./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7c314eef3d472fe4a1a0388d2c5f5a188709ac797267103fd11452d71371ead3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 00:14:04,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 00:14:04,824 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 00:14:04,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 00:14:04,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 00:14:04,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 00:14:04,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 00:14:04,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 00:14:04,861 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 00:14:04,861 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 00:14:04,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 00:14:04,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 00:14:04,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 00:14:04,863 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 00:14:04,863 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 00:14:04,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 00:14:04,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 00:14:04,863 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 00:14:04,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 00:14:04,864 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 00:14:04,864 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 00:14:04,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 00:14:04,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 00:14:04,864 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 00:14:04,864 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 00:14:04,864 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 00:14:04,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 00:14:04,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 00:14:04,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 00:14:04,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 00:14:04,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 00:14:04,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 00:14:04,866 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 00:14:04,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 00:14:04,866 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 00:14:04,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 00:14:04,866 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 00:14:04,866 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 00:14:04,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 00:14:04,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 00:14:04,867 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c314eef3d472fe4a1a0388d2c5f5a188709ac797267103fd11452d71371ead3 [2025-02-08 00:14:05,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 00:14:05,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 00:14:05,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 00:14:05,176 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 00:14:05,176 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 00:14:05,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c [2025-02-08 00:14:06,402 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/804d3d6e4/56afab7257ee4ff5a3aeb7ac6445937f/FLAGab38d5554 [2025-02-08 00:14:06,721 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 00:14:06,722 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c [2025-02-08 00:14:06,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/804d3d6e4/56afab7257ee4ff5a3aeb7ac6445937f/FLAGab38d5554 [2025-02-08 00:14:07,000 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/804d3d6e4/56afab7257ee4ff5a3aeb7ac6445937f [2025-02-08 00:14:07,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 00:14:07,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 00:14:07,008 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 00:14:07,008 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 00:14:07,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 00:14:07,014 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65528a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07, skipping insertion in model container [2025-02-08 00:14:07,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,038 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 00:14:07,159 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c[1260,1273] [2025-02-08 00:14:07,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 00:14:07,231 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 00:14:07,240 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c[1260,1273] [2025-02-08 00:14:07,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 00:14:07,291 INFO L204 MainTranslator]: Completed translation [2025-02-08 00:14:07,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07 WrapperNode [2025-02-08 00:14:07,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 00:14:07,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 00:14:07,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 00:14:07,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 00:14:07,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,347 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 180 [2025-02-08 00:14:07,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 00:14:07,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 00:14:07,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 00:14:07,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 00:14:07,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,369 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,397 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]. [2025-02-08 00:14:07,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,404 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,407 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 00:14:07,412 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 00:14:07,412 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 00:14:07,412 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 00:14:07,413 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (1/1) ... [2025-02-08 00:14:07,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 00:14:07,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 00:14:07,453 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) [2025-02-08 00:14:07,458 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 [2025-02-08 00:14:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 00:14:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 00:14:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 00:14:07,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 00:14:07,564 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 00:14:07,566 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 00:14:07,891 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2025-02-08 00:14:07,893 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 00:14:07,920 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 00:14:07,921 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 00:14:07,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:14:07 BoogieIcfgContainer [2025-02-08 00:14:07,922 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 00:14:07,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 00:14:07,925 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 00:14:07,929 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 00:14:07,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 12:14:07" (1/3) ... [2025-02-08 00:14:07,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aaedd40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:14:07, skipping insertion in model container [2025-02-08 00:14:07,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:07" (2/3) ... [2025-02-08 00:14:07,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aaedd40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:14:07, skipping insertion in model container [2025-02-08 00:14:07,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:14:07" (3/3) ... [2025-02-08 00:14:07,932 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p3.c [2025-02-08 00:14:07,945 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 00:14:07,947 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_vsa16a_p3.c that has 1 procedures, 32 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-08 00:14:07,991 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 00:14:08,001 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;@7c7703dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 00:14:08,001 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 00:14:08,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.5) internal successors, (45), 31 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:08,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 00:14:08,009 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:14:08,009 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:14:08,010 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:14:08,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:14:08,015 INFO L85 PathProgramCache]: Analyzing trace with hash -300456971, now seen corresponding path program 1 times [2025-02-08 00:14:08,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:14:08,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280531188] [2025-02-08 00:14:08,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:14:08,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:14:08,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 00:14:08,152 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 00:14:08,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:14:08,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:14:08,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:14:08,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:14:08,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280531188] [2025-02-08 00:14:08,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280531188] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:14:08,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:14:08,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 00:14:08,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789858709] [2025-02-08 00:14:08,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:14:08,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 00:14:08,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:14:08,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 00:14:08,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:14:08,568 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.5) internal successors, (45), 31 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2025-02-08 00:14:08,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:14:08,633 INFO L93 Difference]: Finished difference Result 59 states and 85 transitions. [2025-02-08 00:14:08,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 00:14:08,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Word has length 14 [2025-02-08 00:14:08,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:14:08,641 INFO L225 Difference]: With dead ends: 59 [2025-02-08 00:14:08,642 INFO L226 Difference]: Without dead ends: 32 [2025-02-08 00:14:08,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:14:08,649 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 00:14:08,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 00:14:08,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-02-08 00:14:08,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2025-02-08 00:14:08,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 31 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:08,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2025-02-08 00:14:08,682 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 14 [2025-02-08 00:14:08,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:14:08,683 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2025-02-08 00:14:08,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2025-02-08 00:14:08,683 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2025-02-08 00:14:08,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-08 00:14:08,685 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:14:08,685 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:14:08,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 00:14:08,686 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:14:08,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:14:08,687 INFO L85 PathProgramCache]: Analyzing trace with hash -719552359, now seen corresponding path program 1 times [2025-02-08 00:14:08,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:14:08,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953051846] [2025-02-08 00:14:08,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:14:08,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:14:08,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 00:14:08,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 00:14:08,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:14:08,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:14:08,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:14:08,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:14:08,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953051846] [2025-02-08 00:14:08,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953051846] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:14:08,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:14:08,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 00:14:08,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5270373] [2025-02-08 00:14:08,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:14:08,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 00:14:08,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:14:08,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 00:14:08,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:14:08,890 INFO L87 Difference]: Start difference. First operand 32 states and 44 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:08,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:14:08,943 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2025-02-08 00:14:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 00:14:08,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2025-02-08 00:14:08,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:14:08,945 INFO L225 Difference]: With dead ends: 61 [2025-02-08 00:14:08,945 INFO L226 Difference]: Without dead ends: 34 [2025-02-08 00:14:08,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:14:08,946 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 00:14:08,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 00:14:08,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-02-08 00:14:08,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-02-08 00:14:08,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.393939393939394) internal successors, (46), 33 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:08,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2025-02-08 00:14:08,951 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 15 [2025-02-08 00:14:08,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:14:08,951 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2025-02-08 00:14:08,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:08,951 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2025-02-08 00:14:08,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-08 00:14:08,951 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:14:08,951 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:14:08,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 00:14:08,952 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:14:08,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:14:08,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1100222576, now seen corresponding path program 1 times [2025-02-08 00:14:08,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:14:08,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493517594] [2025-02-08 00:14:08,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:14:08,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:14:08,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 00:14:08,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 00:14:08,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:14:08,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:14:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:14:09,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:14:09,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493517594] [2025-02-08 00:14:09,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493517594] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:14:09,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:14:09,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 00:14:09,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533396557] [2025-02-08 00:14:09,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:14:09,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 00:14:09,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:14:09,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 00:14:09,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:14:09,317 INFO L87 Difference]: Start difference. First operand 34 states and 46 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:09,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:14:09,363 INFO L93 Difference]: Finished difference Result 63 states and 85 transitions. [2025-02-08 00:14:09,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 00:14:09,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2025-02-08 00:14:09,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:14:09,365 INFO L225 Difference]: With dead ends: 63 [2025-02-08 00:14:09,366 INFO L226 Difference]: Without dead ends: 34 [2025-02-08 00:14:09,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:14:09,367 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 6 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 00:14:09,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 84 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 00:14:09,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-02-08 00:14:09,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-02-08 00:14:09,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:09,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2025-02-08 00:14:09,375 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 16 [2025-02-08 00:14:09,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:14:09,375 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2025-02-08 00:14:09,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:09,376 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2025-02-08 00:14:09,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-02-08 00:14:09,376 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:14:09,376 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:14:09,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 00:14:09,377 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:14:09,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:14:09,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1635523998, now seen corresponding path program 1 times [2025-02-08 00:14:09,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:14:09,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107054150] [2025-02-08 00:14:09,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:14:09,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:14:09,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 00:14:09,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 00:14:09,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:14:09,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:14:09,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:14:09,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:14:09,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107054150] [2025-02-08 00:14:09,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107054150] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:14:09,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:14:09,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 00:14:09,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257893220] [2025-02-08 00:14:09,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:14:09,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 00:14:09,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:14:09,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 00:14:09,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-08 00:14:09,757 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 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) [2025-02-08 00:14:09,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:14:09,924 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2025-02-08 00:14:09,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 00:14:09,924 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 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 [2025-02-08 00:14:09,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:14:09,925 INFO L225 Difference]: With dead ends: 90 [2025-02-08 00:14:09,925 INFO L226 Difference]: Without dead ends: 61 [2025-02-08 00:14:09,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2025-02-08 00:14:09,926 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 103 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 00:14:09,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 155 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 00:14:09,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2025-02-08 00:14:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 43. [2025-02-08 00:14:09,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:09,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2025-02-08 00:14:09,931 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 17 [2025-02-08 00:14:09,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:14:09,931 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2025-02-08 00:14:09,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 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) [2025-02-08 00:14:09,931 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2025-02-08 00:14:09,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 00:14:09,932 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:14:09,932 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:14:09,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 00:14:09,932 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:14:09,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:14:09,933 INFO L85 PathProgramCache]: Analyzing trace with hash -72422506, now seen corresponding path program 1 times [2025-02-08 00:14:09,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:14:09,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631787346] [2025-02-08 00:14:09,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:14:09,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:14:09,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 00:14:09,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 00:14:09,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:14:09,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:14:10,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:14:10,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:14:10,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631787346] [2025-02-08 00:14:10,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631787346] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:14:10,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:14:10,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 00:14:10,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807661390] [2025-02-08 00:14:10,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:14:10,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 00:14:10,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:14:10,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 00:14:10,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-08 00:14:10,369 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:10,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:14:10,564 INFO L93 Difference]: Finished difference Result 90 states and 117 transitions. [2025-02-08 00:14:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 00:14:10,565 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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 18 [2025-02-08 00:14:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:14:10,565 INFO L225 Difference]: With dead ends: 90 [2025-02-08 00:14:10,565 INFO L226 Difference]: Without dead ends: 61 [2025-02-08 00:14:10,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2025-02-08 00:14:10,567 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 97 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 00:14:10,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 141 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 00:14:10,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2025-02-08 00:14:10,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 47. [2025-02-08 00:14:10,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 46 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:10,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2025-02-08 00:14:10,575 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 18 [2025-02-08 00:14:10,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:14:10,575 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2025-02-08 00:14:10,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:10,575 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2025-02-08 00:14:10,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-08 00:14:10,578 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:14:10,578 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:14:10,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 00:14:10,578 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:14:10,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:14:10,579 INFO L85 PathProgramCache]: Analyzing trace with hash 606112247, now seen corresponding path program 1 times [2025-02-08 00:14:10,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:14:10,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676925233] [2025-02-08 00:14:10,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:14:10,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:14:10,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 00:14:10,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 00:14:10,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:14:10,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 00:14:10,614 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 00:14:10,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 00:14:10,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 00:14:10,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:14:10,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 00:14:10,656 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 00:14:10,659 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 00:14:10,660 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-08 00:14:10,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 00:14:10,665 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-02-08 00:14:10,690 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-02-08 00:14:10,698 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 00:14:10,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 12:14:10 BoogieIcfgContainer [2025-02-08 00:14:10,702 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 00:14:10,702 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 00:14:10,703 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 00:14:10,703 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 00:14:10,703 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:14:07" (3/4) ... [2025-02-08 00:14:10,705 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 00:14:10,706 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 00:14:10,707 INFO L158 Benchmark]: Toolchain (without parser) took 3701.42ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 48.6MB in the end (delta: 59.0MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2025-02-08 00:14:10,707 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:14:10,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.24ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 94.4MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 00:14:10,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.26ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 91.0MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:14:10,708 INFO L158 Benchmark]: Boogie Preprocessor took 63.41ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 89.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:14:10,708 INFO L158 Benchmark]: IcfgBuilder took 510.04ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 66.6MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 00:14:10,708 INFO L158 Benchmark]: TraceAbstraction took 2777.43ms. Allocated memory is still 142.6MB. Free memory was 65.9MB in the beginning and 49.9MB in the end (delta: 16.0MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2025-02-08 00:14:10,708 INFO L158 Benchmark]: Witness Printer took 3.62ms. Allocated memory is still 142.6MB. Free memory was 49.9MB in the beginning and 48.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:14:10,710 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.24ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 94.4MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.26ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 91.0MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.41ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 89.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 510.04ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 66.6MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2777.43ms. Allocated memory is still 142.6MB. Free memory was 65.9MB in the beginning and 49.9MB in the end (delta: 16.0MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Witness Printer took 3.62ms. Allocated memory is still 142.6MB. Free memory was 49.9MB in the beginning and 48.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 98, overapproximation of bitwiseAnd at line 103. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L32] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 3); [L33] const SORT_6 msb_SORT_6 = (SORT_6)1 << (3 - 1); [L35] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 2); [L36] const SORT_12 msb_SORT_12 = (SORT_12)1 << (2 - 1); [L38] const SORT_35 mask_SORT_35 = (SORT_35)-1 >> (sizeof(SORT_35) * 8 - 12); [L39] const SORT_35 msb_SORT_35 = (SORT_35)1 << (12 - 1); [L41] const SORT_6 var_7 = 0; [L42] const SORT_12 var_14 = 0; [L43] const SORT_1 var_19 = 1; [L44] const SORT_6 var_49 = 1; [L45] const SORT_6 var_51 = 4; [L47] SORT_1 input_2; [L48] SORT_3 input_4; [L49] SORT_3 input_5; [L50] SORT_3 input_23; [L51] SORT_3 input_25; [L52] SORT_3 input_27; [L53] SORT_1 input_29; [L54] SORT_3 input_31; [L55] SORT_3 input_33; [L56] SORT_35 input_36; [L57] SORT_35 input_38; [L58] SORT_3 input_40; [L59] SORT_3 input_42; [L60] SORT_3 input_44; [L61] SORT_3 input_46; [L63] EXPR __VERIFIER_nondet_uchar() & mask_SORT_6 VAL [mask_SORT_12=3, mask_SORT_1=1, mask_SORT_6=7, var_14=0, var_19=1, var_49=1, var_51=4, var_7=0] [L63] SORT_6 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L65] SORT_6 init_9_arg_1 = var_7; [L66] state_8 = init_9_arg_1 VAL [mask_SORT_12=3, mask_SORT_1=1, mask_SORT_6=7, state_8=0, var_14=0, var_19=1, var_49=1, var_51=4, var_7=0] [L69] input_2 = __VERIFIER_nondet_uchar() [L70] input_4 = __VERIFIER_nondet_ushort() [L71] input_5 = __VERIFIER_nondet_ushort() [L72] input_23 = __VERIFIER_nondet_ushort() [L73] input_25 = __VERIFIER_nondet_ushort() [L74] input_27 = __VERIFIER_nondet_ushort() [L75] input_29 = __VERIFIER_nondet_uchar() [L76] input_31 = __VERIFIER_nondet_ushort() [L77] input_33 = __VERIFIER_nondet_ushort() [L78] input_36 = __VERIFIER_nondet_ushort() [L79] input_38 = __VERIFIER_nondet_ushort() [L80] input_40 = __VERIFIER_nondet_ushort() [L81] input_42 = __VERIFIER_nondet_ushort() [L82] input_44 = __VERIFIER_nondet_ushort() [L83] input_46 = __VERIFIER_nondet_ushort() [L86] SORT_6 var_10_arg_0 = state_8; [L87] SORT_1 var_10 = var_10_arg_0 >> 2; [L88] SORT_1 var_11_arg_0 = var_10; [L89] SORT_1 var_11 = ~var_11_arg_0; [L90] SORT_6 var_13_arg_0 = state_8; [L91] SORT_12 var_13 = var_13_arg_0 >> 0; VAL [mask_SORT_12=3, mask_SORT_1=1, mask_SORT_6=7, state_8=0, var_11=-1, var_13=0, var_14=0, var_19=1, var_49=1, var_51=4, var_7=0] [L92] EXPR var_13 & mask_SORT_12 VAL [mask_SORT_12=3, mask_SORT_1=1, mask_SORT_6=7, state_8=0, var_11=-1, var_14=0, var_19=1, var_49=1, var_51=4, var_7=0] [L92] var_13 = var_13 & mask_SORT_12 [L93] SORT_12 var_15_arg_0 = var_13; [L94] SORT_12 var_15_arg_1 = var_14; [L95] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L96] SORT_1 var_16_arg_0 = var_11; [L97] SORT_1 var_16_arg_1 = var_15; VAL [mask_SORT_12=3, mask_SORT_1=1, mask_SORT_6=7, state_8=0, var_14=0, var_16_arg_0=-1, var_16_arg_1=1, var_19=1, var_49=1, var_51=4, var_7=0] [L98] EXPR var_16_arg_0 | var_16_arg_1 VAL [mask_SORT_12=3, mask_SORT_1=1, mask_SORT_6=7, state_8=0, var_14=0, var_19=1, var_49=1, var_51=4, var_7=0] [L98] SORT_1 var_16 = var_16_arg_0 | var_16_arg_1; [L99] SORT_1 var_20_arg_0 = var_16; [L100] SORT_1 var_20 = ~var_20_arg_0; [L101] SORT_1 var_21_arg_0 = var_19; [L102] SORT_1 var_21_arg_1 = var_20; VAL [mask_SORT_12=3, mask_SORT_1=1, mask_SORT_6=7, state_8=0, var_14=0, var_19=1, var_21_arg_0=1, var_21_arg_1=-1, var_49=1, var_51=4, var_7=0] [L103] EXPR var_21_arg_0 & var_21_arg_1 VAL [mask_SORT_12=3, mask_SORT_1=1, mask_SORT_6=7, state_8=0, var_14=0, var_19=1, var_49=1, var_51=4, var_7=0] [L103] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; [L104] EXPR var_21 & mask_SORT_1 VAL [mask_SORT_12=3, mask_SORT_1=1, mask_SORT_6=7, state_8=0, var_14=0, var_19=1, var_49=1, var_51=4, var_7=0] [L104] var_21 = var_21 & mask_SORT_1 [L105] SORT_1 bad_22_arg_0 = var_21; [L106] CALL __VERIFIER_assert(!(bad_22_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 206 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 571 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 421 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 283 IncrementalHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 150 mSDtfsCounter, 283 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=5, InterpolantAutomatonStates: 28, 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, 5 MinimizatonAttempts, 32 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-08 00:14:10,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7c314eef3d472fe4a1a0388d2c5f5a188709ac797267103fd11452d71371ead3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 00:14:13,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 00:14:13,181 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-02-08 00:14:13,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 00:14:13,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 00:14:13,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 00:14:13,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 00:14:13,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 00:14:13,220 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 00:14:13,220 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 00:14:13,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 00:14:13,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 00:14:13,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 00:14:13,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 00:14:13,222 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 00:14:13,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 00:14:13,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 00:14:13,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 00:14:13,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 00:14:13,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 00:14:13,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 00:14:13,223 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 00:14:13,223 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 00:14:13,223 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 00:14:13,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 00:14:13,223 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 00:14:13,223 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 00:14:13,224 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 00:14:13,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 00:14:13,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 00:14:13,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 00:14:13,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 00:14:13,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 00:14:13,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 00:14:13,225 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 00:14:13,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 00:14:13,225 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 00:14:13,226 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 00:14:13,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 00:14:13,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 00:14:13,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 00:14:13,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 00:14:13,226 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c314eef3d472fe4a1a0388d2c5f5a188709ac797267103fd11452d71371ead3 [2025-02-08 00:14:13,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 00:14:13,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 00:14:13,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 00:14:13,510 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 00:14:13,511 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 00:14:13,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c [2025-02-08 00:14:14,821 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/335aa3be8/7b6075190f844649b77fb90406eb2ad8/FLAG7f519cb07 [2025-02-08 00:14:15,060 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 00:14:15,060 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c [2025-02-08 00:14:15,069 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/335aa3be8/7b6075190f844649b77fb90406eb2ad8/FLAG7f519cb07 [2025-02-08 00:14:15,087 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/335aa3be8/7b6075190f844649b77fb90406eb2ad8 [2025-02-08 00:14:15,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 00:14:15,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 00:14:15,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 00:14:15,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 00:14:15,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 00:14:15,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dad7b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15, skipping insertion in model container [2025-02-08 00:14:15,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,117 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 00:14:15,248 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c[1260,1273] [2025-02-08 00:14:15,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 00:14:15,316 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 00:14:15,326 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c[1260,1273] [2025-02-08 00:14:15,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 00:14:15,378 INFO L204 MainTranslator]: Completed translation [2025-02-08 00:14:15,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15 WrapperNode [2025-02-08 00:14:15,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 00:14:15,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 00:14:15,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 00:14:15,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 00:14:15,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,422 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 132 [2025-02-08 00:14:15,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 00:14:15,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 00:14:15,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 00:14:15,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 00:14:15,432 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,436 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,449 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]. [2025-02-08 00:14:15,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,461 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 00:14:15,470 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 00:14:15,470 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 00:14:15,471 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 00:14:15,471 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (1/1) ... [2025-02-08 00:14:15,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 00:14:15,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 00:14:15,509 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) [2025-02-08 00:14:15,517 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 [2025-02-08 00:14:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 00:14:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 00:14:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 00:14:15,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 00:14:15,630 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 00:14:15,632 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 00:14:15,790 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2025-02-08 00:14:15,791 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 00:14:15,799 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 00:14:15,800 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 00:14:15,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:14:15 BoogieIcfgContainer [2025-02-08 00:14:15,801 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 00:14:15,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 00:14:15,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 00:14:15,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 00:14:15,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 12:14:15" (1/3) ... [2025-02-08 00:14:15,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0c64ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:14:15, skipping insertion in model container [2025-02-08 00:14:15,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:14:15" (2/3) ... [2025-02-08 00:14:15,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0c64ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:14:15, skipping insertion in model container [2025-02-08 00:14:15,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:14:15" (3/3) ... [2025-02-08 00:14:15,812 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p3.c [2025-02-08 00:14:15,826 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 00:14:15,827 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_vsa16a_p3.c that has 1 procedures, 8 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-08 00:14:15,874 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 00:14:15,887 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;@413501de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 00:14:15,887 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 00:14:15,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:15,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 00:14:15,893 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:14:15,894 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 00:14:15,894 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:14:15,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:14:15,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1137951, now seen corresponding path program 1 times [2025-02-08 00:14:15,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 00:14:15,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874327474] [2025-02-08 00:14:15,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:14:15,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 00:14:15,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 00:14:15,909 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 00:14:15,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 00:14:16,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 00:14:16,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 00:14:16,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:14:16,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:14:16,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-08 00:14:16,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 00:14:16,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:14:16,241 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 00:14:16,241 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 00:14:16,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874327474] [2025-02-08 00:14:16,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874327474] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:14:16,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:14:16,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 00:14:16,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840413680] [2025-02-08 00:14:16,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:14:16,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 00:14:16,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 00:14:16,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 00:14:16,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:14:16,262 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 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) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:16,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:14:16,303 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2025-02-08 00:14:16,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 00:14:16,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-02-08 00:14:16,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:14:16,311 INFO L225 Difference]: With dead ends: 16 [2025-02-08 00:14:16,313 INFO L226 Difference]: Without dead ends: 9 [2025-02-08 00:14:16,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 00:14:16,318 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 00:14:16,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 00:14:16,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-02-08 00:14:16,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2025-02-08 00:14:16,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:16,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2025-02-08 00:14:16,349 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2025-02-08 00:14:16,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:14:16,349 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2025-02-08 00:14:16,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:16,349 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2025-02-08 00:14:16,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 00:14:16,350 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:14:16,350 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-02-08 00:14:16,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 00:14:16,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 00:14:16,551 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:14:16,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:14:16,552 INFO L85 PathProgramCache]: Analyzing trace with hash -458170295, now seen corresponding path program 1 times [2025-02-08 00:14:16,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 00:14:16,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91278231] [2025-02-08 00:14:16,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:14:16,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 00:14:16,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 00:14:16,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 00:14:16,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 00:14:16,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 00:14:16,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 00:14:16,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:14:16,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:14:16,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-08 00:14:16,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 00:14:16,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:14:16,889 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 00:14:17,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:14:17,197 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 00:14:17,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91278231] [2025-02-08 00:14:17,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91278231] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 00:14:17,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 00:14:17,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-02-08 00:14:17,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420256047] [2025-02-08 00:14:17,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 00:14:17,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 00:14:17,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 00:14:17,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 00:14:17,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-02-08 00:14:17,200 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 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) [2025-02-08 00:14:17,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:14:17,393 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2025-02-08 00:14:17,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 00:14:17,394 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 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) Word has length 7 [2025-02-08 00:14:17,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:14:17,394 INFO L225 Difference]: With dead ends: 17 [2025-02-08 00:14:17,394 INFO L226 Difference]: Without dead ends: 15 [2025-02-08 00:14:17,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2025-02-08 00:14:17,395 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 00:14:17,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 00:14:17,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-02-08 00:14:17,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2025-02-08 00:14:17,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 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) [2025-02-08 00:14:17,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2025-02-08 00:14:17,400 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2025-02-08 00:14:17,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:14:17,400 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2025-02-08 00:14:17,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 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) [2025-02-08 00:14:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2025-02-08 00:14:17,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-08 00:14:17,401 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:14:17,401 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2025-02-08 00:14:17,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 00:14:17,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 00:14:17,602 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:14:17,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:14:17,603 INFO L85 PathProgramCache]: Analyzing trace with hash 852005001, now seen corresponding path program 2 times [2025-02-08 00:14:17,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 00:14:17,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [835309194] [2025-02-08 00:14:17,604 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 00:14:17,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 00:14:17,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 00:14:17,606 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 00:14:17,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 00:14:17,689 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 2 equivalence classes. [2025-02-08 00:14:17,718 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 00:14:17,718 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 00:14:17,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:14:17,721 WARN L254 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 60 conjuncts are in the unsatisfiable core [2025-02-08 00:14:17,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 00:14:18,760 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 00:14:18,760 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 00:14:34,426 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 00:14:34,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 00:14:34,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835309194] [2025-02-08 00:14:34,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835309194] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 00:14:34,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 00:14:34,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2025-02-08 00:14:34,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769775292] [2025-02-08 00:14:34,427 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 00:14:34,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-08 00:14:34,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 00:14:34,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-08 00:14:34,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=210, Unknown=1, NotChecked=0, Total=272 [2025-02-08 00:14:34,429 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:14:36,198 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2025-02-08 00:14:36,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 00:14:36,198 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 16 states have internal predecessors, (25), 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 13 [2025-02-08 00:14:36,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:14:36,198 INFO L225 Difference]: With dead ends: 14 [2025-02-08 00:14:36,199 INFO L226 Difference]: Without dead ends: 0 [2025-02-08 00:14:36,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=110, Invalid=269, Unknown=1, NotChecked=0, Total=380 [2025-02-08 00:14:36,200 INFO L435 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 00:14:36,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 00:14:36,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-08 00:14:36,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-08 00:14:36,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:36,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-08 00:14:36,201 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2025-02-08 00:14:36,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:14:36,201 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 00:14:36,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 00:14:36,201 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-08 00:14:36,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-08 00:14:36,206 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-08 00:14:36,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 00:14:36,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 00:14:36,410 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1] [2025-02-08 00:14:36,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-08 00:14:37,881 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 00:14:37,892 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2025-02-08 00:14:37,893 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2025-02-08 00:14:37,894 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2025-02-08 00:14:37,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 12:14:37 BoogieIcfgContainer [2025-02-08 00:14:37,898 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 00:14:37,899 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 00:14:37,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 00:14:37,899 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 00:14:37,904 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:14:15" (3/4) ... [2025-02-08 00:14:37,906 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 00:14:37,915 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 00:14:37,915 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 00:14:37,916 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 00:14:37,916 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 00:14:38,005 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 00:14:38,006 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 00:14:38,006 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 00:14:38,008 INFO L158 Benchmark]: Toolchain (without parser) took 22915.73ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 92.5MB in the beginning and 97.0MB in the end (delta: -4.5MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2025-02-08 00:14:38,008 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:14:38,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.25ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 79.2MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 00:14:38,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.95ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.4MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 00:14:38,009 INFO L158 Benchmark]: Boogie Preprocessor took 45.67ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 75.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:14:38,010 INFO L158 Benchmark]: IcfgBuilder took 331.12ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 61.9MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 00:14:38,010 INFO L158 Benchmark]: TraceAbstraction took 22095.08ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 61.3MB in the beginning and 103.5MB in the end (delta: -42.2MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2025-02-08 00:14:38,011 INFO L158 Benchmark]: Witness Printer took 107.11ms. Allocated memory is still 176.2MB. Free memory was 103.5MB in the beginning and 97.0MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 00:14:38,013 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 83.9MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.25ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 79.2MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.95ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.4MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.67ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 75.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 331.12ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 61.9MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 22095.08ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 61.3MB in the beginning and 103.5MB in the end (delta: -42.2MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Witness Printer took 107.11ms. Allocated memory is still 176.2MB. Free memory was 103.5MB in the beginning and 97.0MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.5s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 7 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 13.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 19 QuantifiedInterpolants, 9815 SizeOfPredicates, 21 NumberOfNonLiveVariables, 241 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 5/34 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Location Invariant Derived location invariant: ((((((((0 == var_7) && (3 == mask_SORT_12)) && (1 == var_19)) && (1 == var_49)) && (0 == var_14)) && (1 == mask_SORT_1)) && (4 == var_51)) && (7 == mask_SORT_6)) RESULT: Ultimate proved your program to be correct! [2025-02-08 00:14:38,223 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2025-02-08 00:14:38,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE