./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-46.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_amount250_file-46.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 b28318b64c584c946b04c5086a6c24adb23afe0fc28f8c52df4df9b28156611e --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:17:53,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:17:53,869 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 02:17:53,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:17:53,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:17:53,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:17:53,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:17:53,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:17:53,895 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:17:53,895 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:17:53,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:17:53,895 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:17:53,895 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:17:53,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:17:53,895 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:17:53,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:17:53,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:17:53,897 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:17:53,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 02:17:53,897 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:17:53,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:17:53,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:17:53,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:17:53,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:17:53,898 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:17:53,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:17:53,898 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:17:53,898 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:17:53,898 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:17:53,898 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:17:53,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:17:53,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:17:53,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:17:53,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:17:53,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:17:53,899 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:17:53,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:17:53,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 02:17:53,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 02:17:53,900 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:17:53,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:17:53,900 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:17:53,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:17:53,900 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 -> b28318b64c584c946b04c5086a6c24adb23afe0fc28f8c52df4df9b28156611e [2025-02-06 02:17:54,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:17:54,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:17:54,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:17:54,159 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:17:54,159 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:17:54,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-46.i [2025-02-06 02:17:55,325 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6338f1a65/3dd5006b3ac645fd8056d94e5efae75e/FLAG083c56e5b [2025-02-06 02:17:55,570 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:17:55,570 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-46.i [2025-02-06 02:17:55,580 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6338f1a65/3dd5006b3ac645fd8056d94e5efae75e/FLAG083c56e5b [2025-02-06 02:17:55,896 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6338f1a65/3dd5006b3ac645fd8056d94e5efae75e [2025-02-06 02:17:55,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:17:55,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:17:55,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:17:55,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:17:55,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:17:55,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:17:55" (1/1) ... [2025-02-06 02:17:55,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d389e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:55, skipping insertion in model container [2025-02-06 02:17:55,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:17:55" (1/1) ... [2025-02-06 02:17:55,931 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:17:56,044 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_amount250_file-46.i[916,929] [2025-02-06 02:17:56,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:17:56,216 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:17:56,225 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_amount250_file-46.i[916,929] [2025-02-06 02:17:56,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:17:56,303 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:17:56,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56 WrapperNode [2025-02-06 02:17:56,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:17:56,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:17:56,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:17:56,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:17:56,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (1/1) ... [2025-02-06 02:17:56,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (1/1) ... [2025-02-06 02:17:56,368 INFO L138 Inliner]: procedures = 26, calls = 69, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 426 [2025-02-06 02:17:56,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:17:56,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:17:56,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:17:56,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:17:56,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (1/1) ... [2025-02-06 02:17:56,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (1/1) ... [2025-02-06 02:17:56,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (1/1) ... [2025-02-06 02:17:56,424 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 02:17:56,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (1/1) ... [2025-02-06 02:17:56,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (1/1) ... [2025-02-06 02:17:56,442 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (1/1) ... [2025-02-06 02:17:56,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (1/1) ... [2025-02-06 02:17:56,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (1/1) ... [2025-02-06 02:17:56,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (1/1) ... [2025-02-06 02:17:56,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:17:56,473 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:17:56,473 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:17:56,473 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:17:56,474 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (1/1) ... [2025-02-06 02:17:56,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:17:56,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:17:56,501 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 02:17:56,504 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 02:17:56,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:17:56,523 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:17:56,523 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:17:56,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 02:17:56,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:17:56,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:17:56,626 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:17:56,628 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:17:57,176 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L368: havoc property_#t~bitwise39#1;havoc property_#t~short40#1;havoc property_#t~short41#1;havoc property_#t~bitwise42#1;havoc property_#t~short43#1; [2025-02-06 02:17:57,237 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2025-02-06 02:17:57,237 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:17:57,258 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:17:57,258 INFO L337 CfgBuilder]: Removed 2 assume(true) statements. [2025-02-06 02:17:57,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:17:57 BoogieIcfgContainer [2025-02-06 02:17:57,259 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:17:57,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:17:57,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:17:57,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:17:57,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:17:55" (1/3) ... [2025-02-06 02:17:57,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736c530d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:17:57, skipping insertion in model container [2025-02-06 02:17:57,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:17:56" (2/3) ... [2025-02-06 02:17:57,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736c530d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:17:57, skipping insertion in model container [2025-02-06 02:17:57,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:17:57" (3/3) ... [2025-02-06 02:17:57,269 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-46.i [2025-02-06 02:17:57,280 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:17:57,282 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount250_file-46.i that has 2 procedures, 174 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:17:57,335 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:17:57,346 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;@7aaba2ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:17:57,347 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:17:57,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 174 states, 115 states have (on average 1.4173913043478261) internal successors, (163), 116 states have internal predecessors, (163), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2025-02-06 02:17:57,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2025-02-06 02:17:57,392 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:17:57,393 INFO L218 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:17:57,395 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:17:57,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:17:57,400 INFO L85 PathProgramCache]: Analyzing trace with hash 2003634177, now seen corresponding path program 1 times [2025-02-06 02:17:57,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:17:57,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706287585] [2025-02-06 02:17:57,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:17:57,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:17:57,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 365 statements into 1 equivalence classes. [2025-02-06 02:17:57,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 365 of 365 statements. [2025-02-06 02:17:57,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:17:57,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:17:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2025-02-06 02:17:58,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:17:58,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706287585] [2025-02-06 02:17:58,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706287585] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:17:58,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:17:58,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:17:58,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573292688] [2025-02-06 02:17:58,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:17:58,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:17:58,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:17:58,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:17:58,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:17:58,075 INFO L87 Difference]: Start difference. First operand has 174 states, 115 states have (on average 1.4173913043478261) internal successors, (163), 116 states have internal predecessors, (163), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2025-02-06 02:17:58,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:17:58,144 INFO L93 Difference]: Finished difference Result 343 states and 603 transitions. [2025-02-06 02:17:58,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:17:58,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 365 [2025-02-06 02:17:58,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:17:58,153 INFO L225 Difference]: With dead ends: 343 [2025-02-06 02:17:58,155 INFO L226 Difference]: Without dead ends: 172 [2025-02-06 02:17:58,159 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 02:17:58,161 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 0 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:17:58,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 523 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:17:58,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-02-06 02:17:58,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2025-02-06 02:17:58,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 114 states have (on average 1.394736842105263) internal successors, (159), 114 states have internal predecessors, (159), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2025-02-06 02:17:58,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 271 transitions. [2025-02-06 02:17:58,216 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 271 transitions. Word has length 365 [2025-02-06 02:17:58,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:17:58,218 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 271 transitions. [2025-02-06 02:17:58,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2025-02-06 02:17:58,219 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 271 transitions. [2025-02-06 02:17:58,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2025-02-06 02:17:58,226 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:17:58,226 INFO L218 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:17:58,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 02:17:58,227 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:17:58,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:17:58,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1748897632, now seen corresponding path program 1 times [2025-02-06 02:17:58,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:17:58,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757535885] [2025-02-06 02:17:58,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:17:58,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:17:58,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 365 statements into 1 equivalence classes. [2025-02-06 02:17:58,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 365 of 365 statements. [2025-02-06 02:17:58,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:17:58,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:17:59,869 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2025-02-06 02:17:59,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:17:59,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757535885] [2025-02-06 02:17:59,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757535885] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:17:59,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:17:59,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 02:17:59,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280421930] [2025-02-06 02:17:59,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:17:59,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:17:59,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:17:59,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:17:59,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:17:59,874 INFO L87 Difference]: Start difference. First operand 172 states and 271 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2025-02-06 02:18:00,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:18:00,075 INFO L93 Difference]: Finished difference Result 479 states and 754 transitions. [2025-02-06 02:18:00,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:18:00,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 365 [2025-02-06 02:18:00,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:18:00,080 INFO L225 Difference]: With dead ends: 479 [2025-02-06 02:18:00,082 INFO L226 Difference]: Without dead ends: 310 [2025-02-06 02:18:00,083 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 02:18:00,084 INFO L435 NwaCegarLoop]: 308 mSDtfsCounter, 217 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:18:00,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 930 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 02:18:00,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2025-02-06 02:18:00,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 192. [2025-02-06 02:18:00,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 134 states have (on average 1.4253731343283582) internal successors, (191), 134 states have internal predecessors, (191), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2025-02-06 02:18:00,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 303 transitions. [2025-02-06 02:18:00,109 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 303 transitions. Word has length 365 [2025-02-06 02:18:00,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:18:00,111 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 303 transitions. [2025-02-06 02:18:00,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2025-02-06 02:18:00,111 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 303 transitions. [2025-02-06 02:18:00,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2025-02-06 02:18:00,116 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:18:00,117 INFO L218 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:18:00,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 02:18:00,117 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:18:00,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:18:00,120 INFO L85 PathProgramCache]: Analyzing trace with hash 724203711, now seen corresponding path program 1 times [2025-02-06 02:18:00,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:18:00,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575716387] [2025-02-06 02:18:00,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:00,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:18:00,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 365 statements into 1 equivalence classes. [2025-02-06 02:18:01,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 365 of 365 statements. [2025-02-06 02:18:01,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:01,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:02,143 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 51 proven. 114 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2025-02-06 02:18:02,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:18:02,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575716387] [2025-02-06 02:18:02,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575716387] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:18:02,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528793672] [2025-02-06 02:18:02,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:02,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:18:02,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:18:02,147 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 02:18:02,148 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 02:18:02,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 365 statements into 1 equivalence classes. [2025-02-06 02:18:02,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 365 of 365 statements. [2025-02-06 02:18:02,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:02,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:02,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 02:18:02,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:18:03,472 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 3079 proven. 186 refuted. 0 times theorem prover too weak. 2895 trivial. 0 not checked. [2025-02-06 02:18:03,472 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:18:04,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 138 proven. 189 refuted. 0 times theorem prover too weak. 5833 trivial. 0 not checked. [2025-02-06 02:18:04,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528793672] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:18:04,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:18:04,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 11] total 25 [2025-02-06 02:18:04,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488584390] [2025-02-06 02:18:04,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:18:04,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-02-06 02:18:04,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:18:04,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-02-06 02:18:04,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2025-02-06 02:18:04,348 INFO L87 Difference]: Start difference. First operand 192 states and 303 transitions. Second operand has 25 states, 25 states have (on average 8.92) internal successors, (223), 25 states have internal predecessors, (223), 8 states have call successors, (168), 4 states have call predecessors, (168), 8 states have return successors, (168), 8 states have call predecessors, (168), 8 states have call successors, (168) [2025-02-06 02:18:10,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:18:10,100 INFO L93 Difference]: Finished difference Result 1545 states and 2323 transitions. [2025-02-06 02:18:10,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2025-02-06 02:18:10,102 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.92) internal successors, (223), 25 states have internal predecessors, (223), 8 states have call successors, (168), 4 states have call predecessors, (168), 8 states have return successors, (168), 8 states have call predecessors, (168), 8 states have call successors, (168) Word has length 365 [2025-02-06 02:18:10,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:18:10,111 INFO L225 Difference]: With dead ends: 1545 [2025-02-06 02:18:10,113 INFO L226 Difference]: Without dead ends: 1356 [2025-02-06 02:18:10,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 726 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6216 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2727, Invalid=13023, Unknown=0, NotChecked=0, Total=15750 [2025-02-06 02:18:10,122 INFO L435 NwaCegarLoop]: 406 mSDtfsCounter, 3244 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 3568 mSolverCounterSat, 1717 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3262 SdHoareTripleChecker+Valid, 3340 SdHoareTripleChecker+Invalid, 5285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1717 IncrementalHoareTripleChecker+Valid, 3568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:18:10,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3262 Valid, 3340 Invalid, 5285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1717 Valid, 3568 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-02-06 02:18:10,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2025-02-06 02:18:10,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 857. [2025-02-06 02:18:10,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 606 states have (on average 1.3613861386138615) internal successors, (825), 610 states have internal predecessors, (825), 230 states have call successors, (230), 20 states have call predecessors, (230), 20 states have return successors, (230), 226 states have call predecessors, (230), 230 states have call successors, (230) [2025-02-06 02:18:10,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1285 transitions. [2025-02-06 02:18:10,226 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1285 transitions. Word has length 365 [2025-02-06 02:18:10,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:18:10,226 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1285 transitions. [2025-02-06 02:18:10,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.92) internal successors, (223), 25 states have internal predecessors, (223), 8 states have call successors, (168), 4 states have call predecessors, (168), 8 states have return successors, (168), 8 states have call predecessors, (168), 8 states have call successors, (168) [2025-02-06 02:18:10,227 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1285 transitions. [2025-02-06 02:18:10,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2025-02-06 02:18:10,230 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:18:10,230 INFO L218 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:18:10,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 02:18:10,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:18:10,435 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:18:10,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:18:10,436 INFO L85 PathProgramCache]: Analyzing trace with hash -558140384, now seen corresponding path program 1 times [2025-02-06 02:18:10,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:18:10,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516733569] [2025-02-06 02:18:10,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:10,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:18:10,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 365 statements into 1 equivalence classes. [2025-02-06 02:18:10,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 365 of 365 statements. [2025-02-06 02:18:10,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:10,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:11,140 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2025-02-06 02:18:11,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:18:11,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516733569] [2025-02-06 02:18:11,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516733569] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:18:11,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:18:11,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 02:18:11,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474837593] [2025-02-06 02:18:11,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:18:11,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:18:11,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:18:11,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:18:11,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:18:11,144 INFO L87 Difference]: Start difference. First operand 857 states and 1285 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2025-02-06 02:18:11,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:18:11,591 INFO L93 Difference]: Finished difference Result 2620 states and 3891 transitions. [2025-02-06 02:18:11,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:18:11,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 365 [2025-02-06 02:18:11,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:18:11,609 INFO L225 Difference]: With dead ends: 2620 [2025-02-06 02:18:11,609 INFO L226 Difference]: Without dead ends: 1948 [2025-02-06 02:18:11,613 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 02:18:11,614 INFO L435 NwaCegarLoop]: 420 mSDtfsCounter, 405 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:18:11,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1035 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:18:11,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2025-02-06 02:18:11,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1419. [2025-02-06 02:18:11,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 1028 states have (on average 1.3618677042801557) internal successors, (1400), 1037 states have internal predecessors, (1400), 354 states have call successors, (354), 36 states have call predecessors, (354), 36 states have return successors, (354), 345 states have call predecessors, (354), 354 states have call successors, (354) [2025-02-06 02:18:11,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 2108 transitions. [2025-02-06 02:18:11,754 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 2108 transitions. Word has length 365 [2025-02-06 02:18:11,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:18:11,755 INFO L471 AbstractCegarLoop]: Abstraction has 1419 states and 2108 transitions. [2025-02-06 02:18:11,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2025-02-06 02:18:11,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 2108 transitions. [2025-02-06 02:18:11,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2025-02-06 02:18:11,758 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:18:11,758 INFO L218 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:18:11,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 02:18:11,758 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:18:11,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:18:11,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1582834305, now seen corresponding path program 1 times [2025-02-06 02:18:11,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:18:11,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924486523] [2025-02-06 02:18:11,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:11,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:18:11,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 365 statements into 1 equivalence classes. [2025-02-06 02:18:12,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 365 of 365 statements. [2025-02-06 02:18:12,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:12,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:13,198 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 30 proven. 135 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2025-02-06 02:18:13,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:18:13,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924486523] [2025-02-06 02:18:13,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924486523] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:18:13,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146457114] [2025-02-06 02:18:13,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:13,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:18:13,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:18:13,201 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 02:18:13,203 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 02:18:13,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 365 statements into 1 equivalence classes. [2025-02-06 02:18:13,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 365 of 365 statements. [2025-02-06 02:18:13,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:13,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:13,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 02:18:13,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:18:13,842 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 3404 proven. 210 refuted. 0 times theorem prover too weak. 2546 trivial. 0 not checked. [2025-02-06 02:18:13,842 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:18:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 114 proven. 213 refuted. 0 times theorem prover too weak. 5833 trivial. 0 not checked. [2025-02-06 02:18:14,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146457114] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:18:14,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:18:14,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2025-02-06 02:18:14,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146967295] [2025-02-06 02:18:14,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:18:14,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 02:18:14,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:18:14,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 02:18:14,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2025-02-06 02:18:14,495 INFO L87 Difference]: Start difference. First operand 1419 states and 2108 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 8 states have call successors, (151), 3 states have call predecessors, (151), 7 states have return successors, (152), 8 states have call predecessors, (152), 8 states have call successors, (152) [2025-02-06 02:18:15,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:18:15,740 INFO L93 Difference]: Finished difference Result 2635 states and 3837 transitions. [2025-02-06 02:18:15,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-02-06 02:18:15,741 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 8 states have call successors, (151), 3 states have call predecessors, (151), 7 states have return successors, (152), 8 states have call predecessors, (152), 8 states have call successors, (152) Word has length 365 [2025-02-06 02:18:15,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:18:15,749 INFO L225 Difference]: With dead ends: 2635 [2025-02-06 02:18:15,751 INFO L226 Difference]: Without dead ends: 1350 [2025-02-06 02:18:15,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 773 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=650, Invalid=1800, Unknown=0, NotChecked=0, Total=2450 [2025-02-06 02:18:15,757 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 1243 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-06 02:18:15,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 1344 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-06 02:18:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2025-02-06 02:18:15,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1155. [2025-02-06 02:18:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 808 states have (on average 1.316831683168317) internal successors, (1064), 814 states have internal predecessors, (1064), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 296 states have call predecessors, (302), 302 states have call successors, (302) [2025-02-06 02:18:15,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1668 transitions. [2025-02-06 02:18:15,849 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1668 transitions. Word has length 365 [2025-02-06 02:18:15,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:18:15,850 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1668 transitions. [2025-02-06 02:18:15,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 8 states have call successors, (151), 3 states have call predecessors, (151), 7 states have return successors, (152), 8 states have call predecessors, (152), 8 states have call successors, (152) [2025-02-06 02:18:15,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1668 transitions. [2025-02-06 02:18:15,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2025-02-06 02:18:15,853 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:18:15,853 INFO L218 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:18:15,861 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 02:18:16,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:18:16,055 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:18:16,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:18:16,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1740462179, now seen corresponding path program 1 times [2025-02-06 02:18:16,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:18:16,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507356951] [2025-02-06 02:18:16,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:16,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:18:16,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 366 statements into 1 equivalence classes. [2025-02-06 02:18:17,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 366 of 366 statements. [2025-02-06 02:18:17,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:17,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:17,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 57 proven. 108 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2025-02-06 02:18:17,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:18:17,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507356951] [2025-02-06 02:18:17,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507356951] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:18:17,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811709137] [2025-02-06 02:18:17,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:17,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:18:17,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:18:17,579 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 02:18:17,581 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 02:18:17,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 366 statements into 1 equivalence classes. [2025-02-06 02:18:17,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 366 of 366 statements. [2025-02-06 02:18:17,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:17,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:17,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:18:17,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:18:18,000 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 3025 proven. 66 refuted. 0 times theorem prover too weak. 3069 trivial. 0 not checked. [2025-02-06 02:18:18,000 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:18:18,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 99 proven. 66 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2025-02-06 02:18:18,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811709137] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:18:18,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:18:18,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-02-06 02:18:18,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702565114] [2025-02-06 02:18:18,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:18:18,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 02:18:18,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:18:18,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 02:18:18,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 02:18:18,261 INFO L87 Difference]: Start difference. First operand 1155 states and 1668 transitions. Second operand has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 3 states have call successors, (114), 2 states have call predecessors, (114), 4 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2025-02-06 02:18:18,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:18:18,649 INFO L93 Difference]: Finished difference Result 1726 states and 2463 transitions. [2025-02-06 02:18:18,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 02:18:18,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 3 states have call successors, (114), 2 states have call predecessors, (114), 4 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) Word has length 366 [2025-02-06 02:18:18,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:18:18,655 INFO L225 Difference]: With dead ends: 1726 [2025-02-06 02:18:18,655 INFO L226 Difference]: Without dead ends: 719 [2025-02-06 02:18:18,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 730 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2025-02-06 02:18:18,659 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 345 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:18:18,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 444 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:18:18,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2025-02-06 02:18:18,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 705. [2025-02-06 02:18:18,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 498 states have (on average 1.283132530120482) internal successors, (639), 500 states have internal predecessors, (639), 169 states have call successors, (169), 37 states have call predecessors, (169), 37 states have return successors, (169), 167 states have call predecessors, (169), 169 states have call successors, (169) [2025-02-06 02:18:18,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 977 transitions. [2025-02-06 02:18:18,714 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 977 transitions. Word has length 366 [2025-02-06 02:18:18,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:18:18,715 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 977 transitions. [2025-02-06 02:18:18,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 3 states have call successors, (114), 2 states have call predecessors, (114), 4 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2025-02-06 02:18:18,715 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 977 transitions. [2025-02-06 02:18:18,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2025-02-06 02:18:18,718 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:18:18,719 INFO L218 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:18:18,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 02:18:18,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:18:18,920 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:18:18,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:18:18,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1077122173, now seen corresponding path program 1 times [2025-02-06 02:18:18,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:18:18,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254819127] [2025-02-06 02:18:18,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:18,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:18:18,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 366 statements into 1 equivalence classes. [2025-02-06 02:18:19,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 366 of 366 statements. [2025-02-06 02:18:19,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:19,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 261 proven. 363 refuted. 0 times theorem prover too weak. 5536 trivial. 0 not checked. [2025-02-06 02:18:24,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:18:24,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254819127] [2025-02-06 02:18:24,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254819127] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:18:24,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122247043] [2025-02-06 02:18:24,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:24,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:18:24,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:18:24,968 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 02:18:24,969 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 02:18:25,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 366 statements into 1 equivalence classes. [2025-02-06 02:18:25,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 366 of 366 statements. [2025-02-06 02:18:25,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:25,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:25,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-02-06 02:18:25,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:18:26,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 4481 proven. 300 refuted. 0 times theorem prover too weak. 1379 trivial. 0 not checked. [2025-02-06 02:18:26,934 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:18:30,023 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 150 proven. 177 refuted. 0 times theorem prover too weak. 5833 trivial. 0 not checked. [2025-02-06 02:18:30,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122247043] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:18:30,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:18:30,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14, 11] total 37 [2025-02-06 02:18:30,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212691094] [2025-02-06 02:18:30,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:18:30,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2025-02-06 02:18:30,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:18:30,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2025-02-06 02:18:30,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1104, Unknown=0, NotChecked=0, Total=1332 [2025-02-06 02:18:30,032 INFO L87 Difference]: Start difference. First operand 705 states and 977 transitions. Second operand has 37 states, 36 states have (on average 6.972222222222222) internal successors, (251), 36 states have internal predecessors, (251), 15 states have call successors, (157), 5 states have call predecessors, (157), 9 states have return successors, (158), 14 states have call predecessors, (158), 15 states have call successors, (158) [2025-02-06 02:18:37,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:18:37,069 INFO L93 Difference]: Finished difference Result 2547 states and 3464 transitions. [2025-02-06 02:18:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2025-02-06 02:18:37,070 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 6.972222222222222) internal successors, (251), 36 states have internal predecessors, (251), 15 states have call successors, (157), 5 states have call predecessors, (157), 9 states have return successors, (158), 14 states have call predecessors, (158), 15 states have call successors, (158) Word has length 366 [2025-02-06 02:18:37,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:18:37,078 INFO L225 Difference]: With dead ends: 2547 [2025-02-06 02:18:37,078 INFO L226 Difference]: Without dead ends: 2020 [2025-02-06 02:18:37,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 857 GetRequests, 734 SyntacticMatches, 2 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4528 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2558, Invalid=12448, Unknown=0, NotChecked=0, Total=15006 [2025-02-06 02:18:37,082 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 5194 mSDsluCounter, 2953 mSDsCounter, 0 mSdLazyCounter, 4886 mSolverCounterSat, 1251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5206 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 6137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1251 IncrementalHoareTripleChecker+Valid, 4886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-02-06 02:18:37,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5206 Valid, 3254 Invalid, 6137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1251 Valid, 4886 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-02-06 02:18:37,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2025-02-06 02:18:37,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 1737. [2025-02-06 02:18:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1245 states have (on average 1.2666666666666666) internal successors, (1577), 1252 states have internal predecessors, (1577), 379 states have call successors, (379), 112 states have call predecessors, (379), 112 states have return successors, (379), 372 states have call predecessors, (379), 379 states have call successors, (379) [2025-02-06 02:18:37,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2335 transitions. [2025-02-06 02:18:37,264 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2335 transitions. Word has length 366 [2025-02-06 02:18:37,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:18:37,265 INFO L471 AbstractCegarLoop]: Abstraction has 1737 states and 2335 transitions. [2025-02-06 02:18:37,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 6.972222222222222) internal successors, (251), 36 states have internal predecessors, (251), 15 states have call successors, (157), 5 states have call predecessors, (157), 9 states have return successors, (158), 14 states have call predecessors, (158), 15 states have call successors, (158) [2025-02-06 02:18:37,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2335 transitions. [2025-02-06 02:18:37,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2025-02-06 02:18:37,267 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:18:37,267 INFO L218 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:18:37,276 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 02:18:37,468 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,SelfDestructingSolverStorable6 [2025-02-06 02:18:37,468 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:18:37,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:18:37,468 INFO L85 PathProgramCache]: Analyzing trace with hash -726322236, now seen corresponding path program 1 times [2025-02-06 02:18:37,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:18:37,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548563060] [2025-02-06 02:18:37,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:37,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:18:37,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 366 statements into 1 equivalence classes. [2025-02-06 02:18:38,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 366 of 366 statements. [2025-02-06 02:18:38,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:38,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:39,031 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 126 proven. 39 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2025-02-06 02:18:39,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:18:39,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548563060] [2025-02-06 02:18:39,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548563060] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:18:39,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163267174] [2025-02-06 02:18:39,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:39,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:18:39,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:18:39,034 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 02:18:39,035 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 02:18:39,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 366 statements into 1 equivalence classes. [2025-02-06 02:18:39,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 366 of 366 statements. [2025-02-06 02:18:39,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:39,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:39,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 02:18:39,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:18:39,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 2323 proven. 39 refuted. 0 times theorem prover too weak. 3798 trivial. 0 not checked. [2025-02-06 02:18:39,460 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:18:39,824 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 126 proven. 39 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2025-02-06 02:18:39,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163267174] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:18:39,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:18:39,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-02-06 02:18:39,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592266639] [2025-02-06 02:18:39,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:18:39,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 02:18:39,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:18:39,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 02:18:39,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2025-02-06 02:18:39,827 INFO L87 Difference]: Start difference. First operand 1737 states and 2335 transitions. Second operand has 18 states, 18 states have (on average 8.222222222222221) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2025-02-06 02:18:41,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:18:41,568 INFO L93 Difference]: Finished difference Result 5202 states and 6978 transitions. [2025-02-06 02:18:41,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 02:18:41,568 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.222222222222221) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 366 [2025-02-06 02:18:41,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:18:41,581 INFO L225 Difference]: With dead ends: 5202 [2025-02-06 02:18:41,582 INFO L226 Difference]: Without dead ends: 3504 [2025-02-06 02:18:41,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 755 GetRequests, 724 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=737, Unknown=0, NotChecked=0, Total=930 [2025-02-06 02:18:41,585 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 703 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:18:41,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 2666 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-06 02:18:41,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2025-02-06 02:18:41,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 3002. [2025-02-06 02:18:41,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3002 states, 2165 states have (on average 1.2572748267898384) internal successors, (2722), 2181 states have internal predecessors, (2722), 634 states have call successors, (634), 202 states have call predecessors, (634), 202 states have return successors, (634), 618 states have call predecessors, (634), 634 states have call successors, (634) [2025-02-06 02:18:41,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3002 states to 3002 states and 3990 transitions. [2025-02-06 02:18:41,947 INFO L78 Accepts]: Start accepts. Automaton has 3002 states and 3990 transitions. Word has length 366 [2025-02-06 02:18:41,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:18:41,948 INFO L471 AbstractCegarLoop]: Abstraction has 3002 states and 3990 transitions. [2025-02-06 02:18:41,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.222222222222221) internal successors, (148), 18 states have internal predecessors, (148), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2025-02-06 02:18:41,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states and 3990 transitions. [2025-02-06 02:18:41,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2025-02-06 02:18:41,950 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:18:41,950 INFO L218 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:18:41,958 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 02:18:42,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:18:42,151 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:18:42,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:18:42,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1244617221, now seen corresponding path program 1 times [2025-02-06 02:18:42,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:18:42,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765435923] [2025-02-06 02:18:42,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:42,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:18:42,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 366 statements into 1 equivalence classes. [2025-02-06 02:18:46,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 366 of 366 statements. [2025-02-06 02:18:46,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:46,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:46,977 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 108 proven. 57 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2025-02-06 02:18:46,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:18:46,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765435923] [2025-02-06 02:18:46,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765435923] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:18:46,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124026937] [2025-02-06 02:18:46,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:46,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:18:46,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:18:46,980 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 02:18:46,980 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 02:18:47,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 366 statements into 1 equivalence classes. [2025-02-06 02:18:47,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 366 of 366 statements. [2025-02-06 02:18:47,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:47,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:18:47,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 02:18:47,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:18:48,372 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 2863 proven. 57 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2025-02-06 02:18:48,372 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:18:48,801 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 108 proven. 57 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2025-02-06 02:18:48,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124026937] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:18:48,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:18:48,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 20 [2025-02-06 02:18:48,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899549055] [2025-02-06 02:18:48,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:18:48,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-06 02:18:48,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:18:48,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-06 02:18:48,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2025-02-06 02:18:48,804 INFO L87 Difference]: Start difference. First operand 3002 states and 3990 transitions. Second operand has 20 states, 20 states have (on average 9.2) internal successors, (184), 20 states have internal predecessors, (184), 6 states have call successors, (168), 3 states have call predecessors, (168), 6 states have return successors, (168), 6 states have call predecessors, (168), 6 states have call successors, (168) [2025-02-06 02:18:50,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:18:50,238 INFO L93 Difference]: Finished difference Result 6139 states and 8214 transitions. [2025-02-06 02:18:50,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 02:18:50,239 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 9.2) internal successors, (184), 20 states have internal predecessors, (184), 6 states have call successors, (168), 3 states have call predecessors, (168), 6 states have return successors, (168), 6 states have call predecessors, (168), 6 states have call successors, (168) Word has length 366 [2025-02-06 02:18:50,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:18:50,256 INFO L225 Difference]: With dead ends: 6139 [2025-02-06 02:18:50,257 INFO L226 Difference]: Without dead ends: 3339 [2025-02-06 02:18:50,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 752 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2025-02-06 02:18:50,263 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 757 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-06 02:18:50,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1383 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-06 02:18:50,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3339 states. [2025-02-06 02:18:50,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3339 to 2974. [2025-02-06 02:18:50,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2136 states have (on average 1.2542134831460674) internal successors, (2679), 2152 states have internal predecessors, (2679), 634 states have call successors, (634), 203 states have call predecessors, (634), 203 states have return successors, (634), 618 states have call predecessors, (634), 634 states have call successors, (634) [2025-02-06 02:18:50,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 3947 transitions. [2025-02-06 02:18:50,616 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 3947 transitions. Word has length 366 [2025-02-06 02:18:50,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:18:50,616 INFO L471 AbstractCegarLoop]: Abstraction has 2974 states and 3947 transitions. [2025-02-06 02:18:50,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.2) internal successors, (184), 20 states have internal predecessors, (184), 6 states have call successors, (168), 3 states have call predecessors, (168), 6 states have return successors, (168), 6 states have call predecessors, (168), 6 states have call successors, (168) [2025-02-06 02:18:50,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 3947 transitions. [2025-02-06 02:18:50,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2025-02-06 02:18:50,619 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:18:50,619 INFO L218 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:18:50,627 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 02:18:50,820 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,SelfDestructingSolverStorable8 [2025-02-06 02:18:50,820 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:18:50,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:18:50,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1808884340, now seen corresponding path program 1 times [2025-02-06 02:18:50,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:18:50,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184055233] [2025-02-06 02:18:50,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:18:50,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:18:50,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 367 statements into 1 equivalence classes. [2025-02-06 02:18:52,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 367 of 367 statements. [2025-02-06 02:18:52,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:18:52,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:19:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 414 proven. 486 refuted. 0 times theorem prover too weak. 5260 trivial. 0 not checked. [2025-02-06 02:19:04,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:19:04,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184055233] [2025-02-06 02:19:04,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184055233] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:19:04,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403804999] [2025-02-06 02:19:04,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:19:04,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:19:04,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:19:04,827 INFO L229 MonitoredProcess]: Starting monitored process 8 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 02:19:04,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 02:19:04,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 367 statements into 1 equivalence classes. [2025-02-06 02:19:11,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 367 of 367 statements. [2025-02-06 02:19:11,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:19:11,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:19:11,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 119 conjuncts are in the unsatisfiable core [2025-02-06 02:19:11,212 INFO L279 TraceCheckSpWp]: Computing forward predicates...