./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Haystacks-17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/xcsp/Haystacks-17.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9b64cc6095d5436dfbf5be50f666bc80b5fa4a542b4082c7beb316107bdb1f5d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:33:48,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:33:48,181 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:33:48,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:33:48,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:33:48,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:33:48,211 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:33:48,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:33:48,211 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:33:48,211 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:33:48,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:33:48,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:33:48,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:33:48,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:33:48,212 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:33:48,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:33:48,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:33:48,213 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:33:48,213 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:33:48,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:33:48,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:33:48,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:33:48,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:33:48,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:33:48,213 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:33:48,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:33:48,213 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:33:48,213 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:33:48,214 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:33:48,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:33:48,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:33:48,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:33:48,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:33:48,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:33:48,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:33:48,214 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:33:48,214 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:33:48,214 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:33:48,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:33:48,214 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:33:48,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:33:48,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:33:48,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:33:48,215 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b64cc6095d5436dfbf5be50f666bc80b5fa4a542b4082c7beb316107bdb1f5d [2025-02-07 21:33:48,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:33:48,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:33:48,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:33:48,435 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:33:48,435 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:33:48,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Haystacks-17.c [2025-02-07 21:33:49,653 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/68cb83cee/45b25c12e9214033bdcc8db165eb3ecc/FLAGfdee38ff0 [2025-02-07 21:33:49,978 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:33:49,979 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-17.c [2025-02-07 21:33:50,002 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/68cb83cee/45b25c12e9214033bdcc8db165eb3ecc/FLAGfdee38ff0 [2025-02-07 21:33:50,206 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/68cb83cee/45b25c12e9214033bdcc8db165eb3ecc [2025-02-07 21:33:50,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:33:50,208 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:33:50,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:33:50,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:33:50,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:33:50,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:50,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd6af31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50, skipping insertion in model container [2025-02-07 21:33:50,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:50,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:33:50,662 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-17.c[124976,124989] [2025-02-07 21:33:50,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:33:50,693 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:33:50,859 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-17.c[124976,124989] [2025-02-07 21:33:50,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:33:50,885 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:33:50,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50 WrapperNode [2025-02-07 21:33:50,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:33:50,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:33:50,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:33:50,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:33:50,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:50,937 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:51,051 INFO L138 Inliner]: procedures = 13, calls = 3169, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 4623 [2025-02-07 21:33:51,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:33:51,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:33:51,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:33:51,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:33:51,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:51,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:51,083 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:51,123 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 21:33:51,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:51,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:51,156 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:51,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:51,174 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:51,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:51,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:33:51,206 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:33:51,206 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:33:51,206 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:33:51,207 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (1/1) ... [2025-02-07 21:33:51,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:33:51,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:33:51,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 21:33:51,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 21:33:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:33:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:33:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:33:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:33:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2025-02-07 21:33:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2025-02-07 21:33:51,426 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:33:51,427 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:34:05,519 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2025-02-07 21:34:05,519 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:34:05,581 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:34:05,584 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:34:05,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:34:05 BoogieIcfgContainer [2025-02-07 21:34:05,584 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:34:05,586 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:34:05,586 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:34:05,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:34:05,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:33:50" (1/3) ... [2025-02-07 21:34:05,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb59391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:34:05, skipping insertion in model container [2025-02-07 21:34:05,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:50" (2/3) ... [2025-02-07 21:34:05,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb59391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:34:05, skipping insertion in model container [2025-02-07 21:34:05,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:34:05" (3/3) ... [2025-02-07 21:34:05,591 INFO L128 eAbstractionObserver]: Analyzing ICFG Haystacks-17.c [2025-02-07 21:34:05,602 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:34:05,604 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Haystacks-17.c that has 2 procedures, 3460 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-07 21:34:05,753 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:34:05,763 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;@57c340a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:34:05,764 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 21:34:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 3460 states, 295 states have (on average 1.006779661016949) internal successors, (297), 296 states have internal predecessors, (297), 3162 states have call successors, (3162), 1 states have call predecessors, (3162), 1 states have return successors, (3162), 3162 states have call predecessors, (3162), 3162 states have call successors, (3162) [2025-02-07 21:34:07,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16102 [2025-02-07 21:34:07,268 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:34:07,274 INFO L218 NwaCegarLoop]: trace histogram [3162, 3162, 3162, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:34:07,275 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:34:07,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:34:07,285 INFO L85 PathProgramCache]: Analyzing trace with hash 968822335, now seen corresponding path program 1 times [2025-02-07 21:34:07,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:34:07,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520805637] [2025-02-07 21:34:07,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:34:07,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:34:07,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16101 statements into 1 equivalence classes.