./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-9.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-9.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 e6ca059adc2ec28b7106763e3d6b1b450d19a4eff5f7716b68bbd37f426e2990 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 09:48:40,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 09:48:40,562 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 09:48:40,567 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 09:48:40,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 09:48:40,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 09:48:40,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 09:48:40,593 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 09:48:40,593 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 09:48:40,594 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 09:48:40,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 09:48:40,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 09:48:40,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 09:48:40,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 09:48:40,595 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 09:48:40,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 09:48:40,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 09:48:40,595 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 09:48:40,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 09:48:40,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 09:48:40,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 09:48:40,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 09:48:40,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 09:48:40,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 09:48:40,596 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 09:48:40,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 09:48:40,596 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 09:48:40,596 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 09:48:40,596 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 09:48:40,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 09:48:40,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 09:48:40,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 09:48:40,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 09:48:40,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 09:48:40,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 09:48:40,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 09:48:40,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 09:48:40,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 09:48:40,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 09:48:40,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 09:48:40,598 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 09:48:40,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 09:48:40,598 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 09:48:40,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 09:48:40,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 09:48:40,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 09:48:40,598 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 09:48:40,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 09:48:40,598 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 -> e6ca059adc2ec28b7106763e3d6b1b450d19a4eff5f7716b68bbd37f426e2990 [2025-01-09 09:48:40,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 09:48:40,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 09:48:40,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 09:48:40,798 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 09:48:40,798 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 09:48:40,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-9.i [2025-01-09 09:48:41,979 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/48c250c22/9e5b752eaeaf49ceb0e5c4b4c8e50593/FLAGc8c0f8249 [2025-01-09 09:48:42,265 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 09:48:42,265 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-9.i [2025-01-09 09:48:42,274 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/48c250c22/9e5b752eaeaf49ceb0e5c4b4c8e50593/FLAGc8c0f8249 [2025-01-09 09:48:42,551 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/48c250c22/9e5b752eaeaf49ceb0e5c4b4c8e50593 [2025-01-09 09:48:42,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 09:48:42,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 09:48:42,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 09:48:42,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 09:48:42,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 09:48:42,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62d21120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42, skipping insertion in model container [2025-01-09 09:48:42,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 09:48:42,679 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-9.i[915,928] [2025-01-09 09:48:42,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 09:48:42,774 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 09:48:42,783 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-9.i[915,928] [2025-01-09 09:48:42,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 09:48:42,847 INFO L204 MainTranslator]: Completed translation [2025-01-09 09:48:42,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42 WrapperNode [2025-01-09 09:48:42,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 09:48:42,849 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 09:48:42,849 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 09:48:42,849 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 09:48:42,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,911 INFO L138 Inliner]: procedures = 26, calls = 90, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 547 [2025-01-09 09:48:42,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 09:48:42,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 09:48:42,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 09:48:42,913 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 09:48:42,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,937 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,966 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 09:48:42,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,967 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,980 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,995 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:42,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:43,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 09:48:43,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 09:48:43,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 09:48:43,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 09:48:43,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (1/1) ... [2025-01-09 09:48:43,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 09:48:43,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:48:43,031 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 09:48:43,033 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 09:48:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 09:48:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 09:48:43,055 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 09:48:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 09:48:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 09:48:43,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 09:48:43,134 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 09:48:43,136 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 09:48:43,777 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2025-01-09 09:48:43,777 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 09:48:43,793 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 09:48:43,793 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 09:48:43,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:48:43 BoogieIcfgContainer [2025-01-09 09:48:43,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 09:48:43,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 09:48:43,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 09:48:43,802 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 09:48:43,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:48:42" (1/3) ... [2025-01-09 09:48:43,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108e4915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:48:43, skipping insertion in model container [2025-01-09 09:48:43,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:48:42" (2/3) ... [2025-01-09 09:48:43,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108e4915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:48:43, skipping insertion in model container [2025-01-09 09:48:43,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:48:43" (3/3) ... [2025-01-09 09:48:43,808 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-9.i [2025-01-09 09:48:43,824 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 09:48:43,827 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-9.i that has 2 procedures, 235 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 09:48:43,908 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 09:48:43,916 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;@2ea76f98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 09:48:43,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 09:48:43,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 235 states, 155 states have (on average 1.5161290322580645) internal successors, (235), 156 states have internal predecessors, (235), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2025-01-09 09:48:43,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2025-01-09 09:48:43,944 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:48:43,946 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:48:43,946 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:48:43,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:48:43,951 INFO L85 PathProgramCache]: Analyzing trace with hash -695615202, now seen corresponding path program 1 times [2025-01-09 09:48:43,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:48:43,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108652961] [2025-01-09 09:48:43,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:48:43,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:48:44,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 484 statements into 1 equivalence classes. [2025-01-09 09:48:44,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 484 of 484 statements. [2025-01-09 09:48:44,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:48:44,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:48:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 11552 trivial. 0 not checked. [2025-01-09 09:48:44,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:48:44,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108652961] [2025-01-09 09:48:44,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108652961] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:48:44,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348908624] [2025-01-09 09:48:44,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:48:44,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:48:44,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:48:44,488 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 09:48:44,489 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 09:48:44,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 484 statements into 1 equivalence classes. [2025-01-09 09:48:44,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 484 of 484 statements. [2025-01-09 09:48:44,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:48:44,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:48:44,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 09:48:44,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:48:44,834 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 11552 trivial. 0 not checked. [2025-01-09 09:48:44,834 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 09:48:44,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348908624] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:48:44,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 09:48:44,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 09:48:44,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007368528] [2025-01-09 09:48:44,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:48:44,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 09:48:44,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:48:44,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 09:48:44,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 09:48:44,856 INFO L87 Difference]: Start difference. First operand has 235 states, 155 states have (on average 1.5161290322580645) internal successors, (235), 156 states have internal predecessors, (235), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) Second operand has 2 states, 2 states have (on average 52.0) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 2 states have call successors, (77) [2025-01-09 09:48:44,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:48:44,888 INFO L93 Difference]: Finished difference Result 464 states and 850 transitions. [2025-01-09 09:48:44,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 09:48:44,889 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 52.0) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 2 states have call successors, (77) Word has length 484 [2025-01-09 09:48:44,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:48:44,894 INFO L225 Difference]: With dead ends: 464 [2025-01-09 09:48:44,894 INFO L226 Difference]: Without dead ends: 232 [2025-01-09 09:48:44,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 485 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 09:48:44,898 INFO L435 NwaCegarLoop]: 382 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, 382 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 09:48:44,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 09:48:44,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2025-01-09 09:48:44,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2025-01-09 09:48:44,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 153 states have (on average 1.4901960784313726) internal successors, (228), 153 states have internal predecessors, (228), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2025-01-09 09:48:44,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 382 transitions. [2025-01-09 09:48:44,955 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 382 transitions. Word has length 484 [2025-01-09 09:48:44,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:48:44,955 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 382 transitions. [2025-01-09 09:48:44,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.0) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 2 states have call successors, (77) [2025-01-09 09:48:44,955 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 382 transitions. [2025-01-09 09:48:44,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2025-01-09 09:48:44,965 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:48:44,969 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:48:44,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 09:48:45,170 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 09:48:45,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:48:45,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:48:45,172 INFO L85 PathProgramCache]: Analyzing trace with hash -208611170, now seen corresponding path program 1 times [2025-01-09 09:48:45,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:48:45,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889975424] [2025-01-09 09:48:45,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:48:45,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:48:45,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 484 statements into 1 equivalence classes. [2025-01-09 09:48:45,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 484 of 484 statements. [2025-01-09 09:48:45,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:48:45,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:48:45,619 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:48:45,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:48:45,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889975424] [2025-01-09 09:48:45,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889975424] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:48:45,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:48:45,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 09:48:45,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647516312] [2025-01-09 09:48:45,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:48:45,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 09:48:45,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:48:45,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 09:48:45,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 09:48:45,624 INFO L87 Difference]: Start difference. First operand 232 states and 382 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, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:48:45,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:48:45,678 INFO L93 Difference]: Finished difference Result 462 states and 763 transitions. [2025-01-09 09:48:45,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 09:48:45,681 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, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 484 [2025-01-09 09:48:45,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:48:45,684 INFO L225 Difference]: With dead ends: 462 [2025-01-09 09:48:45,684 INFO L226 Difference]: Without dead ends: 233 [2025-01-09 09:48:45,685 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 09:48:45,690 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 0 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 09:48:45,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 757 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 09:48:45,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-01-09 09:48:45,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2025-01-09 09:48:45,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 154 states have (on average 1.4870129870129871) internal successors, (229), 154 states have internal predecessors, (229), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2025-01-09 09:48:45,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 383 transitions. [2025-01-09 09:48:45,720 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 383 transitions. Word has length 484 [2025-01-09 09:48:45,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:48:45,722 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 383 transitions. [2025-01-09 09:48:45,722 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, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:48:45,722 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 383 transitions. [2025-01-09 09:48:45,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2025-01-09 09:48:45,728 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:48:45,728 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:48:45,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 09:48:45,729 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:48:45,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:48:45,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2109114000, now seen corresponding path program 1 times [2025-01-09 09:48:45,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:48:45,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417133894] [2025-01-09 09:48:45,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:48:45,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:48:45,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 485 statements into 1 equivalence classes. [2025-01-09 09:48:45,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 485 of 485 statements. [2025-01-09 09:48:45,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:48:45,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:48:46,432 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:48:46,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:48:46,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417133894] [2025-01-09 09:48:46,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417133894] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:48:46,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:48:46,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 09:48:46,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084379558] [2025-01-09 09:48:46,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:48:46,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 09:48:46,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:48:46,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 09:48:46,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 09:48:46,438 INFO L87 Difference]: Start difference. First operand 233 states and 383 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, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:48:46,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:48:46,486 INFO L93 Difference]: Finished difference Result 693 states and 1143 transitions. [2025-01-09 09:48:46,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 09:48:46,486 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, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 485 [2025-01-09 09:48:46,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:48:46,495 INFO L225 Difference]: With dead ends: 693 [2025-01-09 09:48:46,495 INFO L226 Difference]: Without dead ends: 463 [2025-01-09 09:48:46,496 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 09:48:46,496 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 240 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 09:48:46,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 757 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 09:48:46,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2025-01-09 09:48:46,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 461. [2025-01-09 09:48:46,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 304 states have (on average 1.4901315789473684) internal successors, (453), 304 states have internal predecessors, (453), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2025-01-09 09:48:46,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 761 transitions. [2025-01-09 09:48:46,557 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 761 transitions. Word has length 485 [2025-01-09 09:48:46,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:48:46,558 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 761 transitions. [2025-01-09 09:48:46,558 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, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:48:46,558 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 761 transitions. [2025-01-09 09:48:46,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2025-01-09 09:48:46,563 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:48:46,563 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:48:46,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 09:48:46,563 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:48:46,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:48:46,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1449582478, now seen corresponding path program 1 times [2025-01-09 09:48:46,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:48:46,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283110114] [2025-01-09 09:48:46,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:48:46,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:48:46,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 485 statements into 1 equivalence classes. [2025-01-09 09:48:46,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 485 of 485 statements. [2025-01-09 09:48:46,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:48:46,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:48:48,179 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:48:48,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:48:48,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283110114] [2025-01-09 09:48:48,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283110114] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:48:48,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:48:48,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 09:48:48,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868358171] [2025-01-09 09:48:48,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:48:48,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 09:48:48,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:48:48,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 09:48:48,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-09 09:48:48,185 INFO L87 Difference]: Start difference. First operand 461 states and 761 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2025-01-09 09:48:50,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:48:50,383 INFO L93 Difference]: Finished difference Result 3373 states and 5573 transitions. [2025-01-09 09:48:50,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 09:48:50,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 485 [2025-01-09 09:48:50,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:48:50,399 INFO L225 Difference]: With dead ends: 3373 [2025-01-09 09:48:50,400 INFO L226 Difference]: Without dead ends: 2915 [2025-01-09 09:48:50,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2025-01-09 09:48:50,403 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 2875 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 761 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2875 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 761 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-01-09 09:48:50,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2875 Valid, 2933 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [761 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-01-09 09:48:50,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2025-01-09 09:48:50,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 2117. [2025-01-09 09:48:50,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1440 states have (on average 1.5131944444444445) internal successors, (2179), 1442 states have internal predecessors, (2179), 666 states have call successors, (666), 10 states have call predecessors, (666), 10 states have return successors, (666), 664 states have call predecessors, (666), 666 states have call successors, (666) [2025-01-09 09:48:50,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3511 transitions. [2025-01-09 09:48:50,733 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3511 transitions. Word has length 485 [2025-01-09 09:48:50,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:48:50,734 INFO L471 AbstractCegarLoop]: Abstraction has 2117 states and 3511 transitions. [2025-01-09 09:48:50,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 2 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2025-01-09 09:48:50,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3511 transitions. [2025-01-09 09:48:50,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2025-01-09 09:48:50,747 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:48:50,747 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:48:50,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 09:48:50,748 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:48:50,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:48:50,748 INFO L85 PathProgramCache]: Analyzing trace with hash 288280534, now seen corresponding path program 1 times [2025-01-09 09:48:50,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:48:50,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848744619] [2025-01-09 09:48:50,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:48:50,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:48:50,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:48:51,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:48:51,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:48:51,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:48:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 33 proven. 195 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-01-09 09:48:54,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:48:54,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848744619] [2025-01-09 09:48:54,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848744619] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:48:54,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530472673] [2025-01-09 09:48:54,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:48:54,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:48:54,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:48:54,332 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 09:48:54,334 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 09:48:54,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:48:54,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:48:54,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:48:54,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:48:54,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 09:48:54,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:48:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 1228 proven. 228 refuted. 0 times theorem prover too weak. 10248 trivial. 0 not checked. [2025-01-09 09:48:55,537 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:48:56,096 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-01-09 09:48:56,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530472673] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 09:48:56,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 09:48:56,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 6, 6] total 21 [2025-01-09 09:48:56,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768041765] [2025-01-09 09:48:56,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 09:48:56,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-09 09:48:56,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:48:56,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-09 09:48:56,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2025-01-09 09:48:56,109 INFO L87 Difference]: Start difference. First operand 2117 states and 3511 transitions. Second operand has 21 states, 21 states have (on average 14.0) internal successors, (294), 21 states have internal predecessors, (294), 7 states have call successors, (230), 3 states have call predecessors, (230), 5 states have return successors, (231), 6 states have call predecessors, (231), 7 states have call successors, (231) [2025-01-09 09:48:59,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:48:59,474 INFO L93 Difference]: Finished difference Result 8033 states and 12861 transitions. [2025-01-09 09:48:59,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-09 09:48:59,477 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 14.0) internal successors, (294), 21 states have internal predecessors, (294), 7 states have call successors, (230), 3 states have call predecessors, (230), 5 states have return successors, (231), 6 states have call predecessors, (231), 7 states have call successors, (231) Word has length 486 [2025-01-09 09:48:59,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:48:59,511 INFO L225 Difference]: With dead ends: 8033 [2025-01-09 09:48:59,511 INFO L226 Difference]: Without dead ends: 5919 [2025-01-09 09:48:59,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1015 GetRequests, 972 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=391, Invalid=1589, Unknown=0, NotChecked=0, Total=1980 [2025-01-09 09:48:59,521 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 1674 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 2053 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 2621 SdHoareTripleChecker+Invalid, 2463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 2053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-09 09:48:59,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 2621 Invalid, 2463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 2053 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-09 09:48:59,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5919 states. [2025-01-09 09:48:59,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5919 to 4429. [2025-01-09 09:48:59,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4429 states, 3026 states have (on average 1.4818241903502973) internal successors, (4484), 3030 states have internal predecessors, (4484), 1332 states have call successors, (1332), 70 states have call predecessors, (1332), 70 states have return successors, (1332), 1328 states have call predecessors, (1332), 1332 states have call successors, (1332) [2025-01-09 09:48:59,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4429 states to 4429 states and 7148 transitions. [2025-01-09 09:48:59,938 INFO L78 Accepts]: Start accepts. Automaton has 4429 states and 7148 transitions. Word has length 486 [2025-01-09 09:48:59,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:48:59,939 INFO L471 AbstractCegarLoop]: Abstraction has 4429 states and 7148 transitions. [2025-01-09 09:48:59,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.0) internal successors, (294), 21 states have internal predecessors, (294), 7 states have call successors, (230), 3 states have call predecessors, (230), 5 states have return successors, (231), 6 states have call predecessors, (231), 7 states have call successors, (231) [2025-01-09 09:48:59,939 INFO L276 IsEmpty]: Start isEmpty. Operand 4429 states and 7148 transitions. [2025-01-09 09:48:59,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2025-01-09 09:48:59,945 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:48:59,945 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:48:59,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 09:49:00,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:00,149 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:00,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:00,150 INFO L85 PathProgramCache]: Analyzing trace with hash -732787820, now seen corresponding path program 1 times [2025-01-09 09:49:00,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:00,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269523385] [2025-01-09 09:49:00,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:00,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:00,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:00,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:00,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:00,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 33 proven. 195 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-01-09 09:49:02,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:02,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269523385] [2025-01-09 09:49:02,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269523385] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:49:02,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810621571] [2025-01-09 09:49:02,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:02,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:02,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:49:02,313 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 09:49:02,318 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 09:49:02,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:02,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:02,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:02,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:02,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 09:49:02,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:49:02,914 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 5688 proven. 90 refuted. 0 times theorem prover too weak. 5926 trivial. 0 not checked. [2025-01-09 09:49:02,915 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:49:03,511 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 138 proven. 90 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-01-09 09:49:03,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810621571] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 09:49:03,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 09:49:03,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2025-01-09 09:49:03,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510045953] [2025-01-09 09:49:03,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 09:49:03,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-09 09:49:03,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:03,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-09 09:49:03,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2025-01-09 09:49:03,514 INFO L87 Difference]: Start difference. First operand 4429 states and 7148 transitions. Second operand has 15 states, 15 states have (on average 12.4) internal successors, (186), 15 states have internal predecessors, (186), 2 states have call successors, (137), 2 states have call predecessors, (137), 4 states have return successors, (140), 2 states have call predecessors, (140), 2 states have call successors, (140) [2025-01-09 09:49:08,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:08,117 INFO L93 Difference]: Finished difference Result 14933 states and 23711 transitions. [2025-01-09 09:49:08,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-01-09 09:49:08,118 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.4) internal successors, (186), 15 states have internal predecessors, (186), 2 states have call successors, (137), 2 states have call predecessors, (137), 4 states have return successors, (140), 2 states have call predecessors, (140), 2 states have call successors, (140) Word has length 486 [2025-01-09 09:49:08,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:08,167 INFO L225 Difference]: With dead ends: 14933 [2025-01-09 09:49:08,167 INFO L226 Difference]: Without dead ends: 10507 [2025-01-09 09:49:08,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1016 GetRequests, 972 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=387, Invalid=1593, Unknown=0, NotChecked=0, Total=1980 [2025-01-09 09:49:08,184 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 1823 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:08,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1871 Valid, 2130 Invalid, 1989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-09 09:49:08,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10507 states. [2025-01-09 09:49:08,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10507 to 5033. [2025-01-09 09:49:08,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5033 states, 3614 states have (on average 1.4875484228002214) internal successors, (5376), 3618 states have internal predecessors, (5376), 1332 states have call successors, (1332), 86 states have call predecessors, (1332), 86 states have return successors, (1332), 1328 states have call predecessors, (1332), 1332 states have call successors, (1332) [2025-01-09 09:49:08,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5033 states to 5033 states and 8040 transitions. [2025-01-09 09:49:08,705 INFO L78 Accepts]: Start accepts. Automaton has 5033 states and 8040 transitions. Word has length 486 [2025-01-09 09:49:08,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:08,706 INFO L471 AbstractCegarLoop]: Abstraction has 5033 states and 8040 transitions. [2025-01-09 09:49:08,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.4) internal successors, (186), 15 states have internal predecessors, (186), 2 states have call successors, (137), 2 states have call predecessors, (137), 4 states have return successors, (140), 2 states have call predecessors, (140), 2 states have call successors, (140) [2025-01-09 09:49:08,706 INFO L276 IsEmpty]: Start isEmpty. Operand 5033 states and 8040 transitions. [2025-01-09 09:49:08,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2025-01-09 09:49:08,710 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:08,710 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:08,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 09:49:08,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:08,911 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:08,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:08,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1800849176, now seen corresponding path program 1 times [2025-01-09 09:49:08,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:08,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181886080] [2025-01-09 09:49:08,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:08,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:08,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:09,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:09,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:09,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:11,416 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 33 proven. 195 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-01-09 09:49:11,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:11,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181886080] [2025-01-09 09:49:11,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181886080] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:49:11,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598920509] [2025-01-09 09:49:11,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:11,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:11,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:49:11,419 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 09:49:11,420 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 09:49:11,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:11,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:11,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:11,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:11,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 09:49:11,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:49:11,931 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:49:11,932 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 09:49:11,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598920509] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:49:11,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 09:49:11,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2025-01-09 09:49:11,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548917918] [2025-01-09 09:49:11,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:49:11,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 09:49:11,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:11,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 09:49:11,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2025-01-09 09:49:11,937 INFO L87 Difference]: Start difference. First operand 5033 states and 8040 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:12,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:12,568 INFO L93 Difference]: Finished difference Result 8625 states and 13582 transitions. [2025-01-09 09:49:12,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 09:49:12,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 486 [2025-01-09 09:49:12,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:12,695 INFO L225 Difference]: With dead ends: 8625 [2025-01-09 09:49:12,697 INFO L226 Difference]: Without dead ends: 5999 [2025-01-09 09:49:12,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2025-01-09 09:49:12,704 INFO L435 NwaCegarLoop]: 404 mSDtfsCounter, 151 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:12,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 2283 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 09:49:12,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2025-01-09 09:49:13,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 5313. [2025-01-09 09:49:13,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5313 states, 3894 states have (on average 1.4858757062146892) internal successors, (5786), 3898 states have internal predecessors, (5786), 1332 states have call successors, (1332), 86 states have call predecessors, (1332), 86 states have return successors, (1332), 1328 states have call predecessors, (1332), 1332 states have call successors, (1332) [2025-01-09 09:49:13,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5313 states to 5313 states and 8450 transitions. [2025-01-09 09:49:13,232 INFO L78 Accepts]: Start accepts. Automaton has 5313 states and 8450 transitions. Word has length 486 [2025-01-09 09:49:13,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:13,232 INFO L471 AbstractCegarLoop]: Abstraction has 5313 states and 8450 transitions. [2025-01-09 09:49:13,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:13,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5313 states and 8450 transitions. [2025-01-09 09:49:13,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2025-01-09 09:49:13,237 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:13,237 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:13,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 09:49:13,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-01-09 09:49:13,438 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:13,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:13,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1451797743, now seen corresponding path program 1 times [2025-01-09 09:49:13,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:13,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306720250] [2025-01-09 09:49:13,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:13,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:13,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:13,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:13,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:13,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 33 proven. 195 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-01-09 09:49:15,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:15,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306720250] [2025-01-09 09:49:15,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306720250] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:49:15,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761349897] [2025-01-09 09:49:15,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:15,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:15,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:49:15,352 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 09:49:15,354 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 09:49:15,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:15,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:15,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:15,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:15,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 09:49:15,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:49:15,685 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:49:15,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 09:49:15,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761349897] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:49:15,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 09:49:15,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 13 [2025-01-09 09:49:15,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681923472] [2025-01-09 09:49:15,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:49:15,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 09:49:15,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:15,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 09:49:15,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-01-09 09:49:15,687 INFO L87 Difference]: Start difference. First operand 5313 states and 8450 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:16,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:16,114 INFO L93 Difference]: Finished difference Result 8863 states and 13931 transitions. [2025-01-09 09:49:16,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 09:49:16,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 486 [2025-01-09 09:49:16,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:16,131 INFO L225 Difference]: With dead ends: 8863 [2025-01-09 09:49:16,131 INFO L226 Difference]: Without dead ends: 5957 [2025-01-09 09:49:16,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 485 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2025-01-09 09:49:16,138 INFO L435 NwaCegarLoop]: 411 mSDtfsCounter, 107 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:16,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1944 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 09:49:16,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2025-01-09 09:49:16,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 5313. [2025-01-09 09:49:16,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5313 states, 3894 states have (on average 1.4858757062146892) internal successors, (5786), 3898 states have internal predecessors, (5786), 1332 states have call successors, (1332), 86 states have call predecessors, (1332), 86 states have return successors, (1332), 1328 states have call predecessors, (1332), 1332 states have call successors, (1332) [2025-01-09 09:49:16,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5313 states to 5313 states and 8450 transitions. [2025-01-09 09:49:16,494 INFO L78 Accepts]: Start accepts. Automaton has 5313 states and 8450 transitions. Word has length 486 [2025-01-09 09:49:16,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:16,494 INFO L471 AbstractCegarLoop]: Abstraction has 5313 states and 8450 transitions. [2025-01-09 09:49:16,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:16,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5313 states and 8450 transitions. [2025-01-09 09:49:16,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2025-01-09 09:49:16,498 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:16,498 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:16,508 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 09:49:16,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:16,700 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:16,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:16,700 INFO L85 PathProgramCache]: Analyzing trace with hash -382472552, now seen corresponding path program 1 times [2025-01-09 09:49:16,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:16,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796442927] [2025-01-09 09:49:16,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:16,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:16,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:16,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:16,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:16,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 33 proven. 195 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-01-09 09:49:18,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:18,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796442927] [2025-01-09 09:49:18,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796442927] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:49:18,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746209852] [2025-01-09 09:49:18,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:18,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:18,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:49:18,114 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 09:49:18,116 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 09:49:18,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:18,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:18,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:18,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:18,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-09 09:49:18,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:49:20,449 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 3172 proven. 192 refuted. 0 times theorem prover too weak. 8340 trivial. 0 not checked. [2025-01-09 09:49:20,450 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:49:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:49:21,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746209852] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 09:49:21,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 09:49:21,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 12] total 27 [2025-01-09 09:49:21,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762678676] [2025-01-09 09:49:21,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:49:21,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 09:49:21,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:21,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 09:49:21,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=549, Unknown=0, NotChecked=0, Total=702 [2025-01-09 09:49:21,866 INFO L87 Difference]: Start difference. First operand 5313 states and 8450 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:23,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:23,152 INFO L93 Difference]: Finished difference Result 12638 states and 19880 transitions. [2025-01-09 09:49:23,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 09:49:23,152 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 486 [2025-01-09 09:49:23,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:23,176 INFO L225 Difference]: With dead ends: 12638 [2025-01-09 09:49:23,176 INFO L226 Difference]: Without dead ends: 7328 [2025-01-09 09:49:23,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 990 GetRequests, 961 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=201, Invalid=729, Unknown=0, NotChecked=0, Total=930 [2025-01-09 09:49:23,189 INFO L435 NwaCegarLoop]: 361 mSDtfsCounter, 335 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:23,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 1775 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 09:49:23,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7328 states. [2025-01-09 09:49:23,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7328 to 5543. [2025-01-09 09:49:23,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5543 states, 4124 states have (on average 1.4878758486905916) internal successors, (6136), 4128 states have internal predecessors, (6136), 1332 states have call successors, (1332), 86 states have call predecessors, (1332), 86 states have return successors, (1332), 1328 states have call predecessors, (1332), 1332 states have call successors, (1332) [2025-01-09 09:49:23,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5543 states to 5543 states and 8800 transitions. [2025-01-09 09:49:23,525 INFO L78 Accepts]: Start accepts. Automaton has 5543 states and 8800 transitions. Word has length 486 [2025-01-09 09:49:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:23,525 INFO L471 AbstractCegarLoop]: Abstraction has 5543 states and 8800 transitions. [2025-01-09 09:49:23,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5543 states and 8800 transitions. [2025-01-09 09:49:23,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2025-01-09 09:49:23,529 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:23,530 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:23,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-09 09:49:23,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-01-09 09:49:23,734 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:23,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:23,735 INFO L85 PathProgramCache]: Analyzing trace with hash -731523985, now seen corresponding path program 1 times [2025-01-09 09:49:23,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:23,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454887924] [2025-01-09 09:49:23,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:23,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:23,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:23,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:23,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:23,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 33 proven. 195 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-01-09 09:49:24,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:24,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454887924] [2025-01-09 09:49:24,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454887924] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:49:24,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211972678] [2025-01-09 09:49:24,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:24,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:24,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:49:24,802 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 09:49:24,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-09 09:49:24,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:25,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:25,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:25,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:25,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-09 09:49:25,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:49:25,948 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 3172 proven. 192 refuted. 0 times theorem prover too weak. 8340 trivial. 0 not checked. [2025-01-09 09:49:25,948 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:49:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:49:26,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211972678] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 09:49:26,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 09:49:26,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 11] total 21 [2025-01-09 09:49:26,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448426233] [2025-01-09 09:49:26,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:49:26,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 09:49:26,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:26,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 09:49:26,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2025-01-09 09:49:26,739 INFO L87 Difference]: Start difference. First operand 5543 states and 8800 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:28,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:28,061 INFO L93 Difference]: Finished difference Result 13052 states and 20442 transitions. [2025-01-09 09:49:28,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 09:49:28,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 486 [2025-01-09 09:49:28,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:28,082 INFO L225 Difference]: With dead ends: 13052 [2025-01-09 09:49:28,082 INFO L226 Difference]: Without dead ends: 7512 [2025-01-09 09:49:28,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 987 GetRequests, 963 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2025-01-09 09:49:28,094 INFO L435 NwaCegarLoop]: 415 mSDtfsCounter, 237 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:28,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1993 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-09 09:49:28,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7512 states. [2025-01-09 09:49:28,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7512 to 5553. [2025-01-09 09:49:28,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5553 states, 4134 states have (on average 1.486695694242864) internal successors, (6146), 4138 states have internal predecessors, (6146), 1332 states have call successors, (1332), 86 states have call predecessors, (1332), 86 states have return successors, (1332), 1328 states have call predecessors, (1332), 1332 states have call successors, (1332) [2025-01-09 09:49:28,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5553 states to 5553 states and 8810 transitions. [2025-01-09 09:49:28,489 INFO L78 Accepts]: Start accepts. Automaton has 5553 states and 8810 transitions. Word has length 486 [2025-01-09 09:49:28,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:28,490 INFO L471 AbstractCegarLoop]: Abstraction has 5553 states and 8810 transitions. [2025-01-09 09:49:28,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:28,490 INFO L276 IsEmpty]: Start isEmpty. Operand 5553 states and 8810 transitions. [2025-01-09 09:49:28,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2025-01-09 09:49:28,493 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:28,494 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:28,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-09 09:49:28,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:28,695 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:28,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:28,695 INFO L85 PathProgramCache]: Analyzing trace with hash -2071416294, now seen corresponding path program 1 times [2025-01-09 09:49:28,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:28,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941059644] [2025-01-09 09:49:28,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:28,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:28,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:28,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:28,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:28,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 33 proven. 195 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-01-09 09:49:30,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:30,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941059644] [2025-01-09 09:49:30,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941059644] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:49:30,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719901036] [2025-01-09 09:49:30,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:30,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:30,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:49:30,113 INFO L229 MonitoredProcess]: Starting monitored process 9 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 09:49:30,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-09 09:49:30,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:30,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:30,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:30,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:30,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-01-09 09:49:30,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:49:32,656 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 1701 proven. 846 refuted. 0 times theorem prover too weak. 9157 trivial. 0 not checked. [2025-01-09 09:49:32,656 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:49:33,952 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:49:33,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719901036] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 09:49:33,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 09:49:33,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 20] total 30 [2025-01-09 09:49:33,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225710828] [2025-01-09 09:49:33,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:49:33,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 09:49:33,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:33,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 09:49:33,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=706, Unknown=0, NotChecked=0, Total=870 [2025-01-09 09:49:33,956 INFO L87 Difference]: Start difference. First operand 5553 states and 8810 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:35,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:35,827 INFO L93 Difference]: Finished difference Result 13102 states and 20492 transitions. [2025-01-09 09:49:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 09:49:35,827 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 486 [2025-01-09 09:49:35,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:35,875 INFO L225 Difference]: With dead ends: 13102 [2025-01-09 09:49:35,875 INFO L226 Difference]: Without dead ends: 7552 [2025-01-09 09:49:35,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 954 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=208, Invalid=914, Unknown=0, NotChecked=0, Total=1122 [2025-01-09 09:49:35,910 INFO L435 NwaCegarLoop]: 458 mSDtfsCounter, 182 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:35,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2101 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-09 09:49:35,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7552 states. [2025-01-09 09:49:36,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7552 to 5533. [2025-01-09 09:49:36,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5533 states, 4114 states have (on average 1.4890617403986388) internal successors, (6126), 4118 states have internal predecessors, (6126), 1332 states have call successors, (1332), 86 states have call predecessors, (1332), 86 states have return successors, (1332), 1328 states have call predecessors, (1332), 1332 states have call successors, (1332) [2025-01-09 09:49:36,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5533 states to 5533 states and 8790 transitions. [2025-01-09 09:49:36,426 INFO L78 Accepts]: Start accepts. Automaton has 5533 states and 8790 transitions. Word has length 486 [2025-01-09 09:49:36,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:36,427 INFO L471 AbstractCegarLoop]: Abstraction has 5533 states and 8790 transitions. [2025-01-09 09:49:36,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:36,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5533 states and 8790 transitions. [2025-01-09 09:49:36,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2025-01-09 09:49:36,431 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:36,431 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:36,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-01-09 09:49:36,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:36,635 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:36,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:36,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1874499569, now seen corresponding path program 1 times [2025-01-09 09:49:36,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:36,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008253466] [2025-01-09 09:49:36,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:36,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:36,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:36,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:36,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:36,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:37,825 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 33 proven. 195 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-01-09 09:49:37,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:37,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008253466] [2025-01-09 09:49:37,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008253466] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 09:49:37,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150783954] [2025-01-09 09:49:37,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:37,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:37,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:49:37,828 INFO L229 MonitoredProcess]: Starting monitored process 10 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 09:49:37,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-09 09:49:37,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 486 statements into 1 equivalence classes. [2025-01-09 09:49:38,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 486 of 486 statements. [2025-01-09 09:49:38,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:38,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:38,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 09:49:38,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:49:38,274 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:49:38,274 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 09:49:38,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150783954] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:49:38,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 09:49:38,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 13 [2025-01-09 09:49:38,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496393510] [2025-01-09 09:49:38,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:49:38,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 09:49:38,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:38,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 09:49:38,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2025-01-09 09:49:38,276 INFO L87 Difference]: Start difference. First operand 5533 states and 8790 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:38,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:38,712 INFO L93 Difference]: Finished difference Result 12158 states and 19130 transitions. [2025-01-09 09:49:38,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 09:49:38,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 486 [2025-01-09 09:49:38,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:38,730 INFO L225 Difference]: With dead ends: 12158 [2025-01-09 09:49:38,730 INFO L226 Difference]: Without dead ends: 6628 [2025-01-09 09:49:38,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2025-01-09 09:49:38,740 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 91 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:38,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1352 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 09:49:38,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6628 states. [2025-01-09 09:49:39,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6628 to 5113. [2025-01-09 09:49:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 3694 states have (on average 1.4796968056307527) internal successors, (5466), 3698 states have internal predecessors, (5466), 1332 states have call successors, (1332), 86 states have call predecessors, (1332), 86 states have return successors, (1332), 1328 states have call predecessors, (1332), 1332 states have call successors, (1332) [2025-01-09 09:49:39,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 8130 transitions. [2025-01-09 09:49:39,074 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 8130 transitions. Word has length 486 [2025-01-09 09:49:39,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:39,075 INFO L471 AbstractCegarLoop]: Abstraction has 5113 states and 8130 transitions. [2025-01-09 09:49:39,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:39,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 8130 transitions. [2025-01-09 09:49:39,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2025-01-09 09:49:39,078 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:39,079 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:39,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-09 09:49:39,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:39,283 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:39,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:39,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1226904239, now seen corresponding path program 1 times [2025-01-09 09:49:39,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:39,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40579431] [2025-01-09 09:49:39,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:39,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:39,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 488 statements into 1 equivalence classes. [2025-01-09 09:49:39,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 488 of 488 statements. [2025-01-09 09:49:39,388 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:39,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 09:49:39,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442938392] [2025-01-09 09:49:39,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:39,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:39,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:49:39,394 INFO L229 MonitoredProcess]: Starting monitored process 11 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 09:49:39,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-09 09:49:39,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 488 statements into 1 equivalence classes. [2025-01-09 09:49:39,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 488 of 488 statements. [2025-01-09 09:49:39,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:39,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:39,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 09:49:39,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:49:40,040 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 1236 proven. 216 refuted. 0 times theorem prover too weak. 10252 trivial. 0 not checked. [2025-01-09 09:49:40,041 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 09:49:40,456 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 12 proven. 216 refuted. 0 times theorem prover too weak. 11476 trivial. 0 not checked. [2025-01-09 09:49:40,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:40,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40579431] [2025-01-09 09:49:40,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 09:49:40,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442938392] [2025-01-09 09:49:40,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442938392] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 09:49:40,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 09:49:40,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2025-01-09 09:49:40,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031352961] [2025-01-09 09:49:40,458 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 09:49:40,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-09 09:49:40,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:40,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-09 09:49:40,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2025-01-09 09:49:40,460 INFO L87 Difference]: Start difference. First operand 5113 states and 8130 transitions. Second operand has 16 states, 16 states have (on average 12.5625) internal successors, (201), 16 states have internal predecessors, (201), 3 states have call successors, (149), 2 states have call predecessors, (149), 4 states have return successors, (150), 3 states have call predecessors, (150), 3 states have call successors, (150) [2025-01-09 09:49:41,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:41,998 INFO L93 Difference]: Finished difference Result 12167 states and 18739 transitions. [2025-01-09 09:49:41,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-09 09:49:41,999 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.5625) internal successors, (201), 16 states have internal predecessors, (201), 3 states have call successors, (149), 2 states have call predecessors, (149), 4 states have return successors, (150), 3 states have call predecessors, (150), 3 states have call successors, (150) Word has length 488 [2025-01-09 09:49:41,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:42,017 INFO L225 Difference]: With dead ends: 12167 [2025-01-09 09:49:42,018 INFO L226 Difference]: Without dead ends: 7057 [2025-01-09 09:49:42,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 984 GetRequests, 960 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2025-01-09 09:49:42,027 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 304 mSDsluCounter, 1411 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:42,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1742 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-09 09:49:42,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7057 states. [2025-01-09 09:49:42,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7057 to 5593. [2025-01-09 09:49:42,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5593 states, 4154 states have (on average 1.4602792489167067) internal successors, (6066), 4158 states have internal predecessors, (6066), 1332 states have call successors, (1332), 106 states have call predecessors, (1332), 106 states have return successors, (1332), 1328 states have call predecessors, (1332), 1332 states have call successors, (1332) [2025-01-09 09:49:42,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5593 states to 5593 states and 8730 transitions. [2025-01-09 09:49:42,377 INFO L78 Accepts]: Start accepts. Automaton has 5593 states and 8730 transitions. Word has length 488 [2025-01-09 09:49:42,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:42,377 INFO L471 AbstractCegarLoop]: Abstraction has 5593 states and 8730 transitions. [2025-01-09 09:49:42,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.5625) internal successors, (201), 16 states have internal predecessors, (201), 3 states have call successors, (149), 2 states have call predecessors, (149), 4 states have return successors, (150), 3 states have call predecessors, (150), 3 states have call successors, (150) [2025-01-09 09:49:42,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5593 states and 8730 transitions. [2025-01-09 09:49:42,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2025-01-09 09:49:42,381 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:42,381 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:42,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-09 09:49:42,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-09 09:49:42,582 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:42,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:42,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1657882264, now seen corresponding path program 1 times [2025-01-09 09:49:42,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:42,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378059161] [2025-01-09 09:49:42,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:42,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:42,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 488 statements into 1 equivalence classes. [2025-01-09 09:49:42,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 488 of 488 statements. [2025-01-09 09:49:42,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:42,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:42,679 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:49:42,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:42,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378059161] [2025-01-09 09:49:42,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378059161] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:49:42,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:49:42,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 09:49:42,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750583663] [2025-01-09 09:49:42,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:49:42,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 09:49:42,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:42,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 09:49:42,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 09:49:42,682 INFO L87 Difference]: Start difference. First operand 5593 states and 8730 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:43,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:43,228 INFO L93 Difference]: Finished difference Result 15453 states and 24284 transitions. [2025-01-09 09:49:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 09:49:43,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 488 [2025-01-09 09:49:43,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:43,254 INFO L225 Difference]: With dead ends: 15453 [2025-01-09 09:49:43,255 INFO L226 Difference]: Without dead ends: 9863 [2025-01-09 09:49:43,265 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 09:49:43,265 INFO L435 NwaCegarLoop]: 392 mSDtfsCounter, 362 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:43,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 752 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 09:49:43,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9863 states. [2025-01-09 09:49:43,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9863 to 5593. [2025-01-09 09:49:43,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5593 states, 4154 states have (on average 1.455464612421762) internal successors, (6046), 4158 states have internal predecessors, (6046), 1332 states have call successors, (1332), 106 states have call predecessors, (1332), 106 states have return successors, (1332), 1328 states have call predecessors, (1332), 1332 states have call successors, (1332) [2025-01-09 09:49:43,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5593 states to 5593 states and 8710 transitions. [2025-01-09 09:49:43,815 INFO L78 Accepts]: Start accepts. Automaton has 5593 states and 8710 transitions. Word has length 488 [2025-01-09 09:49:43,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:43,815 INFO L471 AbstractCegarLoop]: Abstraction has 5593 states and 8710 transitions. [2025-01-09 09:49:43,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:43,816 INFO L276 IsEmpty]: Start isEmpty. Operand 5593 states and 8710 transitions. [2025-01-09 09:49:43,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2025-01-09 09:49:43,819 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:43,819 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:43,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 09:49:43,820 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:43,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:43,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1356116984, now seen corresponding path program 1 times [2025-01-09 09:49:43,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:43,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385309213] [2025-01-09 09:49:43,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:43,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:43,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 488 statements into 1 equivalence classes. [2025-01-09 09:49:43,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 488 of 488 statements. [2025-01-09 09:49:43,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:43,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:49:44,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:44,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385309213] [2025-01-09 09:49:44,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385309213] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:49:44,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:49:44,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 09:49:44,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375733677] [2025-01-09 09:49:44,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:49:44,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 09:49:44,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:44,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 09:49:44,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-01-09 09:49:44,581 INFO L87 Difference]: Start difference. First operand 5593 states and 8710 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:45,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:45,567 INFO L93 Difference]: Finished difference Result 15989 states and 23660 transitions. [2025-01-09 09:49:45,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 09:49:45,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 488 [2025-01-09 09:49:45,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:45,589 INFO L225 Difference]: With dead ends: 15989 [2025-01-09 09:49:45,589 INFO L226 Difference]: Without dead ends: 10399 [2025-01-09 09:49:45,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-01-09 09:49:45,600 INFO L435 NwaCegarLoop]: 446 mSDtfsCounter, 186 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:45,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1667 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 09:49:45,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10399 states. [2025-01-09 09:49:46,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10399 to 8013. [2025-01-09 09:49:46,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8013 states, 6264 states have (on average 1.4137931034482758) internal successors, (8856), 6288 states have internal predecessors, (8856), 1552 states have call successors, (1552), 196 states have call predecessors, (1552), 196 states have return successors, (1552), 1528 states have call predecessors, (1552), 1552 states have call successors, (1552) [2025-01-09 09:49:46,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8013 states to 8013 states and 11960 transitions. [2025-01-09 09:49:46,358 INFO L78 Accepts]: Start accepts. Automaton has 8013 states and 11960 transitions. Word has length 488 [2025-01-09 09:49:46,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:46,359 INFO L471 AbstractCegarLoop]: Abstraction has 8013 states and 11960 transitions. [2025-01-09 09:49:46,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 8013 states and 11960 transitions. [2025-01-09 09:49:46,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2025-01-09 09:49:46,366 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:46,366 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:46,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 09:49:46,367 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:46,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:46,367 INFO L85 PathProgramCache]: Analyzing trace with hash -933415158, now seen corresponding path program 1 times [2025-01-09 09:49:46,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:46,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289486217] [2025-01-09 09:49:46,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:46,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:46,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 488 statements into 1 equivalence classes. [2025-01-09 09:49:46,461 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 488 of 488 statements. [2025-01-09 09:49:46,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:46,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:49:46,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:46,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289486217] [2025-01-09 09:49:46,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289486217] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:49:46,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:49:46,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 09:49:46,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260695110] [2025-01-09 09:49:46,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:49:46,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 09:49:46,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:46,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 09:49:46,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 09:49:46,843 INFO L87 Difference]: Start difference. First operand 8013 states and 11960 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, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:48,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:48,344 INFO L93 Difference]: Finished difference Result 23675 states and 34975 transitions. [2025-01-09 09:49:48,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 09:49:48,345 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, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 488 [2025-01-09 09:49:48,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:48,378 INFO L225 Difference]: With dead ends: 23675 [2025-01-09 09:49:48,378 INFO L226 Difference]: Without dead ends: 15665 [2025-01-09 09:49:48,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 09:49:48,394 INFO L435 NwaCegarLoop]: 707 mSDtfsCounter, 419 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:48,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 2160 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 09:49:48,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15665 states. [2025-01-09 09:49:49,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15665 to 8153. [2025-01-09 09:49:49,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8153 states, 6404 states have (on average 1.4141161773891318) internal successors, (9056), 6428 states have internal predecessors, (9056), 1552 states have call successors, (1552), 196 states have call predecessors, (1552), 196 states have return successors, (1552), 1528 states have call predecessors, (1552), 1552 states have call successors, (1552) [2025-01-09 09:49:49,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8153 states to 8153 states and 12160 transitions. [2025-01-09 09:49:49,099 INFO L78 Accepts]: Start accepts. Automaton has 8153 states and 12160 transitions. Word has length 488 [2025-01-09 09:49:49,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:49,100 INFO L471 AbstractCegarLoop]: Abstraction has 8153 states and 12160 transitions. [2025-01-09 09:49:49,100 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, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:49,100 INFO L276 IsEmpty]: Start isEmpty. Operand 8153 states and 12160 transitions. [2025-01-09 09:49:49,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2025-01-09 09:49:49,105 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:49,105 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:49,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-09 09:49:49,105 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:49,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:49,106 INFO L85 PathProgramCache]: Analyzing trace with hash 623895546, now seen corresponding path program 1 times [2025-01-09 09:49:49,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:49,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787001615] [2025-01-09 09:49:49,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:49,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:49,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 489 statements into 1 equivalence classes. [2025-01-09 09:49:49,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 489 of 489 statements. [2025-01-09 09:49:49,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:49,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:49:51,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:51,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787001615] [2025-01-09 09:49:51,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787001615] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:49:51,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:49:51,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-01-09 09:49:51,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715095109] [2025-01-09 09:49:51,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:49:51,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-09 09:49:51,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:51,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-09 09:49:51,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2025-01-09 09:49:51,620 INFO L87 Difference]: Start difference. First operand 8153 states and 12160 transitions. Second operand has 17 states, 17 states have (on average 6.294117647058823) internal successors, (107), 17 states have internal predecessors, (107), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:54,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:54,871 INFO L93 Difference]: Finished difference Result 9464 states and 13846 transitions. [2025-01-09 09:49:54,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-09 09:49:54,872 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.294117647058823) internal successors, (107), 17 states have internal predecessors, (107), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 489 [2025-01-09 09:49:54,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:54,909 INFO L225 Difference]: With dead ends: 9464 [2025-01-09 09:49:54,909 INFO L226 Difference]: Without dead ends: 9462 [2025-01-09 09:49:54,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=224, Invalid=646, Unknown=0, NotChecked=0, Total=870 [2025-01-09 09:49:54,912 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 495 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 2599 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:54,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 2599 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1878 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-09 09:49:54,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9462 states. [2025-01-09 09:49:55,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9462 to 8773. [2025-01-09 09:49:55,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8773 states, 7024 states have (on average 1.4117312072892938) internal successors, (9916), 7048 states have internal predecessors, (9916), 1552 states have call successors, (1552), 196 states have call predecessors, (1552), 196 states have return successors, (1552), 1528 states have call predecessors, (1552), 1552 states have call successors, (1552) [2025-01-09 09:49:55,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8773 states to 8773 states and 13020 transitions. [2025-01-09 09:49:55,551 INFO L78 Accepts]: Start accepts. Automaton has 8773 states and 13020 transitions. Word has length 489 [2025-01-09 09:49:55,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:55,554 INFO L471 AbstractCegarLoop]: Abstraction has 8773 states and 13020 transitions. [2025-01-09 09:49:55,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.294117647058823) internal successors, (107), 17 states have internal predecessors, (107), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:55,554 INFO L276 IsEmpty]: Start isEmpty. Operand 8773 states and 13020 transitions. [2025-01-09 09:49:55,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2025-01-09 09:49:55,562 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:55,563 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:55,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-09 09:49:55,563 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:55,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:55,563 INFO L85 PathProgramCache]: Analyzing trace with hash 925660826, now seen corresponding path program 1 times [2025-01-09 09:49:55,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:55,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669730256] [2025-01-09 09:49:55,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:55,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:55,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 489 statements into 1 equivalence classes. [2025-01-09 09:49:55,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 489 of 489 statements. [2025-01-09 09:49:55,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:55,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:56,367 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2025-01-09 09:49:56,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 09:49:56,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669730256] [2025-01-09 09:49:56,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669730256] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 09:49:56,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 09:49:56,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 09:49:56,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045359754] [2025-01-09 09:49:56,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 09:49:56,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 09:49:56,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 09:49:56,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 09:49:56,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-01-09 09:49:56,369 INFO L87 Difference]: Start difference. First operand 8773 states and 13020 transitions. Second operand has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:57,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 09:49:57,753 INFO L93 Difference]: Finished difference Result 20011 states and 29001 transitions. [2025-01-09 09:49:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 09:49:57,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 489 [2025-01-09 09:49:57,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 09:49:57,782 INFO L225 Difference]: With dead ends: 20011 [2025-01-09 09:49:57,782 INFO L226 Difference]: Without dead ends: 11241 [2025-01-09 09:49:57,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2025-01-09 09:49:57,805 INFO L435 NwaCegarLoop]: 402 mSDtfsCounter, 284 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 09:49:57,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 1607 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 09:49:57,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11241 states. [2025-01-09 09:49:58,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11241 to 8833. [2025-01-09 09:49:58,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8833 states, 7084 states have (on average 1.4054206662902315) internal successors, (9956), 7108 states have internal predecessors, (9956), 1552 states have call successors, (1552), 196 states have call predecessors, (1552), 196 states have return successors, (1552), 1528 states have call predecessors, (1552), 1552 states have call successors, (1552) [2025-01-09 09:49:58,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8833 states to 8833 states and 13060 transitions. [2025-01-09 09:49:58,492 INFO L78 Accepts]: Start accepts. Automaton has 8833 states and 13060 transitions. Word has length 489 [2025-01-09 09:49:58,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 09:49:58,493 INFO L471 AbstractCegarLoop]: Abstraction has 8833 states and 13060 transitions. [2025-01-09 09:49:58,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2025-01-09 09:49:58,494 INFO L276 IsEmpty]: Start isEmpty. Operand 8833 states and 13060 transitions. [2025-01-09 09:49:58,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2025-01-09 09:49:58,500 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 09:49:58,500 INFO L218 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 09:49:58,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-09 09:49:58,500 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 09:49:58,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 09:49:58,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1859250419, now seen corresponding path program 1 times [2025-01-09 09:49:58,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 09:49:58,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103603092] [2025-01-09 09:49:58,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:58,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 09:49:58,530 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 489 statements into 1 equivalence classes. [2025-01-09 09:49:58,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 489 of 489 statements. [2025-01-09 09:49:58,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:58,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 09:49:58,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [277545507] [2025-01-09 09:49:58,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 09:49:58,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 09:49:58,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 09:49:58,654 INFO L229 MonitoredProcess]: Starting monitored process 12 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 09:49:58,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-09 09:49:58,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 489 statements into 1 equivalence classes. [2025-01-09 09:49:58,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 489 of 489 statements. [2025-01-09 09:49:58,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 09:49:58,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 09:49:59,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-01-09 09:49:59,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 09:50:01,558 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 6782 proven. 417 refuted. 0 times theorem prover too weak. 4505 trivial. 0 not checked. [2025-01-09 09:50:01,558 INFO L312 TraceCheckSpWp]: Computing backward predicates...