./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-47.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-47.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 cd3632043214757caefbf8e806ad884979d5d0588e1edb63db72323f63ea6c69 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 09:43:22,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 09:43:22,739 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 09:43:22,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 09:43:22,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 09:43:22,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 09:43:22,757 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 09:43:22,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 09:43:22,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 09:43:22,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 09:43:22,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 09:43:22,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 09:43:22,758 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 09:43:22,759 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 09:43:22,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 09:43:22,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 09:43:22,759 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 09:43:22,760 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 09:43:22,760 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 09:43:22,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 09:43:22,760 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 -> cd3632043214757caefbf8e806ad884979d5d0588e1edb63db72323f63ea6c69 [2025-01-09 09:43:23,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 09:43:23,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 09:43:23,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 09:43:23,017 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 09:43:23,017 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 09:43:23,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-47.i [2025-01-09 09:43:24,204 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/167119a38/a6f9403b7aea4f118215785e7fcba481/FLAG77989f21e [2025-01-09 09:43:24,563 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 09:43:24,567 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-47.i [2025-01-09 09:43:24,582 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/167119a38/a6f9403b7aea4f118215785e7fcba481/FLAG77989f21e [2025-01-09 09:43:24,599 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/167119a38/a6f9403b7aea4f118215785e7fcba481 [2025-01-09 09:43:24,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 09:43:24,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 09:43:24,604 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 09:43:24,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 09:43:24,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 09:43:24,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:24,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c13a1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24, skipping insertion in model container [2025-01-09 09:43:24,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:24,635 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 09:43:24,732 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-47.i[916,929] [2025-01-09 09:43:24,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 09:43:24,812 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 09:43:24,819 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-47.i[916,929] [2025-01-09 09:43:24,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 09:43:24,868 INFO L204 MainTranslator]: Completed translation [2025-01-09 09:43:24,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24 WrapperNode [2025-01-09 09:43:24,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 09:43:24,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 09:43:24,871 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 09:43:24,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 09:43:24,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:24,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:24,941 INFO L138 Inliner]: procedures = 26, calls = 79, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 532 [2025-01-09 09:43:24,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 09:43:24,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 09:43:24,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 09:43:24,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 09:43:24,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:24,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:24,963 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:25,002 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 09:43:25,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:25,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:25,023 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:25,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:25,039 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:25,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:25,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:25,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 09:43:25,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 09:43:25,054 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 09:43:25,054 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 09:43:25,055 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (1/1) ... [2025-01-09 09:43:25,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 09:43:25,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:43:25,077 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 09:43:25,082 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 09:43:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 09:43:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 09:43:25,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 09:43:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 09:43:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 09:43:25,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 09:43:25,167 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 09:43:25,169 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 09:43:25,816 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2025-01-09 09:43:25,816 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 09:43:25,824 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 09:43:25,824 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 09:43:25,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:43:25 BoogieIcfgContainer [2025-01-09 09:43:25,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 09:43:25,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 09:43:25,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 09:43:25,829 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 09:43:25,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:43:24" (1/3) ... [2025-01-09 09:43:25,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed2d4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:43:25, skipping insertion in model container [2025-01-09 09:43:25,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:43:24" (2/3) ... [2025-01-09 09:43:25,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed2d4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:43:25, skipping insertion in model container [2025-01-09 09:43:25,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:43:25" (3/3) ... [2025-01-09 09:43:25,831 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-47.i [2025-01-09 09:43:25,840 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 09:43:25,842 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-47.i that has 2 procedures, 226 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 09:43:25,878 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 09:43:25,885 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;@4bd71edb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 09:43:25,885 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 09:43:25,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 157 states have (on average 1.5477707006369428) internal successors, (243), 158 states have internal predecessors, (243), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2025-01-09 09:43:25,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2025-01-09 09:43:25,902 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:25,903 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:25,903 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:25,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:25,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1030564658, now seen corresponding path program 1 times [2025-01-09 09:43:25,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:25,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523216687] [2025-01-09 09:43:25,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:25,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:26,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 428 statements into 1 equivalence classes. [2025-01-09 09:43:26,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 428 of 428 statements. [2025-01-09 09:43:26,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:26,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:26,338 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 8450 trivial. 0 not checked. [2025-01-09 09:43:26,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:26,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523216687] [2025-01-09 09:43:26,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523216687] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:43:26,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648758157] [2025-01-09 09:43:26,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:26,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:43:26,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:43:26,346 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 09:43:26,347 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 09:43:26,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 428 statements into 1 equivalence classes. [2025-01-09 09:43:26,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 428 of 428 statements. [2025-01-09 09:43:26,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:26,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:26,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 09:43:26,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:43:26,639 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 8450 trivial. 0 not checked. [2025-01-09 09:43:26,640 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 09:43:26,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648758157] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:43:26,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 09:43:26,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 09:43:26,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343907449] [2025-01-09 09:43:26,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:43:26,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 09:43:26,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:43:26,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 09:43:26,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 09:43:26,667 INFO L87 Difference]: Start difference. First operand has 226 states, 157 states have (on average 1.5477707006369428) internal successors, (243), 158 states have internal predecessors, (243), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 2 states have call successors, (66) [2025-01-09 09:43:26,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:43:26,704 INFO L93 Difference]: Finished difference Result 446 states and 811 transitions. [2025-01-09 09:43:26,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 09:43:26,705 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 2 states have call successors, (66) Word has length 428 [2025-01-09 09:43:26,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:43:26,714 INFO L225 Difference]: With dead ends: 446 [2025-01-09 09:43:26,715 INFO L226 Difference]: Without dead ends: 223 [2025-01-09 09:43:26,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 429 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 09:43:26,724 INFO L435 NwaCegarLoop]: 366 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, 366 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 09:43:26,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 09:43:26,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2025-01-09 09:43:26,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2025-01-09 09:43:26,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 155 states have (on average 1.5096774193548388) internal successors, (234), 155 states have internal predecessors, (234), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2025-01-09 09:43:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 366 transitions. [2025-01-09 09:43:26,773 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 366 transitions. Word has length 428 [2025-01-09 09:43:26,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:43:26,774 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 366 transitions. [2025-01-09 09:43:26,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 2 states have call successors, (66) [2025-01-09 09:43:26,774 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 366 transitions. [2025-01-09 09:43:26,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2025-01-09 09:43:26,787 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:26,787 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:26,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 09:43:26,988 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 09:43:26,988 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:26,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:26,989 INFO L85 PathProgramCache]: Analyzing trace with hash 985461035, now seen corresponding path program 1 times [2025-01-09 09:43:26,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:26,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006261408] [2025-01-09 09:43:26,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:26,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:27,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 429 statements into 1 equivalence classes. [2025-01-09 09:43:27,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 429 of 429 statements. [2025-01-09 09:43:27,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:27,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2025-01-09 09:43:27,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:27,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006261408] [2025-01-09 09:43:27,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006261408] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:43:27,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:43:27,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 09:43:27,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107009692] [2025-01-09 09:43:27,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:43:27,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 09:43:27,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:43:27,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 09:43:27,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 09:43:27,409 INFO L87 Difference]: Start difference. First operand 223 states and 366 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:27,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:43:27,516 INFO L93 Difference]: Finished difference Result 596 states and 979 transitions. [2025-01-09 09:43:27,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 09:43:27,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 429 [2025-01-09 09:43:27,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:43:27,520 INFO L225 Difference]: With dead ends: 596 [2025-01-09 09:43:27,521 INFO L226 Difference]: Without dead ends: 376 [2025-01-09 09:43:27,522 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 09:43:27,522 INFO L435 NwaCegarLoop]: 573 mSDtfsCounter, 239 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 09:43:27,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 912 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 09:43:27,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2025-01-09 09:43:27,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 373. [2025-01-09 09:43:27,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 277 states have (on average 1.523465703971119) internal successors, (422), 278 states have internal predecessors, (422), 93 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (93), 92 states have call predecessors, (93), 93 states have call successors, (93) [2025-01-09 09:43:27,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 608 transitions. [2025-01-09 09:43:27,560 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 608 transitions. Word has length 429 [2025-01-09 09:43:27,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:43:27,561 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 608 transitions. [2025-01-09 09:43:27,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:27,562 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 608 transitions. [2025-01-09 09:43:27,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2025-01-09 09:43:27,568 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:27,568 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:27,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 09:43:27,569 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:27,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:27,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1338049593, now seen corresponding path program 1 times [2025-01-09 09:43:27,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:27,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532934174] [2025-01-09 09:43:27,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:27,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:27,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 430 statements into 1 equivalence classes. [2025-01-09 09:43:27,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 430 of 430 statements. [2025-01-09 09:43:27,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:27,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2025-01-09 09:43:28,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:28,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532934174] [2025-01-09 09:43:28,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532934174] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:43:28,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:43:28,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 09:43:28,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454581014] [2025-01-09 09:43:28,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:43:28,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 09:43:28,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:43:28,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 09:43:28,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 09:43:28,294 INFO L87 Difference]: Start difference. First operand 373 states and 608 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:28,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:43:28,371 INFO L93 Difference]: Finished difference Result 1113 states and 1818 transitions. [2025-01-09 09:43:28,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 09:43:28,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 430 [2025-01-09 09:43:28,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:43:28,382 INFO L225 Difference]: With dead ends: 1113 [2025-01-09 09:43:28,383 INFO L226 Difference]: Without dead ends: 743 [2025-01-09 09:43:28,385 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 09:43:28,387 INFO L435 NwaCegarLoop]: 458 mSDtfsCounter, 230 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 09:43:28,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 814 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 09:43:28,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2025-01-09 09:43:28,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 741. [2025-01-09 09:43:28,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 550 states have (on average 1.5236363636363637) internal successors, (838), 552 states have internal predecessors, (838), 186 states have call successors, (186), 4 states have call predecessors, (186), 4 states have return successors, (186), 184 states have call predecessors, (186), 186 states have call successors, (186) [2025-01-09 09:43:28,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1210 transitions. [2025-01-09 09:43:28,496 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1210 transitions. Word has length 430 [2025-01-09 09:43:28,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:43:28,497 INFO L471 AbstractCegarLoop]: Abstraction has 741 states and 1210 transitions. [2025-01-09 09:43:28,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:28,498 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1210 transitions. [2025-01-09 09:43:28,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2025-01-09 09:43:28,503 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:28,503 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:28,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 09:43:28,503 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:28,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:28,504 INFO L85 PathProgramCache]: Analyzing trace with hash -659723739, now seen corresponding path program 1 times [2025-01-09 09:43:28,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:28,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645401353] [2025-01-09 09:43:28,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:28,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:28,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 431 statements into 1 equivalence classes. [2025-01-09 09:43:28,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 431 of 431 statements. [2025-01-09 09:43:28,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:28,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:29,208 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2025-01-09 09:43:29,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:29,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645401353] [2025-01-09 09:43:29,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645401353] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:43:29,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:43:29,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 09:43:29,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359670811] [2025-01-09 09:43:29,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:43:29,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 09:43:29,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:43:29,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 09:43:29,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 09:43:29,213 INFO L87 Difference]: Start difference. First operand 741 states and 1210 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:29,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:43:29,948 INFO L93 Difference]: Finished difference Result 2776 states and 4511 transitions. [2025-01-09 09:43:29,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 09:43:29,949 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), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 431 [2025-01-09 09:43:29,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:43:29,960 INFO L225 Difference]: With dead ends: 2776 [2025-01-09 09:43:29,960 INFO L226 Difference]: Without dead ends: 2038 [2025-01-09 09:43:29,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-01-09 09:43:29,965 INFO L435 NwaCegarLoop]: 404 mSDtfsCounter, 918 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 536 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 536 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 09:43:29,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 1380 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [536 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 09:43:29,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2025-01-09 09:43:30,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 1525. [2025-01-09 09:43:30,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1144 states have (on average 1.513986013986014) internal successors, (1732), 1148 states have internal predecessors, (1732), 372 states have call successors, (372), 8 states have call predecessors, (372), 8 states have return successors, (372), 368 states have call predecessors, (372), 372 states have call successors, (372) [2025-01-09 09:43:30,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2476 transitions. [2025-01-09 09:43:30,158 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2476 transitions. Word has length 431 [2025-01-09 09:43:30,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:43:30,159 INFO L471 AbstractCegarLoop]: Abstraction has 1525 states and 2476 transitions. [2025-01-09 09:43:30,159 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), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:30,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2476 transitions. [2025-01-09 09:43:30,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2025-01-09 09:43:30,164 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:30,164 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:30,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 09:43:30,164 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:30,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:30,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1946299815, now seen corresponding path program 1 times [2025-01-09 09:43:30,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:30,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496597204] [2025-01-09 09:43:30,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:30,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:30,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 431 statements into 1 equivalence classes. [2025-01-09 09:43:30,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 431 of 431 statements. [2025-01-09 09:43:30,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:30,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:30,910 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2025-01-09 09:43:30,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:30,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496597204] [2025-01-09 09:43:30,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496597204] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:43:30,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:43:30,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 09:43:30,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937644791] [2025-01-09 09:43:30,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:43:30,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 09:43:30,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:43:30,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 09:43:30,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 09:43:30,913 INFO L87 Difference]: Start difference. First operand 1525 states and 2476 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:31,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:43:31,286 INFO L93 Difference]: Finished difference Result 2663 states and 4323 transitions. [2025-01-09 09:43:31,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 09:43:31,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 431 [2025-01-09 09:43:31,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:43:31,293 INFO L225 Difference]: With dead ends: 2663 [2025-01-09 09:43:31,294 INFO L226 Difference]: Without dead ends: 1141 [2025-01-09 09:43:31,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 09:43:31,297 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 321 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 09:43:31,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 1058 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 09:43:31,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2025-01-09 09:43:31,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1052. [2025-01-09 09:43:31,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 794 states have (on average 1.5314861460957179) internal successors, (1216), 796 states have internal predecessors, (1216), 252 states have call successors, (252), 5 states have call predecessors, (252), 5 states have return successors, (252), 250 states have call predecessors, (252), 252 states have call successors, (252) [2025-01-09 09:43:31,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1720 transitions. [2025-01-09 09:43:31,388 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1720 transitions. Word has length 431 [2025-01-09 09:43:31,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:43:31,389 INFO L471 AbstractCegarLoop]: Abstraction has 1052 states and 1720 transitions. [2025-01-09 09:43:31,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:31,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1720 transitions. [2025-01-09 09:43:31,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2025-01-09 09:43:31,395 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:31,395 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:31,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 09:43:31,395 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:31,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:31,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1914746464, now seen corresponding path program 1 times [2025-01-09 09:43:31,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:31,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614438705] [2025-01-09 09:43:31,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:31,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:31,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 433 statements into 1 equivalence classes. [2025-01-09 09:43:31,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 433 of 433 statements. [2025-01-09 09:43:31,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:31,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:32,161 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2025-01-09 09:43:32,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:32,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614438705] [2025-01-09 09:43:32,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614438705] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:43:32,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:43:32,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 09:43:32,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262202580] [2025-01-09 09:43:32,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:43:32,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 09:43:32,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:43:32,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 09:43:32,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 09:43:32,163 INFO L87 Difference]: Start difference. First operand 1052 states and 1720 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:33,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:43:33,018 INFO L93 Difference]: Finished difference Result 3457 states and 5618 transitions. [2025-01-09 09:43:33,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 09:43:33,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 433 [2025-01-09 09:43:33,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:43:33,033 INFO L225 Difference]: With dead ends: 3457 [2025-01-09 09:43:33,033 INFO L226 Difference]: Without dead ends: 2659 [2025-01-09 09:43:33,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-01-09 09:43:33,037 INFO L435 NwaCegarLoop]: 539 mSDtfsCounter, 790 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 09:43:33,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1801 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 09:43:33,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2025-01-09 09:43:33,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2651. [2025-01-09 09:43:33,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2651 states, 2057 states have (on average 1.53475935828877) internal successors, (3157), 2065 states have internal predecessors, (3157), 580 states have call successors, (580), 13 states have call predecessors, (580), 13 states have return successors, (580), 572 states have call predecessors, (580), 580 states have call successors, (580) [2025-01-09 09:43:33,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2651 states to 2651 states and 4317 transitions. [2025-01-09 09:43:33,243 INFO L78 Accepts]: Start accepts. Automaton has 2651 states and 4317 transitions. Word has length 433 [2025-01-09 09:43:33,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:43:33,243 INFO L471 AbstractCegarLoop]: Abstraction has 2651 states and 4317 transitions. [2025-01-09 09:43:33,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:33,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2651 states and 4317 transitions. [2025-01-09 09:43:33,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2025-01-09 09:43:33,247 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:33,247 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:33,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 09:43:33,247 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:33,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:33,248 INFO L85 PathProgramCache]: Analyzing trace with hash 26758807, now seen corresponding path program 1 times [2025-01-09 09:43:33,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:33,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813365608] [2025-01-09 09:43:33,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:33,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:33,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 434 statements into 1 equivalence classes. [2025-01-09 09:43:33,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 434 of 434 statements. [2025-01-09 09:43:33,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:33,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2025-01-09 09:43:33,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:33,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813365608] [2025-01-09 09:43:33,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813365608] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:43:33,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:43:33,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 09:43:33,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105221210] [2025-01-09 09:43:33,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:43:33,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 09:43:33,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:43:33,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 09:43:33,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 09:43:33,797 INFO L87 Difference]: Start difference. First operand 2651 states and 4317 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:34,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:43:34,674 INFO L93 Difference]: Finished difference Result 8957 states and 14560 transitions. [2025-01-09 09:43:34,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 09:43:34,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 434 [2025-01-09 09:43:34,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:43:34,708 INFO L225 Difference]: With dead ends: 8957 [2025-01-09 09:43:34,708 INFO L226 Difference]: Without dead ends: 6895 [2025-01-09 09:43:34,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-01-09 09:43:34,717 INFO L435 NwaCegarLoop]: 369 mSDtfsCounter, 531 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 09:43:34,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 1147 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 09:43:34,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6895 states. [2025-01-09 09:43:35,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 5155. [2025-01-09 09:43:35,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 4035 states have (on average 1.5070631970260222) internal successors, (6081), 4051 states have internal predecessors, (6081), 1094 states have call successors, (1094), 25 states have call predecessors, (1094), 25 states have return successors, (1094), 1078 states have call predecessors, (1094), 1094 states have call successors, (1094) [2025-01-09 09:43:35,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 8269 transitions. [2025-01-09 09:43:35,079 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 8269 transitions. Word has length 434 [2025-01-09 09:43:35,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:43:35,080 INFO L471 AbstractCegarLoop]: Abstraction has 5155 states and 8269 transitions. [2025-01-09 09:43:35,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:35,080 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 8269 transitions. [2025-01-09 09:43:35,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2025-01-09 09:43:35,084 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:35,084 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:35,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 09:43:35,084 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:35,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:35,085 INFO L85 PathProgramCache]: Analyzing trace with hash -394467427, now seen corresponding path program 1 times [2025-01-09 09:43:35,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:35,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283860794] [2025-01-09 09:43:35,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:35,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:35,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 435 statements into 1 equivalence classes. [2025-01-09 09:43:35,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 435 of 435 statements. [2025-01-09 09:43:35,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:35,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:37,195 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2025-01-09 09:43:37,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:37,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283860794] [2025-01-09 09:43:37,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283860794] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:43:37,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:43:37,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 09:43:37,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042972197] [2025-01-09 09:43:37,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:43:37,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 09:43:37,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:43:37,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 09:43:37,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 09:43:37,198 INFO L87 Difference]: Start difference. First operand 5155 states and 8269 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:38,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:43:38,325 INFO L93 Difference]: Finished difference Result 8581 states and 13696 transitions. [2025-01-09 09:43:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 09:43:38,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 435 [2025-01-09 09:43:38,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:43:38,361 INFO L225 Difference]: With dead ends: 8581 [2025-01-09 09:43:38,361 INFO L226 Difference]: Without dead ends: 6222 [2025-01-09 09:43:38,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 09:43:38,371 INFO L435 NwaCegarLoop]: 670 mSDtfsCounter, 419 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 09:43:38,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1269 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 09:43:38,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6222 states. [2025-01-09 09:43:38,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6222 to 6216. [2025-01-09 09:43:38,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6216 states, 4788 states have (on average 1.490810359231412) internal successors, (7138), 4810 states have internal predecessors, (7138), 1382 states have call successors, (1382), 45 states have call predecessors, (1382), 45 states have return successors, (1382), 1360 states have call predecessors, (1382), 1382 states have call successors, (1382) [2025-01-09 09:43:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6216 states to 6216 states and 9902 transitions. [2025-01-09 09:43:38,980 INFO L78 Accepts]: Start accepts. Automaton has 6216 states and 9902 transitions. Word has length 435 [2025-01-09 09:43:38,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:43:38,980 INFO L471 AbstractCegarLoop]: Abstraction has 6216 states and 9902 transitions. [2025-01-09 09:43:38,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:38,981 INFO L276 IsEmpty]: Start isEmpty. Operand 6216 states and 9902 transitions. [2025-01-09 09:43:38,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2025-01-09 09:43:38,984 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:38,984 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:38,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 09:43:38,985 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:38,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:38,985 INFO L85 PathProgramCache]: Analyzing trace with hash 716122508, now seen corresponding path program 1 times [2025-01-09 09:43:38,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:38,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91683815] [2025-01-09 09:43:38,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:38,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:39,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 435 statements into 1 equivalence classes. [2025-01-09 09:43:39,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 435 of 435 statements. [2025-01-09 09:43:39,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:39,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:39,175 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2025-01-09 09:43:39,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:39,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91683815] [2025-01-09 09:43:39,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91683815] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:43:39,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:43:39,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 09:43:39,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408099804] [2025-01-09 09:43:39,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:43:39,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 09:43:39,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:43:39,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 09:43:39,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 09:43:39,181 INFO L87 Difference]: Start difference. First operand 6216 states and 9902 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:39,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:43:39,742 INFO L93 Difference]: Finished difference Result 17966 states and 28580 transitions. [2025-01-09 09:43:39,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 09:43:39,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 435 [2025-01-09 09:43:39,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:43:39,809 INFO L225 Difference]: With dead ends: 17966 [2025-01-09 09:43:39,810 INFO L226 Difference]: Without dead ends: 12099 [2025-01-09 09:43:39,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 09:43:39,830 INFO L435 NwaCegarLoop]: 483 mSDtfsCounter, 228 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 09:43:39,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 833 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 09:43:39,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12099 states. [2025-01-09 09:43:40,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12099 to 11993. [2025-01-09 09:43:40,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11993 states, 9205 states have (on average 1.482563824008691) internal successors, (13647), 9249 states have internal predecessors, (13647), 2698 states have call successors, (2698), 89 states have call predecessors, (2698), 89 states have return successors, (2698), 2654 states have call predecessors, (2698), 2698 states have call successors, (2698) [2025-01-09 09:43:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11993 states to 11993 states and 19043 transitions. [2025-01-09 09:43:40,691 INFO L78 Accepts]: Start accepts. Automaton has 11993 states and 19043 transitions. Word has length 435 [2025-01-09 09:43:40,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:43:40,692 INFO L471 AbstractCegarLoop]: Abstraction has 11993 states and 19043 transitions. [2025-01-09 09:43:40,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:40,693 INFO L276 IsEmpty]: Start isEmpty. Operand 11993 states and 19043 transitions. [2025-01-09 09:43:40,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2025-01-09 09:43:40,697 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:40,698 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:40,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 09:43:40,698 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:40,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:40,699 INFO L85 PathProgramCache]: Analyzing trace with hash -509983486, now seen corresponding path program 1 times [2025-01-09 09:43:40,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:40,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067873513] [2025-01-09 09:43:40,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:40,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:40,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 436 statements into 1 equivalence classes. [2025-01-09 09:43:40,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 436 of 436 statements. [2025-01-09 09:43:40,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:40,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2025-01-09 09:43:43,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:43,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067873513] [2025-01-09 09:43:43,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067873513] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:43:43,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:43:43,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 09:43:43,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016823595] [2025-01-09 09:43:43,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:43:43,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 09:43:43,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:43:43,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 09:43:43,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 09:43:43,489 INFO L87 Difference]: Start difference. First operand 11993 states and 19043 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:44,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:43:44,720 INFO L93 Difference]: Finished difference Result 15413 states and 24468 transitions. [2025-01-09 09:43:44,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 09:43:44,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 436 [2025-01-09 09:43:44,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:43:44,756 INFO L225 Difference]: With dead ends: 15413 [2025-01-09 09:43:44,756 INFO L226 Difference]: Without dead ends: 12012 [2025-01-09 09:43:44,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 09:43:44,765 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 528 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 09:43:44,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 1508 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 09:43:44,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12012 states. [2025-01-09 09:43:45,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12012 to 12002. [2025-01-09 09:43:45,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12002 states, 9214 states have (on average 1.4820924679835035) internal successors, (13656), 9258 states have internal predecessors, (13656), 2698 states have call successors, (2698), 89 states have call predecessors, (2698), 89 states have return successors, (2698), 2654 states have call predecessors, (2698), 2698 states have call successors, (2698) [2025-01-09 09:43:45,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12002 states to 12002 states and 19052 transitions. [2025-01-09 09:43:45,508 INFO L78 Accepts]: Start accepts. Automaton has 12002 states and 19052 transitions. Word has length 436 [2025-01-09 09:43:45,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:43:45,509 INFO L471 AbstractCegarLoop]: Abstraction has 12002 states and 19052 transitions. [2025-01-09 09:43:45,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:43:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand 12002 states and 19052 transitions. [2025-01-09 09:43:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2025-01-09 09:43:45,514 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:45,514 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:45,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 09:43:45,514 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:45,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:45,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1541000512, now seen corresponding path program 1 times [2025-01-09 09:43:45,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:45,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770920405] [2025-01-09 09:43:45,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:45,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:45,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 436 statements into 1 equivalence classes. [2025-01-09 09:43:45,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 436 of 436 statements. [2025-01-09 09:43:45,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:45,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:46,289 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 438 proven. 129 refuted. 0 times theorem prover too weak. 8013 trivial. 0 not checked. [2025-01-09 09:43:46,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:46,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770920405] [2025-01-09 09:43:46,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770920405] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:43:46,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357415153] [2025-01-09 09:43:46,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:46,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:43:46,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:43:46,293 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 09:43:46,295 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 09:43:46,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 436 statements into 1 equivalence classes. [2025-01-09 09:43:46,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 436 of 436 statements. [2025-01-09 09:43:46,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:46,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:46,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 09:43:46,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:43:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 4067 proven. 99 refuted. 0 times theorem prover too weak. 4414 trivial. 0 not checked. [2025-01-09 09:43:47,006 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:43:47,702 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 135 proven. 60 refuted. 0 times theorem prover too weak. 8385 trivial. 0 not checked. [2025-01-09 09:43:47,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357415153] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 09:43:47,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 09:43:47,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7] total 14 [2025-01-09 09:43:47,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313308741] [2025-01-09 09:43:47,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 09:43:47,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 09:43:47,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:43:47,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 09:43:47,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2025-01-09 09:43:47,705 INFO L87 Difference]: Start difference. First operand 12002 states and 19052 transitions. Second operand has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 5 states have call successors, (100), 3 states have call predecessors, (100), 6 states have return successors, (102), 5 states have call predecessors, (102), 5 states have call successors, (102) [2025-01-09 09:43:49,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:43:49,223 INFO L93 Difference]: Finished difference Result 23871 states and 37377 transitions. [2025-01-09 09:43:49,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-09 09:43:49,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 5 states have call successors, (100), 3 states have call predecessors, (100), 6 states have return successors, (102), 5 states have call predecessors, (102), 5 states have call successors, (102) Word has length 436 [2025-01-09 09:43:49,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:43:49,275 INFO L225 Difference]: With dead ends: 23871 [2025-01-09 09:43:49,275 INFO L226 Difference]: Without dead ends: 12678 [2025-01-09 09:43:49,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 896 GetRequests, 871 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=215, Invalid=435, Unknown=0, NotChecked=0, Total=650 [2025-01-09 09:43:49,304 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 923 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 09:43:49,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 901 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 09:43:49,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12678 states. [2025-01-09 09:43:50,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12678 to 4438. [2025-01-09 09:43:50,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 3383 states have (on average 1.4649719184156074) internal successors, (4956), 3395 states have internal predecessors, (4956), 986 states have call successors, (986), 68 states have call predecessors, (986), 68 states have return successors, (986), 974 states have call predecessors, (986), 986 states have call successors, (986) [2025-01-09 09:43:50,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 6928 transitions. [2025-01-09 09:43:50,030 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 6928 transitions. Word has length 436 [2025-01-09 09:43:50,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:43:50,030 INFO L471 AbstractCegarLoop]: Abstraction has 4438 states and 6928 transitions. [2025-01-09 09:43:50,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 5 states have call successors, (100), 3 states have call predecessors, (100), 6 states have return successors, (102), 5 states have call predecessors, (102), 5 states have call successors, (102) [2025-01-09 09:43:50,031 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 6928 transitions. [2025-01-09 09:43:50,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2025-01-09 09:43:50,033 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:50,034 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:50,043 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 09:43:50,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:43:50,234 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:50,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:50,235 INFO L85 PathProgramCache]: Analyzing trace with hash -335672263, now seen corresponding path program 1 times [2025-01-09 09:43:50,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:50,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633464580] [2025-01-09 09:43:50,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:50,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:50,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 436 statements into 1 equivalence classes. [2025-01-09 09:43:50,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 436 of 436 statements. [2025-01-09 09:43:50,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:50,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 132 proven. 63 refuted. 0 times theorem prover too weak. 8385 trivial. 0 not checked. [2025-01-09 09:43:50,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:50,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633464580] [2025-01-09 09:43:50,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633464580] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:43:50,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168754115] [2025-01-09 09:43:50,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:50,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:43:50,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:43:50,707 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 09:43:50,715 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 09:43:50,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 436 statements into 1 equivalence classes. [2025-01-09 09:43:50,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 436 of 436 statements. [2025-01-09 09:43:50,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:50,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:50,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 09:43:50,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:43:51,685 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 3849 proven. 63 refuted. 0 times theorem prover too weak. 4668 trivial. 0 not checked. [2025-01-09 09:43:51,685 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:43:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 132 proven. 63 refuted. 0 times theorem prover too weak. 8385 trivial. 0 not checked. [2025-01-09 09:43:52,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168754115] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 09:43:52,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 09:43:52,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 14 [2025-01-09 09:43:52,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562841324] [2025-01-09 09:43:52,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 09:43:52,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 09:43:52,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:43:52,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 09:43:52,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2025-01-09 09:43:52,257 INFO L87 Difference]: Start difference. First operand 4438 states and 6928 transitions. Second operand has 14 states, 14 states have (on average 16.142857142857142) internal successors, (226), 14 states have internal predecessors, (226), 6 states have call successors, (198), 3 states have call predecessors, (198), 6 states have return successors, (198), 6 states have call predecessors, (198), 6 states have call successors, (198) [2025-01-09 09:43:54,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:43:54,087 INFO L93 Difference]: Finished difference Result 15210 states and 23648 transitions. [2025-01-09 09:43:54,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 09:43:54,088 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.142857142857142) internal successors, (226), 14 states have internal predecessors, (226), 6 states have call successors, (198), 3 states have call predecessors, (198), 6 states have return successors, (198), 6 states have call predecessors, (198), 6 states have call successors, (198) Word has length 436 [2025-01-09 09:43:54,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:43:54,119 INFO L225 Difference]: With dead ends: 15210 [2025-01-09 09:43:54,120 INFO L226 Difference]: Without dead ends: 10937 [2025-01-09 09:43:54,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 882 GetRequests, 865 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2025-01-09 09:43:54,130 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 1319 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-09 09:43:54,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 1737 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-09 09:43:54,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10937 states. [2025-01-09 09:43:54,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10937 to 8655. [2025-01-09 09:43:54,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8655 states, 6607 states have (on average 1.4613288935976994) internal successors, (9655), 6631 states have internal predecessors, (9655), 1906 states have call successors, (1906), 141 states have call predecessors, (1906), 141 states have return successors, (1906), 1882 states have call predecessors, (1906), 1906 states have call successors, (1906) [2025-01-09 09:43:54,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8655 states to 8655 states and 13467 transitions. [2025-01-09 09:43:54,950 INFO L78 Accepts]: Start accepts. Automaton has 8655 states and 13467 transitions. Word has length 436 [2025-01-09 09:43:54,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:43:54,950 INFO L471 AbstractCegarLoop]: Abstraction has 8655 states and 13467 transitions. [2025-01-09 09:43:54,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.142857142857142) internal successors, (226), 14 states have internal predecessors, (226), 6 states have call successors, (198), 3 states have call predecessors, (198), 6 states have return successors, (198), 6 states have call predecessors, (198), 6 states have call successors, (198) [2025-01-09 09:43:54,951 INFO L276 IsEmpty]: Start isEmpty. Operand 8655 states and 13467 transitions. [2025-01-09 09:43:54,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2025-01-09 09:43:54,954 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:43:54,954 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:54,966 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 09:43:55,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:43:55,155 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:43:55,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:43:55,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1515746466, now seen corresponding path program 1 times [2025-01-09 09:43:55,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:43:55,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680963973] [2025-01-09 09:43:55,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:55,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:43:55,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 437 statements into 1 equivalence classes. [2025-01-09 09:43:55,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 437 of 437 statements. [2025-01-09 09:43:55,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:55,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 120 proven. 75 refuted. 0 times theorem prover too weak. 8385 trivial. 0 not checked. [2025-01-09 09:43:56,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:43:56,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680963973] [2025-01-09 09:43:56,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680963973] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:43:56,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707577147] [2025-01-09 09:43:56,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:43:56,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:43:56,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:43:56,086 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 09:43:56,091 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 09:43:56,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 437 statements into 1 equivalence classes. [2025-01-09 09:43:56,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 437 of 437 statements. [2025-01-09 09:43:56,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:43:56,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:43:56,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-01-09 09:43:56,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:43:59,631 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 3549 proven. 630 refuted. 0 times theorem prover too weak. 4401 trivial. 0 not checked. [2025-01-09 09:43:59,631 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:44:01,840 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 114 proven. 462 refuted. 0 times theorem prover too weak. 8004 trivial. 0 not checked. [2025-01-09 09:44:01,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707577147] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 09:44:01,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 09:44:01,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 12] total 33 [2025-01-09 09:44:01,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295879452] [2025-01-09 09:44:01,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 09:44:01,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-01-09 09:44:01,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:44:01,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-01-09 09:44:01,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=837, Unknown=0, NotChecked=0, Total=1056 [2025-01-09 09:44:01,843 INFO L87 Difference]: Start difference. First operand 8655 states and 13467 transitions. Second operand has 33 states, 32 states have (on average 10.46875) internal successors, (335), 30 states have internal predecessors, (335), 11 states have call successors, (195), 6 states have call predecessors, (195), 12 states have return successors, (196), 11 states have call predecessors, (196), 11 states have call successors, (196) [2025-01-09 09:44:15,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:44:15,961 INFO L93 Difference]: Finished difference Result 32467 states and 48730 transitions. [2025-01-09 09:44:15,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2025-01-09 09:44:15,962 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 10.46875) internal successors, (335), 30 states have internal predecessors, (335), 11 states have call successors, (195), 6 states have call predecessors, (195), 12 states have return successors, (196), 11 states have call predecessors, (196), 11 states have call successors, (196) Word has length 437 [2025-01-09 09:44:15,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:44:16,035 INFO L225 Difference]: With dead ends: 32467 [2025-01-09 09:44:16,035 INFO L226 Difference]: Without dead ends: 24385 [2025-01-09 09:44:16,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1056 GetRequests, 867 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14186 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=6572, Invalid=29718, Unknown=0, NotChecked=0, Total=36290 [2025-01-09 09:44:16,057 INFO L435 NwaCegarLoop]: 785 mSDtfsCounter, 4624 mSDsluCounter, 4975 mSDsCounter, 0 mSdLazyCounter, 5997 mSolverCounterSat, 2073 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4624 SdHoareTripleChecker+Valid, 5760 SdHoareTripleChecker+Invalid, 8070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2073 IncrementalHoareTripleChecker+Valid, 5997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2025-01-09 09:44:16,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4624 Valid, 5760 Invalid, 8070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2073 Valid, 5997 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2025-01-09 09:44:16,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24385 states. [2025-01-09 09:44:17,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24385 to 8601. [2025-01-09 09:44:17,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8601 states, 6900 states have (on average 1.422463768115942) internal successors, (9815), 6940 states have internal predecessors, (9815), 1474 states have call successors, (1474), 226 states have call predecessors, (1474), 226 states have return successors, (1474), 1434 states have call predecessors, (1474), 1474 states have call successors, (1474) [2025-01-09 09:44:17,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8601 states to 8601 states and 12763 transitions. [2025-01-09 09:44:17,668 INFO L78 Accepts]: Start accepts. Automaton has 8601 states and 12763 transitions. Word has length 437 [2025-01-09 09:44:17,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:44:17,670 INFO L471 AbstractCegarLoop]: Abstraction has 8601 states and 12763 transitions. [2025-01-09 09:44:17,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 10.46875) internal successors, (335), 30 states have internal predecessors, (335), 11 states have call successors, (195), 6 states have call predecessors, (195), 12 states have return successors, (196), 11 states have call predecessors, (196), 11 states have call successors, (196) [2025-01-09 09:44:17,670 INFO L276 IsEmpty]: Start isEmpty. Operand 8601 states and 12763 transitions. [2025-01-09 09:44:17,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2025-01-09 09:44:17,674 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:44:17,674 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:44:17,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 09:44:17,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-09 09:44:17,878 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:44:17,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:44:17,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1183784557, now seen corresponding path program 1 times [2025-01-09 09:44:17,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:44:17,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664021802] [2025-01-09 09:44:17,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:44:17,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:44:17,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 437 statements into 1 equivalence classes. [2025-01-09 09:44:17,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 437 of 437 statements. [2025-01-09 09:44:17,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:44:17,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:44:18,059 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2025-01-09 09:44:18,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:44:18,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664021802] [2025-01-09 09:44:18,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664021802] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:44:18,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:44:18,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 09:44:18,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438168957] [2025-01-09 09:44:18,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:44:18,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 09:44:18,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:44:18,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 09:44:18,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 09:44:18,062 INFO L87 Difference]: Start difference. First operand 8601 states and 12763 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:44:19,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:44:19,384 INFO L93 Difference]: Finished difference Result 18632 states and 27635 transitions. [2025-01-09 09:44:19,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 09:44:19,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 437 [2025-01-09 09:44:19,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:44:19,416 INFO L225 Difference]: With dead ends: 18632 [2025-01-09 09:44:19,416 INFO L226 Difference]: Without dead ends: 10707 [2025-01-09 09:44:19,428 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 09:44:19,428 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 223 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 09:44:19,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 827 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 09:44:19,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10707 states. [2025-01-09 09:44:20,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10707 to 10653. [2025-01-09 09:44:20,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10653 states, 8510 states have (on average 1.4197414806110458) internal successors, (12082), 8558 states have internal predecessors, (12082), 1854 states have call successors, (1854), 288 states have call predecessors, (1854), 288 states have return successors, (1854), 1806 states have call predecessors, (1854), 1854 states have call successors, (1854) [2025-01-09 09:44:20,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10653 states to 10653 states and 15790 transitions. [2025-01-09 09:44:20,776 INFO L78 Accepts]: Start accepts. Automaton has 10653 states and 15790 transitions. Word has length 437 [2025-01-09 09:44:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:44:20,776 INFO L471 AbstractCegarLoop]: Abstraction has 10653 states and 15790 transitions. [2025-01-09 09:44:20,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:44:20,777 INFO L276 IsEmpty]: Start isEmpty. Operand 10653 states and 15790 transitions. [2025-01-09 09:44:20,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2025-01-09 09:44:20,780 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:44:20,780 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:44:20,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 09:44:20,781 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:44:20,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:44:20,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1644361609, now seen corresponding path program 1 times [2025-01-09 09:44:20,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:44:20,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577066488] [2025-01-09 09:44:20,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:44:20,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:44:20,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 438 statements into 1 equivalence classes. [2025-01-09 09:44:20,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 438 of 438 statements. [2025-01-09 09:44:20,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:44:20,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:44:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2025-01-09 09:44:20,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:44:20,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577066488] [2025-01-09 09:44:20,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577066488] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:44:20,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:44:20,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 09:44:20,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444432294] [2025-01-09 09:44:20,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:44:20,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 09:44:20,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:44:20,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 09:44:20,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 09:44:20,988 INFO L87 Difference]: Start difference. First operand 10653 states and 15790 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:44:24,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:44:24,123 INFO L93 Difference]: Finished difference Result 24231 states and 35882 transitions. [2025-01-09 09:44:24,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 09:44:24,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 438 [2025-01-09 09:44:24,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:44:24,197 INFO L225 Difference]: With dead ends: 24231 [2025-01-09 09:44:24,197 INFO L226 Difference]: Without dead ends: 18809 [2025-01-09 09:44:24,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 09:44:24,210 INFO L435 NwaCegarLoop]: 651 mSDtfsCounter, 343 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 09:44:24,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1620 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 09:44:24,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18809 states. [2025-01-09 09:44:25,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18809 to 11333. [2025-01-09 09:44:25,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11333 states, 9190 states have (on average 1.3995647442872687) internal successors, (12862), 9238 states have internal predecessors, (12862), 1854 states have call successors, (1854), 288 states have call predecessors, (1854), 288 states have return successors, (1854), 1806 states have call predecessors, (1854), 1854 states have call successors, (1854) [2025-01-09 09:44:25,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11333 states to 11333 states and 16570 transitions. [2025-01-09 09:44:25,740 INFO L78 Accepts]: Start accepts. Automaton has 11333 states and 16570 transitions. Word has length 438 [2025-01-09 09:44:25,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:44:25,741 INFO L471 AbstractCegarLoop]: Abstraction has 11333 states and 16570 transitions. [2025-01-09 09:44:25,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2025-01-09 09:44:25,741 INFO L276 IsEmpty]: Start isEmpty. Operand 11333 states and 16570 transitions. [2025-01-09 09:44:25,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2025-01-09 09:44:25,744 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:44:25,744 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:44:25,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 09:44:25,744 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:44:25,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:44:25,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1808767239, now seen corresponding path program 1 times [2025-01-09 09:44:25,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:44:25,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930792019] [2025-01-09 09:44:25,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:44:25,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:44:25,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 439 statements into 1 equivalence classes. [2025-01-09 09:44:25,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 439 of 439 statements. [2025-01-09 09:44:25,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:44:25,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:44:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 6 proven. 189 refuted. 0 times theorem prover too weak. 8385 trivial. 0 not checked. [2025-01-09 09:44:26,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:44:26,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930792019] [2025-01-09 09:44:26,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930792019] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:44:26,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791375212] [2025-01-09 09:44:26,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:44:26,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:44:26,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:44:26,239 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 09:44:26,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 09:44:26,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 439 statements into 1 equivalence classes. [2025-01-09 09:44:26,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 439 of 439 statements. [2025-01-09 09:44:26,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:44:26,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:44:26,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-09 09:44:26,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:44:28,394 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 638 proven. 372 refuted. 0 times theorem prover too weak. 7570 trivial. 0 not checked. [2025-01-09 09:44:28,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:44:28,993 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 6 proven. 189 refuted. 0 times theorem prover too weak. 8385 trivial. 0 not checked. [2025-01-09 09:44:28,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791375212] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 09:44:28,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 09:44:28,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 6] total 19 [2025-01-09 09:44:28,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806580657] [2025-01-09 09:44:28,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 09:44:28,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-09 09:44:28,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:44:28,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-09 09:44:28,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2025-01-09 09:44:28,997 INFO L87 Difference]: Start difference. First operand 11333 states and 16570 transitions. Second operand has 19 states, 19 states have (on average 16.42105263157895) internal successors, (312), 18 states have internal predecessors, (312), 7 states have call successors, (198), 4 states have call predecessors, (198), 7 states have return successors, (198), 7 states have call predecessors, (198), 7 states have call successors, (198) [2025-01-09 09:44:31,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:44:31,277 INFO L93 Difference]: Finished difference Result 21723 states and 31624 transitions. [2025-01-09 09:44:31,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-09 09:44:31,278 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 16.42105263157895) internal successors, (312), 18 states have internal predecessors, (312), 7 states have call successors, (198), 4 states have call predecessors, (198), 7 states have return successors, (198), 7 states have call predecessors, (198), 7 states have call successors, (198) Word has length 439 [2025-01-09 09:44:31,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:44:31,329 INFO L225 Difference]: With dead ends: 21723 [2025-01-09 09:44:31,330 INFO L226 Difference]: Without dead ends: 11093 [2025-01-09 09:44:31,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 867 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=521, Unknown=0, NotChecked=0, Total=702 [2025-01-09 09:44:31,357 INFO L435 NwaCegarLoop]: 295 mSDtfsCounter, 752 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 09:44:31,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 2353 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 09:44:31,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11093 states. [2025-01-09 09:44:32,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11093 to 10739. [2025-01-09 09:44:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10739 states, 8596 states have (on average 1.3973941368078175) internal successors, (12012), 8644 states have internal predecessors, (12012), 1854 states have call successors, (1854), 288 states have call predecessors, (1854), 288 states have return successors, (1854), 1806 states have call predecessors, (1854), 1854 states have call successors, (1854) [2025-01-09 09:44:32,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10739 states to 10739 states and 15720 transitions. [2025-01-09 09:44:33,005 INFO L78 Accepts]: Start accepts. Automaton has 10739 states and 15720 transitions. Word has length 439 [2025-01-09 09:44:33,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:44:33,007 INFO L471 AbstractCegarLoop]: Abstraction has 10739 states and 15720 transitions. [2025-01-09 09:44:33,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 16.42105263157895) internal successors, (312), 18 states have internal predecessors, (312), 7 states have call successors, (198), 4 states have call predecessors, (198), 7 states have return successors, (198), 7 states have call predecessors, (198), 7 states have call successors, (198) [2025-01-09 09:44:33,008 INFO L276 IsEmpty]: Start isEmpty. Operand 10739 states and 15720 transitions. [2025-01-09 09:44:33,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2025-01-09 09:44:33,011 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:44:33,011 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:44:33,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 09:44:33,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-01-09 09:44:33,212 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:44:33,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:44:33,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1075015579, now seen corresponding path program 1 times [2025-01-09 09:44:33,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:44:33,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985920403] [2025-01-09 09:44:33,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:44:33,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:44:33,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 440 statements into 1 equivalence classes. [2025-01-09 09:44:33,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 440 of 440 statements. [2025-01-09 09:44:33,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:44:33,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:44:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 666 proven. 249 refuted. 0 times theorem prover too weak. 7665 trivial. 0 not checked. [2025-01-09 09:44:41,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:44:41,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985920403] [2025-01-09 09:44:41,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985920403] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:44:41,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976875676] [2025-01-09 09:44:41,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:44:41,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:44:41,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:44:41,493 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 09:44:41,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 09:44:41,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 440 statements into 1 equivalence classes.