./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 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_fillercode_fillercodesize_ps-cn-250_file-14.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 d03dd1fa0ccd6c2f276f8e830c5c45c3023586b3294c63b9f2b76eedbdce4e31 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 09:39:33,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 09:39:34,009 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 09:39:34,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 09:39:34,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 09:39:34,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 09:39:34,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 09:39:34,028 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 09:39:34,028 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 09:39:34,028 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 09:39:34,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 09:39:34,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 09:39:34,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 09:39:34,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 09:39:34,029 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 09:39:34,029 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 09:39:34,029 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 09:39:34,030 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 09:39:34,030 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 09:39:34,030 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 09:39:34,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 09:39:34,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 09:39:34,030 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 09:39:34,030 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 09:39:34,030 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 09:39:34,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 09:39:34,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 09:39:34,031 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 09:39:34,031 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 09:39:34,031 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 09:39:34,031 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 09:39:34,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 09:39:34,031 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 09:39:34,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 09:39:34,031 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 09:39:34,031 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 09:39:34,031 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 -> d03dd1fa0ccd6c2f276f8e830c5c45c3023586b3294c63b9f2b76eedbdce4e31 [2025-01-09 09:39:34,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 09:39:34,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 09:39:34,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 09:39:34,307 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 09:39:34,307 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 09:39:34,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-14.i [2025-01-09 09:39:35,535 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72052c111/3c0626e8ec1349d59ca008e85572f794/FLAGe441d0f00 [2025-01-09 09:39:35,792 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 09:39:35,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-14.i [2025-01-09 09:39:35,804 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72052c111/3c0626e8ec1349d59ca008e85572f794/FLAGe441d0f00 [2025-01-09 09:39:35,815 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72052c111/3c0626e8ec1349d59ca008e85572f794 [2025-01-09 09:39:35,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 09:39:35,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 09:39:35,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 09:39:35,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 09:39:35,826 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 09:39:35,827 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:39:35" (1/1) ... [2025-01-09 09:39:35,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f92fc21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:35, skipping insertion in model container [2025-01-09 09:39:35,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:39:35" (1/1) ... [2025-01-09 09:39:35,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 09:39:35,939 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_fillercode_fillercodesize_ps-cn-250_file-14.i[916,929] [2025-01-09 09:39:36,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 09:39:36,079 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 09:39:36,088 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_fillercode_fillercodesize_ps-cn-250_file-14.i[916,929] [2025-01-09 09:39:36,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 09:39:36,173 INFO L204 MainTranslator]: Completed translation [2025-01-09 09:39:36,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36 WrapperNode [2025-01-09 09:39:36,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 09:39:36,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 09:39:36,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 09:39:36,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 09:39:36,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,248 INFO L138 Inliner]: procedures = 26, calls = 111, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 575 [2025-01-09 09:39:36,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 09:39:36,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 09:39:36,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 09:39:36,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 09:39:36,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,269 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,292 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]. [2025-01-09 09:39:36,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,320 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,321 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,327 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,347 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 09:39:36,348 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 09:39:36,348 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 09:39:36,348 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 09:39:36,349 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (1/1) ... [2025-01-09 09:39:36,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 09:39:36,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:39:36,385 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) [2025-01-09 09:39:36,391 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 [2025-01-09 09:39:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 09:39:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 09:39:36,406 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 09:39:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 09:39:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 09:39:36,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 09:39:36,518 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 09:39:36,520 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 09:39:37,281 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-01-09 09:39:37,282 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 09:39:37,296 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 09:39:37,297 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 09:39:37,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:39:37 BoogieIcfgContainer [2025-01-09 09:39:37,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 09:39:37,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 09:39:37,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 09:39:37,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 09:39:37,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:39:35" (1/3) ... [2025-01-09 09:39:37,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578a84c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:39:37, skipping insertion in model container [2025-01-09 09:39:37,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:39:36" (2/3) ... [2025-01-09 09:39:37,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578a84c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:39:37, skipping insertion in model container [2025-01-09 09:39:37,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:39:37" (3/3) ... [2025-01-09 09:39:37,306 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-14.i [2025-01-09 09:39:37,332 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 09:39:37,336 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-14.i that has 2 procedures, 250 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 09:39:37,398 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 09:39:37,413 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;@1880179e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 09:39:37,414 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 09:39:37,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 250 states, 149 states have (on average 1.516778523489933) internal successors, (226), 150 states have internal predecessors, (226), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2025-01-09 09:39:37,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 591 [2025-01-09 09:39:37,437 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:39:37,437 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:39:37,438 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:39:37,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:39:37,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1642337888, now seen corresponding path program 1 times [2025-01-09 09:39:37,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:39:37,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205715649] [2025-01-09 09:39:37,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:39:37,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:39:37,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 590 statements into 1 equivalence classes. [2025-01-09 09:39:37,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 590 of 590 statements. [2025-01-09 09:39:37,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:39:37,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:39:37,957 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 194 refuted. 0 times theorem prover too weak. 18818 trivial. 0 not checked. [2025-01-09 09:39:37,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:39:37,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205715649] [2025-01-09 09:39:37,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205715649] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:39:37,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051421195] [2025-01-09 09:39:37,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:39:37,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:39:37,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:39:37,966 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) [2025-01-09 09:39:37,968 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 [2025-01-09 09:39:38,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 590 statements into 1 equivalence classes. [2025-01-09 09:39:38,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 590 of 590 statements. [2025-01-09 09:39:38,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:39:38,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:39:38,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 1283 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 09:39:38,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:39:38,322 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 18818 trivial. 0 not checked. [2025-01-09 09:39:38,322 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 09:39:38,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051421195] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:39:38,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 09:39:38,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 09:39:38,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932481963] [2025-01-09 09:39:38,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:39:38,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 09:39:38,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:39:38,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 09:39:38,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 09:39:38,349 INFO L87 Difference]: Start difference. First operand has 250 states, 149 states have (on average 1.516778523489933) internal successors, (226), 150 states have internal predecessors, (226), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Second operand has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 2 states have call successors, (98) [2025-01-09 09:39:38,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:39:38,404 INFO L93 Difference]: Finished difference Result 493 states and 935 transitions. [2025-01-09 09:39:38,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 09:39:38,407 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 2 states have call successors, (98) Word has length 590 [2025-01-09 09:39:38,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:39:38,414 INFO L225 Difference]: With dead ends: 493 [2025-01-09 09:39:38,414 INFO L226 Difference]: Without dead ends: 246 [2025-01-09 09:39:38,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 09:39:38,424 INFO L435 NwaCegarLoop]: 411 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 09:39:38,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 09:39:38,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2025-01-09 09:39:38,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2025-01-09 09:39:38,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 146 states have (on average 1.4726027397260273) internal successors, (215), 146 states have internal predecessors, (215), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2025-01-09 09:39:38,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 411 transitions. [2025-01-09 09:39:38,487 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 411 transitions. Word has length 590 [2025-01-09 09:39:38,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:39:38,487 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 411 transitions. [2025-01-09 09:39:38,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 2 states have call successors, (98) [2025-01-09 09:39:38,488 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 411 transitions. [2025-01-09 09:39:38,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2025-01-09 09:39:38,505 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:39:38,506 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:39:38,515 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 09:39:38,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 09:39:38,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:39:38,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:39:38,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1013099237, now seen corresponding path program 1 times [2025-01-09 09:39:38,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:39:38,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091489788] [2025-01-09 09:39:38,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:39:38,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:39:38,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 591 statements into 1 equivalence classes. [2025-01-09 09:39:38,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 591 of 591 statements. [2025-01-09 09:39:38,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:39:38,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:39:39,195 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2025-01-09 09:39:39,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:39:39,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091489788] [2025-01-09 09:39:39,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091489788] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:39:39,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:39:39,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 09:39:39,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36317043] [2025-01-09 09:39:39,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:39:39,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 09:39:39,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:39:39,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 09:39:39,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 09:39:39,200 INFO L87 Difference]: Start difference. First operand 246 states and 411 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2025-01-09 09:39:39,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:39:39,276 INFO L93 Difference]: Finished difference Result 624 states and 1046 transitions. [2025-01-09 09:39:39,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 09:39:39,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 591 [2025-01-09 09:39:39,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:39:39,282 INFO L225 Difference]: With dead ends: 624 [2025-01-09 09:39:39,282 INFO L226 Difference]: Without dead ends: 381 [2025-01-09 09:39:39,283 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 [2025-01-09 09:39:39,284 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 210 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 09:39:39,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 902 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 09:39:39,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2025-01-09 09:39:39,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 378. [2025-01-09 09:39:39,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 241 states have (on average 1.5145228215767634) internal successors, (365), 242 states have internal predecessors, (365), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 133 states have call predecessors, (134), 134 states have call successors, (134) [2025-01-09 09:39:39,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 633 transitions. [2025-01-09 09:39:39,335 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 633 transitions. Word has length 591 [2025-01-09 09:39:39,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:39:39,336 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 633 transitions. [2025-01-09 09:39:39,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2025-01-09 09:39:39,337 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 633 transitions. [2025-01-09 09:39:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2025-01-09 09:39:39,354 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:39:39,355 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:39:39,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 09:39:39,358 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:39:39,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:39:39,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1984348889, now seen corresponding path program 1 times [2025-01-09 09:39:39,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:39:39,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774354599] [2025-01-09 09:39:39,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:39:39,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:39:39,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 591 statements into 1 equivalence classes. [2025-01-09 09:39:39,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 591 of 591 statements. [2025-01-09 09:39:39,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:39:39,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:39:39,654 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2025-01-09 09:39:39,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:39:39,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774354599] [2025-01-09 09:39:39,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774354599] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:39:39,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:39:39,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 09:39:39,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634821045] [2025-01-09 09:39:39,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:39:39,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 09:39:39,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:39:39,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 09:39:39,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 09:39:39,659 INFO L87 Difference]: Start difference. First operand 378 states and 633 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2025-01-09 09:39:39,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:39:39,742 INFO L93 Difference]: Finished difference Result 1033 states and 1733 transitions. [2025-01-09 09:39:39,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 09:39:39,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 591 [2025-01-09 09:39:39,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:39:39,751 INFO L225 Difference]: With dead ends: 1033 [2025-01-09 09:39:39,753 INFO L226 Difference]: Without dead ends: 658 [2025-01-09 09:39:39,754 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 [2025-01-09 09:39:39,754 INFO L435 NwaCegarLoop]: 466 mSDtfsCounter, 235 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 09:39:39,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 862 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 09:39:39,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2025-01-09 09:39:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 655. [2025-01-09 09:39:39,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 433 states have (on average 1.5265588914549653) internal successors, (661), 436 states have internal predecessors, (661), 217 states have call successors, (217), 4 states have call predecessors, (217), 4 states have return successors, (217), 214 states have call predecessors, (217), 217 states have call successors, (217) [2025-01-09 09:39:39,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1095 transitions. [2025-01-09 09:39:39,845 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1095 transitions. Word has length 591 [2025-01-09 09:39:39,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:39:39,847 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 1095 transitions. [2025-01-09 09:39:39,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2025-01-09 09:39:39,848 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1095 transitions. [2025-01-09 09:39:39,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2025-01-09 09:39:39,853 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:39:39,854 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:39:39,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 09:39:39,854 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:39:39,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:39:39,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1378636313, now seen corresponding path program 1 times [2025-01-09 09:39:39,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:39:39,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556927782] [2025-01-09 09:39:39,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:39:39,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:39:39,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 591 statements into 1 equivalence classes. [2025-01-09 09:39:39,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 591 of 591 statements. [2025-01-09 09:39:39,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:39:39,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:39:40,324 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2025-01-09 09:39:40,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:39:40,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556927782] [2025-01-09 09:39:40,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556927782] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:39:40,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:39:40,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 09:39:40,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320400879] [2025-01-09 09:39:40,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:39:40,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 09:39:40,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:39:40,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 09:39:40,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 09:39:40,327 INFO L87 Difference]: Start difference. First operand 655 states and 1095 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2025-01-09 09:39:40,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:39:40,995 INFO L93 Difference]: Finished difference Result 2611 states and 4371 transitions. [2025-01-09 09:39:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 09:39:40,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 591 [2025-01-09 09:39:40,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:39:41,006 INFO L225 Difference]: With dead ends: 2611 [2025-01-09 09:39:41,006 INFO L226 Difference]: Without dead ends: 1959 [2025-01-09 09:39:41,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-09 09:39:41,009 INFO L435 NwaCegarLoop]: 816 mSDtfsCounter, 571 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 09:39:41,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 1911 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 09:39:41,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2025-01-09 09:39:41,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1947. [2025-01-09 09:39:41,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1947 states, 1283 states have (on average 1.525331254871395) internal successors, (1957), 1292 states have internal predecessors, (1957), 651 states have call successors, (651), 12 states have call predecessors, (651), 12 states have return successors, (651), 642 states have call predecessors, (651), 651 states have call successors, (651) [2025-01-09 09:39:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1947 states and 3259 transitions. [2025-01-09 09:39:41,304 INFO L78 Accepts]: Start accepts. Automaton has 1947 states and 3259 transitions. Word has length 591 [2025-01-09 09:39:41,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:39:41,306 INFO L471 AbstractCegarLoop]: Abstraction has 1947 states and 3259 transitions. [2025-01-09 09:39:41,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2025-01-09 09:39:41,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1947 states and 3259 transitions. [2025-01-09 09:39:41,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2025-01-09 09:39:41,312 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:39:41,312 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:39:41,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 09:39:41,313 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:39:41,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:39:41,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1548943539, now seen corresponding path program 1 times [2025-01-09 09:39:41,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:39:41,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799187763] [2025-01-09 09:39:41,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:39:41,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:39:41,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 592 statements into 1 equivalence classes. [2025-01-09 09:39:41,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 592 of 592 statements. [2025-01-09 09:39:41,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:39:41,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:39:41,820 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2025-01-09 09:39:41,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:39:41,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799187763] [2025-01-09 09:39:41,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799187763] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:39:41,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:39:41,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 09:39:41,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735118750] [2025-01-09 09:39:41,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:39:41,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 09:39:41,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:39:41,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 09:39:41,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 09:39:41,825 INFO L87 Difference]: Start difference. First operand 1947 states and 3259 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2025-01-09 09:39:42,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:39:42,904 INFO L93 Difference]: Finished difference Result 6361 states and 10545 transitions. [2025-01-09 09:39:42,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 09:39:42,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 592 [2025-01-09 09:39:42,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:39:42,928 INFO L225 Difference]: With dead ends: 6361 [2025-01-09 09:39:42,929 INFO L226 Difference]: Without dead ends: 4417 [2025-01-09 09:39:42,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 09:39:42,935 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 743 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 09:39:42,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1250 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 09:39:42,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4417 states. [2025-01-09 09:39:43,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4417 to 3348. [2025-01-09 09:39:43,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 2051 states have (on average 1.4670892247684058) internal successors, (3009), 2072 states have internal predecessors, (3009), 1272 states have call successors, (1272), 24 states have call predecessors, (1272), 24 states have return successors, (1272), 1251 states have call predecessors, (1272), 1272 states have call successors, (1272) [2025-01-09 09:39:43,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 5553 transitions. [2025-01-09 09:39:43,251 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 5553 transitions. Word has length 592 [2025-01-09 09:39:43,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:39:43,252 INFO L471 AbstractCegarLoop]: Abstraction has 3348 states and 5553 transitions. [2025-01-09 09:39:43,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2025-01-09 09:39:43,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 5553 transitions. [2025-01-09 09:39:43,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2025-01-09 09:39:43,256 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:39:43,256 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:39:43,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 09:39:43,257 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:39:43,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:39:43,257 INFO L85 PathProgramCache]: Analyzing trace with hash 269079861, now seen corresponding path program 1 times [2025-01-09 09:39:43,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:39:43,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858003521] [2025-01-09 09:39:43,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:39:43,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:39:43,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 592 statements into 1 equivalence classes. [2025-01-09 09:39:43,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 592 of 592 statements. [2025-01-09 09:39:43,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:39:43,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:39:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2025-01-09 09:39:44,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:39:44,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858003521] [2025-01-09 09:39:44,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858003521] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:39:44,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:39:44,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 09:39:44,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846870057] [2025-01-09 09:39:44,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:39:44,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 09:39:44,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:39:44,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 09:39:44,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 09:39:44,033 INFO L87 Difference]: Start difference. First operand 3348 states and 5553 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2025-01-09 09:39:45,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:39:45,128 INFO L93 Difference]: Finished difference Result 7828 states and 12990 transitions. [2025-01-09 09:39:45,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 09:39:45,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 592 [2025-01-09 09:39:45,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:39:45,158 INFO L225 Difference]: With dead ends: 7828 [2025-01-09 09:39:45,158 INFO L226 Difference]: Without dead ends: 6699 [2025-01-09 09:39:45,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-09 09:39:45,163 INFO L435 NwaCegarLoop]: 1086 mSDtfsCounter, 1052 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 09:39:45,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 1775 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 09:39:45,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6699 states. [2025-01-09 09:39:45,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6699 to 6691. [2025-01-09 09:39:45,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 4098 states have (on average 1.4675451439726697) internal successors, (6014), 4140 states have internal predecessors, (6014), 2544 states have call successors, (2544), 48 states have call predecessors, (2544), 48 states have return successors, (2544), 2502 states have call predecessors, (2544), 2544 states have call successors, (2544) [2025-01-09 09:39:45,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 11102 transitions. [2025-01-09 09:39:45,634 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 11102 transitions. Word has length 592 [2025-01-09 09:39:45,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:39:45,635 INFO L471 AbstractCegarLoop]: Abstraction has 6691 states and 11102 transitions. [2025-01-09 09:39:45,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2025-01-09 09:39:45,636 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 11102 transitions. [2025-01-09 09:39:45,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2025-01-09 09:39:45,642 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:39:45,642 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:39:45,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 09:39:45,642 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:39:45,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:39:45,643 INFO L85 PathProgramCache]: Analyzing trace with hash 196693303, now seen corresponding path program 1 times [2025-01-09 09:39:45,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:39:45,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378407620] [2025-01-09 09:39:45,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:39:45,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:39:45,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 592 statements into 1 equivalence classes. [2025-01-09 09:39:45,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 592 of 592 statements. [2025-01-09 09:39:45,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:39:45,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:39:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2025-01-09 09:39:46,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:39:46,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378407620] [2025-01-09 09:39:46,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378407620] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:39:46,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:39:46,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 09:39:46,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082736524] [2025-01-09 09:39:46,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:39:46,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 09:39:46,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:39:46,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 09:39:46,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-09 09:39:46,069 INFO L87 Difference]: Start difference. First operand 6691 states and 11102 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2025-01-09 09:39:47,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:39:47,614 INFO L93 Difference]: Finished difference Result 26755 states and 44399 transitions. [2025-01-09 09:39:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 09:39:47,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 592 [2025-01-09 09:39:47,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:39:47,716 INFO L225 Difference]: With dead ends: 26755 [2025-01-09 09:39:47,716 INFO L226 Difference]: Without dead ends: 20067 [2025-01-09 09:39:47,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-09 09:39:47,741 INFO L435 NwaCegarLoop]: 451 mSDtfsCounter, 769 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 09:39:47,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 1048 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 09:39:47,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20067 states. [2025-01-09 09:39:49,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20067 to 20057. [2025-01-09 09:39:49,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20057 states, 12280 states have (on average 1.464983713355049) internal successors, (17990), 12406 states have internal predecessors, (17990), 7632 states have call successors, (7632), 144 states have call predecessors, (7632), 144 states have return successors, (7632), 7506 states have call predecessors, (7632), 7632 states have call successors, (7632) [2025-01-09 09:39:49,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20057 states to 20057 states and 33254 transitions. [2025-01-09 09:39:49,820 INFO L78 Accepts]: Start accepts. Automaton has 20057 states and 33254 transitions. Word has length 592 [2025-01-09 09:39:49,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:39:49,822 INFO L471 AbstractCegarLoop]: Abstraction has 20057 states and 33254 transitions. [2025-01-09 09:39:49,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2025-01-09 09:39:49,823 INFO L276 IsEmpty]: Start isEmpty. Operand 20057 states and 33254 transitions. [2025-01-09 09:39:49,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2025-01-09 09:39:49,837 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:39:49,838 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:39:49,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 09:39:49,838 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:39:49,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:39:49,839 INFO L85 PathProgramCache]: Analyzing trace with hash 706166393, now seen corresponding path program 1 times [2025-01-09 09:39:49,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:39:49,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122188561] [2025-01-09 09:39:49,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:39:49,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:39:49,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 592 statements into 1 equivalence classes. [2025-01-09 09:39:50,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 592 of 592 statements. [2025-01-09 09:39:50,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:39:50,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:39:50,893 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 156 proven. 135 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2025-01-09 09:39:50,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:39:50,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122188561] [2025-01-09 09:39:50,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122188561] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:39:50,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442623410] [2025-01-09 09:39:50,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:39:50,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:39:50,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:39:50,898 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) [2025-01-09 09:39:50,901 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 [2025-01-09 09:39:51,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 592 statements into 1 equivalence classes. [2025-01-09 09:39:51,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 592 of 592 statements. [2025-01-09 09:39:51,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:39:51,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:39:51,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 09:39:51,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:39:51,305 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 4053 proven. 33 refuted. 0 times theorem prover too weak. 14926 trivial. 0 not checked. [2025-01-09 09:39:51,306 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:39:51,660 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 258 proven. 33 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2025-01-09 09:39:51,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442623410] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 09:39:51,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 09:39:51,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 10 [2025-01-09 09:39:51,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386843134] [2025-01-09 09:39:51,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 09:39:51,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 09:39:51,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:39:51,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 09:39:51,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-09 09:39:51,663 INFO L87 Difference]: Start difference. First operand 20057 states and 33254 transitions. Second operand has 10 states, 10 states have (on average 16.4) internal successors, (164), 10 states have internal predecessors, (164), 3 states have call successors, (154), 2 states have call predecessors, (154), 4 states have return successors, (156), 3 states have call predecessors, (156), 3 states have call successors, (156) [2025-01-09 09:39:56,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:39:56,099 INFO L93 Difference]: Finished difference Result 53640 states and 88051 transitions. [2025-01-09 09:39:56,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-01-09 09:39:56,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.4) internal successors, (164), 10 states have internal predecessors, (164), 3 states have call successors, (154), 2 states have call predecessors, (154), 4 states have return successors, (156), 3 states have call predecessors, (156), 3 states have call successors, (156) Word has length 592 [2025-01-09 09:39:56,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:39:56,432 INFO L225 Difference]: With dead ends: 53640 [2025-01-09 09:39:56,432 INFO L226 Difference]: Without dead ends: 33586 [2025-01-09 09:39:56,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1219 GetRequests, 1184 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=337, Invalid=923, Unknown=0, NotChecked=0, Total=1260 [2025-01-09 09:39:56,497 INFO L435 NwaCegarLoop]: 800 mSDtfsCounter, 1120 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 2273 mSolverCounterSat, 799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 3072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 2273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-01-09 09:39:56,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 2717 Invalid, 3072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 2273 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-01-09 09:39:56,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33586 states. [2025-01-09 09:40:00,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33586 to 33091. [2025-01-09 09:40:00,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33091 states, 20132 states have (on average 1.4125273196900456) internal successors, (28437), 20346 states have internal predecessors, (28437), 12602 states have call successors, (12602), 356 states have call predecessors, (12602), 356 states have return successors, (12602), 12388 states have call predecessors, (12602), 12602 states have call successors, (12602) [2025-01-09 09:40:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33091 states to 33091 states and 53641 transitions. [2025-01-09 09:40:00,263 INFO L78 Accepts]: Start accepts. Automaton has 33091 states and 53641 transitions. Word has length 592 [2025-01-09 09:40:00,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:40:00,265 INFO L471 AbstractCegarLoop]: Abstraction has 33091 states and 53641 transitions. [2025-01-09 09:40:00,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.4) internal successors, (164), 10 states have internal predecessors, (164), 3 states have call successors, (154), 2 states have call predecessors, (154), 4 states have return successors, (156), 3 states have call predecessors, (156), 3 states have call successors, (156) [2025-01-09 09:40:00,265 INFO L276 IsEmpty]: Start isEmpty. Operand 33091 states and 53641 transitions. [2025-01-09 09:40:00,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2025-01-09 09:40:00,280 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:40:00,280 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:40:00,287 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 [2025-01-09 09:40:00,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:40:00,481 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:40:00,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:40:00,481 INFO L85 PathProgramCache]: Analyzing trace with hash -313488858, now seen corresponding path program 1 times [2025-01-09 09:40:00,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:40:00,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791546016] [2025-01-09 09:40:00,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:40:00,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:40:00,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 592 statements into 1 equivalence classes. [2025-01-09 09:40:00,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 592 of 592 statements. [2025-01-09 09:40:00,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:40:00,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:40:01,678 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2025-01-09 09:40:01,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:40:01,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791546016] [2025-01-09 09:40:01,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791546016] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:40:01,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:40:01,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 09:40:01,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830014258] [2025-01-09 09:40:01,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:40:01,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 09:40:01,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:40:01,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 09:40:01,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 09:40:01,682 INFO L87 Difference]: Start difference. First operand 33091 states and 53641 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2025-01-09 09:40:09,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:40:09,481 INFO L93 Difference]: Finished difference Result 103915 states and 168341 transitions. [2025-01-09 09:40:09,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 09:40:09,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 592 [2025-01-09 09:40:09,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:40:09,909 INFO L225 Difference]: With dead ends: 103915 [2025-01-09 09:40:09,909 INFO L226 Difference]: Without dead ends: 77751 [2025-01-09 09:40:10,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2025-01-09 09:40:10,010 INFO L435 NwaCegarLoop]: 924 mSDtfsCounter, 1178 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2506 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-01-09 09:40:10,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 2506 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-01-09 09:40:10,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77751 states. [2025-01-09 09:40:16,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77751 to 68712. [2025-01-09 09:40:16,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68712 states, 42451 states have (on average 1.4203198982356129) internal successors, (60294), 42953 states have internal predecessors, (60294), 25538 states have call successors, (25538), 722 states have call predecessors, (25538), 722 states have return successors, (25538), 25036 states have call predecessors, (25538), 25538 states have call successors, (25538) [2025-01-09 09:40:17,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68712 states to 68712 states and 111370 transitions. [2025-01-09 09:40:17,208 INFO L78 Accepts]: Start accepts. Automaton has 68712 states and 111370 transitions. Word has length 592 [2025-01-09 09:40:17,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:40:17,210 INFO L471 AbstractCegarLoop]: Abstraction has 68712 states and 111370 transitions. [2025-01-09 09:40:17,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2025-01-09 09:40:17,210 INFO L276 IsEmpty]: Start isEmpty. Operand 68712 states and 111370 transitions. [2025-01-09 09:40:17,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2025-01-09 09:40:17,238 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:40:17,238 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:40:17,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 09:40:17,238 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:40:17,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:40:17,239 INFO L85 PathProgramCache]: Analyzing trace with hash -707855644, now seen corresponding path program 1 times [2025-01-09 09:40:17,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:40:17,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073770770] [2025-01-09 09:40:17,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:40:17,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:40:17,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 592 statements into 1 equivalence classes. [2025-01-09 09:40:17,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 592 of 592 statements. [2025-01-09 09:40:17,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:40:17,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:40:18,445 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 267 proven. 24 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2025-01-09 09:40:18,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:40:18,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073770770] [2025-01-09 09:40:18,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073770770] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:40:18,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511878646] [2025-01-09 09:40:18,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:40:18,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:40:18,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:40:18,460 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) [2025-01-09 09:40:18,464 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 [2025-01-09 09:40:18,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 592 statements into 1 equivalence classes. [2025-01-09 09:40:18,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 592 of 592 statements. [2025-01-09 09:40:18,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:40:18,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:40:18,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 1278 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 09:40:18,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:40:19,127 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 3123 proven. 24 refuted. 0 times theorem prover too weak. 15865 trivial. 0 not checked. [2025-01-09 09:40:19,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:40:19,605 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 267 proven. 24 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2025-01-09 09:40:19,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511878646] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 09:40:19,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 09:40:19,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-01-09 09:40:19,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592969627] [2025-01-09 09:40:19,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 09:40:19,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 09:40:19,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:40:19,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 09:40:19,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 09:40:19,607 INFO L87 Difference]: Start difference. First operand 68712 states and 111370 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2025-01-09 09:40:22,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:40:22,862 INFO L93 Difference]: Finished difference Result 112640 states and 182653 transitions. [2025-01-09 09:40:23,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 09:40:23,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) Word has length 592 [2025-01-09 09:40:23,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:40:23,233 INFO L225 Difference]: With dead ends: 112640 [2025-01-09 09:40:23,233 INFO L226 Difference]: Without dead ends: 44071 [2025-01-09 09:40:23,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1181 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2025-01-09 09:40:23,421 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 258 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 09:40:23,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 707 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 09:40:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44071 states. [2025-01-09 09:40:27,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44071 to 40185. [2025-01-09 09:40:27,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40185 states, 26737 states have (on average 1.4640385981972548) internal successors, (39144), 26969 states have internal predecessors, (39144), 13007 states have call successors, (13007), 440 states have call predecessors, (13007), 440 states have return successors, (13007), 12775 states have call predecessors, (13007), 13007 states have call successors, (13007) [2025-01-09 09:40:27,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40185 states to 40185 states and 65158 transitions. [2025-01-09 09:40:27,845 INFO L78 Accepts]: Start accepts. Automaton has 40185 states and 65158 transitions. Word has length 592 [2025-01-09 09:40:27,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:40:27,846 INFO L471 AbstractCegarLoop]: Abstraction has 40185 states and 65158 transitions. [2025-01-09 09:40:27,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2025-01-09 09:40:27,846 INFO L276 IsEmpty]: Start isEmpty. Operand 40185 states and 65158 transitions. [2025-01-09 09:40:27,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2025-01-09 09:40:27,861 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:40:27,861 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:40:27,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 09:40:28,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:40:28,063 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:40:28,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:40:28,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1987719322, now seen corresponding path program 1 times [2025-01-09 09:40:28,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:40:28,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472663604] [2025-01-09 09:40:28,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:40:28,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:40:28,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 592 statements into 1 equivalence classes. [2025-01-09 09:40:28,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 592 of 592 statements. [2025-01-09 09:40:28,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:40:28,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:40:28,592 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 201 proven. 90 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2025-01-09 09:40:28,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:40:28,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472663604] [2025-01-09 09:40:28,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472663604] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:40:28,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874568633] [2025-01-09 09:40:28,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:40:28,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:40:28,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:40:28,600 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) [2025-01-09 09:40:28,601 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 [2025-01-09 09:40:28,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 592 statements into 1 equivalence classes. [2025-01-09 09:40:28,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 592 of 592 statements. [2025-01-09 09:40:28,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:40:28,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:40:28,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-01-09 09:40:28,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:40:30,564 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 11633 proven. 309 refuted. 0 times theorem prover too weak. 7070 trivial. 0 not checked. [2025-01-09 09:40:30,565 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:40:31,289 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 201 proven. 90 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2025-01-09 09:40:31,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874568633] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 09:40:31,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 09:40:31,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13, 7] total 21 [2025-01-09 09:40:31,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747264063] [2025-01-09 09:40:31,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 09:40:31,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-09 09:40:31,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:40:31,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-09 09:40:31,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2025-01-09 09:40:31,293 INFO L87 Difference]: Start difference. First operand 40185 states and 65158 transitions. Second operand has 21 states, 21 states have (on average 10.095238095238095) internal successors, (212), 20 states have internal predecessors, (212), 6 states have call successors, (175), 4 states have call predecessors, (175), 7 states have return successors, (177), 6 states have call predecessors, (177), 6 states have call successors, (177) [2025-01-09 09:40:45,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:40:45,384 INFO L93 Difference]: Finished difference Result 162181 states and 261242 transitions. [2025-01-09 09:40:45,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2025-01-09 09:40:45,384 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.095238095238095) internal successors, (212), 20 states have internal predecessors, (212), 6 states have call successors, (175), 4 states have call predecessors, (175), 7 states have return successors, (177), 6 states have call predecessors, (177), 6 states have call successors, (177) Word has length 592 [2025-01-09 09:40:45,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:40:45,819 INFO L225 Difference]: With dead ends: 162181 [2025-01-09 09:40:45,820 INFO L226 Difference]: Without dead ends: 122139 [2025-01-09 09:40:45,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1263 GetRequests, 1176 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2832 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1692, Invalid=6140, Unknown=0, NotChecked=0, Total=7832 [2025-01-09 09:40:45,937 INFO L435 NwaCegarLoop]: 576 mSDtfsCounter, 2850 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 2620 mSolverCounterSat, 1949 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2952 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 4569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1949 IncrementalHoareTripleChecker+Valid, 2620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-01-09 09:40:45,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2952 Valid, 2731 Invalid, 4569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1949 Valid, 2620 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-01-09 09:40:46,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122139 states.