./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem05_label33.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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_label33.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 38b2aeb199b2b6870ba84a3604aff95db9373ea614c0c9f970a275f134ff2c01 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 10:02:16,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 10:02:16,676 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 10:02:16,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 10:02:16,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 10:02:16,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 10:02:16,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 10:02:16,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 10:02:16,706 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 10:02:16,706 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 10:02:16,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 10:02:16,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 10:02:16,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 10:02:16,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 10:02:16,707 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 10:02:16,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 10:02:16,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 10:02:16,708 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 10:02:16,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 10:02:16,708 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 10:02:16,708 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 10:02:16,708 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 10:02:16,708 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 10:02:16,708 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 10:02:16,708 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 10:02:16,709 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 10:02:16,709 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 10:02:16,709 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 10:02:16,709 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 10:02:16,709 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 10:02:16,709 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 10:02:16,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 10:02:16,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 10:02:16,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 10:02:16,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 10:02:16,710 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 10:02:16,710 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 10:02:16,710 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 10:02:16,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 10:02:16,710 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 10:02:16,710 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 10:02:16,710 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 10:02:16,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 10:02:16,710 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 -> 38b2aeb199b2b6870ba84a3604aff95db9373ea614c0c9f970a275f134ff2c01 [2025-03-03 10:02:16,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 10:02:16,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 10:02:16,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 10:02:16,919 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 10:02:16,920 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 10:02:16,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem05_label33.c [2025-03-03 10:02:17,986 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a31dca8ad/1a80cf4c5a86487a970507c2f50f03d6/FLAGbc039c519 [2025-03-03 10:02:18,533 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 10:02:18,534 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label33.c [2025-03-03 10:02:18,574 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a31dca8ad/1a80cf4c5a86487a970507c2f50f03d6/FLAGbc039c519 [2025-03-03 10:02:19,054 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a31dca8ad/1a80cf4c5a86487a970507c2f50f03d6 [2025-03-03 10:02:19,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 10:02:19,057 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 10:02:19,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 10:02:19,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 10:02:19,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 10:02:19,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 10:02:19" (1/1) ... [2025-03-03 10:02:19,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30296b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:19, skipping insertion in model container [2025-03-03 10:02:19,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 10:02:19" (1/1) ... [2025-03-03 10:02:19,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 10:02:20,149 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_label33.c[375230,375243] [2025-03-03 10:02:20,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 10:02:20,175 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 10:02:20,651 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_label33.c[375230,375243] [2025-03-03 10:02:20,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 10:02:20,695 INFO L204 MainTranslator]: Completed translation [2025-03-03 10:02:20,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20 WrapperNode [2025-03-03 10:02:20,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 10:02:20,697 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 10:02:20,697 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 10:02:20,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 10:02:20,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (1/1) ... [2025-03-03 10:02:20,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (1/1) ... [2025-03-03 10:02:21,071 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12351 [2025-03-03 10:02:21,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 10:02:21,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 10:02:21,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 10:02:21,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 10:02:21,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (1/1) ... [2025-03-03 10:02:21,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (1/1) ... [2025-03-03 10:02:21,117 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (1/1) ... [2025-03-03 10:02:21,185 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]. [2025-03-03 10:02:21,185 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (1/1) ... [2025-03-03 10:02:21,185 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (1/1) ... [2025-03-03 10:02:21,266 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (1/1) ... [2025-03-03 10:02:21,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (1/1) ... [2025-03-03 10:02:21,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (1/1) ... [2025-03-03 10:02:21,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (1/1) ... [2025-03-03 10:02:21,351 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 10:02:21,353 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 10:02:21,353 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 10:02:21,354 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 10:02:21,355 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (1/1) ... [2025-03-03 10:02:21,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 10:02:21,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:02:21,379 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) [2025-03-03 10:02:21,382 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 [2025-03-03 10:02:21,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 10:02:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 10:02:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 10:02:21,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 10:02:21,458 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 10:02:21,460 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 10:02:27,189 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4472: havoc calculate_output3_#t~ret15#1; [2025-03-03 10:02:27,189 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7460: havoc calculate_output5_#t~ret17#1; [2025-03-03 10:02:27,189 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3024: havoc calculate_output2_#t~ret14#1; [2025-03-03 10:02:27,190 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L10431: havoc calculate_output7_#t~ret19#1; [2025-03-03 10:02:27,190 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L8913: havoc calculate_output6_#t~ret18#1; [2025-03-03 10:02:27,190 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6026: havoc calculate_output4_#t~ret16#1; [2025-03-03 10:02:27,190 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1534: havoc calculate_output_#t~ret13#1; [2025-03-03 10:02:27,351 INFO L? ?]: Removed 1656 outVars from TransFormulas that were not future-live. [2025-03-03 10:02:27,351 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 10:02:27,387 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 10:02:27,387 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 10:02:27,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:02:27 BoogieIcfgContainer [2025-03-03 10:02:27,387 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 10:02:27,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 10:02:27,390 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 10:02:27,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 10:02:27,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 10:02:19" (1/3) ... [2025-03-03 10:02:27,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e70e0de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 10:02:27, skipping insertion in model container [2025-03-03 10:02:27,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:02:20" (2/3) ... [2025-03-03 10:02:27,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e70e0de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 10:02:27, skipping insertion in model container [2025-03-03 10:02:27,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:02:27" (3/3) ... [2025-03-03 10:02:27,396 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label33.c [2025-03-03 10:02:27,407 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 10:02:27,408 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label33.c that has 1 procedures, 2185 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 10:02:27,488 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 10:02:27,497 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;@79436532, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 10:02:27,498 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 10:02:27,508 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) [2025-03-03 10:02:27,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1641 [2025-03-03 10:02:27,638 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:02:27,645 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, 1, 1, 1, 1, 1] [2025-03-03 10:02:27,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:02:27,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:02:27,654 INFO L85 PathProgramCache]: Analyzing trace with hash -599674061, now seen corresponding path program 1 times [2025-03-03 10:02:27,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:02:27,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743935147] [2025-03-03 10:02:27,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:02:27,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:02:28,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1640 statements into 1 equivalence classes. [2025-03-03 10:02:28,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1640 of 1640 statements. [2025-03-03 10:02:28,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:02:28,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:02:31,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:02:31,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:02:31,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743935147] [2025-03-03 10:02:31,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743935147] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:02:31,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:02:31,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:02:31,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342634614] [2025-03-03 10:02:31,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:02:31,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 10:02:31,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:02:31,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 10:02:31,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 10:02:31,724 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 4 states, 4 states have (on average 410.0) internal successors, (1640), 3 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) [2025-03-03 10:02:43,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:02:43,021 INFO L93 Difference]: Finished difference Result 9493 states and 18312 transitions. [2025-03-03 10:02:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 10:02:43,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 410.0) internal successors, (1640), 3 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 [2025-03-03 10:02:43,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:02:43,062 INFO L225 Difference]: With dead ends: 9493 [2025-03-03 10:02:43,062 INFO L226 Difference]: Without dead ends: 7238 [2025-03-03 10:02:43,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 10:02:43,071 INFO L435 NwaCegarLoop]: 2353 mSDtfsCounter, 3733 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 13848 mSolverCounterSat, 5279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3733 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 19127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5279 IncrementalHoareTripleChecker+Valid, 13848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2025-03-03 10:02:43,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3733 Valid, 2741 Invalid, 19127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5279 Valid, 13848 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2025-03-03 10:02:43,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7238 states. [2025-03-03 10:02:43,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7238 to 5583. [2025-03-03 10:02:43,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5582 states have (on average 1.5829451809387316) internal successors, (8836), 5582 states have internal predecessors, (8836), 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) [2025-03-03 10:02:43,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 8836 transitions. [2025-03-03 10:02:43,242 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 8836 transitions. Word has length 1640 [2025-03-03 10:02:43,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:02:43,245 INFO L471 AbstractCegarLoop]: Abstraction has 5583 states and 8836 transitions. [2025-03-03 10:02:43,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 410.0) internal successors, (1640), 3 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) [2025-03-03 10:02:43,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 8836 transitions. [2025-03-03 10:02:43,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1659 [2025-03-03 10:02:43,332 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:02:43,332 INFO L218 NwaCegarLoop]: trace histogram [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, 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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, 1, 1] [2025-03-03 10:02:43,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 10:02:43,334 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:02:43,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:02:43,336 INFO L85 PathProgramCache]: Analyzing trace with hash -470537165, now seen corresponding path program 1 times [2025-03-03 10:02:43,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:02:43,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314239644] [2025-03-03 10:02:43,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:02:43,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:02:43,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1658 statements into 1 equivalence classes. [2025-03-03 10:02:43,586 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1658 of 1658 statements. [2025-03-03 10:02:43,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:02:43,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:02:44,743 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:02:44,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:02:44,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314239644] [2025-03-03 10:02:44,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314239644] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:02:44,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:02:44,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:02:44,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312870051] [2025-03-03 10:02:44,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:02:44,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:02:44,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:02:44,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:02:44,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:02:44,750 INFO L87 Difference]: Start difference. First operand 5583 states and 8836 transitions. Second operand has 3 states, 3 states have (on average 552.6666666666666) internal successors, (1658), 3 states have internal predecessors, (1658), 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) [2025-03-03 10:02:49,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:02:49,126 INFO L93 Difference]: Finished difference Result 14638 states and 24181 transitions. [2025-03-03 10:02:49,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:02:49,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 552.6666666666666) internal successors, (1658), 3 states have internal predecessors, (1658), 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 1658 [2025-03-03 10:02:49,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:02:49,155 INFO L225 Difference]: With dead ends: 14638 [2025-03-03 10:02:49,155 INFO L226 Difference]: Without dead ends: 9057 [2025-03-03 10:02:49,163 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 [2025-03-03 10:02:49,164 INFO L435 NwaCegarLoop]: 3451 mSDtfsCounter, 645 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 4721 mSolverCounterSat, 2229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 6950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2229 IncrementalHoareTripleChecker+Valid, 4721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-03-03 10:02:49,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 3698 Invalid, 6950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2229 Valid, 4721 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2025-03-03 10:02:49,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9057 states. [2025-03-03 10:02:49,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9057 to 9052. [2025-03-03 10:02:49,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9052 states, 9051 states have (on average 1.4739807756049055) internal successors, (13341), 9051 states have internal predecessors, (13341), 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) [2025-03-03 10:02:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9052 states to 9052 states and 13341 transitions. [2025-03-03 10:02:49,291 INFO L78 Accepts]: Start accepts. Automaton has 9052 states and 13341 transitions. Word has length 1658 [2025-03-03 10:02:49,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:02:49,294 INFO L471 AbstractCegarLoop]: Abstraction has 9052 states and 13341 transitions. [2025-03-03 10:02:49,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 552.6666666666666) internal successors, (1658), 3 states have internal predecessors, (1658), 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) [2025-03-03 10:02:49,294 INFO L276 IsEmpty]: Start isEmpty. Operand 9052 states and 13341 transitions. [2025-03-03 10:02:49,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1692 [2025-03-03 10:02:49,317 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:02:49,318 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2025-03-03 10:02:49,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 10:02:49,318 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:02:49,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:02:49,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1122979989, now seen corresponding path program 1 times [2025-03-03 10:02:49,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:02:49,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811062981] [2025-03-03 10:02:49,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:02:49,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:02:49,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1691 statements into 1 equivalence classes. [2025-03-03 10:02:49,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1691 of 1691 statements. [2025-03-03 10:02:49,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:02:49,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:02:51,153 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-03 10:02:51,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:02:51,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811062981] [2025-03-03 10:02:51,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811062981] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:02:51,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:02:51,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:02:51,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213499942] [2025-03-03 10:02:51,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:02:51,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:02:51,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:02:51,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:02:51,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:02:51,162 INFO L87 Difference]: Start difference. First operand 9052 states and 13341 transitions. Second operand has 3 states, 3 states have (on average 554.3333333333334) internal successors, (1663), 2 states have internal predecessors, (1663), 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) [2025-03-03 10:02:55,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:02:55,325 INFO L93 Difference]: Finished difference Result 24913 states and 37561 transitions. [2025-03-03 10:02:55,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:02:55,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 554.3333333333334) internal successors, (1663), 2 states have internal predecessors, (1663), 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 1691 [2025-03-03 10:02:55,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:02:55,357 INFO L225 Difference]: With dead ends: 24913 [2025-03-03 10:02:55,357 INFO L226 Difference]: Without dead ends: 15863 [2025-03-03 10:02:55,366 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 [2025-03-03 10:02:55,366 INFO L435 NwaCegarLoop]: 2005 mSDtfsCounter, 2208 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 4886 mSolverCounterSat, 2059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 2198 SdHoareTripleChecker+Invalid, 6945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2059 IncrementalHoareTripleChecker+Valid, 4886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-03-03 10:02:55,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2208 Valid, 2198 Invalid, 6945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2059 Valid, 4886 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2025-03-03 10:02:55,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15863 states. [2025-03-03 10:02:55,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15863 to 15862. [2025-03-03 10:02:55,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15862 states, 15861 states have (on average 1.3809974150431876) internal successors, (21904), 15861 states have internal predecessors, (21904), 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) [2025-03-03 10:02:55,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15862 states to 15862 states and 21904 transitions. [2025-03-03 10:02:55,580 INFO L78 Accepts]: Start accepts. Automaton has 15862 states and 21904 transitions. Word has length 1691 [2025-03-03 10:02:55,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:02:55,580 INFO L471 AbstractCegarLoop]: Abstraction has 15862 states and 21904 transitions. [2025-03-03 10:02:55,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 554.3333333333334) internal successors, (1663), 2 states have internal predecessors, (1663), 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) [2025-03-03 10:02:55,581 INFO L276 IsEmpty]: Start isEmpty. Operand 15862 states and 21904 transitions. [2025-03-03 10:02:55,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1695 [2025-03-03 10:02:55,612 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:02:55,613 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:02:55,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 10:02:55,613 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:02:55,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:02:55,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1818500028, now seen corresponding path program 1 times [2025-03-03 10:02:55,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:02:55,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848775668] [2025-03-03 10:02:55,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:02:55,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:02:55,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1694 statements into 1 equivalence classes. [2025-03-03 10:02:55,744 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1694 of 1694 statements. [2025-03-03 10:02:55,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:02:55,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:02:56,527 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-03 10:02:56,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:02:56,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848775668] [2025-03-03 10:02:56,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848775668] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:02:56,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:02:56,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:02:56,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296542509] [2025-03-03 10:02:56,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:02:56,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:02:56,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:02:56,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:02:56,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:02:56,532 INFO L87 Difference]: Start difference. First operand 15862 states and 21904 transitions. Second operand has 3 states, 3 states have (on average 558.3333333333334) internal successors, (1675), 3 states have internal predecessors, (1675), 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) [2025-03-03 10:03:00,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:03:00,788 INFO L93 Difference]: Finished difference Result 33434 states and 45552 transitions. [2025-03-03 10:03:00,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:03:00,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 558.3333333333334) internal successors, (1675), 3 states have internal predecessors, (1675), 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 1694 [2025-03-03 10:03:00,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:03:00,813 INFO L225 Difference]: With dead ends: 33434 [2025-03-03 10:03:00,813 INFO L226 Difference]: Without dead ends: 15876 [2025-03-03 10:03:00,820 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 [2025-03-03 10:03:00,822 INFO L435 NwaCegarLoop]: 3767 mSDtfsCounter, 1848 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 5535 mSolverCounterSat, 1493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 4014 SdHoareTripleChecker+Invalid, 7028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1493 IncrementalHoareTripleChecker+Valid, 5535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-03-03 10:03:00,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1848 Valid, 4014 Invalid, 7028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1493 Valid, 5535 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2025-03-03 10:03:00,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15876 states. [2025-03-03 10:03:00,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15876 to 15860. [2025-03-03 10:03:00,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15860 states, 15859 states have (on average 1.2244151585850305) internal successors, (19418), 15859 states have internal predecessors, (19418), 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) [2025-03-03 10:03:00,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15860 states to 15860 states and 19418 transitions. [2025-03-03 10:03:00,993 INFO L78 Accepts]: Start accepts. Automaton has 15860 states and 19418 transitions. Word has length 1694 [2025-03-03 10:03:00,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:03:00,993 INFO L471 AbstractCegarLoop]: Abstraction has 15860 states and 19418 transitions. [2025-03-03 10:03:00,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 558.3333333333334) internal successors, (1675), 3 states have internal predecessors, (1675), 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) [2025-03-03 10:03:00,994 INFO L276 IsEmpty]: Start isEmpty. Operand 15860 states and 19418 transitions. [2025-03-03 10:03:01,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1713 [2025-03-03 10:03:01,024 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:03:01,025 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:03:01,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 10:03:01,025 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:03:01,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:03:01,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1482943985, now seen corresponding path program 1 times [2025-03-03 10:03:01,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:03:01,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381278096] [2025-03-03 10:03:01,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:03:01,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:03:01,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1712 statements into 1 equivalence classes. [2025-03-03 10:03:01,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1712 of 1712 statements. [2025-03-03 10:03:01,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:03:01,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:03:01,758 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-03 10:03:01,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:03:01,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381278096] [2025-03-03 10:03:01,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381278096] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:03:01,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:03:01,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:03:01,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675181274] [2025-03-03 10:03:01,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:03:01,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:03:01,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:03:01,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:03:01,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:03:01,762 INFO L87 Difference]: Start difference. First operand 15860 states and 19418 transitions. Second operand has 3 states, 3 states have (on average 560.6666666666666) internal successors, (1682), 2 states have internal predecessors, (1682), 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) [2025-03-03 10:03:05,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:03:05,867 INFO L93 Difference]: Finished difference Result 40242 states and 50093 transitions. [2025-03-03 10:03:05,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:03:05,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 560.6666666666666) internal successors, (1682), 2 states have internal predecessors, (1682), 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 1712 [2025-03-03 10:03:05,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:03:05,895 INFO L225 Difference]: With dead ends: 40242 [2025-03-03 10:03:05,895 INFO L226 Difference]: Without dead ends: 24384 [2025-03-03 10:03:05,902 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 [2025-03-03 10:03:05,904 INFO L435 NwaCegarLoop]: 2050 mSDtfsCounter, 1960 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 5089 mSolverCounterSat, 2002 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1960 SdHoareTripleChecker+Valid, 2197 SdHoareTripleChecker+Invalid, 7091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2002 IncrementalHoareTripleChecker+Valid, 5089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-03-03 10:03:05,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1960 Valid, 2197 Invalid, 7091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2002 Valid, 5089 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-03-03 10:03:05,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24384 states. [2025-03-03 10:03:06,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24384 to 24367. [2025-03-03 10:03:06,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24367 states, 24366 states have (on average 1.2104571944512845) internal successors, (29494), 24366 states have internal predecessors, (29494), 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) [2025-03-03 10:03:06,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24367 states to 24367 states and 29494 transitions. [2025-03-03 10:03:06,101 INFO L78 Accepts]: Start accepts. Automaton has 24367 states and 29494 transitions. Word has length 1712 [2025-03-03 10:03:06,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:03:06,101 INFO L471 AbstractCegarLoop]: Abstraction has 24367 states and 29494 transitions. [2025-03-03 10:03:06,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 560.6666666666666) internal successors, (1682), 2 states have internal predecessors, (1682), 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) [2025-03-03 10:03:06,102 INFO L276 IsEmpty]: Start isEmpty. Operand 24367 states and 29494 transitions. [2025-03-03 10:03:06,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1735 [2025-03-03 10:03:06,139 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:03:06,139 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 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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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:03:06,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 10:03:06,140 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:03:06,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:03:06,141 INFO L85 PathProgramCache]: Analyzing trace with hash -540317501, now seen corresponding path program 1 times [2025-03-03 10:03:06,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:03:06,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561903072] [2025-03-03 10:03:06,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:03:06,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:03:06,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1734 statements into 1 equivalence classes. [2025-03-03 10:03:06,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1734 of 1734 statements. [2025-03-03 10:03:06,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:03:06,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:03:06,745 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-03-03 10:03:06,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:03:06,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561903072] [2025-03-03 10:03:06,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561903072] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:03:06,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:03:06,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:03:06,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111051156] [2025-03-03 10:03:06,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:03:06,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:03:06,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:03:06,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:03:06,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:03:06,749 INFO L87 Difference]: Start difference. First operand 24367 states and 29494 transitions. Second operand has 3 states, 3 states have (on average 562.6666666666666) internal successors, (1688), 2 states have internal predecessors, (1688), 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) [2025-03-03 10:03:10,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:03:10,377 INFO L93 Difference]: Finished difference Result 58915 states and 70641 transitions. [2025-03-03 10:03:10,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:03:10,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 562.6666666666666) internal successors, (1688), 2 states have internal predecessors, (1688), 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 1734 [2025-03-03 10:03:10,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:03:10,416 INFO L225 Difference]: With dead ends: 58915 [2025-03-03 10:03:10,416 INFO L226 Difference]: Without dead ends: 34550 [2025-03-03 10:03:10,426 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 [2025-03-03 10:03:10,427 INFO L435 NwaCegarLoop]: 1070 mSDtfsCounter, 3150 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4770 mSolverCounterSat, 1207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3150 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 5977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 4770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-03-03 10:03:10,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3150 Valid, 1153 Invalid, 5977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1207 Valid, 4770 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-03-03 10:03:10,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34550 states. [2025-03-03 10:03:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34550 to 34550. [2025-03-03 10:03:10,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34550 states, 34549 states have (on average 1.136588613273901) internal successors, (39268), 34549 states have internal predecessors, (39268), 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) [2025-03-03 10:03:10,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34550 states to 34550 states and 39268 transitions. [2025-03-03 10:03:10,697 INFO L78 Accepts]: Start accepts. Automaton has 34550 states and 39268 transitions. Word has length 1734 [2025-03-03 10:03:10,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:03:10,697 INFO L471 AbstractCegarLoop]: Abstraction has 34550 states and 39268 transitions. [2025-03-03 10:03:10,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.6666666666666) internal successors, (1688), 2 states have internal predecessors, (1688), 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) [2025-03-03 10:03:10,698 INFO L276 IsEmpty]: Start isEmpty. Operand 34550 states and 39268 transitions. [2025-03-03 10:03:10,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1842 [2025-03-03 10:03:10,735 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:03:10,735 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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, 1, 1, 1, 1, 1, 1] [2025-03-03 10:03:10,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 10:03:10,736 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:03:10,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:03:10,737 INFO L85 PathProgramCache]: Analyzing trace with hash 5988168, now seen corresponding path program 1 times [2025-03-03 10:03:10,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:03:10,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973682228] [2025-03-03 10:03:10,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:03:10,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:03:10,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1841 statements into 1 equivalence classes. [2025-03-03 10:03:10,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1841 of 1841 statements. [2025-03-03 10:03:10,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:03:10,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:03:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2025-03-03 10:03:11,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:03:11,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973682228] [2025-03-03 10:03:11,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973682228] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:03:11,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:03:11,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:03:11,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380513471] [2025-03-03 10:03:11,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:03:11,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:03:11,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:03:11,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:03:11,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:03:11,728 INFO L87 Difference]: Start difference. First operand 34550 states and 39268 transitions. Second operand has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 2 states have internal predecessors, (1754), 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) [2025-03-03 10:03:15,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:03:15,979 INFO L93 Difference]: Finished difference Result 84386 states and 97206 transitions. [2025-03-03 10:03:15,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:03:15,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 2 states have internal predecessors, (1754), 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 1841 [2025-03-03 10:03:15,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:03:16,028 INFO L225 Difference]: With dead ends: 84386 [2025-03-03 10:03:16,028 INFO L226 Difference]: Without dead ends: 49838 [2025-03-03 10:03:16,038 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 [2025-03-03 10:03:16,039 INFO L435 NwaCegarLoop]: 1700 mSDtfsCounter, 1818 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 5556 mSolverCounterSat, 1396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1818 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 6952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1396 IncrementalHoareTripleChecker+Valid, 5556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-03-03 10:03:16,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1818 Valid, 1993 Invalid, 6952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1396 Valid, 5556 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2025-03-03 10:03:16,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49838 states. [2025-03-03 10:03:16,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49838 to 49829. [2025-03-03 10:03:16,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49829 states, 49828 states have (on average 1.1202536726338606) internal successors, (55820), 49828 states have internal predecessors, (55820), 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) [2025-03-03 10:03:16,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49829 states to 49829 states and 55820 transitions. [2025-03-03 10:03:16,435 INFO L78 Accepts]: Start accepts. Automaton has 49829 states and 55820 transitions. Word has length 1841 [2025-03-03 10:03:16,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:03:16,435 INFO L471 AbstractCegarLoop]: Abstraction has 49829 states and 55820 transitions. [2025-03-03 10:03:16,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 2 states have internal predecessors, (1754), 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) [2025-03-03 10:03:16,436 INFO L276 IsEmpty]: Start isEmpty. Operand 49829 states and 55820 transitions. [2025-03-03 10:03:16,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1878 [2025-03-03 10:03:16,478 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:03:16,479 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:03:16,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 10:03:16,479 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:03:16,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:03:16,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2030884287, now seen corresponding path program 1 times [2025-03-03 10:03:16,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:03:16,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675061347] [2025-03-03 10:03:16,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:03:16,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:03:16,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1877 statements into 1 equivalence classes. [2025-03-03 10:03:16,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1877 of 1877 statements. [2025-03-03 10:03:16,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:03:16,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:03:18,574 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 288 proven. 70 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-03 10:03:18,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:03:18,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675061347] [2025-03-03 10:03:18,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675061347] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 10:03:18,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372174630] [2025-03-03 10:03:18,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:03:18,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:03:18,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:03:18,577 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 10:03:18,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 10:03:18,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1877 statements into 1 equivalence classes. [2025-03-03 10:03:18,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1877 of 1877 statements. [2025-03-03 10:03:18,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:03:18,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:03:19,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 2062 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-03 10:03:19,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 10:03:20,306 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2025-03-03 10:03:20,306 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 10:03:20,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372174630] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:03:20,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 10:03:20,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-03-03 10:03:20,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487193364] [2025-03-03 10:03:20,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:03:20,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:03:20,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:03:20,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:03:20,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-03 10:03:20,310 INFO L87 Difference]: Start difference. First operand 49829 states and 55820 transitions. Second operand has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 3 states have internal predecessors, (1754), 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) [2025-03-03 10:03:24,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:03:24,235 INFO L93 Difference]: Finished difference Result 99650 states and 111632 transitions. [2025-03-03 10:03:24,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:03:24,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 3 states have internal predecessors, (1754), 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 1877 [2025-03-03 10:03:24,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:03:24,296 INFO L225 Difference]: With dead ends: 99650 [2025-03-03 10:03:24,296 INFO L226 Difference]: Without dead ends: 49823 [2025-03-03 10:03:24,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1881 GetRequests, 1876 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-03 10:03:24,328 INFO L435 NwaCegarLoop]: 3021 mSDtfsCounter, 455 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 5455 mSolverCounterSat, 701 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 3335 SdHoareTripleChecker+Invalid, 6156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 701 IncrementalHoareTripleChecker+Valid, 5455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-03-03 10:03:24,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 3335 Invalid, 6156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [701 Valid, 5455 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-03-03 10:03:24,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49823 states. [2025-03-03 10:03:24,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49823 to 49822. [2025-03-03 10:03:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49822 states, 49821 states have (on average 1.1063808434194415) internal successors, (55121), 49821 states have internal predecessors, (55121), 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) [2025-03-03 10:03:24,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49822 states to 49822 states and 55121 transitions. [2025-03-03 10:03:24,796 INFO L78 Accepts]: Start accepts. Automaton has 49822 states and 55121 transitions. Word has length 1877 [2025-03-03 10:03:24,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:03:24,797 INFO L471 AbstractCegarLoop]: Abstraction has 49822 states and 55121 transitions. [2025-03-03 10:03:24,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 3 states have internal predecessors, (1754), 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) [2025-03-03 10:03:24,798 INFO L276 IsEmpty]: Start isEmpty. Operand 49822 states and 55121 transitions. [2025-03-03 10:03:24,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2373 [2025-03-03 10:03:24,849 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:03:24,849 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, 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, 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, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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, 1, 1, 1, 1, 1, 1] [2025-03-03 10:03:24,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 10:03:25,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:03:25,051 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:03:25,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:03:25,052 INFO L85 PathProgramCache]: Analyzing trace with hash 341188944, now seen corresponding path program 1 times [2025-03-03 10:03:25,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:03:25,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548558219] [2025-03-03 10:03:25,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:03:25,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:03:25,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2372 statements into 1 equivalence classes. [2025-03-03 10:03:25,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2372 of 2372 statements. [2025-03-03 10:03:25,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:03:25,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:03:27,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 463 proven. 70 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2025-03-03 10:03:27,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:03:27,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548558219] [2025-03-03 10:03:27,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548558219] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 10:03:27,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832340145] [2025-03-03 10:03:27,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:03:27,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:03:27,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:03:27,766 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 10:03:27,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 10:03:27,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2372 statements into 1 equivalence classes. [2025-03-03 10:03:28,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2372 of 2372 statements. [2025-03-03 10:03:28,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:03:28,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:03:28,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 2572 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-03 10:03:28,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 10:03:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 943 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-03-03 10:03:28,656 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 10:03:28,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832340145] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:03:28,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 10:03:28,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-03-03 10:03:28,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748673126] [2025-03-03 10:03:28,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:03:28,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:03:28,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:03:28,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:03:28,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-03 10:03:28,660 INFO L87 Difference]: Start difference. First operand 49822 states and 55121 transitions. Second operand has 3 states, 3 states have (on average 756.0) internal successors, (2268), 3 states have internal predecessors, (2268), 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) [2025-03-03 10:03:32,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:03:32,606 INFO L93 Difference]: Finished difference Result 114926 states and 128015 transitions. [2025-03-03 10:03:32,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:03:32,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 756.0) internal successors, (2268), 3 states have internal predecessors, (2268), 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 2372 [2025-03-03 10:03:32,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:03:32,670 INFO L225 Difference]: With dead ends: 114926 [2025-03-03 10:03:32,670 INFO L226 Difference]: Without dead ends: 65106 [2025-03-03 10:03:32,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2376 GetRequests, 2371 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-03 10:03:32,700 INFO L435 NwaCegarLoop]: 1088 mSDtfsCounter, 2295 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4766 mSolverCounterSat, 1745 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2295 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 6511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1745 IncrementalHoareTripleChecker+Valid, 4766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-03-03 10:03:32,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2295 Valid, 1200 Invalid, 6511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1745 Valid, 4766 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-03-03 10:03:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65106 states. [2025-03-03 10:03:33,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65106 to 65103. [2025-03-03 10:03:33,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65103 states, 65102 states have (on average 1.1006267088568709) internal successors, (71653), 65102 states have internal predecessors, (71653), 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) [2025-03-03 10:03:33,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65103 states to 65103 states and 71653 transitions. [2025-03-03 10:03:33,172 INFO L78 Accepts]: Start accepts. Automaton has 65103 states and 71653 transitions. Word has length 2372 [2025-03-03 10:03:33,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:03:33,173 INFO L471 AbstractCegarLoop]: Abstraction has 65103 states and 71653 transitions. [2025-03-03 10:03:33,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 756.0) internal successors, (2268), 3 states have internal predecessors, (2268), 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) [2025-03-03 10:03:33,173 INFO L276 IsEmpty]: Start isEmpty. Operand 65103 states and 71653 transitions. [2025-03-03 10:03:33,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2586 [2025-03-03 10:03:33,238 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:03:33,239 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:03:33,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-03 10:03:33,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-03-03 10:03:33,439 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:03:33,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:03:33,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1709479148, now seen corresponding path program 1 times [2025-03-03 10:03:33,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:03:33,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149147591] [2025-03-03 10:03:33,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:03:33,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:03:33,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2585 statements into 1 equivalence classes. [2025-03-03 10:03:33,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2585 of 2585 statements. [2025-03-03 10:03:33,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:03:33,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:03:35,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1295 backedges. 533 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2025-03-03 10:03:35,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:03:35,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149147591] [2025-03-03 10:03:35,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149147591] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:03:35,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:03:35,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:03:35,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461195419] [2025-03-03 10:03:35,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:03:35,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:03:35,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:03:35,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:03:35,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:03:35,775 INFO L87 Difference]: Start difference. First operand 65103 states and 71653 transitions. Second operand has 3 states, 3 states have (on average 608.3333333333334) internal successors, (1825), 3 states have internal predecessors, (1825), 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)