mask_SORT_1 [L61] SORT_1 var_5_arg_1 = ~state_3; [L62] var_5_arg_1 = var_5_arg_1 & mask_SORT_1 [L63] SORT_1 var_5_arg_2 = state_3; [L64] SORT_1 var_5 = var_5_arg_0 ? var_5_arg_1 : var_5_arg_2; [L65] var_5 = var_5 & mask_SORT_1 [L66] SORT_1 next_7_arg_1 = var_5; [L67] SORT_1 var_6_arg_0 = input_2; [L68] SORT_1 var_6_arg_1 = ~state_4; [L69] var_6_arg_1 = var_6_arg_1 & mask_SORT_1 [L70] SORT_1 var_6_arg_2 = state_4; [L71] SORT_1 var_6 = var_6_arg_0 ? var_6_arg_1 : var_6_arg_2; [L72] var_6 = var_6 & mask_SORT_1 [L73] SORT_1 next_8_arg_1 = var_6; [L74] SORT_1 next_14_arg_1 = var_13; [L76] state_3 = next_7_arg_1 [L77] state_4 = next_8_arg_1 [L78] state_11 = next_14_arg_1 [L43] input_2 = __VERIFIER_nondet_uchar() [L44] input_2 = input_2 & mask_SORT_1 [L46] SORT_1 var_9_arg_0 = state_3; [L47] SORT_1 var_9_arg_1 = state_4; [L48] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L49] SORT_1 var_15_arg_0 = state_11; [L50] SORT_1 var_15_arg_1 = ~var_9; [L51] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L52] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L53] SORT_1 constr_16_arg_0 = var_15; [L54] CALL assume_abort_if_not(constr_16_arg_0) [L23] COND FALSE !(!cond) [L54] RET assume_abort_if_not(constr_16_arg_0) [L56] SORT_1 bad_17_arg_0 = var_9; [L57] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L22] COND TRUE !(cond) [L22] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 14 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=2, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 1 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 17 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 proved your program to be incorrect! [2025-03-08 09:07:45,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE