./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem05_label55.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem05_label55.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f0e59b7b1d972a268b3ed78cc71000ce5ff6262d5b088e2046491a6f14c7cff --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 01:14:15,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 01:14:15,810 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 01:14:15,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 01:14:15,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 01:14:15,836 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 01:14:15,837 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 01:14:15,837 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 01:14:15,837 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 01:14:15,838 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 01:14:15,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 01:14:15,838 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 01:14:15,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 01:14:15,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 01:14:15,839 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 01:14:15,839 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 01:14:15,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 01:14:15,840 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 01:14:15,840 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 01:14:15,840 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 01:14:15,840 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 01:14:15,840 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 01:14:15,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 01:14:15,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 01:14:15,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 01:14:15,840 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 01:14:15,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 01:14:15,840 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f0e59b7b1d972a268b3ed78cc71000ce5ff6262d5b088e2046491a6f14c7cff [2025-03-08 01:14:16,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 01:14:16,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 01:14:16,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 01:14:16,064 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 01:14:16,065 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 01:14:16,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem05_label55.c [2025-03-08 01:14:17,187 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a451c592/a8a96030070c4268a3d1c619f82925be/FLAG981b32532 [2025-03-08 01:14:17,730 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 01:14:17,731 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label55.c [2025-03-08 01:14:17,780 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a451c592/a8a96030070c4268a3d1c619f82925be/FLAG981b32532 [2025-03-08 01:14:17,795 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a451c592/a8a96030070c4268a3d1c619f82925be [2025-03-08 01:14:17,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 01:14:17,798 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 01:14:17,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 01:14:17,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 01:14:17,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 01:14:17,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 01:14:17" (1/1) ... [2025-03-08 01:14:17,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87a86ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:17, skipping insertion in model container [2025-03-08 01:14:17,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 01:14:17" (1/1) ... [2025-03-08 01:14:17,923 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 01:14:18,904 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label55.c[374550,374563] [2025-03-08 01:14:18,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 01:14:18,933 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 01:14:19,463 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label55.c[374550,374563] [2025-03-08 01:14:19,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 01:14:19,503 INFO L204 MainTranslator]: Completed translation [2025-03-08 01:14:19,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19 WrapperNode [2025-03-08 01:14:19,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 01:14:19,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 01:14:19,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 01:14:19,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 01:14:19,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (1/1) ... [2025-03-08 01:14:19,563 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (1/1) ... [2025-03-08 01:14:19,806 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12351 [2025-03-08 01:14:19,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 01:14:19,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 01:14:19,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 01:14:19,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 01:14:19,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (1/1) ... [2025-03-08 01:14:19,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (1/1) ... [2025-03-08 01:14:19,850 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (1/1) ... [2025-03-08 01:14:19,915 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 01:14:19,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (1/1) ... [2025-03-08 01:14:19,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (1/1) ... [2025-03-08 01:14:20,071 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (1/1) ... [2025-03-08 01:14:20,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (1/1) ... [2025-03-08 01:14:20,102 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (1/1) ... [2025-03-08 01:14:20,162 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (1/1) ... [2025-03-08 01:14:20,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 01:14:20,234 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 01:14:20,234 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 01:14:20,234 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 01:14:20,236 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (1/1) ... [2025-03-08 01:14:20,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 01:14:20,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 01:14:20,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 01:14:20,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 01:14:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 01:14:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 01:14:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 01:14:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 01:14:20,423 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 01:14:20,428 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 01:14:26,302 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4472: havoc calculate_output3_#t~ret15#1; [2025-03-08 01:14:26,302 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7460: havoc calculate_output5_#t~ret17#1; [2025-03-08 01:14:26,303 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3024: havoc calculate_output2_#t~ret14#1; [2025-03-08 01:14:26,303 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L10431: havoc calculate_output7_#t~ret19#1; [2025-03-08 01:14:26,303 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8913: havoc calculate_output6_#t~ret18#1; [2025-03-08 01:14:26,304 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6026: havoc calculate_output4_#t~ret16#1; [2025-03-08 01:14:26,304 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1534: havoc calculate_output_#t~ret13#1; [2025-03-08 01:14:26,494 INFO L? ?]: Removed 1656 outVars from TransFormulas that were not future-live. [2025-03-08 01:14:26,494 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 01:14:26,551 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 01:14:26,551 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 01:14:26,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 01:14:26 BoogieIcfgContainer [2025-03-08 01:14:26,552 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 01:14:26,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 01:14:26,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 01:14:26,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 01:14:26,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 01:14:17" (1/3) ... [2025-03-08 01:14:26,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ea92b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 01:14:26, skipping insertion in model container [2025-03-08 01:14:26,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:14:19" (2/3) ... [2025-03-08 01:14:26,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ea92b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 01:14:26, skipping insertion in model container [2025-03-08 01:14:26,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 01:14:26" (3/3) ... [2025-03-08 01:14:26,560 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label55.c [2025-03-08 01:14:26,572 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 01:14:26,574 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label55.c that has 1 procedures, 2185 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 01:14:26,662 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 01:14:26,671 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;@1b63aab6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 01:14:26,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 01:14:26,681 INFO L276 IsEmpty]: Start isEmpty. Operand has 2185 states, 2183 states have (on average 1.87036188731104) internal successors, (4083), 2184 states have internal predecessors, (4083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:26,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1636 [2025-03-08 01:14:26,742 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:14:26,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:14:26,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:14:26,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:14:26,749 INFO L85 PathProgramCache]: Analyzing trace with hash -713928052, now seen corresponding path program 1 times [2025-03-08 01:14:26,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:14:26,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606280017] [2025-03-08 01:14:26,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:14:26,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:14:27,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1635 statements into 1 equivalence classes. [2025-03-08 01:14:27,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1635 of 1635 statements. [2025-03-08 01:14:27,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:14:27,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:14:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 01:14:29,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:14:29,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606280017] [2025-03-08 01:14:29,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606280017] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:14:29,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:14:29,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 01:14:29,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344787591] [2025-03-08 01:14:29,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:14:29,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:14:29,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:14:29,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:14:29,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:14:29,703 INFO L87 Difference]: Start difference. First operand has 2185 states, 2183 states have (on average 1.87036188731104) internal successors, (4083), 2184 states have internal predecessors, (4083), 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 3 states, 3 states have (on average 545.0) internal successors, (1635), 2 states have internal predecessors, (1635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:34,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:14:34,834 INFO L93 Difference]: Finished difference Result 6175 states and 11680 transitions. [2025-03-08 01:14:34,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:14:34,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 545.0) internal successors, (1635), 2 states have internal predecessors, (1635), 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 1635 [2025-03-08 01:14:34,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:14:34,860 INFO L225 Difference]: With dead ends: 6175 [2025-03-08 01:14:34,861 INFO L226 Difference]: Without dead ends: 3926 [2025-03-08 01:14:34,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:14:34,870 INFO L435 NwaCegarLoop]: 1253 mSDtfsCounter, 522 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 5698 mSolverCounterSat, 1714 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 7412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1714 IncrementalHoareTripleChecker+Valid, 5698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2025-03-08 01:14:34,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1428 Invalid, 7412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1714 Valid, 5698 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2025-03-08 01:14:34,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3926 states. [2025-03-08 01:14:34,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3926 to 3906. [2025-03-08 01:14:34,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3906 states, 3905 states have (on average 1.7426376440460947) internal successors, (6805), 3905 states have internal predecessors, (6805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3906 states to 3906 states and 6805 transitions. [2025-03-08 01:14:34,985 INFO L78 Accepts]: Start accepts. Automaton has 3906 states and 6805 transitions. Word has length 1635 [2025-03-08 01:14:34,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:14:34,989 INFO L471 AbstractCegarLoop]: Abstraction has 3906 states and 6805 transitions. [2025-03-08 01:14:34,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 545.0) internal successors, (1635), 2 states have internal predecessors, (1635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:34,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3906 states and 6805 transitions. [2025-03-08 01:14:35,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1641 [2025-03-08 01:14:35,020 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:14:35,021 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:14:35,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 01:14:35,022 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:14:35,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:14:35,024 INFO L85 PathProgramCache]: Analyzing trace with hash 225409379, now seen corresponding path program 1 times [2025-03-08 01:14:35,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:14:35,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332157385] [2025-03-08 01:14:35,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:14:35,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:14:35,194 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1640 statements into 1 equivalence classes. [2025-03-08 01:14:35,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1640 of 1640 statements. [2025-03-08 01:14:35,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:14:35,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:14:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 01:14:36,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:14:36,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332157385] [2025-03-08 01:14:36,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332157385] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:14:36,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:14:36,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 01:14:36,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654090012] [2025-03-08 01:14:36,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:14:36,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:14:36,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:14:36,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:14:36,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:14:36,087 INFO L87 Difference]: Start difference. First operand 3906 states and 6805 transitions. Second operand has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 2 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:40,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:14:40,764 INFO L93 Difference]: Finished difference Result 11242 states and 19737 transitions. [2025-03-08 01:14:40,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:14:40,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 2 states have internal predecessors, (1640), 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 1640 [2025-03-08 01:14:40,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:14:40,790 INFO L225 Difference]: With dead ends: 11242 [2025-03-08 01:14:40,790 INFO L226 Difference]: Without dead ends: 7338 [2025-03-08 01:14:40,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:14:40,797 INFO L435 NwaCegarLoop]: 1551 mSDtfsCounter, 2707 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4475 mSolverCounterSat, 2372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2707 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 6847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2372 IncrementalHoareTripleChecker+Valid, 4475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-03-08 01:14:40,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2707 Valid, 1700 Invalid, 6847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2372 Valid, 4475 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2025-03-08 01:14:40,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7338 states. [2025-03-08 01:14:40,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7338 to 7336. [2025-03-08 01:14:40,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7336 states, 7335 states have (on average 1.562099522835719) internal successors, (11458), 7335 states have internal predecessors, (11458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:40,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7336 states to 7336 states and 11458 transitions. [2025-03-08 01:14:40,912 INFO L78 Accepts]: Start accepts. Automaton has 7336 states and 11458 transitions. Word has length 1640 [2025-03-08 01:14:40,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:14:40,912 INFO L471 AbstractCegarLoop]: Abstraction has 7336 states and 11458 transitions. [2025-03-08 01:14:40,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 2 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:40,913 INFO L276 IsEmpty]: Start isEmpty. Operand 7336 states and 11458 transitions. [2025-03-08 01:14:40,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1643 [2025-03-08 01:14:40,934 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:14:40,935 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:14:40,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 01:14:40,935 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:14:40,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:14:40,937 INFO L85 PathProgramCache]: Analyzing trace with hash -513942392, now seen corresponding path program 1 times [2025-03-08 01:14:40,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:14:40,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271207942] [2025-03-08 01:14:40,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:14:40,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:14:41,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1642 statements into 1 equivalence classes. [2025-03-08 01:14:41,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1642 of 1642 statements. [2025-03-08 01:14:41,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:14:41,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:14:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 01:14:43,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:14:43,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271207942] [2025-03-08 01:14:43,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271207942] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:14:43,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:14:43,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 01:14:43,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136205273] [2025-03-08 01:14:43,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:14:43,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:14:43,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:14:43,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:14:43,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:14:43,042 INFO L87 Difference]: Start difference. First operand 7336 states and 11458 transitions. Second operand has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:47,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:14:47,994 INFO L93 Difference]: Finished difference Result 21548 states and 33779 transitions. [2025-03-08 01:14:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:14:47,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 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 1642 [2025-03-08 01:14:47,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:14:48,050 INFO L225 Difference]: With dead ends: 21548 [2025-03-08 01:14:48,050 INFO L226 Difference]: Without dead ends: 14214 [2025-03-08 01:14:48,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:14:48,061 INFO L435 NwaCegarLoop]: 3583 mSDtfsCounter, 243 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 5289 mSolverCounterSat, 2085 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 3826 SdHoareTripleChecker+Invalid, 7374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2085 IncrementalHoareTripleChecker+Valid, 5289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2025-03-08 01:14:48,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 3826 Invalid, 7374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2085 Valid, 5289 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2025-03-08 01:14:48,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14214 states. [2025-03-08 01:14:48,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14214 to 14151. [2025-03-08 01:14:48,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14151 states, 14150 states have (on average 1.4035335689045936) internal successors, (19860), 14150 states have internal predecessors, (19860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:48,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14151 states to 14151 states and 19860 transitions. [2025-03-08 01:14:48,311 INFO L78 Accepts]: Start accepts. Automaton has 14151 states and 19860 transitions. Word has length 1642 [2025-03-08 01:14:48,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:14:48,313 INFO L471 AbstractCegarLoop]: Abstraction has 14151 states and 19860 transitions. [2025-03-08 01:14:48,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:48,314 INFO L276 IsEmpty]: Start isEmpty. Operand 14151 states and 19860 transitions. [2025-03-08 01:14:48,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1665 [2025-03-08 01:14:48,365 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:14:48,366 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:14:48,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 01:14:48,366 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:14:48,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:14:48,368 INFO L85 PathProgramCache]: Analyzing trace with hash 362710333, now seen corresponding path program 1 times [2025-03-08 01:14:48,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:14:48,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794454017] [2025-03-08 01:14:48,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:14:48,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:14:48,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1664 statements into 1 equivalence classes. [2025-03-08 01:14:48,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1664 of 1664 statements. [2025-03-08 01:14:48,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:14:48,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:14:49,268 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 01:14:49,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:14:49,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794454017] [2025-03-08 01:14:49,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794454017] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:14:49,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:14:49,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 01:14:49,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386954651] [2025-03-08 01:14:49,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:14:49,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:14:49,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:14:49,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:14:49,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:14:49,272 INFO L87 Difference]: Start difference. First operand 14151 states and 19860 transitions. Second operand has 3 states, 3 states have (on average 554.6666666666666) internal successors, (1664), 3 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:53,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:14:53,632 INFO L93 Difference]: Finished difference Result 41913 states and 58853 transitions. [2025-03-08 01:14:53,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:14:53,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 554.6666666666666) internal successors, (1664), 3 states have internal predecessors, (1664), 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 1664 [2025-03-08 01:14:53,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:14:53,685 INFO L225 Difference]: With dead ends: 41913 [2025-03-08 01:14:53,685 INFO L226 Difference]: Without dead ends: 27764 [2025-03-08 01:14:53,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:14:53,705 INFO L435 NwaCegarLoop]: 3797 mSDtfsCounter, 2025 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 4829 mSolverCounterSat, 2211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 4039 SdHoareTripleChecker+Invalid, 7040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2211 IncrementalHoareTripleChecker+Valid, 4829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-03-08 01:14:53,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 4039 Invalid, 7040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2211 Valid, 4829 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2025-03-08 01:14:53,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27764 states. [2025-03-08 01:14:53,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27764 to 27758. [2025-03-08 01:14:54,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27758 states, 27757 states have (on average 1.2743812371653997) internal successors, (35373), 27757 states have internal predecessors, (35373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:54,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27758 states to 27758 states and 35373 transitions. [2025-03-08 01:14:54,041 INFO L78 Accepts]: Start accepts. Automaton has 27758 states and 35373 transitions. Word has length 1664 [2025-03-08 01:14:54,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:14:54,042 INFO L471 AbstractCegarLoop]: Abstraction has 27758 states and 35373 transitions. [2025-03-08 01:14:54,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 554.6666666666666) internal successors, (1664), 3 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:54,042 INFO L276 IsEmpty]: Start isEmpty. Operand 27758 states and 35373 transitions. [2025-03-08 01:14:54,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1681 [2025-03-08 01:14:54,090 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:14:54,091 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:14:54,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 01:14:54,091 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:14:54,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:14:54,092 INFO L85 PathProgramCache]: Analyzing trace with hash 493143884, now seen corresponding path program 1 times [2025-03-08 01:14:54,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:14:54,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644217469] [2025-03-08 01:14:54,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:14:54,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:14:54,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1680 statements into 1 equivalence classes. [2025-03-08 01:14:54,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1680 of 1680 statements. [2025-03-08 01:14:54,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:14:54,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:14:54,809 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-08 01:14:54,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:14:54,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644217469] [2025-03-08 01:14:54,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644217469] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:14:54,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:14:54,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 01:14:54,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097925114] [2025-03-08 01:14:54,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:14:54,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:14:54,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:14:54,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:14:54,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:14:54,812 INFO L87 Difference]: Start difference. First operand 27758 states and 35373 transitions. Second operand has 3 states, 3 states have (on average 553.6666666666666) internal successors, (1661), 2 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:14:59,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:14:59,353 INFO L93 Difference]: Finished difference Result 82689 states and 105344 transitions. [2025-03-08 01:14:59,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:14:59,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 553.6666666666666) internal successors, (1661), 2 states have internal predecessors, (1661), 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 1680 [2025-03-08 01:14:59,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:14:59,449 INFO L225 Difference]: With dead ends: 82689 [2025-03-08 01:14:59,449 INFO L226 Difference]: Without dead ends: 54933 [2025-03-08 01:14:59,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:14:59,469 INFO L435 NwaCegarLoop]: 1975 mSDtfsCounter, 2219 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 4888 mSolverCounterSat, 2058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2219 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 6946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2058 IncrementalHoareTripleChecker+Valid, 4888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-03-08 01:14:59,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2219 Valid, 2165 Invalid, 6946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2058 Valid, 4888 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2025-03-08 01:14:59,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54933 states. [2025-03-08 01:14:59,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54933 to 54932. [2025-03-08 01:14:59,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54932 states, 54931 states have (on average 1.1957000600753673) internal successors, (65681), 54931 states have internal predecessors, (65681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:00,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54932 states to 54932 states and 65681 transitions. [2025-03-08 01:15:00,054 INFO L78 Accepts]: Start accepts. Automaton has 54932 states and 65681 transitions. Word has length 1680 [2025-03-08 01:15:00,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:15:00,055 INFO L471 AbstractCegarLoop]: Abstraction has 54932 states and 65681 transitions. [2025-03-08 01:15:00,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 553.6666666666666) internal successors, (1661), 2 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:00,055 INFO L276 IsEmpty]: Start isEmpty. Operand 54932 states and 65681 transitions. [2025-03-08 01:15:00,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1709 [2025-03-08 01:15:00,121 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:15:00,122 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:15:00,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 01:15:00,123 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:15:00,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:15:00,126 INFO L85 PathProgramCache]: Analyzing trace with hash 512091982, now seen corresponding path program 1 times [2025-03-08 01:15:00,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:15:00,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136175865] [2025-03-08 01:15:00,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:15:00,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:15:00,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1708 statements into 1 equivalence classes. [2025-03-08 01:15:00,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1708 of 1708 statements. [2025-03-08 01:15:00,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:15:00,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:15:00,795 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-03-08 01:15:00,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:15:00,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136175865] [2025-03-08 01:15:00,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136175865] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:15:00,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:15:00,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 01:15:00,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031660296] [2025-03-08 01:15:00,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:15:00,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:15:00,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:15:00,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:15:00,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:15:00,798 INFO L87 Difference]: Start difference. First operand 54932 states and 65681 transitions. Second operand has 3 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 2 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:04,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:15:04,774 INFO L93 Difference]: Finished difference Result 137024 states and 161669 transitions. [2025-03-08 01:15:04,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:15:04,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 2 states have internal predecessors, (1667), 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 1708 [2025-03-08 01:15:04,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:15:04,902 INFO L225 Difference]: With dead ends: 137024 [2025-03-08 01:15:04,902 INFO L226 Difference]: Without dead ends: 82094 [2025-03-08 01:15:04,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:15:04,948 INFO L435 NwaCegarLoop]: 1063 mSDtfsCounter, 3164 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4772 mSolverCounterSat, 1201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3164 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 5973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1201 IncrementalHoareTripleChecker+Valid, 4772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2025-03-08 01:15:04,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3164 Valid, 1147 Invalid, 5973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1201 Valid, 4772 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2025-03-08 01:15:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82094 states. [2025-03-08 01:15:05,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82094 to 75296. [2025-03-08 01:15:05,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75296 states, 75295 states have (on average 1.1265953914602562) internal successors, (84827), 75295 states have internal predecessors, (84827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:05,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75296 states to 75296 states and 84827 transitions. [2025-03-08 01:15:05,918 INFO L78 Accepts]: Start accepts. Automaton has 75296 states and 84827 transitions. Word has length 1708 [2025-03-08 01:15:05,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:15:05,919 INFO L471 AbstractCegarLoop]: Abstraction has 75296 states and 84827 transitions. [2025-03-08 01:15:05,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 2 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:05,919 INFO L276 IsEmpty]: Start isEmpty. Operand 75296 states and 84827 transitions. [2025-03-08 01:15:05,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1764 [2025-03-08 01:15:05,982 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:15:05,983 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:15:05,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 01:15:05,983 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:15:05,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:15:05,984 INFO L85 PathProgramCache]: Analyzing trace with hash 475315024, now seen corresponding path program 1 times [2025-03-08 01:15:05,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:15:05,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753031364] [2025-03-08 01:15:05,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:15:05,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:15:06,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1763 statements into 1 equivalence classes. [2025-03-08 01:15:06,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1763 of 1763 statements. [2025-03-08 01:15:06,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:15:06,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:15:08,431 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 01:15:08,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:15:08,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753031364] [2025-03-08 01:15:08,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753031364] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:15:08,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:15:08,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 01:15:08,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884201295] [2025-03-08 01:15:08,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:15:08,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:15:08,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:15:08,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:15:08,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:15:08,434 INFO L87 Difference]: Start difference. First operand 75296 states and 84827 transitions. Second operand has 3 states, 3 states have (on average 587.6666666666666) internal successors, (1763), 3 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:12,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:15:12,681 INFO L93 Difference]: Finished difference Result 164191 states and 184508 transitions. [2025-03-08 01:15:12,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:15:12,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 587.6666666666666) internal successors, (1763), 3 states have internal predecessors, (1763), 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 1763 [2025-03-08 01:15:12,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:15:12,796 INFO L225 Difference]: With dead ends: 164191 [2025-03-08 01:15:12,797 INFO L226 Difference]: Without dead ends: 85495 [2025-03-08 01:15:12,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:15:12,838 INFO L435 NwaCegarLoop]: 3948 mSDtfsCounter, 1614 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 5602 mSolverCounterSat, 546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 4173 SdHoareTripleChecker+Invalid, 6148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 5602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2025-03-08 01:15:12,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 4173 Invalid, 6148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [546 Valid, 5602 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2025-03-08 01:15:12,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85495 states. [2025-03-08 01:15:13,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85495 to 85479. [2025-03-08 01:15:13,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85479 states, 85478 states have (on average 1.1126254708813963) internal successors, (95105), 85478 states have internal predecessors, (95105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:13,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85479 states to 85479 states and 95105 transitions. [2025-03-08 01:15:13,675 INFO L78 Accepts]: Start accepts. Automaton has 85479 states and 95105 transitions. Word has length 1763 [2025-03-08 01:15:13,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:15:13,676 INFO L471 AbstractCegarLoop]: Abstraction has 85479 states and 95105 transitions. [2025-03-08 01:15:13,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 587.6666666666666) internal successors, (1763), 3 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:13,676 INFO L276 IsEmpty]: Start isEmpty. Operand 85479 states and 95105 transitions. [2025-03-08 01:15:13,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1778 [2025-03-08 01:15:13,738 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:15:13,738 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:15:13,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 01:15:13,739 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:15:13,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:15:13,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2111017701, now seen corresponding path program 1 times [2025-03-08 01:15:13,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:15:13,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933985850] [2025-03-08 01:15:13,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:15:13,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:15:13,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1777 statements into 1 equivalence classes. [2025-03-08 01:15:13,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1777 of 1777 statements. [2025-03-08 01:15:13,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:15:13,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:15:14,646 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-03-08 01:15:14,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:15:14,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933985850] [2025-03-08 01:15:14,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933985850] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:15:14,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:15:14,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 01:15:14,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553602363] [2025-03-08 01:15:14,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:15:14,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:15:14,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:15:14,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:15:14,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:15:14,649 INFO L87 Difference]: Start difference. First operand 85479 states and 95105 transitions. Second operand has 3 states, 3 states have (on average 557.3333333333334) internal successors, (1672), 2 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:19,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:15:19,285 INFO L93 Difference]: Finished difference Result 204941 states and 227640 transitions. [2025-03-08 01:15:19,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:15:19,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 557.3333333333334) internal successors, (1672), 2 states have internal predecessors, (1672), 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 1777 [2025-03-08 01:15:19,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:15:19,417 INFO L225 Difference]: With dead ends: 204941 [2025-03-08 01:15:19,417 INFO L226 Difference]: Without dead ends: 119464 [2025-03-08 01:15:19,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:15:19,442 INFO L435 NwaCegarLoop]: 1209 mSDtfsCounter, 2221 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 4935 mSolverCounterSat, 2087 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 7022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2087 IncrementalHoareTripleChecker+Valid, 4935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-03-08 01:15:19,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 1350 Invalid, 7022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2087 Valid, 4935 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-03-08 01:15:19,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119464 states. [2025-03-08 01:15:20,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119464 to 117746. [2025-03-08 01:15:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117746 states, 117745 states have (on average 1.0799354537347658) internal successors, (127157), 117745 states have internal predecessors, (127157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:20,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117746 states to 117746 states and 127157 transitions. [2025-03-08 01:15:20,330 INFO L78 Accepts]: Start accepts. Automaton has 117746 states and 127157 transitions. Word has length 1777 [2025-03-08 01:15:20,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:15:20,330 INFO L471 AbstractCegarLoop]: Abstraction has 117746 states and 127157 transitions. [2025-03-08 01:15:20,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 557.3333333333334) internal successors, (1672), 2 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:20,331 INFO L276 IsEmpty]: Start isEmpty. Operand 117746 states and 127157 transitions. [2025-03-08 01:15:20,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1887 [2025-03-08 01:15:20,549 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:15:20,550 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:15:20,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 01:15:20,550 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:15:20,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:15:20,551 INFO L85 PathProgramCache]: Analyzing trace with hash 505118174, now seen corresponding path program 1 times [2025-03-08 01:15:20,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:15:20,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845980919] [2025-03-08 01:15:20,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:15:20,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:15:20,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1886 statements into 1 equivalence classes. [2025-03-08 01:15:20,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1886 of 1886 statements. [2025-03-08 01:15:20,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:15:20,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:15:22,714 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 391 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-08 01:15:22,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:15:22,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845980919] [2025-03-08 01:15:22,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845980919] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:15:22,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:15:22,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 01:15:22,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801992673] [2025-03-08 01:15:22,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:15:22,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:15:22,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:15:22,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:15:22,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:15:22,718 INFO L87 Difference]: Start difference. First operand 117746 states and 127157 transitions. Second operand has 3 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:28,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:15:28,264 INFO L93 Difference]: Finished difference Result 308587 states and 334610 transitions. [2025-03-08 01:15:28,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:15:28,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 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 1886 [2025-03-08 01:15:28,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:15:28,488 INFO L225 Difference]: With dead ends: 308587 [2025-03-08 01:15:28,488 INFO L226 Difference]: Without dead ends: 190843 [2025-03-08 01:15:28,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:15:28,578 INFO L435 NwaCegarLoop]: 3768 mSDtfsCounter, 1793 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 5306 mSolverCounterSat, 2130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 3953 SdHoareTripleChecker+Invalid, 7436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2130 IncrementalHoareTripleChecker+Valid, 5306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2025-03-08 01:15:28,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 3953 Invalid, 7436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2130 Valid, 5306 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2025-03-08 01:15:28,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190843 states. [2025-03-08 01:15:30,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190843 to 172106. [2025-03-08 01:15:30,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172106 states, 172105 states have (on average 1.076906539612446) internal successors, (185341), 172105 states have internal predecessors, (185341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:30,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172106 states to 172106 states and 185341 transitions. [2025-03-08 01:15:30,559 INFO L78 Accepts]: Start accepts. Automaton has 172106 states and 185341 transitions. Word has length 1886 [2025-03-08 01:15:30,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:15:30,559 INFO L471 AbstractCegarLoop]: Abstraction has 172106 states and 185341 transitions. [2025-03-08 01:15:30,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:15:30,559 INFO L276 IsEmpty]: Start isEmpty. Operand 172106 states and 185341 transitions. [2025-03-08 01:15:30,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1896 [2025-03-08 01:15:30,792 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:15:30,793 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:15:30,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 01:15:30,794 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:15:30,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:15:30,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1485331455, now seen corresponding path program 1 times [2025-03-08 01:15:30,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:15:30,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983164591] [2025-03-08 01:15:30,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:15:30,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:15:30,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1895 statements into 1 equivalence classes. [2025-03-08 01:15:30,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1895 of 1895 statements. [2025-03-08 01:15:30,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:15:30,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:15:32,747 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 446 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2025-03-08 01:15:32,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:15:32,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983164591] [2025-03-08 01:15:32,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983164591] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:15:32,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:15:32,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 01:15:32,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704656244] [2025-03-08 01:15:32,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:15:32,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:15:32,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:15:32,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:15:32,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:15:32,749 INFO L87 Difference]: Start difference. First operand 172106 states and 185341 transitions. Second operand has 3 states, 3 states have (on average 606.6666666666666) internal successors, (1820), 3 states have internal predecessors, (1820), 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)