./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-func-interl.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.telephony.2.prop1-func-interl.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 473867d34e525b28e26b42df133bde96f703860ebccbeb1b29653c50d41b3f37 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 00:04:23,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 00:04:23,875 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 00:04:23,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 00:04:23,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 00:04:23,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 00:04:23,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 00:04:23,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 00:04:23,914 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 00:04:23,915 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 00:04:23,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 00:04:23,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 00:04:23,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 00:04:23,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 00:04:23,916 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 00:04:23,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 00:04:23,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 00:04:23,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 00:04:23,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 00:04:23,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 00:04:23,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 00:04:23,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 00:04:23,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 00:04:23,918 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 00:04:23,918 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 00:04:23,918 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 00:04:23,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 00:04:23,918 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 00:04:23,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 00:04:23,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 00:04:23,918 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 00:04:23,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 00:04:23,919 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 00:04:23,919 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 00:04:23,919 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 00:04:23,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 00:04:23,920 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 00:04:23,920 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 00:04:23,920 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 00:04:23,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 00:04:23,920 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 -> 473867d34e525b28e26b42df133bde96f703860ebccbeb1b29653c50d41b3f37 [2025-02-08 00:04:24,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 00:04:24,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 00:04:24,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 00:04:24,217 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 00:04:24,217 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 00:04:24,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-func-interl.c [2025-02-08 00:04:25,466 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7e06b9db7/2d5afb72ab5a4994a089a3ae45644b36/FLAGfb538e17d [2025-02-08 00:04:26,572 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 00:04:26,572 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-func-interl.c [2025-02-08 00:04:26,601 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7e06b9db7/2d5afb72ab5a4994a089a3ae45644b36/FLAGfb538e17d [2025-02-08 00:04:26,620 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7e06b9db7/2d5afb72ab5a4994a089a3ae45644b36 [2025-02-08 00:04:26,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 00:04:26,627 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 00:04:26,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 00:04:26,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 00:04:26,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 00:04:26,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:04:26" (1/1) ... [2025-02-08 00:04:26,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525fcf80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:26, skipping insertion in model container [2025-02-08 00:04:26,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:04:26" (1/1) ... [2025-02-08 00:04:26,709 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 00:04:26,898 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.telephony.2.prop1-func-interl.c[1176,1189] [2025-02-08 00:04:27,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 00:04:27,456 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 00:04:27,466 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.telephony.2.prop1-func-interl.c[1176,1189] [2025-02-08 00:04:27,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 00:04:27,874 INFO L204 MainTranslator]: Completed translation [2025-02-08 00:04:27,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27 WrapperNode [2025-02-08 00:04:27,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 00:04:27,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 00:04:27,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 00:04:27,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 00:04:27,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (1/1) ... [2025-02-08 00:04:28,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (1/1) ... [2025-02-08 00:04:29,861 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 16103 [2025-02-08 00:04:29,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 00:04:29,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 00:04:29,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 00:04:29,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 00:04:29,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (1/1) ... [2025-02-08 00:04:29,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (1/1) ... [2025-02-08 00:04:30,349 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (1/1) ... [2025-02-08 00:04:30,658 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 00:04:30,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (1/1) ... [2025-02-08 00:04:30,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (1/1) ... [2025-02-08 00:04:31,272 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (1/1) ... [2025-02-08 00:04:31,361 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (1/1) ... [2025-02-08 00:04:31,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (1/1) ... [2025-02-08 00:04:31,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (1/1) ... [2025-02-08 00:04:31,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 00:04:31,714 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 00:04:31,714 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 00:04:31,714 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 00:04:31,716 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (1/1) ... [2025-02-08 00:04:31,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 00:04:31,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 00:04:31,748 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 00:04:31,750 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 00:04:31,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 00:04:31,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 00:04:31,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 00:04:31,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 00:04:32,579 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 00:04:32,581 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 00:05:03,585 INFO L? ?]: Removed 9052 outVars from TransFormulas that were not future-live. [2025-02-08 00:05:03,586 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 00:05:04,110 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 00:05:04,114 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 00:05:04,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:05:04 BoogieIcfgContainer [2025-02-08 00:05:04,117 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 00:05:04,119 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 00:05:04,120 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 00:05:04,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 00:05:04,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 12:04:26" (1/3) ... [2025-02-08 00:05:04,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50174bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:05:04, skipping insertion in model container [2025-02-08 00:05:04,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:04:27" (2/3) ... [2025-02-08 00:05:04,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50174bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:05:04, skipping insertion in model container [2025-02-08 00:05:04,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:05:04" (3/3) ... [2025-02-08 00:05:04,129 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.2.prop1-func-interl.c [2025-02-08 00:05:04,146 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 00:05:04,148 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.telephony.2.prop1-func-interl.c that has 1 procedures, 5704 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-08 00:05:04,333 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 00:05:04,345 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;@15c3955c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 00:05:04,347 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 00:05:04,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 5704 states, 5702 states have (on average 1.5042090494563312) internal successors, (8577), 5703 states have internal predecessors, (8577), 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 00:05:04,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2025-02-08 00:05:04,394 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:05:04,395 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:05:04,395 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:05:04,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:05:04,402 INFO L85 PathProgramCache]: Analyzing trace with hash 972656668, now seen corresponding path program 1 times [2025-02-08 00:05:04,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:05:04,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320546629] [2025-02-08 00:05:04,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:05:04,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:05:04,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 228 statements into 1 equivalence classes. [2025-02-08 00:05:04,812 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 228 of 228 statements. [2025-02-08 00:05:04,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:05:04,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:05:05,901 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 00:05:05,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:05:05,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320546629] [2025-02-08 00:05:05,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320546629] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:05:05,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:05:05,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 00:05:05,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055049648] [2025-02-08 00:05:05,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:05:05,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 00:05:05,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:05:05,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 00:05:05,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:05:05,950 INFO L87 Difference]: Start difference. First operand has 5704 states, 5702 states have (on average 1.5042090494563312) internal successors, (8577), 5703 states have internal predecessors, (8577), 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 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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 00:05:08,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:05:08,888 INFO L93 Difference]: Finished difference Result 11187 states and 16825 transitions. [2025-02-08 00:05:08,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 00:05:08,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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 228 [2025-02-08 00:05:08,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:05:08,935 INFO L225 Difference]: With dead ends: 11187 [2025-02-08 00:05:08,935 INFO L226 Difference]: Without dead ends: 5704 [2025-02-08 00:05:08,948 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 00:05:08,952 INFO L435 NwaCegarLoop]: 7160 mSDtfsCounter, 0 mSDsluCounter, 14315 mSDsCounter, 0 mSdLazyCounter, 4246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21475 SdHoareTripleChecker+Invalid, 4246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-02-08 00:05:08,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21475 Invalid, 4246 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4246 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-02-08 00:05:08,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5704 states. [2025-02-08 00:05:09,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5704 to 5704. [2025-02-08 00:05:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 1.5037699456426443) internal successors, (8576), 5703 states have internal predecessors, (8576), 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 00:05:09,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 8576 transitions. [2025-02-08 00:05:09,303 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 8576 transitions. Word has length 228 [2025-02-08 00:05:09,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:05:09,306 INFO L471 AbstractCegarLoop]: Abstraction has 5704 states and 8576 transitions. [2025-02-08 00:05:09,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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 00:05:09,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 8576 transitions. [2025-02-08 00:05:09,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2025-02-08 00:05:09,310 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:05:09,311 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:05:09,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 00:05:09,311 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:05:09,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:05:09,312 INFO L85 PathProgramCache]: Analyzing trace with hash 92273975, now seen corresponding path program 1 times [2025-02-08 00:05:09,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:05:09,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050051834] [2025-02-08 00:05:09,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:05:09,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:05:09,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 229 statements into 1 equivalence classes. [2025-02-08 00:05:09,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 229 of 229 statements. [2025-02-08 00:05:09,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:05:09,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:05:09,880 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 00:05:09,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:05:09,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050051834] [2025-02-08 00:05:09,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050051834] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:05:09,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:05:09,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 00:05:09,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149004292] [2025-02-08 00:05:09,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:05:09,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 00:05:09,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:05:09,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 00:05:09,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:05:09,883 INFO L87 Difference]: Start difference. First operand 5704 states and 8576 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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 00:05:12,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:05:12,583 INFO L93 Difference]: Finished difference Result 11189 states and 16824 transitions. [2025-02-08 00:05:12,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 00:05:12,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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 229 [2025-02-08 00:05:12,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:05:12,609 INFO L225 Difference]: With dead ends: 11189 [2025-02-08 00:05:12,610 INFO L226 Difference]: Without dead ends: 5706 [2025-02-08 00:05:12,620 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 00:05:12,622 INFO L435 NwaCegarLoop]: 7160 mSDtfsCounter, 0 mSDsluCounter, 14312 mSDsCounter, 0 mSdLazyCounter, 4249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21472 SdHoareTripleChecker+Invalid, 4249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-02-08 00:05:12,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21472 Invalid, 4249 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4249 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-02-08 00:05:12,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5706 states. [2025-02-08 00:05:12,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5706 to 5706. [2025-02-08 00:05:12,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5706 states, 5705 states have (on average 1.5035933391761613) internal successors, (8578), 5705 states have internal predecessors, (8578), 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 00:05:12,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 8578 transitions. [2025-02-08 00:05:12,757 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 8578 transitions. Word has length 229 [2025-02-08 00:05:12,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:05:12,759 INFO L471 AbstractCegarLoop]: Abstraction has 5706 states and 8578 transitions. [2025-02-08 00:05:12,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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 00:05:12,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 8578 transitions. [2025-02-08 00:05:12,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2025-02-08 00:05:12,762 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:05:12,762 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:05:12,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 00:05:12,762 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:05:12,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:05:12,763 INFO L85 PathProgramCache]: Analyzing trace with hash 497044343, now seen corresponding path program 1 times [2025-02-08 00:05:12,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:05:12,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470707351] [2025-02-08 00:05:12,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:05:12,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:05:12,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 230 statements into 1 equivalence classes. [2025-02-08 00:05:12,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 230 of 230 statements. [2025-02-08 00:05:12,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:05:12,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:05:13,194 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 00:05:13,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:05:13,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470707351] [2025-02-08 00:05:13,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470707351] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:05:13,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:05:13,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 00:05:13,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342146925] [2025-02-08 00:05:13,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:05:13,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 00:05:13,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:05:13,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 00:05:13,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:05:13,200 INFO L87 Difference]: Start difference. First operand 5706 states and 8578 transitions. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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 00:05:15,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:05:15,306 INFO L93 Difference]: Finished difference Result 11193 states and 16828 transitions. [2025-02-08 00:05:15,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 00:05:15,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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 230 [2025-02-08 00:05:15,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:05:15,329 INFO L225 Difference]: With dead ends: 11193 [2025-02-08 00:05:15,329 INFO L226 Difference]: Without dead ends: 5708 [2025-02-08 00:05:15,339 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 00:05:15,340 INFO L435 NwaCegarLoop]: 7160 mSDtfsCounter, 0 mSDsluCounter, 14307 mSDsCounter, 0 mSdLazyCounter, 4254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21467 SdHoareTripleChecker+Invalid, 4254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-08 00:05:15,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21467 Invalid, 4254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4254 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-08 00:05:15,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5708 states. [2025-02-08 00:05:15,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5708 to 5708. [2025-02-08 00:05:15,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5708 states, 5707 states have (on average 1.5034168564920274) internal successors, (8580), 5707 states have internal predecessors, (8580), 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 00:05:15,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5708 states to 5708 states and 8580 transitions. [2025-02-08 00:05:15,480 INFO L78 Accepts]: Start accepts. Automaton has 5708 states and 8580 transitions. Word has length 230 [2025-02-08 00:05:15,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:05:15,481 INFO L471 AbstractCegarLoop]: Abstraction has 5708 states and 8580 transitions. [2025-02-08 00:05:15,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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 00:05:15,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5708 states and 8580 transitions. [2025-02-08 00:05:15,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2025-02-08 00:05:15,484 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:05:15,484 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:05:15,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 00:05:15,484 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:05:15,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:05:15,485 INFO L85 PathProgramCache]: Analyzing trace with hash 116877148, now seen corresponding path program 1 times [2025-02-08 00:05:15,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:05:15,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165018091] [2025-02-08 00:05:15,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:05:15,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:05:15,560 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes. [2025-02-08 00:05:15,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements. [2025-02-08 00:05:15,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:05:15,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:05:16,016 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 00:05:16,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:05:16,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165018091] [2025-02-08 00:05:16,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165018091] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:05:16,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:05:16,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 00:05:16,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107458481] [2025-02-08 00:05:16,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:05:16,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 00:05:16,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:05:16,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 00:05:16,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 00:05:16,023 INFO L87 Difference]: Start difference. First operand 5708 states and 8580 transitions. Second operand has 5 states, 5 states have (on average 46.2) internal successors, (231), 4 states have internal predecessors, (231), 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 00:05:19,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:05:19,437 INFO L93 Difference]: Finished difference Result 15748 states and 23679 transitions. [2025-02-08 00:05:19,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 00:05:19,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.2) internal successors, (231), 4 states have internal predecessors, (231), 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 231 [2025-02-08 00:05:19,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:05:19,466 INFO L225 Difference]: With dead ends: 15748 [2025-02-08 00:05:19,466 INFO L226 Difference]: Without dead ends: 10261 [2025-02-08 00:05:19,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 00:05:19,479 INFO L435 NwaCegarLoop]: 7156 mSDtfsCounter, 6961 mSDsluCounter, 21187 mSDsCounter, 0 mSdLazyCounter, 5622 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6961 SdHoareTripleChecker+Valid, 28343 SdHoareTripleChecker+Invalid, 5622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-02-08 00:05:19,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6961 Valid, 28343 Invalid, 5622 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5622 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-02-08 00:05:19,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10261 states. [2025-02-08 00:05:19,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10261 to 5928. [2025-02-08 00:05:19,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5927 states have (on average 1.5032900286823014) internal successors, (8910), 5927 states have internal predecessors, (8910), 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 00:05:19,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8910 transitions. [2025-02-08 00:05:19,633 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 8910 transitions. Word has length 231 [2025-02-08 00:05:19,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:05:19,634 INFO L471 AbstractCegarLoop]: Abstraction has 5928 states and 8910 transitions. [2025-02-08 00:05:19,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.2) internal successors, (231), 4 states have internal predecessors, (231), 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 00:05:19,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 8910 transitions. [2025-02-08 00:05:19,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2919 [2025-02-08 00:05:19,843 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:05:19,845 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:05:19,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 00:05:19,845 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:05:19,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:05:19,850 INFO L85 PathProgramCache]: Analyzing trace with hash -580927466, now seen corresponding path program 1 times [2025-02-08 00:05:19,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:05:19,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632993255] [2025-02-08 00:05:19,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:05:19,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:05:20,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2918 statements into 1 equivalence classes. [2025-02-08 00:05:25,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2918 of 2918 statements. [2025-02-08 00:05:25,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 00:05:25,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 00:05:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 00:05:31,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 00:05:31,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632993255] [2025-02-08 00:05:31,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632993255] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 00:05:31,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 00:05:31,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 00:05:31,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347000765] [2025-02-08 00:05:31,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 00:05:31,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 00:05:31,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 00:05:31,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 00:05:31,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 00:05:31,133 INFO L87 Difference]: Start difference. First operand 5928 states and 8910 transitions. Second operand has 4 states, 4 states have (on average 729.5) internal successors, (2918), 3 states have internal predecessors, (2918), 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 00:05:33,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 00:05:33,402 INFO L93 Difference]: Finished difference Result 11415 states and 17159 transitions. [2025-02-08 00:05:33,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 00:05:33,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 729.5) internal successors, (2918), 3 states have internal predecessors, (2918), 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 2918 [2025-02-08 00:05:33,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 00:05:33,413 INFO L225 Difference]: With dead ends: 11415 [2025-02-08 00:05:33,413 INFO L226 Difference]: Without dead ends: 5928 [2025-02-08 00:05:33,418 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 00:05:33,419 INFO L435 NwaCegarLoop]: 7139 mSDtfsCounter, 8349 mSDsluCounter, 7136 mSDsCounter, 0 mSdLazyCounter, 2867 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8349 SdHoareTripleChecker+Valid, 14275 SdHoareTripleChecker+Invalid, 2867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-08 00:05:33,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8349 Valid, 14275 Invalid, 2867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2867 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-08 00:05:33,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5928 states. [2025-02-08 00:05:33,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5928 to 5928. [2025-02-08 00:05:33,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5927 states have (on average 1.503121309262696) internal successors, (8909), 5927 states have internal predecessors, (8909), 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 00:05:33,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8909 transitions. [2025-02-08 00:05:33,529 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 8909 transitions. Word has length 2918 [2025-02-08 00:05:33,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 00:05:33,532 INFO L471 AbstractCegarLoop]: Abstraction has 5928 states and 8909 transitions. [2025-02-08 00:05:33,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 729.5) internal successors, (2918), 3 states have internal predecessors, (2918), 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 00:05:33,533 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 8909 transitions. [2025-02-08 00:05:33,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2920 [2025-02-08 00:05:33,590 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 00:05:33,591 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 00:05:33,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 00:05:33,592 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 00:05:33,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 00:05:33,595 INFO L85 PathProgramCache]: Analyzing trace with hash 319732815, now seen corresponding path program 1 times [2025-02-08 00:05:33,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 00:05:33,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684242300] [2025-02-08 00:05:33,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 00:05:33,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 00:05:33,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2919 statements into 1 equivalence classes.