./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-84.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-84.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a38816720abe2c19fbd70680349ed59f349bca0e0acac641469a31f37cd07bb9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:44:47,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:44:47,895 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 02:44:47,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:44:47,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:44:47,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:44:47,924 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:44:47,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:44:47,925 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:44:47,925 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:44:47,926 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:44:47,926 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:44:47,926 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:44:47,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:44:47,927 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:44:47,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:44:47,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:44:47,927 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:44:47,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 02:44:47,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:44:47,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:44:47,927 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:44:47,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:44:47,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:44:47,928 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:44:47,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:44:47,928 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:44:47,928 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:44:47,928 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:44:47,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:44:47,928 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:44:47,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:44:47,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:44:47,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:44:47,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:44:47,929 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:44:47,929 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:44:47,929 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 02:44:47,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 02:44:47,929 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:44:47,929 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:44:47,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:44:47,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:44:47,929 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38816720abe2c19fbd70680349ed59f349bca0e0acac641469a31f37cd07bb9 [2025-02-06 02:44:48,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:44:48,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:44:48,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:44:48,145 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:44:48,145 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:44:48,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-84.i [2025-02-06 02:44:49,246 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3c4add67e/5efd985d9d464e3b9876126e80458f0a/FLAGfeb15ad34 [2025-02-06 02:44:49,550 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:44:49,550 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-84.i [2025-02-06 02:44:49,566 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3c4add67e/5efd985d9d464e3b9876126e80458f0a/FLAGfeb15ad34 [2025-02-06 02:44:49,815 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3c4add67e/5efd985d9d464e3b9876126e80458f0a [2025-02-06 02:44:49,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:44:49,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:44:49,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:44:49,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:44:49,826 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:44:49,827 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:44:49" (1/1) ... [2025-02-06 02:44:49,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b69775d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:49, skipping insertion in model container [2025-02-06 02:44:49,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:44:49" (1/1) ... [2025-02-06 02:44:49,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:44:49,957 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-84.i[916,929] [2025-02-06 02:44:50,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:44:50,106 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:44:50,112 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-84.i[916,929] [2025-02-06 02:44:50,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:44:50,214 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:44:50,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50 WrapperNode [2025-02-06 02:44:50,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:44:50,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:44:50,217 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:44:50,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:44:50,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (1/1) ... [2025-02-06 02:44:50,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (1/1) ... [2025-02-06 02:44:50,335 INFO L138 Inliner]: procedures = 26, calls = 90, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 684 [2025-02-06 02:44:50,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:44:50,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:44:50,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:44:50,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:44:50,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (1/1) ... [2025-02-06 02:44:50,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (1/1) ... [2025-02-06 02:44:50,375 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (1/1) ... [2025-02-06 02:44:50,464 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 02:44:50,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (1/1) ... [2025-02-06 02:44:50,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (1/1) ... [2025-02-06 02:44:50,489 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (1/1) ... [2025-02-06 02:44:50,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (1/1) ... [2025-02-06 02:44:50,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (1/1) ... [2025-02-06 02:44:50,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (1/1) ... [2025-02-06 02:44:50,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:44:50,524 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:44:50,524 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:44:50,525 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:44:50,526 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (1/1) ... [2025-02-06 02:44:50,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:44:50,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:44:50,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 02:44:50,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 02:44:50,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:44:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:44:50,573 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:44:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 02:44:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:44:50,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:44:50,693 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:44:50,694 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:44:51,613 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L652: havoc property_#t~bitwise52#1;havoc property_#t~short53#1;havoc property_#t~bitwise54#1;havoc property_#t~short55#1;havoc property_#t~ite57#1;havoc property_#t~bitwise56#1;havoc property_#t~short58#1;havoc property_#t~bitwise59#1;havoc property_#t~short60#1; [2025-02-06 02:44:51,740 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2025-02-06 02:44:51,740 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:44:51,765 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:44:51,766 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 02:44:51,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:44:51 BoogieIcfgContainer [2025-02-06 02:44:51,766 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:44:51,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:44:51,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:44:51,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:44:51,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:44:49" (1/3) ... [2025-02-06 02:44:51,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b80ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:44:51, skipping insertion in model container [2025-02-06 02:44:51,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:44:50" (2/3) ... [2025-02-06 02:44:51,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b80ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:44:51, skipping insertion in model container [2025-02-06 02:44:51,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:44:51" (3/3) ... [2025-02-06 02:44:51,775 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-84.i [2025-02-06 02:44:51,786 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:44:51,789 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-84.i that has 2 procedures, 281 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:44:51,859 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:44:51,869 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;@2b220c61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:44:51,870 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:44:51,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 201 states have (on average 1.5621890547263682) internal successors, (314), 202 states have internal predecessors, (314), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2025-02-06 02:44:51,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2025-02-06 02:44:51,893 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:51,894 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:44:51,894 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:51,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:51,898 INFO L85 PathProgramCache]: Analyzing trace with hash -891549491, now seen corresponding path program 1 times [2025-02-06 02:44:51,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:51,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472950754] [2025-02-06 02:44:51,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:51,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:52,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 512 statements into 1 equivalence classes. [2025-02-06 02:44:52,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 512 of 512 statements. [2025-02-06 02:44:52,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:52,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:52,772 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-02-06 02:44:52,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:52,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472950754] [2025-02-06 02:44:52,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472950754] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:52,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:44:52,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:44:52,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353259308] [2025-02-06 02:44:52,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:52,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:44:52,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:52,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:44:52,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:44:52,803 INFO L87 Difference]: Start difference. First operand has 281 states, 201 states have (on average 1.5621890547263682) internal successors, (314), 202 states have internal predecessors, (314), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:44:52,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:44:52,977 INFO L93 Difference]: Finished difference Result 821 states and 1528 transitions. [2025-02-06 02:44:52,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:44:52,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 512 [2025-02-06 02:44:52,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:44:52,993 INFO L225 Difference]: With dead ends: 821 [2025-02-06 02:44:52,994 INFO L226 Difference]: Without dead ends: 543 [2025-02-06 02:44:53,000 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 [2025-02-06 02:44:53,003 INFO L435 NwaCegarLoop]: 584 mSDtfsCounter, 432 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:44:53,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 1011 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:44:53,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2025-02-06 02:44:53,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 351. [2025-02-06 02:44:53,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 272 states have (on average 1.6029411764705883) internal successors, (436), 272 states have internal predecessors, (436), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2025-02-06 02:44:53,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 590 transitions. [2025-02-06 02:44:53,088 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 590 transitions. Word has length 512 [2025-02-06 02:44:53,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:44:53,093 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 590 transitions. [2025-02-06 02:44:53,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:44:53,093 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 590 transitions. [2025-02-06 02:44:53,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2025-02-06 02:44:53,104 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:53,104 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:44:53,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 02:44:53,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:53,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:53,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1522008116, now seen corresponding path program 1 times [2025-02-06 02:44:53,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:53,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362481083] [2025-02-06 02:44:53,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:53,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:53,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 512 statements into 1 equivalence classes. [2025-02-06 02:44:53,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 512 of 512 statements. [2025-02-06 02:44:53,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:53,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:55,012 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-02-06 02:44:55,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:55,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362481083] [2025-02-06 02:44:55,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362481083] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:55,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:44:55,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 02:44:55,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272739916] [2025-02-06 02:44:55,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:55,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:44:55,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:55,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:44:55,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:44:55,017 INFO L87 Difference]: Start difference. First operand 351 states and 590 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:44:55,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:44:55,485 INFO L93 Difference]: Finished difference Result 1048 states and 1765 transitions. [2025-02-06 02:44:55,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:44:55,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 512 [2025-02-06 02:44:55,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:44:55,492 INFO L225 Difference]: With dead ends: 1048 [2025-02-06 02:44:55,493 INFO L226 Difference]: Without dead ends: 700 [2025-02-06 02:44:55,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:44:55,496 INFO L435 NwaCegarLoop]: 440 mSDtfsCounter, 327 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 02:44:55,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1576 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 02:44:55,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2025-02-06 02:44:55,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 484. [2025-02-06 02:44:55,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 327 states have (on average 1.510703363914373) internal successors, (494), 327 states have internal predecessors, (494), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2025-02-06 02:44:55,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 802 transitions. [2025-02-06 02:44:55,567 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 802 transitions. Word has length 512 [2025-02-06 02:44:55,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:44:55,568 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 802 transitions. [2025-02-06 02:44:55,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:44:55,568 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 802 transitions. [2025-02-06 02:44:55,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2025-02-06 02:44:55,571 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:55,571 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:44:55,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 02:44:55,572 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:55,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:55,572 INFO L85 PathProgramCache]: Analyzing trace with hash 152037041, now seen corresponding path program 1 times [2025-02-06 02:44:55,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:55,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899765107] [2025-02-06 02:44:55,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:55,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:55,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 514 statements into 1 equivalence classes. [2025-02-06 02:44:55,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 514 of 514 statements. [2025-02-06 02:44:55,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:55,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:44:57,364 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-02-06 02:44:57,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:44:57,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899765107] [2025-02-06 02:44:57,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899765107] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:44:57,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:44:57,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 02:44:57,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278577377] [2025-02-06 02:44:57,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:44:57,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 02:44:57,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:44:57,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 02:44:57,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 02:44:57,366 INFO L87 Difference]: Start difference. First operand 484 states and 802 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2025-02-06 02:44:58,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:44:58,737 INFO L93 Difference]: Finished difference Result 1872 states and 3096 transitions. [2025-02-06 02:44:58,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 02:44:58,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 514 [2025-02-06 02:44:58,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:44:58,745 INFO L225 Difference]: With dead ends: 1872 [2025-02-06 02:44:58,745 INFO L226 Difference]: Without dead ends: 1524 [2025-02-06 02:44:58,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2025-02-06 02:44:58,748 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 2098 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:44:58,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 2363 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-06 02:44:58,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2025-02-06 02:44:58,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1179. [2025-02-06 02:44:58,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 915 states have (on average 1.5759562841530055) internal successors, (1442), 917 states have internal predecessors, (1442), 257 states have call successors, (257), 6 states have call predecessors, (257), 6 states have return successors, (257), 255 states have call predecessors, (257), 257 states have call successors, (257) [2025-02-06 02:44:58,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1956 transitions. [2025-02-06 02:44:58,851 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1956 transitions. Word has length 514 [2025-02-06 02:44:58,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:44:58,852 INFO L471 AbstractCegarLoop]: Abstraction has 1179 states and 1956 transitions. [2025-02-06 02:44:58,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2025-02-06 02:44:58,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1956 transitions. [2025-02-06 02:44:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2025-02-06 02:44:58,855 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:44:58,855 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:44:58,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 02:44:58,856 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:44:58,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:44:58,856 INFO L85 PathProgramCache]: Analyzing trace with hash 845138738, now seen corresponding path program 1 times [2025-02-06 02:44:58,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:44:58,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109889658] [2025-02-06 02:44:58,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:44:58,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:44:58,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 514 statements into 1 equivalence classes. [2025-02-06 02:44:59,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 514 of 514 statements. [2025-02-06 02:44:59,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:44:59,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:01,260 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 33 proven. 195 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-02-06 02:45:01,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:01,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109889658] [2025-02-06 02:45:01,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109889658] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:45:01,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800417242] [2025-02-06 02:45:01,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:01,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:01,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:45:01,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:45:01,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 02:45:01,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 514 statements into 1 equivalence classes. [2025-02-06 02:45:01,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 514 of 514 statements. [2025-02-06 02:45:01,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:01,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:01,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:45:01,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:45:01,770 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 2388 proven. 24 refuted. 0 times theorem prover too weak. 9292 trivial. 0 not checked. [2025-02-06 02:45:01,770 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:45:02,130 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 204 proven. 24 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-02-06 02:45:02,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800417242] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:45:02,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:45:02,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 17 [2025-02-06 02:45:02,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984253456] [2025-02-06 02:45:02,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:45:02,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-06 02:45:02,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:02,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-06 02:45:02,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2025-02-06 02:45:02,137 INFO L87 Difference]: Start difference. First operand 1179 states and 1956 transitions. Second operand has 17 states, 17 states have (on average 13.588235294117647) internal successors, (231), 17 states have internal predecessors, (231), 6 states have call successors, (162), 2 states have call predecessors, (162), 4 states have return successors, (163), 6 states have call predecessors, (163), 6 states have call successors, (163) [2025-02-06 02:45:07,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:07,124 INFO L93 Difference]: Finished difference Result 4900 states and 8146 transitions. [2025-02-06 02:45:07,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-02-06 02:45:07,124 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 13.588235294117647) internal successors, (231), 17 states have internal predecessors, (231), 6 states have call successors, (162), 2 states have call predecessors, (162), 4 states have return successors, (163), 6 states have call predecessors, (163), 6 states have call successors, (163) Word has length 514 [2025-02-06 02:45:07,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:07,140 INFO L225 Difference]: With dead ends: 4900 [2025-02-06 02:45:07,140 INFO L226 Difference]: Without dead ends: 3861 [2025-02-06 02:45:07,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1071 GetRequests, 1029 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=393, Invalid=1413, Unknown=0, NotChecked=0, Total=1806 [2025-02-06 02:45:07,144 INFO L435 NwaCegarLoop]: 568 mSDtfsCounter, 6946 mSDsluCounter, 3747 mSDsCounter, 0 mSdLazyCounter, 3430 mSolverCounterSat, 726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7013 SdHoareTripleChecker+Valid, 4315 SdHoareTripleChecker+Invalid, 4156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 3430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:07,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7013 Valid, 4315 Invalid, 4156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [726 Valid, 3430 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2025-02-06 02:45:07,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2025-02-06 02:45:07,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 2138. [2025-02-06 02:45:07,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2138 states, 1775 states have (on average 1.6033802816901408) internal successors, (2846), 1778 states have internal predecessors, (2846), 347 states have call successors, (347), 15 states have call predecessors, (347), 15 states have return successors, (347), 344 states have call predecessors, (347), 347 states have call successors, (347) [2025-02-06 02:45:07,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 3540 transitions. [2025-02-06 02:45:07,275 INFO L78 Accepts]: Start accepts. Automaton has 2138 states and 3540 transitions. Word has length 514 [2025-02-06 02:45:07,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:07,277 INFO L471 AbstractCegarLoop]: Abstraction has 2138 states and 3540 transitions. [2025-02-06 02:45:07,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 13.588235294117647) internal successors, (231), 17 states have internal predecessors, (231), 6 states have call successors, (162), 2 states have call predecessors, (162), 4 states have return successors, (163), 6 states have call predecessors, (163), 6 states have call successors, (163) [2025-02-06 02:45:07,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2138 states and 3540 transitions. [2025-02-06 02:45:07,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2025-02-06 02:45:07,281 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:07,282 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:45:07,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 02:45:07,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:07,483 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:07,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:07,483 INFO L85 PathProgramCache]: Analyzing trace with hash -844940238, now seen corresponding path program 1 times [2025-02-06 02:45:07,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:07,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916904899] [2025-02-06 02:45:07,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:07,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:07,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 514 statements into 1 equivalence classes. [2025-02-06 02:45:07,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 514 of 514 statements. [2025-02-06 02:45:07,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:07,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:08,270 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-02-06 02:45:08,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:08,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916904899] [2025-02-06 02:45:08,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916904899] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:45:08,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:45:08,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 02:45:08,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176433090] [2025-02-06 02:45:08,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:45:08,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 02:45:08,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:08,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 02:45:08,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:45:08,273 INFO L87 Difference]: Start difference. First operand 2138 states and 3540 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:45:09,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:09,328 INFO L93 Difference]: Finished difference Result 6525 states and 10845 transitions. [2025-02-06 02:45:09,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 02:45:09,329 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 514 [2025-02-06 02:45:09,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:09,346 INFO L225 Difference]: With dead ends: 6525 [2025-02-06 02:45:09,346 INFO L226 Difference]: Without dead ends: 4535 [2025-02-06 02:45:09,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-02-06 02:45:09,352 INFO L435 NwaCegarLoop]: 794 mSDtfsCounter, 1222 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:09,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 3117 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-06 02:45:09,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4535 states. [2025-02-06 02:45:09,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4535 to 3327. [2025-02-06 02:45:09,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3327 states, 2776 states have (on average 1.6069884726224783) internal successors, (4461), 2781 states have internal predecessors, (4461), 527 states have call successors, (527), 23 states have call predecessors, (527), 23 states have return successors, (527), 522 states have call predecessors, (527), 527 states have call successors, (527) [2025-02-06 02:45:09,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 5515 transitions. [2025-02-06 02:45:09,577 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 5515 transitions. Word has length 514 [2025-02-06 02:45:09,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:09,578 INFO L471 AbstractCegarLoop]: Abstraction has 3327 states and 5515 transitions. [2025-02-06 02:45:09,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:45:09,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 5515 transitions. [2025-02-06 02:45:09,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2025-02-06 02:45:09,584 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:09,585 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:45:09,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 02:45:09,588 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:09,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:09,588 INFO L85 PathProgramCache]: Analyzing trace with hash 47710226, now seen corresponding path program 1 times [2025-02-06 02:45:09,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:09,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714197012] [2025-02-06 02:45:09,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:09,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:09,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 514 statements into 1 equivalence classes. [2025-02-06 02:45:10,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 514 of 514 statements. [2025-02-06 02:45:10,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:10,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:11,156 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 39 proven. 189 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-02-06 02:45:11,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:11,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714197012] [2025-02-06 02:45:11,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714197012] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:45:11,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560545183] [2025-02-06 02:45:11,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:11,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:11,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:45:11,161 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:45:11,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 02:45:11,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 514 statements into 1 equivalence classes. [2025-02-06 02:45:11,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 514 of 514 statements. [2025-02-06 02:45:11,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:11,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:11,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:45:11,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:45:11,563 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 2848 proven. 30 refuted. 0 times theorem prover too weak. 8826 trivial. 0 not checked. [2025-02-06 02:45:11,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:45:11,873 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 198 proven. 30 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-02-06 02:45:11,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560545183] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:45:11,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:45:11,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 11 [2025-02-06 02:45:11,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827527276] [2025-02-06 02:45:11,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:45:11,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 02:45:11,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:11,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 02:45:11,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-02-06 02:45:11,877 INFO L87 Difference]: Start difference. First operand 3327 states and 5515 transitions. Second operand has 11 states, 11 states have (on average 18.90909090909091) internal successors, (208), 11 states have internal predecessors, (208), 4 states have call successors, (164), 2 states have call predecessors, (164), 4 states have return successors, (165), 4 states have call predecessors, (165), 4 states have call successors, (165) [2025-02-06 02:45:13,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:13,268 INFO L93 Difference]: Finished difference Result 5209 states and 8558 transitions. [2025-02-06 02:45:13,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 02:45:13,269 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 18.90909090909091) internal successors, (208), 11 states have internal predecessors, (208), 4 states have call successors, (164), 2 states have call predecessors, (164), 4 states have return successors, (165), 4 states have call predecessors, (165), 4 states have call successors, (165) Word has length 514 [2025-02-06 02:45:13,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:13,282 INFO L225 Difference]: With dead ends: 5209 [2025-02-06 02:45:13,282 INFO L226 Difference]: Without dead ends: 2030 [2025-02-06 02:45:13,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1052 GetRequests, 1025 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2025-02-06 02:45:13,291 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 1914 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:13,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 2254 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-06 02:45:13,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2025-02-06 02:45:13,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1256. [2025-02-06 02:45:13,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 929 states have (on average 1.503767491926803) internal successors, (1397), 929 states have internal predecessors, (1397), 308 states have call successors, (308), 18 states have call predecessors, (308), 18 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) [2025-02-06 02:45:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 2013 transitions. [2025-02-06 02:45:13,392 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 2013 transitions. Word has length 514 [2025-02-06 02:45:13,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:13,394 INFO L471 AbstractCegarLoop]: Abstraction has 1256 states and 2013 transitions. [2025-02-06 02:45:13,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.90909090909091) internal successors, (208), 11 states have internal predecessors, (208), 4 states have call successors, (164), 2 states have call predecessors, (164), 4 states have return successors, (165), 4 states have call predecessors, (165), 4 states have call successors, (165) [2025-02-06 02:45:13,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 2013 transitions. [2025-02-06 02:45:13,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2025-02-06 02:45:13,397 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:13,398 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:45:13,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 02:45:13,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:13,599 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:13,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:13,600 INFO L85 PathProgramCache]: Analyzing trace with hash -356323122, now seen corresponding path program 1 times [2025-02-06 02:45:13,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:13,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227790813] [2025-02-06 02:45:13,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:13,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:13,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 514 statements into 1 equivalence classes. [2025-02-06 02:45:13,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 514 of 514 statements. [2025-02-06 02:45:13,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:13,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:14,804 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-02-06 02:45:14,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:14,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227790813] [2025-02-06 02:45:14,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227790813] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:45:14,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:45:14,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 02:45:14,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199528735] [2025-02-06 02:45:14,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:45:14,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 02:45:14,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:14,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 02:45:14,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:45:14,806 INFO L87 Difference]: Start difference. First operand 1256 states and 2013 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:45:15,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:15,850 INFO L93 Difference]: Finished difference Result 3675 states and 5965 transitions. [2025-02-06 02:45:15,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 02:45:15,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 514 [2025-02-06 02:45:15,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:15,860 INFO L225 Difference]: With dead ends: 3675 [2025-02-06 02:45:15,860 INFO L226 Difference]: Without dead ends: 2575 [2025-02-06 02:45:15,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2025-02-06 02:45:15,863 INFO L435 NwaCegarLoop]: 427 mSDtfsCounter, 1779 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:15,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 1598 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-06 02:45:15,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2575 states. [2025-02-06 02:45:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2575 to 1959. [2025-02-06 02:45:16,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1959 states, 1595 states have (on average 1.54858934169279) internal successors, (2470), 1598 states have internal predecessors, (2470), 341 states have call successors, (341), 22 states have call predecessors, (341), 22 states have return successors, (341), 338 states have call predecessors, (341), 341 states have call successors, (341) [2025-02-06 02:45:16,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3152 transitions. [2025-02-06 02:45:16,047 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3152 transitions. Word has length 514 [2025-02-06 02:45:16,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:16,048 INFO L471 AbstractCegarLoop]: Abstraction has 1959 states and 3152 transitions. [2025-02-06 02:45:16,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:45:16,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3152 transitions. [2025-02-06 02:45:16,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2025-02-06 02:45:16,053 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:16,053 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:45:16,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 02:45:16,054 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:16,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:16,054 INFO L85 PathProgramCache]: Analyzing trace with hash -115782993, now seen corresponding path program 1 times [2025-02-06 02:45:16,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:16,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429132712] [2025-02-06 02:45:16,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:16,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:16,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 514 statements into 1 equivalence classes. [2025-02-06 02:45:16,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 514 of 514 statements. [2025-02-06 02:45:16,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:16,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:17,322 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 39 proven. 189 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-02-06 02:45:17,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:17,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429132712] [2025-02-06 02:45:17,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429132712] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:45:17,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763046871] [2025-02-06 02:45:17,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:17,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:17,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:45:17,327 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:45:17,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 02:45:17,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 514 statements into 1 equivalence classes. [2025-02-06 02:45:17,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 514 of 514 statements. [2025-02-06 02:45:17,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:17,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:17,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 02:45:17,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:45:18,459 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 5922 proven. 117 refuted. 0 times theorem prover too weak. 5665 trivial. 0 not checked. [2025-02-06 02:45:18,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:45:18,809 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 111 proven. 117 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-02-06 02:45:18,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763046871] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:45:18,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:45:18,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2025-02-06 02:45:18,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600142317] [2025-02-06 02:45:18,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:45:18,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-06 02:45:18,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:18,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-06 02:45:18,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2025-02-06 02:45:18,812 INFO L87 Difference]: Start difference. First operand 1959 states and 3152 transitions. Second operand has 17 states, 17 states have (on average 16.941176470588236) internal successors, (288), 17 states have internal predecessors, (288), 6 states have call successors, (231), 3 states have call predecessors, (231), 6 states have return successors, (231), 6 states have call predecessors, (231), 6 states have call successors, (231) [2025-02-06 02:45:21,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:21,342 INFO L93 Difference]: Finished difference Result 5841 states and 9542 transitions. [2025-02-06 02:45:21,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-02-06 02:45:21,343 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 16.941176470588236) internal successors, (288), 17 states have internal predecessors, (288), 6 states have call successors, (231), 3 states have call predecessors, (231), 6 states have return successors, (231), 6 states have call predecessors, (231), 6 states have call successors, (231) Word has length 514 [2025-02-06 02:45:21,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:21,358 INFO L225 Difference]: With dead ends: 5841 [2025-02-06 02:45:21,358 INFO L226 Difference]: Without dead ends: 4038 [2025-02-06 02:45:21,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1073 GetRequests, 1024 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=597, Invalid=1953, Unknown=0, NotChecked=0, Total=2550 [2025-02-06 02:45:21,364 INFO L435 NwaCegarLoop]: 416 mSDtfsCounter, 7579 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 2936 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7581 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 4263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2936 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:21,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7581 Valid, 2756 Invalid, 4263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2936 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-06 02:45:21,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4038 states. [2025-02-06 02:45:21,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4038 to 3448. [2025-02-06 02:45:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 2988 states have (on average 1.5846720214190093) internal successors, (4735), 2992 states have internal predecessors, (4735), 429 states have call successors, (429), 30 states have call predecessors, (429), 30 states have return successors, (429), 425 states have call predecessors, (429), 429 states have call successors, (429) [2025-02-06 02:45:21,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 5593 transitions. [2025-02-06 02:45:21,543 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 5593 transitions. Word has length 514 [2025-02-06 02:45:21,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:21,543 INFO L471 AbstractCegarLoop]: Abstraction has 3448 states and 5593 transitions. [2025-02-06 02:45:21,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 16.941176470588236) internal successors, (288), 17 states have internal predecessors, (288), 6 states have call successors, (231), 3 states have call predecessors, (231), 6 states have return successors, (231), 6 states have call predecessors, (231), 6 states have call successors, (231) [2025-02-06 02:45:21,548 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 5593 transitions. [2025-02-06 02:45:21,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2025-02-06 02:45:21,552 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:21,552 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:45:21,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 02:45:21,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:21,753 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:21,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:21,754 INFO L85 PathProgramCache]: Analyzing trace with hash -269708975, now seen corresponding path program 1 times [2025-02-06 02:45:21,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:21,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784782719] [2025-02-06 02:45:21,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:21,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:21,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 514 statements into 1 equivalence classes. [2025-02-06 02:45:21,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 514 of 514 statements. [2025-02-06 02:45:21,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:21,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:22,387 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-02-06 02:45:22,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:22,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784782719] [2025-02-06 02:45:22,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784782719] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:45:22,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:45:22,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 02:45:22,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369051734] [2025-02-06 02:45:22,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:45:22,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:45:22,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:22,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:45:22,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:45:22,390 INFO L87 Difference]: Start difference. First operand 3448 states and 5593 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:45:22,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:22,793 INFO L93 Difference]: Finished difference Result 10861 states and 17717 transitions. [2025-02-06 02:45:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:45:22,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 514 [2025-02-06 02:45:22,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:22,818 INFO L225 Difference]: With dead ends: 10861 [2025-02-06 02:45:22,818 INFO L226 Difference]: Without dead ends: 7593 [2025-02-06 02:45:22,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:45:22,825 INFO L435 NwaCegarLoop]: 419 mSDtfsCounter, 835 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:22,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 1462 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:45:22,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7593 states. [2025-02-06 02:45:23,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7593 to 6607. [2025-02-06 02:45:23,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6607 states, 5944 states have (on average 1.5970726783310902) internal successors, (9493), 5956 states have internal predecessors, (9493), 621 states have call successors, (621), 41 states have call predecessors, (621), 41 states have return successors, (621), 609 states have call predecessors, (621), 621 states have call successors, (621) [2025-02-06 02:45:23,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6607 states to 6607 states and 10735 transitions. [2025-02-06 02:45:23,058 INFO L78 Accepts]: Start accepts. Automaton has 6607 states and 10735 transitions. Word has length 514 [2025-02-06 02:45:23,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:23,059 INFO L471 AbstractCegarLoop]: Abstraction has 6607 states and 10735 transitions. [2025-02-06 02:45:23,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:45:23,060 INFO L276 IsEmpty]: Start isEmpty. Operand 6607 states and 10735 transitions. [2025-02-06 02:45:23,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2025-02-06 02:45:23,064 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:23,064 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:45:23,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 02:45:23,065 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:23,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:23,065 INFO L85 PathProgramCache]: Analyzing trace with hash 167136611, now seen corresponding path program 1 times [2025-02-06 02:45:23,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:23,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726351327] [2025-02-06 02:45:23,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:23,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:23,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 515 statements into 1 equivalence classes. [2025-02-06 02:45:23,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 515 of 515 statements. [2025-02-06 02:45:23,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:23,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:23,418 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-02-06 02:45:23,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:23,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726351327] [2025-02-06 02:45:23,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726351327] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:45:23,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:45:23,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:45:23,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364578535] [2025-02-06 02:45:23,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:45:23,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:45:23,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:23,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:45:23,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:45:23,420 INFO L87 Difference]: Start difference. First operand 6607 states and 10735 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2025-02-06 02:45:23,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:23,672 INFO L93 Difference]: Finished difference Result 10977 states and 17819 transitions. [2025-02-06 02:45:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:45:23,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 515 [2025-02-06 02:45:23,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:23,699 INFO L225 Difference]: With dead ends: 10977 [2025-02-06 02:45:23,699 INFO L226 Difference]: Without dead ends: 7865 [2025-02-06 02:45:23,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:45:23,706 INFO L435 NwaCegarLoop]: 554 mSDtfsCounter, 390 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:23,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1360 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:45:23,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7865 states. [2025-02-06 02:45:24,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7865 to 7863. [2025-02-06 02:45:24,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7863 states, 6958 states have (on average 1.5799080195458466) internal successors, (10993), 6972 states have internal predecessors, (10993), 849 states have call successors, (849), 55 states have call predecessors, (849), 55 states have return successors, (849), 835 states have call predecessors, (849), 849 states have call successors, (849) [2025-02-06 02:45:24,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7863 states to 7863 states and 12691 transitions. [2025-02-06 02:45:24,066 INFO L78 Accepts]: Start accepts. Automaton has 7863 states and 12691 transitions. Word has length 515 [2025-02-06 02:45:24,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:24,067 INFO L471 AbstractCegarLoop]: Abstraction has 7863 states and 12691 transitions. [2025-02-06 02:45:24,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2025-02-06 02:45:24,067 INFO L276 IsEmpty]: Start isEmpty. Operand 7863 states and 12691 transitions. [2025-02-06 02:45:24,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2025-02-06 02:45:24,071 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:24,071 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:45:24,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 02:45:24,071 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:24,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:24,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1049225082, now seen corresponding path program 1 times [2025-02-06 02:45:24,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:24,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4311810] [2025-02-06 02:45:24,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:24,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:24,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 515 statements into 1 equivalence classes. [2025-02-06 02:45:24,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 515 of 515 statements. [2025-02-06 02:45:24,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:24,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:24,619 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-02-06 02:45:24,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:24,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4311810] [2025-02-06 02:45:24,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4311810] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:45:24,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:45:24,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:45:24,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658987677] [2025-02-06 02:45:24,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:45:24,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:45:24,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:24,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:45:24,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:45:24,621 INFO L87 Difference]: Start difference. First operand 7863 states and 12691 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:45:25,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:25,033 INFO L93 Difference]: Finished difference Result 17129 states and 27665 transitions. [2025-02-06 02:45:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:45:25,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 515 [2025-02-06 02:45:25,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:25,061 INFO L225 Difference]: With dead ends: 17129 [2025-02-06 02:45:25,061 INFO L226 Difference]: Without dead ends: 9578 [2025-02-06 02:45:25,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:45:25,075 INFO L435 NwaCegarLoop]: 642 mSDtfsCounter, 615 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:25,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 1685 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 02:45:25,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9578 states. [2025-02-06 02:45:25,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9578 to 4424. [2025-02-06 02:45:25,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 3793 states have (on average 1.5496968099129975) internal successors, (5878), 3797 states have internal predecessors, (5878), 583 states have call successors, (583), 47 states have call predecessors, (583), 47 states have return successors, (583), 579 states have call predecessors, (583), 583 states have call successors, (583) [2025-02-06 02:45:25,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 7044 transitions. [2025-02-06 02:45:25,276 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 7044 transitions. Word has length 515 [2025-02-06 02:45:25,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:25,277 INFO L471 AbstractCegarLoop]: Abstraction has 4424 states and 7044 transitions. [2025-02-06 02:45:25,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:45:25,277 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 7044 transitions. [2025-02-06 02:45:25,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2025-02-06 02:45:25,279 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:25,280 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:45:25,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 02:45:25,280 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:25,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:25,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1759487504, now seen corresponding path program 1 times [2025-02-06 02:45:25,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:25,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353848324] [2025-02-06 02:45:25,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:25,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:25,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 517 statements into 1 equivalence classes. [2025-02-06 02:45:26,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 517 of 517 statements. [2025-02-06 02:45:26,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:26,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 33 proven. 195 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-02-06 02:45:27,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:27,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353848324] [2025-02-06 02:45:27,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353848324] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:45:27,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594592512] [2025-02-06 02:45:27,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:27,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:27,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:45:27,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:45:27,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 02:45:27,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 517 statements into 1 equivalence classes. [2025-02-06 02:45:27,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 517 of 517 statements. [2025-02-06 02:45:27,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:27,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:27,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 02:45:27,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:45:28,563 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 5422 proven. 147 refuted. 0 times theorem prover too weak. 6135 trivial. 0 not checked. [2025-02-06 02:45:28,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:45:29,007 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 81 proven. 147 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-02-06 02:45:29,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594592512] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:45:29,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:45:29,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 18 [2025-02-06 02:45:29,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117254522] [2025-02-06 02:45:29,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:45:29,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 02:45:29,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:29,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 02:45:29,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2025-02-06 02:45:29,010 INFO L87 Difference]: Start difference. First operand 4424 states and 7044 transitions. Second operand has 18 states, 18 states have (on average 19.11111111111111) internal successors, (344), 18 states have internal predecessors, (344), 6 states have call successors, (231), 3 states have call predecessors, (231), 6 states have return successors, (231), 6 states have call predecessors, (231), 6 states have call successors, (231) [2025-02-06 02:45:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:32,053 INFO L93 Difference]: Finished difference Result 22575 states and 35911 transitions. [2025-02-06 02:45:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2025-02-06 02:45:32,054 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 19.11111111111111) internal successors, (344), 18 states have internal predecessors, (344), 6 states have call successors, (231), 3 states have call predecessors, (231), 6 states have return successors, (231), 6 states have call predecessors, (231), 6 states have call successors, (231) Word has length 517 [2025-02-06 02:45:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:32,096 INFO L225 Difference]: With dead ends: 22575 [2025-02-06 02:45:32,097 INFO L226 Difference]: Without dead ends: 18360 [2025-02-06 02:45:32,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1106 GetRequests, 1036 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1821 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1045, Invalid=4067, Unknown=0, NotChecked=0, Total=5112 [2025-02-06 02:45:32,112 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 3812 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 2498 mSolverCounterSat, 1094 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3825 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 3592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1094 IncrementalHoareTripleChecker+Valid, 2498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:32,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3825 Valid, 2598 Invalid, 3592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1094 Valid, 2498 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-06 02:45:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18360 states. [2025-02-06 02:45:32,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18360 to 11140. [2025-02-06 02:45:32,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11140 states, 9338 states have (on average 1.5100663953737417) internal successors, (14101), 9344 states have internal predecessors, (14101), 1625 states have call successors, (1625), 176 states have call predecessors, (1625), 176 states have return successors, (1625), 1619 states have call predecessors, (1625), 1625 states have call successors, (1625) [2025-02-06 02:45:32,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11140 states to 11140 states and 17351 transitions. [2025-02-06 02:45:32,695 INFO L78 Accepts]: Start accepts. Automaton has 11140 states and 17351 transitions. Word has length 517 [2025-02-06 02:45:32,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:32,696 INFO L471 AbstractCegarLoop]: Abstraction has 11140 states and 17351 transitions. [2025-02-06 02:45:32,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 19.11111111111111) internal successors, (344), 18 states have internal predecessors, (344), 6 states have call successors, (231), 3 states have call predecessors, (231), 6 states have return successors, (231), 6 states have call predecessors, (231), 6 states have call successors, (231) [2025-02-06 02:45:32,696 INFO L276 IsEmpty]: Start isEmpty. Operand 11140 states and 17351 transitions. [2025-02-06 02:45:32,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2025-02-06 02:45:32,699 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:32,699 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:45:32,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 02:45:32,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-02-06 02:45:32,901 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:32,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:32,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1734720560, now seen corresponding path program 1 times [2025-02-06 02:45:32,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:32,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741780167] [2025-02-06 02:45:32,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:32,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:32,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 517 statements into 1 equivalence classes. [2025-02-06 02:45:33,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 517 of 517 statements. [2025-02-06 02:45:33,113 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:33,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:33,734 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-02-06 02:45:33,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:33,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741780167] [2025-02-06 02:45:33,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741780167] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:45:33,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:45:33,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 02:45:33,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291615658] [2025-02-06 02:45:33,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:45:33,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 02:45:33,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:33,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 02:45:33,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:45:33,736 INFO L87 Difference]: Start difference. First operand 11140 states and 17351 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2025-02-06 02:45:34,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:34,530 INFO L93 Difference]: Finished difference Result 21910 states and 34143 transitions. [2025-02-06 02:45:34,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:45:34,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 517 [2025-02-06 02:45:34,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:34,564 INFO L225 Difference]: With dead ends: 21910 [2025-02-06 02:45:34,564 INFO L226 Difference]: Without dead ends: 11142 [2025-02-06 02:45:34,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-02-06 02:45:34,582 INFO L435 NwaCegarLoop]: 527 mSDtfsCounter, 756 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:34,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 2491 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 02:45:34,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11142 states. [2025-02-06 02:45:35,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11142 to 11140. [2025-02-06 02:45:35,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11140 states, 9338 states have (on average 1.5081387877489827) internal successors, (14083), 9344 states have internal predecessors, (14083), 1625 states have call successors, (1625), 176 states have call predecessors, (1625), 176 states have return successors, (1625), 1619 states have call predecessors, (1625), 1625 states have call successors, (1625) [2025-02-06 02:45:35,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11140 states to 11140 states and 17333 transitions. [2025-02-06 02:45:35,142 INFO L78 Accepts]: Start accepts. Automaton has 11140 states and 17333 transitions. Word has length 517 [2025-02-06 02:45:35,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:35,143 INFO L471 AbstractCegarLoop]: Abstraction has 11140 states and 17333 transitions. [2025-02-06 02:45:35,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2025-02-06 02:45:35,143 INFO L276 IsEmpty]: Start isEmpty. Operand 11140 states and 17333 transitions. [2025-02-06 02:45:35,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2025-02-06 02:45:35,146 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:35,146 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:45:35,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 02:45:35,146 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:35,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:35,146 INFO L85 PathProgramCache]: Analyzing trace with hash -551373263, now seen corresponding path program 1 times [2025-02-06 02:45:35,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:35,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281157888] [2025-02-06 02:45:35,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:35,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:35,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 517 statements into 1 equivalence classes. [2025-02-06 02:45:35,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 517 of 517 statements. [2025-02-06 02:45:35,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:35,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:36,032 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-02-06 02:45:36,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:36,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281157888] [2025-02-06 02:45:36,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281157888] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:45:36,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:45:36,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:45:36,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764702221] [2025-02-06 02:45:36,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:45:36,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:45:36,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:36,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:45:36,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:45:36,033 INFO L87 Difference]: Start difference. First operand 11140 states and 17333 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:45:36,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:36,945 INFO L93 Difference]: Finished difference Result 18896 states and 29479 transitions. [2025-02-06 02:45:36,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:45:36,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 517 [2025-02-06 02:45:36,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:36,979 INFO L225 Difference]: With dead ends: 18896 [2025-02-06 02:45:36,979 INFO L226 Difference]: Without dead ends: 11158 [2025-02-06 02:45:36,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2025-02-06 02:45:36,996 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 833 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:36,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 1132 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 02:45:37,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11158 states. [2025-02-06 02:45:37,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11158 to 11156. [2025-02-06 02:45:37,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11156 states, 9354 states have (on average 1.5034209963651914) internal successors, (14063), 9360 states have internal predecessors, (14063), 1625 states have call successors, (1625), 176 states have call predecessors, (1625), 176 states have return successors, (1625), 1619 states have call predecessors, (1625), 1625 states have call successors, (1625) [2025-02-06 02:45:37,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11156 states to 11156 states and 17313 transitions. [2025-02-06 02:45:37,965 INFO L78 Accepts]: Start accepts. Automaton has 11156 states and 17313 transitions. Word has length 517 [2025-02-06 02:45:37,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:37,966 INFO L471 AbstractCegarLoop]: Abstraction has 11156 states and 17313 transitions. [2025-02-06 02:45:37,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-02-06 02:45:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 11156 states and 17313 transitions. [2025-02-06 02:45:37,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2025-02-06 02:45:37,971 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:37,971 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:45:37,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 02:45:37,971 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:37,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:37,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1397538641, now seen corresponding path program 1 times [2025-02-06 02:45:37,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:37,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801596942] [2025-02-06 02:45:37,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:37,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:38,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 517 statements into 1 equivalence classes. [2025-02-06 02:45:38,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 517 of 517 statements. [2025-02-06 02:45:38,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:38,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:39,078 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 81 proven. 147 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-02-06 02:45:39,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:39,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801596942] [2025-02-06 02:45:39,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801596942] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:45:39,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731034912] [2025-02-06 02:45:39,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:39,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:39,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:45:39,080 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:45:39,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 02:45:39,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 517 statements into 1 equivalence classes. [2025-02-06 02:45:39,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 517 of 517 statements. [2025-02-06 02:45:39,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:39,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:39,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 02:45:39,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:45:39,521 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 3276 proven. 36 refuted. 0 times theorem prover too weak. 8392 trivial. 0 not checked. [2025-02-06 02:45:39,522 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:45:39,742 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 192 proven. 36 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-02-06 02:45:39,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731034912] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:45:39,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:45:39,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2025-02-06 02:45:39,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716137235] [2025-02-06 02:45:39,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:45:39,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 02:45:39,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:39,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 02:45:39,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2025-02-06 02:45:39,744 INFO L87 Difference]: Start difference. First operand 11156 states and 17313 transitions. Second operand has 12 states, 12 states have (on average 20.0) internal successors, (240), 12 states have internal predecessors, (240), 4 states have call successors, (166), 2 states have call predecessors, (166), 4 states have return successors, (167), 4 states have call predecessors, (167), 4 states have call successors, (167) [2025-02-06 02:45:40,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:45:40,911 INFO L93 Difference]: Finished difference Result 19433 states and 29641 transitions. [2025-02-06 02:45:40,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 02:45:40,912 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.0) internal successors, (240), 12 states have internal predecessors, (240), 4 states have call successors, (166), 2 states have call predecessors, (166), 4 states have return successors, (167), 4 states have call predecessors, (167), 4 states have call successors, (167) Word has length 517 [2025-02-06 02:45:40,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:45:40,941 INFO L225 Difference]: With dead ends: 19433 [2025-02-06 02:45:40,941 INFO L226 Difference]: Without dead ends: 8489 [2025-02-06 02:45:40,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1053 GetRequests, 1030 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2025-02-06 02:45:40,962 INFO L435 NwaCegarLoop]: 315 mSDtfsCounter, 1016 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 02:45:40,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 793 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 02:45:40,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8489 states. [2025-02-06 02:45:41,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8489 to 8237. [2025-02-06 02:45:41,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8237 states, 6404 states have (on average 1.4047470331043097) internal successors, (8996), 6410 states have internal predecessors, (8996), 1625 states have call successors, (1625), 207 states have call predecessors, (1625), 207 states have return successors, (1625), 1619 states have call predecessors, (1625), 1625 states have call successors, (1625) [2025-02-06 02:45:41,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8237 states to 8237 states and 12246 transitions. [2025-02-06 02:45:41,603 INFO L78 Accepts]: Start accepts. Automaton has 8237 states and 12246 transitions. Word has length 517 [2025-02-06 02:45:41,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:45:41,603 INFO L471 AbstractCegarLoop]: Abstraction has 8237 states and 12246 transitions. [2025-02-06 02:45:41,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.0) internal successors, (240), 12 states have internal predecessors, (240), 4 states have call successors, (166), 2 states have call predecessors, (166), 4 states have return successors, (167), 4 states have call predecessors, (167), 4 states have call successors, (167) [2025-02-06 02:45:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 8237 states and 12246 transitions. [2025-02-06 02:45:41,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2025-02-06 02:45:41,605 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:45:41,606 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:45:41,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 02:45:41,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-06 02:45:41,806 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:45:41,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:45:41,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1358773632, now seen corresponding path program 1 times [2025-02-06 02:45:41,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:45:41,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456786799] [2025-02-06 02:45:41,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:41,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:45:41,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 520 statements into 1 equivalence classes. [2025-02-06 02:45:42,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 520 of 520 statements. [2025-02-06 02:45:42,414 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:42,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:46,064 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 126 proven. 750 refuted. 0 times theorem prover too weak. 10828 trivial. 0 not checked. [2025-02-06 02:45:46,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:45:46,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456786799] [2025-02-06 02:45:46,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456786799] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:45:46,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358798275] [2025-02-06 02:45:46,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:45:46,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:45:46,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:45:46,067 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:45:46,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 02:45:46,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 520 statements into 1 equivalence classes. [2025-02-06 02:45:46,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 520 of 520 statements. [2025-02-06 02:45:46,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:45:46,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:45:46,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 02:45:46,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:45:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 5056 proven. 540 refuted. 0 times theorem prover too weak. 6108 trivial. 0 not checked. [2025-02-06 02:45:48,359 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:45:48,995 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 96 proven. 357 refuted. 0 times theorem prover too weak. 11251 trivial. 0 not checked. [2025-02-06 02:45:48,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358798275] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:45:48,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:45:48,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12, 9] total 35 [2025-02-06 02:45:48,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910750027] [2025-02-06 02:45:48,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:45:48,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-02-06 02:45:48,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:45:48,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-02-06 02:45:48,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1017, Unknown=0, NotChecked=0, Total=1190 [2025-02-06 02:45:48,998 INFO L87 Difference]: Start difference. First operand 8237 states and 12246 transitions. Second operand has 35 states, 35 states have (on average 10.685714285714285) internal successors, (374), 34 states have internal predecessors, (374), 12 states have call successors, (219), 4 states have call predecessors, (219), 8 states have return successors, (220), 12 states have call predecessors, (220), 12 states have call successors, (220) [2025-02-06 02:46:02,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:46:02,566 INFO L93 Difference]: Finished difference Result 60444 states and 90864 transitions. [2025-02-06 02:46:02,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2025-02-06 02:46:02,567 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 10.685714285714285) internal successors, (374), 34 states have internal predecessors, (374), 12 states have call successors, (219), 4 states have call predecessors, (219), 8 states have return successors, (220), 12 states have call predecessors, (220), 12 states have call successors, (220) Word has length 520 [2025-02-06 02:46:02,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:46:02,664 INFO L225 Difference]: With dead ends: 60444 [2025-02-06 02:46:02,664 INFO L226 Difference]: Without dead ends: 52522 [2025-02-06 02:46:02,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1179 GetRequests, 1049 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5703 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=3621, Invalid=13671, Unknown=0, NotChecked=0, Total=17292 [2025-02-06 02:46:02,694 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 8468 mSDsluCounter, 4882 mSDsCounter, 0 mSdLazyCounter, 6129 mSolverCounterSat, 1062 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8480 SdHoareTripleChecker+Valid, 5246 SdHoareTripleChecker+Invalid, 7191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1062 IncrementalHoareTripleChecker+Valid, 6129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:46:02,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8480 Valid, 5246 Invalid, 7191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1062 Valid, 6129 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2025-02-06 02:46:02,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52522 states. [2025-02-06 02:46:04,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52522 to 31110. [2025-02-06 02:46:04,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31110 states, 26653 states have (on average 1.4475668780249877) internal successors, (38582), 26749 states have internal predecessors, (38582), 3785 states have call successors, (3785), 671 states have call predecessors, (3785), 671 states have return successors, (3785), 3689 states have call predecessors, (3785), 3785 states have call successors, (3785) [2025-02-06 02:46:05,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31110 states to 31110 states and 46152 transitions. [2025-02-06 02:46:05,023 INFO L78 Accepts]: Start accepts. Automaton has 31110 states and 46152 transitions. Word has length 520 [2025-02-06 02:46:05,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:46:05,023 INFO L471 AbstractCegarLoop]: Abstraction has 31110 states and 46152 transitions. [2025-02-06 02:46:05,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 10.685714285714285) internal successors, (374), 34 states have internal predecessors, (374), 12 states have call successors, (219), 4 states have call predecessors, (219), 8 states have return successors, (220), 12 states have call predecessors, (220), 12 states have call successors, (220) [2025-02-06 02:46:05,024 INFO L276 IsEmpty]: Start isEmpty. Operand 31110 states and 46152 transitions. [2025-02-06 02:46:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2025-02-06 02:46:05,028 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:46:05,028 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:46:05,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 02:46:05,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-02-06 02:46:05,229 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:46:05,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:46:05,229 INFO L85 PathProgramCache]: Analyzing trace with hash 898137375, now seen corresponding path program 1 times [2025-02-06 02:46:05,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:46:05,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390366277] [2025-02-06 02:46:05,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:46:05,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:46:05,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 520 statements into 1 equivalence classes. [2025-02-06 02:46:06,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 520 of 520 statements. [2025-02-06 02:46:06,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:46:06,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat