./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.5.prop1-back-serstep.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.elevator.5.prop1-back-serstep.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 ada6a7a87a97941a240b9faeb8598af351ddaadd0554b1ad7691c7a56b013362 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 23:01:53,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 23:01:53,799 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-07 23:01:53,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 23:01:53,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 23:01:53,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 23:01:53,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 23:01:53,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 23:01:53,830 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 23:01:53,830 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 23:01:53,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 23:01:53,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 23:01:53,831 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 23:01:53,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 23:01:53,831 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 23:01:53,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 23:01:53,831 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 23:01:53,832 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 23:01:53,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 23:01:53,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 23:01:53,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 23:01:53,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 23:01:53,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 23:01:53,832 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 23:01:53,832 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 23:01:53,832 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 23:01:53,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 23:01:53,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 23:01:53,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 23:01:53,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:01:53,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 23:01:53,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 23:01:53,834 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 23:01:53,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 23:01:53,834 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 23:01:53,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 23:01:53,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 23:01:53,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 23:01:53,834 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 23:01:53,834 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 23:01:53,834 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 -> ada6a7a87a97941a240b9faeb8598af351ddaadd0554b1ad7691c7a56b013362 [2025-02-07 23:01:54,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 23:01:54,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 23:01:54,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 23:01:54,135 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 23:01:54,135 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 23:01:54,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.5.prop1-back-serstep.c [2025-02-07 23:01:55,549 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/325f999de/e182ed3d239f4109a989f6adf62a27a8/FLAG021edc1bf [2025-02-07 23:01:55,925 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 23:01:55,926 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.5.prop1-back-serstep.c [2025-02-07 23:01:55,961 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/325f999de/e182ed3d239f4109a989f6adf62a27a8/FLAG021edc1bf [2025-02-07 23:01:55,980 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/325f999de/e182ed3d239f4109a989f6adf62a27a8 [2025-02-07 23:01:55,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 23:01:55,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 23:01:55,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 23:01:55,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 23:01:55,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 23:01:55,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:01:55" (1/1) ... [2025-02-07 23:01:55,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc97f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:55, skipping insertion in model container [2025-02-07 23:01:55,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:01:55" (1/1) ... [2025-02-07 23:01:56,102 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 23:01:56,284 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.elevator.5.prop1-back-serstep.c[1176,1189] [2025-02-07 23:01:57,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:01:57,286 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 23:01:57,293 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.elevator.5.prop1-back-serstep.c[1176,1189] [2025-02-07 23:01:57,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:01:57,929 INFO L204 MainTranslator]: Completed translation [2025-02-07 23:01:57,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57 WrapperNode [2025-02-07 23:01:57,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 23:01:57,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 23:01:57,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 23:01:57,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 23:01:57,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (1/1) ... [2025-02-07 23:01:58,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (1/1) ... [2025-02-07 23:01:59,312 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 17282 [2025-02-07 23:01:59,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 23:01:59,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 23:01:59,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 23:01:59,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 23:01:59,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (1/1) ... [2025-02-07 23:01:59,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (1/1) ... [2025-02-07 23:01:59,849 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (1/1) ... [2025-02-07 23:02:00,054 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 23:02:00,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (1/1) ... [2025-02-07 23:02:00,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (1/1) ... [2025-02-07 23:02:00,409 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (1/1) ... [2025-02-07 23:02:00,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (1/1) ... [2025-02-07 23:02:00,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (1/1) ... [2025-02-07 23:02:00,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (1/1) ... [2025-02-07 23:02:00,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 23:02:00,746 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 23:02:00,746 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 23:02:00,746 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 23:02:00,747 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (1/1) ... [2025-02-07 23:02:00,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:02:00,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:02:00,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 23:02:00,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 23:02:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 23:02:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 23:02:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 23:02:00,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 23:02:01,679 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 23:02:01,681 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 23:02:39,456 INFO L? ?]: Removed 9557 outVars from TransFormulas that were not future-live. [2025-02-07 23:02:39,457 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 23:02:39,773 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 23:02:39,773 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 23:02:39,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:02:39 BoogieIcfgContainer [2025-02-07 23:02:39,773 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 23:02:39,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 23:02:39,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 23:02:39,779 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 23:02:39,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 11:01:55" (1/3) ... [2025-02-07 23:02:39,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2f716c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:02:39, skipping insertion in model container [2025-02-07 23:02:39,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:01:57" (2/3) ... [2025-02-07 23:02:39,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2f716c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:02:39, skipping insertion in model container [2025-02-07 23:02:39,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:02:39" (3/3) ... [2025-02-07 23:02:39,782 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.elevator.5.prop1-back-serstep.c [2025-02-07 23:02:39,792 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 23:02:39,794 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.elevator.5.prop1-back-serstep.c that has 1 procedures, 5868 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 23:02:39,904 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 23:02:39,913 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;@448ce18d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 23:02:39,914 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 23:02:39,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 5868 states, 5866 states have (on average 1.5010228435049437) internal successors, (8805), 5867 states have internal predecessors, (8805), 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) [2025-02-07 23:02:39,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2025-02-07 23:02:39,969 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:02:39,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:02:39,971 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:02:39,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:02:39,975 INFO L85 PathProgramCache]: Analyzing trace with hash 901841638, now seen corresponding path program 1 times [2025-02-07 23:02:39,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:02:39,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449020802] [2025-02-07 23:02:39,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:02:39,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:02:40,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 570 statements into 1 equivalence classes. [2025-02-07 23:02:40,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 570 of 570 statements. [2025-02-07 23:02:40,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:02:40,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:02:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:02:42,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:02:42,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449020802] [2025-02-07 23:02:42,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449020802] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:02:42,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:02:42,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:02:42,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950984368] [2025-02-07 23:02:42,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:02:42,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:02:42,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:02:42,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:02:42,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:02:42,183 INFO L87 Difference]: Start difference. First operand has 5868 states, 5866 states have (on average 1.5010228435049437) internal successors, (8805), 5867 states have internal predecessors, (8805), 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 142.5) internal successors, (570), 4 states have internal predecessors, (570), 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) [2025-02-07 23:02:46,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:02:46,269 INFO L93 Difference]: Finished difference Result 11455 states and 17191 transitions. [2025-02-07 23:02:46,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:02:46,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 142.5) internal successors, (570), 4 states have internal predecessors, (570), 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 570 [2025-02-07 23:02:46,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:02:46,402 INFO L225 Difference]: With dead ends: 11455 [2025-02-07 23:02:46,415 INFO L226 Difference]: Without dead ends: 5868 [2025-02-07 23:02:46,436 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 [2025-02-07 23:02:46,438 INFO L435 NwaCegarLoop]: 7338 mSDtfsCounter, 0 mSDsluCounter, 14671 mSDsCounter, 0 mSdLazyCounter, 4396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22009 SdHoareTripleChecker+Invalid, 4396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2025-02-07 23:02:46,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22009 Invalid, 4396 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4396 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2025-02-07 23:02:46,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5868 states. [2025-02-07 23:02:46,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5868 to 5868. [2025-02-07 23:02:46,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5868 states, 5867 states have (on average 1.500596557013806) internal successors, (8804), 5867 states have internal predecessors, (8804), 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) [2025-02-07 23:02:46,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5868 states to 5868 states and 8804 transitions. [2025-02-07 23:02:46,657 INFO L78 Accepts]: Start accepts. Automaton has 5868 states and 8804 transitions. Word has length 570 [2025-02-07 23:02:46,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:02:46,660 INFO L471 AbstractCegarLoop]: Abstraction has 5868 states and 8804 transitions. [2025-02-07 23:02:46,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 142.5) internal successors, (570), 4 states have internal predecessors, (570), 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) [2025-02-07 23:02:46,666 INFO L276 IsEmpty]: Start isEmpty. Operand 5868 states and 8804 transitions. [2025-02-07 23:02:46,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2025-02-07 23:02:46,680 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:02:46,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:02:46,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 23:02:46,682 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:02:46,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:02:46,684 INFO L85 PathProgramCache]: Analyzing trace with hash -2102992874, now seen corresponding path program 1 times [2025-02-07 23:02:46,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:02:46,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376575204] [2025-02-07 23:02:46,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:02:46,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:02:46,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 571 statements into 1 equivalence classes. [2025-02-07 23:02:47,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 571 of 571 statements. [2025-02-07 23:02:47,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:02:47,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:02:47,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:02:47,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:02:47,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376575204] [2025-02-07 23:02:47,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376575204] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:02:47,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:02:47,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:02:47,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218132043] [2025-02-07 23:02:47,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:02:47,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:02:47,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:02:47,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:02:47,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:02:47,979 INFO L87 Difference]: Start difference. First operand 5868 states and 8804 transitions. Second operand has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 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) [2025-02-07 23:02:49,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:02:49,915 INFO L93 Difference]: Finished difference Result 11457 states and 17190 transitions. [2025-02-07 23:02:49,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:02:49,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 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 571 [2025-02-07 23:02:49,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:02:49,933 INFO L225 Difference]: With dead ends: 11457 [2025-02-07 23:02:49,933 INFO L226 Difference]: Without dead ends: 5870 [2025-02-07 23:02:49,940 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 [2025-02-07 23:02:49,941 INFO L435 NwaCegarLoop]: 7338 mSDtfsCounter, 0 mSDsluCounter, 14668 mSDsCounter, 0 mSdLazyCounter, 4399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22006 SdHoareTripleChecker+Invalid, 4399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-07 23:02:49,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22006 Invalid, 4399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4399 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-07 23:02:49,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5870 states. [2025-02-07 23:02:50,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5870 to 5870. [2025-02-07 23:02:50,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5870 states, 5869 states have (on average 1.500425966944965) internal successors, (8806), 5869 states have internal predecessors, (8806), 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) [2025-02-07 23:02:50,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5870 states to 5870 states and 8806 transitions. [2025-02-07 23:02:50,028 INFO L78 Accepts]: Start accepts. Automaton has 5870 states and 8806 transitions. Word has length 571 [2025-02-07 23:02:50,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:02:50,028 INFO L471 AbstractCegarLoop]: Abstraction has 5870 states and 8806 transitions. [2025-02-07 23:02:50,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 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) [2025-02-07 23:02:50,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5870 states and 8806 transitions. [2025-02-07 23:02:50,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2025-02-07 23:02:50,032 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:02:50,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:02:50,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 23:02:50,033 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:02:50,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:02:50,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1163247841, now seen corresponding path program 1 times [2025-02-07 23:02:50,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:02:50,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807383860] [2025-02-07 23:02:50,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:02:50,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:02:50,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 572 statements into 1 equivalence classes. [2025-02-07 23:02:50,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 572 of 572 statements. [2025-02-07 23:02:50,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:02:50,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:02:51,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:02:51,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:02:51,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807383860] [2025-02-07 23:02:51,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807383860] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:02:51,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:02:51,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:02:51,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732269992] [2025-02-07 23:02:51,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:02:51,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:02:51,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:02:51,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:02:51,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:02:51,044 INFO L87 Difference]: Start difference. First operand 5870 states and 8806 transitions. Second operand has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2025-02-07 23:02:52,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:02:52,939 INFO L93 Difference]: Finished difference Result 11461 states and 17194 transitions. [2025-02-07 23:02:52,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:02:52,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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 572 [2025-02-07 23:02:52,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:02:52,956 INFO L225 Difference]: With dead ends: 11461 [2025-02-07 23:02:52,956 INFO L226 Difference]: Without dead ends: 5872 [2025-02-07 23:02:52,962 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 [2025-02-07 23:02:52,964 INFO L435 NwaCegarLoop]: 7338 mSDtfsCounter, 0 mSDsluCounter, 14668 mSDsCounter, 0 mSdLazyCounter, 4399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22006 SdHoareTripleChecker+Invalid, 4399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-07 23:02:52,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22006 Invalid, 4399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4399 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-07 23:02:52,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5872 states. [2025-02-07 23:02:53,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5872 to 5872. [2025-02-07 23:02:53,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5872 states, 5871 states have (on average 1.5002554931016863) internal successors, (8808), 5871 states have internal predecessors, (8808), 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) [2025-02-07 23:02:53,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 8808 transitions. [2025-02-07 23:02:53,044 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 8808 transitions. Word has length 572 [2025-02-07 23:02:53,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:02:53,045 INFO L471 AbstractCegarLoop]: Abstraction has 5872 states and 8808 transitions. [2025-02-07 23:02:53,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2025-02-07 23:02:53,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 8808 transitions. [2025-02-07 23:02:53,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2025-02-07 23:02:53,049 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:02:53,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:02:53,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-07 23:02:53,049 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:02:53,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:02:53,050 INFO L85 PathProgramCache]: Analyzing trace with hash -705651813, now seen corresponding path program 1 times [2025-02-07 23:02:53,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:02:53,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918289165] [2025-02-07 23:02:53,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:02:53,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:02:53,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 573 statements into 1 equivalence classes. [2025-02-07 23:02:53,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 573 of 573 statements. [2025-02-07 23:02:53,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:02:53,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:02:53,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:02:53,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:02:53,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918289165] [2025-02-07 23:02:53,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918289165] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:02:53,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:02:53,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-07 23:02:53,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890463368] [2025-02-07 23:02:53,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:02:53,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:02:53,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:02:53,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:02:53,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:02:53,816 INFO L87 Difference]: Start difference. First operand 5872 states and 8808 transitions. Second operand has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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) [2025-02-07 23:02:55,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:02:55,824 INFO L93 Difference]: Finished difference Result 11465 states and 17198 transitions. [2025-02-07 23:02:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:02:55,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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 573 [2025-02-07 23:02:55,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:02:55,836 INFO L225 Difference]: With dead ends: 11465 [2025-02-07 23:02:55,836 INFO L226 Difference]: Without dead ends: 5874 [2025-02-07 23:02:55,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:02:55,842 INFO L435 NwaCegarLoop]: 7338 mSDtfsCounter, 0 mSDsluCounter, 22001 mSDsCounter, 0 mSdLazyCounter, 5868 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29339 SdHoareTripleChecker+Invalid, 5869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-07 23:02:55,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29339 Invalid, 5869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5868 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-07 23:02:55,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5874 states. [2025-02-07 23:02:55,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5874 to 5874. [2025-02-07 23:02:55,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5874 states, 5873 states have (on average 1.5000851353652307) internal successors, (8810), 5873 states have internal predecessors, (8810), 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) [2025-02-07 23:02:55,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5874 states to 5874 states and 8810 transitions. [2025-02-07 23:02:55,903 INFO L78 Accepts]: Start accepts. Automaton has 5874 states and 8810 transitions. Word has length 573 [2025-02-07 23:02:55,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:02:55,904 INFO L471 AbstractCegarLoop]: Abstraction has 5874 states and 8810 transitions. [2025-02-07 23:02:55,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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) [2025-02-07 23:02:55,905 INFO L276 IsEmpty]: Start isEmpty. Operand 5874 states and 8810 transitions. [2025-02-07 23:02:55,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2025-02-07 23:02:55,907 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:02:55,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:02:55,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-07 23:02:55,908 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:02:55,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:02:55,909 INFO L85 PathProgramCache]: Analyzing trace with hash 299435996, now seen corresponding path program 1 times [2025-02-07 23:02:55,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:02:55,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167616475] [2025-02-07 23:02:55,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:02:55,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:02:55,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 574 statements into 1 equivalence classes. [2025-02-07 23:02:56,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 574 of 574 statements. [2025-02-07 23:02:56,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:02:56,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:02:56,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:02:56,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:02:56,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167616475] [2025-02-07 23:02:56,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167616475] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:02:56,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:02:56,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:02:56,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751174647] [2025-02-07 23:02:56,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:02:56,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:02:56,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:02:56,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:02:56,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:02:56,791 INFO L87 Difference]: Start difference. First operand 5874 states and 8810 transitions. Second operand has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 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) [2025-02-07 23:02:58,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:02:58,649 INFO L93 Difference]: Finished difference Result 11469 states and 17202 transitions. [2025-02-07 23:02:58,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:02:58,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 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 574 [2025-02-07 23:02:58,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:02:58,661 INFO L225 Difference]: With dead ends: 11469 [2025-02-07 23:02:58,661 INFO L226 Difference]: Without dead ends: 5876 [2025-02-07 23:02:58,666 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 [2025-02-07 23:02:58,667 INFO L435 NwaCegarLoop]: 7338 mSDtfsCounter, 0 mSDsluCounter, 14668 mSDsCounter, 0 mSdLazyCounter, 4399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22006 SdHoareTripleChecker+Invalid, 4399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-07 23:02:58,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22006 Invalid, 4399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4399 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-07 23:02:58,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5876 states. [2025-02-07 23:02:58,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5876 to 5876. [2025-02-07 23:02:58,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5876 states, 5875 states have (on average 1.4999148936170212) internal successors, (8812), 5875 states have internal predecessors, (8812), 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) [2025-02-07 23:02:58,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5876 states to 5876 states and 8812 transitions. [2025-02-07 23:02:58,734 INFO L78 Accepts]: Start accepts. Automaton has 5876 states and 8812 transitions. Word has length 574 [2025-02-07 23:02:58,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:02:58,735 INFO L471 AbstractCegarLoop]: Abstraction has 5876 states and 8812 transitions. [2025-02-07 23:02:58,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 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) [2025-02-07 23:02:58,735 INFO L276 IsEmpty]: Start isEmpty. Operand 5876 states and 8812 transitions. [2025-02-07 23:02:58,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2025-02-07 23:02:58,738 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:02:58,738 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:02:58,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-07 23:02:58,738 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:02:58,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:02:58,739 INFO L85 PathProgramCache]: Analyzing trace with hash 561042976, now seen corresponding path program 1 times [2025-02-07 23:02:58,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:02:58,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937184659] [2025-02-07 23:02:58,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:02:58,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:02:58,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 575 statements into 1 equivalence classes. [2025-02-07 23:02:58,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 575 of 575 statements. [2025-02-07 23:02:58,866 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:02:58,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:02:59,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:02:59,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:02:59,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937184659] [2025-02-07 23:02:59,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937184659] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:02:59,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:02:59,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-07 23:02:59,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294626506] [2025-02-07 23:02:59,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:02:59,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:02:59,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:02:59,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:02:59,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:02:59,414 INFO L87 Difference]: Start difference. First operand 5876 states and 8812 transitions. Second operand has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 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) [2025-02-07 23:03:01,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:03:01,475 INFO L93 Difference]: Finished difference Result 11473 states and 17206 transitions. [2025-02-07 23:03:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:03:01,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 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 575 [2025-02-07 23:03:01,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:03:01,483 INFO L225 Difference]: With dead ends: 11473 [2025-02-07 23:03:01,483 INFO L226 Difference]: Without dead ends: 5878 [2025-02-07 23:03:01,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:03:01,487 INFO L435 NwaCegarLoop]: 7338 mSDtfsCounter, 0 mSDsluCounter, 22001 mSDsCounter, 0 mSdLazyCounter, 5868 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29339 SdHoareTripleChecker+Invalid, 5869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-07 23:03:01,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29339 Invalid, 5869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5868 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-07 23:03:01,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2025-02-07 23:03:01,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5878. [2025-02-07 23:03:01,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.4997447677386422) internal successors, (8814), 5877 states have internal predecessors, (8814), 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) [2025-02-07 23:03:01,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 8814 transitions. [2025-02-07 23:03:01,538 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 8814 transitions. Word has length 575 [2025-02-07 23:03:01,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:03:01,539 INFO L471 AbstractCegarLoop]: Abstraction has 5878 states and 8814 transitions. [2025-02-07 23:03:01,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 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) [2025-02-07 23:03:01,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 8814 transitions. [2025-02-07 23:03:01,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2025-02-07 23:03:01,542 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:03:01,543 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:03:01,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-07 23:03:01,543 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:03:01,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:03:01,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1707554857, now seen corresponding path program 1 times [2025-02-07 23:03:01,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:03:01,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895408475] [2025-02-07 23:03:01,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:03:01,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:03:01,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 576 statements into 1 equivalence classes. [2025-02-07 23:03:01,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 576 of 576 statements. [2025-02-07 23:03:01,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:03:01,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:03:02,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:03:02,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:03:02,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895408475] [2025-02-07 23:03:02,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895408475] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:03:02,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:03:02,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:03:02,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837254310] [2025-02-07 23:03:02,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:03:02,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:03:02,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:03:02,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:03:02,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:03:02,116 INFO L87 Difference]: Start difference. First operand 5878 states and 8814 transitions. Second operand has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2025-02-07 23:03:03,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:03:03,699 INFO L93 Difference]: Finished difference Result 11477 states and 17210 transitions. [2025-02-07 23:03:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:03:03,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 576 [2025-02-07 23:03:03,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:03:03,709 INFO L225 Difference]: With dead ends: 11477 [2025-02-07 23:03:03,709 INFO L226 Difference]: Without dead ends: 5880 [2025-02-07 23:03:03,717 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 [2025-02-07 23:03:03,719 INFO L435 NwaCegarLoop]: 7338 mSDtfsCounter, 0 mSDsluCounter, 14668 mSDsCounter, 0 mSdLazyCounter, 4399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22006 SdHoareTripleChecker+Invalid, 4399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-07 23:03:03,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22006 Invalid, 4399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4399 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-07 23:03:03,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5880 states. [2025-02-07 23:03:03,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5880 to 5880. [2025-02-07 23:03:03,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 5879 states have (on average 1.4995747576118388) internal successors, (8816), 5879 states have internal predecessors, (8816), 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) [2025-02-07 23:03:03,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 8816 transitions. [2025-02-07 23:03:03,787 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 8816 transitions. Word has length 576 [2025-02-07 23:03:03,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:03:03,788 INFO L471 AbstractCegarLoop]: Abstraction has 5880 states and 8816 transitions. [2025-02-07 23:03:03,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2025-02-07 23:03:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 8816 transitions. [2025-02-07 23:03:03,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2025-02-07 23:03:03,792 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:03:03,792 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:03:03,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-07 23:03:03,793 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:03:03,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:03:03,794 INFO L85 PathProgramCache]: Analyzing trace with hash -546725979, now seen corresponding path program 1 times [2025-02-07 23:03:03,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:03:03,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530805015] [2025-02-07 23:03:03,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:03:03,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:03:03,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 577 statements into 1 equivalence classes. [2025-02-07 23:03:03,923 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 577 of 577 statements. [2025-02-07 23:03:03,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:03:03,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:03:04,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:03:04,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:03:04,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530805015] [2025-02-07 23:03:04,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530805015] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:03:04,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:03:04,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-07 23:03:04,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224416170] [2025-02-07 23:03:04,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:03:04,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:03:04,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:03:04,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:03:04,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:03:04,353 INFO L87 Difference]: Start difference. First operand 5880 states and 8816 transitions. Second operand has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 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) [2025-02-07 23:03:06,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:03:06,562 INFO L93 Difference]: Finished difference Result 11481 states and 17214 transitions. [2025-02-07 23:03:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:03:06,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 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 577 [2025-02-07 23:03:06,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:03:06,570 INFO L225 Difference]: With dead ends: 11481 [2025-02-07 23:03:06,570 INFO L226 Difference]: Without dead ends: 5882 [2025-02-07 23:03:06,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:03:06,575 INFO L435 NwaCegarLoop]: 7338 mSDtfsCounter, 0 mSDsluCounter, 22001 mSDsCounter, 0 mSdLazyCounter, 5868 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29339 SdHoareTripleChecker+Invalid, 5869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-07 23:03:06,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29339 Invalid, 5869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5868 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-07 23:03:06,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5882 states. [2025-02-07 23:03:06,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5882 to 5882. [2025-02-07 23:03:06,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5882 states, 5881 states have (on average 1.4994048631185173) internal successors, (8818), 5881 states have internal predecessors, (8818), 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) [2025-02-07 23:03:06,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 8818 transitions. [2025-02-07 23:03:06,631 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 8818 transitions. Word has length 577 [2025-02-07 23:03:06,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:03:06,632 INFO L471 AbstractCegarLoop]: Abstraction has 5882 states and 8818 transitions. [2025-02-07 23:03:06,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 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) [2025-02-07 23:03:06,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 8818 transitions. [2025-02-07 23:03:06,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2025-02-07 23:03:06,635 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:03:06,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:03:06,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-07 23:03:06,638 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:03:06,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:03:06,639 INFO L85 PathProgramCache]: Analyzing trace with hash 63107282, now seen corresponding path program 1 times [2025-02-07 23:03:06,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:03:06,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761816160] [2025-02-07 23:03:06,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:03:06,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:03:06,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 578 statements into 1 equivalence classes. [2025-02-07 23:03:06,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 578 of 578 statements. [2025-02-07 23:03:06,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:03:06,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:03:07,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:03:07,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:03:07,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761816160] [2025-02-07 23:03:07,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761816160] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:03:07,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:03:07,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:03:07,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324407703] [2025-02-07 23:03:07,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:03:07,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:03:07,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:03:07,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:03:07,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:03:07,171 INFO L87 Difference]: Start difference. First operand 5882 states and 8818 transitions. Second operand has 4 states, 4 states have (on average 144.5) internal successors, (578), 4 states have internal predecessors, (578), 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) [2025-02-07 23:03:08,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:03:08,842 INFO L93 Difference]: Finished difference Result 11485 states and 17218 transitions. [2025-02-07 23:03:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:03:08,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 144.5) internal successors, (578), 4 states have internal predecessors, (578), 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 578 [2025-02-07 23:03:08,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:03:08,848 INFO L225 Difference]: With dead ends: 11485 [2025-02-07 23:03:08,849 INFO L226 Difference]: Without dead ends: 5884 [2025-02-07 23:03:08,852 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 [2025-02-07 23:03:08,854 INFO L435 NwaCegarLoop]: 7338 mSDtfsCounter, 0 mSDsluCounter, 14668 mSDsCounter, 0 mSdLazyCounter, 4399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22006 SdHoareTripleChecker+Invalid, 4399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-07 23:03:08,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22006 Invalid, 4399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4399 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-07 23:03:08,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2025-02-07 23:03:08,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5884. [2025-02-07 23:03:08,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5884 states, 5883 states have (on average 1.4992350841407445) internal successors, (8820), 5883 states have internal predecessors, (8820), 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) [2025-02-07 23:03:08,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5884 states to 5884 states and 8820 transitions. [2025-02-07 23:03:08,914 INFO L78 Accepts]: Start accepts. Automaton has 5884 states and 8820 transitions. Word has length 578 [2025-02-07 23:03:08,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:03:08,915 INFO L471 AbstractCegarLoop]: Abstraction has 5884 states and 8820 transitions. [2025-02-07 23:03:08,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 144.5) internal successors, (578), 4 states have internal predecessors, (578), 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) [2025-02-07 23:03:08,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5884 states and 8820 transitions. [2025-02-07 23:03:08,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2025-02-07 23:03:08,918 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:03:08,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:03:08,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-07 23:03:08,919 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:03:08,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:03:08,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1379731498, now seen corresponding path program 1 times [2025-02-07 23:03:08,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:03:08,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348834637] [2025-02-07 23:03:08,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:03:08,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:03:09,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 579 statements into 1 equivalence classes. [2025-02-07 23:03:09,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 579 of 579 statements. [2025-02-07 23:03:09,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:03:09,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:03:09,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:03:09,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:03:09,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348834637] [2025-02-07 23:03:09,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348834637] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:03:09,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:03:09,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-07 23:03:09,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959542445] [2025-02-07 23:03:09,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:03:09,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:03:09,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:03:09,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:03:09,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:03:09,488 INFO L87 Difference]: Start difference. First operand 5884 states and 8820 transitions. Second operand has 5 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 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) [2025-02-07 23:03:11,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:03:11,519 INFO L93 Difference]: Finished difference Result 11489 states and 17222 transitions. [2025-02-07 23:03:11,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:03:11,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 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 579 [2025-02-07 23:03:11,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:03:11,523 INFO L225 Difference]: With dead ends: 11489 [2025-02-07 23:03:11,524 INFO L226 Difference]: Without dead ends: 5886 [2025-02-07 23:03:11,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:03:11,527 INFO L435 NwaCegarLoop]: 7338 mSDtfsCounter, 0 mSDsluCounter, 22001 mSDsCounter, 0 mSdLazyCounter, 5868 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29339 SdHoareTripleChecker+Invalid, 5869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-07 23:03:11,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29339 Invalid, 5869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5868 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-07 23:03:11,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5886 states. [2025-02-07 23:03:11,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5886 to 5886. [2025-02-07 23:03:11,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5886 states, 5885 states have (on average 1.4990654205607477) internal successors, (8822), 5885 states have internal predecessors, (8822), 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) [2025-02-07 23:03:11,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5886 states to 5886 states and 8822 transitions. [2025-02-07 23:03:11,584 INFO L78 Accepts]: Start accepts. Automaton has 5886 states and 8822 transitions. Word has length 579 [2025-02-07 23:03:11,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:03:11,584 INFO L471 AbstractCegarLoop]: Abstraction has 5886 states and 8822 transitions. [2025-02-07 23:03:11,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 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) [2025-02-07 23:03:11,585 INFO L276 IsEmpty]: Start isEmpty. Operand 5886 states and 8822 transitions. [2025-02-07 23:03:11,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2025-02-07 23:03:11,588 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:03:11,588 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:03:11,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-07 23:03:11,588 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:03:11,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:03:11,589 INFO L85 PathProgramCache]: Analyzing trace with hash 2099606221, now seen corresponding path program 1 times [2025-02-07 23:03:11,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:03:11,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480264814] [2025-02-07 23:03:11,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:03:11,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:03:11,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 580 statements into 1 equivalence classes. [2025-02-07 23:03:11,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 580 of 580 statements. [2025-02-07 23:03:11,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:03:11,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:03:12,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:03:12,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:03:12,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480264814] [2025-02-07 23:03:12,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480264814] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:03:12,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:03:12,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-07 23:03:12,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565811887] [2025-02-07 23:03:12,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:03:12,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:03:12,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:03:12,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:03:12,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:03:12,131 INFO L87 Difference]: Start difference. First operand 5886 states and 8822 transitions. Second operand has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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) [2025-02-07 23:03:13,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:03:13,813 INFO L93 Difference]: Finished difference Result 11493 states and 17226 transitions. [2025-02-07 23:03:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:03:13,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 580 [2025-02-07 23:03:13,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:03:13,822 INFO L225 Difference]: With dead ends: 11493 [2025-02-07 23:03:13,823 INFO L226 Difference]: Without dead ends: 5888 [2025-02-07 23:03:13,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:03:13,827 INFO L435 NwaCegarLoop]: 7338 mSDtfsCounter, 0 mSDsluCounter, 14668 mSDsCounter, 0 mSdLazyCounter, 4400 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22006 SdHoareTripleChecker+Invalid, 4401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-07 23:03:13,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22006 Invalid, 4401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4400 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-07 23:03:13,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5888 states. [2025-02-07 23:03:13,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5888 to 5888. [2025-02-07 23:03:13,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5888 states, 5887 states have (on average 1.4988958722609138) internal successors, (8824), 5887 states have internal predecessors, (8824), 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) [2025-02-07 23:03:13,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5888 states to 5888 states and 8824 transitions. [2025-02-07 23:03:13,934 INFO L78 Accepts]: Start accepts. Automaton has 5888 states and 8824 transitions. Word has length 580 [2025-02-07 23:03:13,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:03:13,935 INFO L471 AbstractCegarLoop]: Abstraction has 5888 states and 8824 transitions. [2025-02-07 23:03:13,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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) [2025-02-07 23:03:13,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5888 states and 8824 transitions. [2025-02-07 23:03:13,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2025-02-07 23:03:13,941 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:03:13,942 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:03:13,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-07 23:03:13,942 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:03:13,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:03:13,947 INFO L85 PathProgramCache]: Analyzing trace with hash 560799663, now seen corresponding path program 1 times [2025-02-07 23:03:13,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:03:13,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338788194] [2025-02-07 23:03:13,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:03:13,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:03:14,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 581 statements into 1 equivalence classes. [2025-02-07 23:03:14,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 581 of 581 statements. [2025-02-07 23:03:14,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:03:14,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:03:14,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:03:14,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:03:14,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338788194] [2025-02-07 23:03:14,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338788194] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:03:14,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:03:14,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:03:14,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926770033] [2025-02-07 23:03:14,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:03:14,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:03:14,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:03:14,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:03:14,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:03:14,716 INFO L87 Difference]: Start difference. First operand 5888 states and 8824 transitions. Second operand has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 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)