./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-73.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-500_file-73.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 ff8b1e3c8fca84bf7aa4f961205f2b6eea68a0ab1a2694b5097394cdb3b9c760 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 10:07:45,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 10:07:45,116 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 10:07:45,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 10:07:45,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 10:07:45,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 10:07:45,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 10:07:45,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 10:07:45,146 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 10:07:45,147 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 10:07:45,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 10:07:45,147 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 10:07:45,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 10:07:45,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 10:07:45,148 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 10:07:45,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 10:07:45,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 10:07:45,148 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 10:07:45,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 10:07:45,148 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 10:07:45,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 10:07:45,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 10:07:45,148 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 10:07:45,148 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 10:07:45,148 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 10:07:45,149 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 10:07:45,149 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 10:07:45,149 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 10:07:45,149 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 10:07:45,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 10:07:45,149 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 10:07:45,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 10:07:45,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 10:07:45,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 10:07:45,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 10:07:45,149 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 10:07:45,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 10:07:45,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 10:07:45,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 10:07:45,151 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 10:07:45,151 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 10:07:45,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 10:07:45,151 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 10:07:45,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 10:07:45,152 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 10:07:45,152 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 10:07:45,152 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 10:07:45,152 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 10:07:45,152 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 -> ff8b1e3c8fca84bf7aa4f961205f2b6eea68a0ab1a2694b5097394cdb3b9c760 [2025-01-09 10:07:45,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 10:07:45,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 10:07:45,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 10:07:45,492 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 10:07:45,492 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 10:07:45,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-73.i [2025-01-09 10:07:46,905 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/67090a182/253b12b3b1fe4fa89d387242d10448ed/FLAGceabce4fc [2025-01-09 10:07:47,253 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 10:07:47,254 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-73.i [2025-01-09 10:07:47,269 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/67090a182/253b12b3b1fe4fa89d387242d10448ed/FLAGceabce4fc [2025-01-09 10:07:47,294 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/67090a182/253b12b3b1fe4fa89d387242d10448ed [2025-01-09 10:07:47,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 10:07:47,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 10:07:47,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 10:07:47,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 10:07:47,303 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 10:07:47,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:47,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c2d8f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47, skipping insertion in model container [2025-01-09 10:07:47,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:47,341 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 10:07:47,490 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-500_file-73.i[916,929] [2025-01-09 10:07:47,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 10:07:47,688 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 10:07:47,699 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-500_file-73.i[916,929] [2025-01-09 10:07:47,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 10:07:47,825 INFO L204 MainTranslator]: Completed translation [2025-01-09 10:07:47,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47 WrapperNode [2025-01-09 10:07:47,829 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 10:07:47,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 10:07:47,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 10:07:47,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 10:07:47,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:47,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:47,936 INFO L138 Inliner]: procedures = 26, calls = 94, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 779 [2025-01-09 10:07:47,937 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 10:07:47,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 10:07:47,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 10:07:47,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 10:07:47,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:47,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:47,959 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:47,991 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 10:07:47,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:47,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:48,017 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:48,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:48,039 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:48,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:48,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:48,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 10:07:48,075 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 10:07:48,075 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 10:07:48,075 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 10:07:48,076 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (1/1) ... [2025-01-09 10:07:48,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 10:07:48,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 10:07:48,106 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 10:07:48,112 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 10:07:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 10:07:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 10:07:48,131 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 10:07:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 10:07:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 10:07:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 10:07:48,282 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 10:07:48,284 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 10:07:49,464 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-01-09 10:07:49,465 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 10:07:49,481 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 10:07:49,482 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 10:07:49,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:07:49 BoogieIcfgContainer [2025-01-09 10:07:49,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 10:07:49,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 10:07:49,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 10:07:49,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 10:07:49,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 10:07:47" (1/3) ... [2025-01-09 10:07:49,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d72871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:07:49, skipping insertion in model container [2025-01-09 10:07:49,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:07:47" (2/3) ... [2025-01-09 10:07:49,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d72871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:07:49, skipping insertion in model container [2025-01-09 10:07:49,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:07:49" (3/3) ... [2025-01-09 10:07:49,495 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-73.i [2025-01-09 10:07:49,509 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 10:07:49,513 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-73.i that has 2 procedures, 316 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 10:07:49,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 10:07:49,603 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;@1e474d36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 10:07:49,604 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 10:07:49,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 316 states, 232 states have (on average 1.6120689655172413) internal successors, (374), 233 states have internal predecessors, (374), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-01-09 10:07:49,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2025-01-09 10:07:49,646 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:07:49,648 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:07:49,648 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:07:49,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:07:49,655 INFO L85 PathProgramCache]: Analyzing trace with hash -919879316, now seen corresponding path program 1 times [2025-01-09 10:07:49,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:07:49,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804682966] [2025-01-09 10:07:49,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:07:49,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:07:49,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:07:49,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:07:49,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:07:49,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:07:50,385 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 12800 trivial. 0 not checked. [2025-01-09 10:07:50,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:07:50,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804682966] [2025-01-09 10:07:50,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804682966] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 10:07:50,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741561067] [2025-01-09 10:07:50,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:07:50,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:07:50,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 10:07:50,391 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 10:07:50,392 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 10:07:50,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:07:50,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:07:50,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:07:50,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:07:50,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 1329 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 10:07:50,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 10:07:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 12800 trivial. 0 not checked. [2025-01-09 10:07:50,901 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 10:07:50,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741561067] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 10:07:50,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 10:07:50,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 10:07:50,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623675178] [2025-01-09 10:07:50,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 10:07:50,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 10:07:50,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:07:50,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 10:07:50,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 10:07:50,934 INFO L87 Difference]: Start difference. First operand has 316 states, 232 states have (on average 1.6120689655172413) internal successors, (374), 233 states have internal predecessors, (374), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 2 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 2 states have call successors, (81) [2025-01-09 10:07:51,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:07:51,005 INFO L93 Difference]: Finished difference Result 626 states and 1148 transitions. [2025-01-09 10:07:51,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 10:07:51,007 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 2 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 2 states have call successors, (81) Word has length 553 [2025-01-09 10:07:51,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:07:51,014 INFO L225 Difference]: With dead ends: 626 [2025-01-09 10:07:51,015 INFO L226 Difference]: Without dead ends: 313 [2025-01-09 10:07:51,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 554 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 10:07:51,022 INFO L435 NwaCegarLoop]: 531 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, 531 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 10:07:51,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 10:07:51,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2025-01-09 10:07:51,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2025-01-09 10:07:51,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 230 states have (on average 1.6043478260869566) internal successors, (369), 230 states have internal predecessors, (369), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-01-09 10:07:51,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 531 transitions. [2025-01-09 10:07:51,122 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 531 transitions. Word has length 553 [2025-01-09 10:07:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 10:07:51,124 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 531 transitions. [2025-01-09 10:07:51,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 2 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 2 states have call successors, (81) [2025-01-09 10:07:51,127 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 531 transitions. [2025-01-09 10:07:51,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2025-01-09 10:07:51,141 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:07:51,141 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:07:51,153 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 10:07:51,342 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 10:07:51,342 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:07:51,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:07:51,343 INFO L85 PathProgramCache]: Analyzing trace with hash 677002974, now seen corresponding path program 1 times [2025-01-09 10:07:51,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:07:51,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324794724] [2025-01-09 10:07:51,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:07:51,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:07:51,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:07:51,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:07:51,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:07:51,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:07:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2025-01-09 10:07:51,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:07:51,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324794724] [2025-01-09 10:07:51,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324794724] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 10:07:51,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 10:07:51,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 10:07:51,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748690867] [2025-01-09 10:07:51,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 10:07:51,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 10:07:51,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:07:51,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 10:07:51,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 10:07:51,999 INFO L87 Difference]: Start difference. First operand 313 states and 531 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:07:52,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:07:52,129 INFO L93 Difference]: Finished difference Result 835 states and 1423 transitions. [2025-01-09 10:07:52,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 10:07:52,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 553 [2025-01-09 10:07:52,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:07:52,139 INFO L225 Difference]: With dead ends: 835 [2025-01-09 10:07:52,140 INFO L226 Difference]: Without dead ends: 525 [2025-01-09 10:07:52,142 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 10:07:52,143 INFO L435 NwaCegarLoop]: 771 mSDtfsCounter, 372 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 10:07:52,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1260 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 10:07:52,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2025-01-09 10:07:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 522. [2025-01-09 10:07:52,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 398 states have (on average 1.6180904522613064) internal successors, (644), 399 states have internal predecessors, (644), 121 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2025-01-09 10:07:52,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 886 transitions. [2025-01-09 10:07:52,236 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 886 transitions. Word has length 553 [2025-01-09 10:07:52,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 10:07:52,238 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 886 transitions. [2025-01-09 10:07:52,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:07:52,238 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 886 transitions. [2025-01-09 10:07:52,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2025-01-09 10:07:52,251 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:07:52,251 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:07:52,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 10:07:52,251 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:07:52,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:07:52,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1202127972, now seen corresponding path program 1 times [2025-01-09 10:07:52,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:07:52,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713692570] [2025-01-09 10:07:52,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:07:52,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:07:52,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:07:52,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:07:52,396 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:07:52,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:07:53,249 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 18 proven. 222 refuted. 0 times theorem prover too weak. 12720 trivial. 0 not checked. [2025-01-09 10:07:53,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:07:53,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713692570] [2025-01-09 10:07:53,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713692570] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 10:07:53,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543716292] [2025-01-09 10:07:53,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:07:53,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:07:53,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 10:07:53,252 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 10:07:53,256 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 10:07:53,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:07:53,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:07:53,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:07:53,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:07:53,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 10:07:53,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 10:07:55,658 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2025-01-09 10:07:55,658 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 10:07:55,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543716292] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 10:07:55,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 10:07:55,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2025-01-09 10:07:55,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002527986] [2025-01-09 10:07:55,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 10:07:55,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 10:07:55,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:07:55,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 10:07:55,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:07:55,662 INFO L87 Difference]: Start difference. First operand 522 states and 886 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:07:55,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:07:55,812 INFO L93 Difference]: Finished difference Result 1560 states and 2652 transitions. [2025-01-09 10:07:55,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 10:07:55,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 553 [2025-01-09 10:07:55,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:07:55,823 INFO L225 Difference]: With dead ends: 1560 [2025-01-09 10:07:55,824 INFO L226 Difference]: Without dead ends: 1041 [2025-01-09 10:07:55,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:07:55,827 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 266 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 10:07:55,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 1005 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 10:07:55,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2025-01-09 10:07:55,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1038. [2025-01-09 10:07:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 791 states have (on average 1.618204804045512) internal successors, (1280), 793 states have internal predecessors, (1280), 242 states have call successors, (242), 4 states have call predecessors, (242), 4 states have return successors, (242), 240 states have call predecessors, (242), 242 states have call successors, (242) [2025-01-09 10:07:55,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1764 transitions. [2025-01-09 10:07:55,954 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1764 transitions. Word has length 553 [2025-01-09 10:07:55,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 10:07:55,955 INFO L471 AbstractCegarLoop]: Abstraction has 1038 states and 1764 transitions. [2025-01-09 10:07:55,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:07:55,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1764 transitions. [2025-01-09 10:07:55,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2025-01-09 10:07:55,966 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:07:55,966 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:07:55,977 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 10:07:56,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:07:56,167 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:07:56,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:07:56,168 INFO L85 PathProgramCache]: Analyzing trace with hash 336212058, now seen corresponding path program 1 times [2025-01-09 10:07:56,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:07:56,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529887386] [2025-01-09 10:07:56,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:07:56,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:07:56,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:07:56,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:07:56,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:07:56,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:07:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 18 proven. 222 refuted. 0 times theorem prover too weak. 12720 trivial. 0 not checked. [2025-01-09 10:07:56,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:07:56,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529887386] [2025-01-09 10:07:56,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529887386] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 10:07:56,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970853974] [2025-01-09 10:07:56,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:07:56,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:07:56,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 10:07:56,866 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 10:07:56,870 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 10:07:57,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:07:57,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:07:57,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:07:57,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:07:57,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 1327 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 10:07:57,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 10:07:57,918 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2025-01-09 10:07:57,919 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 10:07:57,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970853974] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 10:07:57,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 10:07:57,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2025-01-09 10:07:57,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114374037] [2025-01-09 10:07:57,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 10:07:57,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 10:07:57,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:07:57,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 10:07:57,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:07:57,923 INFO L87 Difference]: Start difference. First operand 1038 states and 1764 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:07:58,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:07:58,053 INFO L93 Difference]: Finished difference Result 3108 states and 5286 transitions. [2025-01-09 10:07:58,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 10:07:58,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 553 [2025-01-09 10:07:58,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:07:58,072 INFO L225 Difference]: With dead ends: 3108 [2025-01-09 10:07:58,072 INFO L226 Difference]: Without dead ends: 2073 [2025-01-09 10:07:58,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:07:58,077 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 257 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 10:07:58,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 1026 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 10:07:58,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2025-01-09 10:07:58,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2071. [2025-01-09 10:07:58,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2071 states, 1578 states have (on average 1.6159695817490494) internal successors, (2550), 1582 states have internal predecessors, (2550), 484 states have call successors, (484), 8 states have call predecessors, (484), 8 states have return successors, (484), 480 states have call predecessors, (484), 484 states have call successors, (484) [2025-01-09 10:07:58,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2071 states to 2071 states and 3518 transitions. [2025-01-09 10:07:58,307 INFO L78 Accepts]: Start accepts. Automaton has 2071 states and 3518 transitions. Word has length 553 [2025-01-09 10:07:58,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 10:07:58,308 INFO L471 AbstractCegarLoop]: Abstraction has 2071 states and 3518 transitions. [2025-01-09 10:07:58,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:07:58,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2071 states and 3518 transitions. [2025-01-09 10:07:58,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2025-01-09 10:07:58,315 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:07:58,316 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:07:58,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 10:07:58,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:07:58,517 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:07:58,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:07:58,517 INFO L85 PathProgramCache]: Analyzing trace with hash 584358552, now seen corresponding path program 1 times [2025-01-09 10:07:58,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:07:58,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146929465] [2025-01-09 10:07:58,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:07:58,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:07:58,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:07:58,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:07:58,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:07:58,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:07:59,111 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 18 proven. 222 refuted. 0 times theorem prover too weak. 12720 trivial. 0 not checked. [2025-01-09 10:07:59,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:07:59,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146929465] [2025-01-09 10:07:59,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146929465] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 10:07:59,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918973253] [2025-01-09 10:07:59,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:07:59,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:07:59,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 10:07:59,114 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 10:07:59,117 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 10:07:59,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:07:59,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:07:59,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:07:59,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:07:59,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 10:07:59,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 10:07:59,569 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2025-01-09 10:07:59,569 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 10:07:59,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918973253] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 10:07:59,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 10:07:59,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-01-09 10:07:59,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962340077] [2025-01-09 10:07:59,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 10:07:59,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 10:07:59,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:07:59,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 10:07:59,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:07:59,574 INFO L87 Difference]: Start difference. First operand 2071 states and 3518 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:07:59,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:07:59,732 INFO L93 Difference]: Finished difference Result 5613 states and 9514 transitions. [2025-01-09 10:07:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 10:07:59,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 553 [2025-01-09 10:07:59,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:07:59,758 INFO L225 Difference]: With dead ends: 5613 [2025-01-09 10:07:59,758 INFO L226 Difference]: Without dead ends: 3545 [2025-01-09 10:07:59,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:07:59,768 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 300 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 10:07:59,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1091 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 10:07:59,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3545 states. [2025-01-09 10:08:00,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3545 to 3539. [2025-01-09 10:08:00,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3539 states, 2686 states have (on average 1.601638123603872) internal successors, (4302), 2698 states have internal predecessors, (4302), 836 states have call successors, (836), 16 states have call predecessors, (836), 16 states have return successors, (836), 824 states have call predecessors, (836), 836 states have call successors, (836) [2025-01-09 10:08:00,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3539 states to 3539 states and 5974 transitions. [2025-01-09 10:08:00,050 INFO L78 Accepts]: Start accepts. Automaton has 3539 states and 5974 transitions. Word has length 553 [2025-01-09 10:08:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 10:08:00,051 INFO L471 AbstractCegarLoop]: Abstraction has 3539 states and 5974 transitions. [2025-01-09 10:08:00,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:00,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3539 states and 5974 transitions. [2025-01-09 10:08:00,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2025-01-09 10:08:00,060 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:08:00,060 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:08:00,071 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 10:08:00,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:08:00,265 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:08:00,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:08:00,265 INFO L85 PathProgramCache]: Analyzing trace with hash 606990806, now seen corresponding path program 1 times [2025-01-09 10:08:00,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:08:00,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800871568] [2025-01-09 10:08:00,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:00,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:08:00,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:08:00,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:08:00,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:00,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:00,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 18 proven. 222 refuted. 0 times theorem prover too weak. 12720 trivial. 0 not checked. [2025-01-09 10:08:00,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:08:00,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800871568] [2025-01-09 10:08:00,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800871568] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 10:08:00,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005948750] [2025-01-09 10:08:00,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:00,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:08:00,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 10:08:00,823 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 10:08:00,825 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 10:08:01,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:08:01,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:08:01,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:01,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:01,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 10:08:01,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 10:08:01,230 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2025-01-09 10:08:01,231 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 10:08:01,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005948750] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 10:08:01,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 10:08:01,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-01-09 10:08:01,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256678356] [2025-01-09 10:08:01,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 10:08:01,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 10:08:01,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:08:01,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 10:08:01,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:08:01,234 INFO L87 Difference]: Start difference. First operand 3539 states and 5974 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:01,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:08:01,498 INFO L93 Difference]: Finished difference Result 10595 states and 17884 transitions. [2025-01-09 10:08:01,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 10:08:01,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 553 [2025-01-09 10:08:01,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:08:01,547 INFO L225 Difference]: With dead ends: 10595 [2025-01-09 10:08:01,548 INFO L226 Difference]: Without dead ends: 7059 [2025-01-09 10:08:01,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:08:01,563 INFO L435 NwaCegarLoop]: 604 mSDtfsCounter, 509 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 10:08:01,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1125 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 10:08:01,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7059 states. [2025-01-09 10:08:02,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7059 to 7057. [2025-01-09 10:08:02,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7057 states, 5352 states have (on average 1.5919282511210762) internal successors, (8520), 5376 states have internal predecessors, (8520), 1672 states have call successors, (1672), 32 states have call predecessors, (1672), 32 states have return successors, (1672), 1648 states have call predecessors, (1672), 1672 states have call successors, (1672) [2025-01-09 10:08:02,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7057 states to 7057 states and 11864 transitions. [2025-01-09 10:08:02,166 INFO L78 Accepts]: Start accepts. Automaton has 7057 states and 11864 transitions. Word has length 553 [2025-01-09 10:08:02,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 10:08:02,167 INFO L471 AbstractCegarLoop]: Abstraction has 7057 states and 11864 transitions. [2025-01-09 10:08:02,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand 7057 states and 11864 transitions. [2025-01-09 10:08:02,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2025-01-09 10:08:02,186 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:08:02,186 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:08:02,197 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 10:08:02,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:08:02,387 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:08:02,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:08:02,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1174577174, now seen corresponding path program 1 times [2025-01-09 10:08:02,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:08:02,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473897007] [2025-01-09 10:08:02,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:02,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:08:02,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:08:02,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:08:02,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:02,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:02,885 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 18 proven. 222 refuted. 0 times theorem prover too weak. 12720 trivial. 0 not checked. [2025-01-09 10:08:02,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:08:02,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473897007] [2025-01-09 10:08:02,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473897007] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 10:08:02,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002260031] [2025-01-09 10:08:02,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:02,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:08:02,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 10:08:02,892 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 10:08:02,894 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 10:08:03,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:08:03,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:08:03,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:03,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:03,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 10:08:03,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 10:08:03,432 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2025-01-09 10:08:03,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 10:08:03,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002260031] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 10:08:03,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 10:08:03,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-01-09 10:08:03,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51996645] [2025-01-09 10:08:03,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 10:08:03,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 10:08:03,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:08:03,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 10:08:03,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:08:03,435 INFO L87 Difference]: Start difference. First operand 7057 states and 11864 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:04,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:08:04,012 INFO L93 Difference]: Finished difference Result 19801 states and 33206 transitions. [2025-01-09 10:08:04,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 10:08:04,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 553 [2025-01-09 10:08:04,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:08:04,111 INFO L225 Difference]: With dead ends: 19801 [2025-01-09 10:08:04,114 INFO L226 Difference]: Without dead ends: 12747 [2025-01-09 10:08:04,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:08:04,141 INFO L435 NwaCegarLoop]: 651 mSDtfsCounter, 267 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 10:08:04,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 1170 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 10:08:04,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12747 states. [2025-01-09 10:08:04,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12747 to 12729. [2025-01-09 10:08:04,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12729 states, 9616 states have (on average 1.5773710482529117) internal successors, (15168), 9672 states have internal predecessors, (15168), 3048 states have call successors, (3048), 64 states have call predecessors, (3048), 64 states have return successors, (3048), 2992 states have call predecessors, (3048), 3048 states have call successors, (3048) [2025-01-09 10:08:05,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12729 states to 12729 states and 21264 transitions. [2025-01-09 10:08:05,032 INFO L78 Accepts]: Start accepts. Automaton has 12729 states and 21264 transitions. Word has length 553 [2025-01-09 10:08:05,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 10:08:05,033 INFO L471 AbstractCegarLoop]: Abstraction has 12729 states and 21264 transitions. [2025-01-09 10:08:05,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:05,034 INFO L276 IsEmpty]: Start isEmpty. Operand 12729 states and 21264 transitions. [2025-01-09 10:08:05,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2025-01-09 10:08:05,052 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:08:05,052 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:08:05,063 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 10:08:05,253 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,SelfDestructingSolverStorable6 [2025-01-09 10:08:05,253 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:08:05,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:08:05,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1992225624, now seen corresponding path program 1 times [2025-01-09 10:08:05,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:08:05,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782169512] [2025-01-09 10:08:05,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:05,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:08:05,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:08:05,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:08:05,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:05,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:05,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 18 proven. 222 refuted. 0 times theorem prover too weak. 12720 trivial. 0 not checked. [2025-01-09 10:08:05,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:08:05,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782169512] [2025-01-09 10:08:05,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782169512] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 10:08:05,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221539285] [2025-01-09 10:08:05,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:05,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:08:05,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 10:08:05,720 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 10:08:05,722 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 10:08:05,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-01-09 10:08:06,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-01-09 10:08:06,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:06,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:06,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 10:08:06,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 10:08:07,365 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2025-01-09 10:08:07,366 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 10:08:07,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221539285] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 10:08:07,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 10:08:07,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2025-01-09 10:08:07,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986581260] [2025-01-09 10:08:07,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 10:08:07,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 10:08:07,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:08:07,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 10:08:07,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:08:07,368 INFO L87 Difference]: Start difference. First operand 12729 states and 21264 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:08,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:08:08,112 INFO L93 Difference]: Finished difference Result 28639 states and 47842 transitions. [2025-01-09 10:08:08,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 10:08:08,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 553 [2025-01-09 10:08:08,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:08:08,200 INFO L225 Difference]: With dead ends: 28639 [2025-01-09 10:08:08,200 INFO L226 Difference]: Without dead ends: 15913 [2025-01-09 10:08:08,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:08:08,254 INFO L435 NwaCegarLoop]: 736 mSDtfsCounter, 287 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 10:08:08,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 1237 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 10:08:08,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15913 states. [2025-01-09 10:08:09,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15913 to 15911. [2025-01-09 10:08:09,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15911 states, 12020 states have (on average 1.5760399334442596) internal successors, (18944), 12090 states have internal predecessors, (18944), 3810 states have call successors, (3810), 80 states have call predecessors, (3810), 80 states have return successors, (3810), 3740 states have call predecessors, (3810), 3810 states have call successors, (3810) [2025-01-09 10:08:09,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15911 states to 15911 states and 26564 transitions. [2025-01-09 10:08:09,219 INFO L78 Accepts]: Start accepts. Automaton has 15911 states and 26564 transitions. Word has length 553 [2025-01-09 10:08:09,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 10:08:09,221 INFO L471 AbstractCegarLoop]: Abstraction has 15911 states and 26564 transitions. [2025-01-09 10:08:09,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:09,222 INFO L276 IsEmpty]: Start isEmpty. Operand 15911 states and 26564 transitions. [2025-01-09 10:08:09,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2025-01-09 10:08:09,240 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:08:09,240 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:08:09,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-09 10:08:09,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:08:09,441 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:08:09,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:08:09,442 INFO L85 PathProgramCache]: Analyzing trace with hash 974019546, now seen corresponding path program 1 times [2025-01-09 10:08:09,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:08:09,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803085290] [2025-01-09 10:08:09,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:09,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:08:09,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 554 statements into 1 equivalence classes. [2025-01-09 10:08:09,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 554 of 554 statements. [2025-01-09 10:08:09,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:09,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:09,737 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2025-01-09 10:08:09,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:08:09,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803085290] [2025-01-09 10:08:09,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803085290] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 10:08:09,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 10:08:09,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 10:08:09,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552893908] [2025-01-09 10:08:09,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 10:08:09,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 10:08:09,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:08:09,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 10:08:09,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 10:08:09,742 INFO L87 Difference]: Start difference. First operand 15911 states and 26564 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:10,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:08:10,089 INFO L93 Difference]: Finished difference Result 25451 states and 42465 transitions. [2025-01-09 10:08:10,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 10:08:10,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 554 [2025-01-09 10:08:10,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:08:10,150 INFO L225 Difference]: With dead ends: 25451 [2025-01-09 10:08:10,151 INFO L226 Difference]: Without dead ends: 9543 [2025-01-09 10:08:10,194 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 10:08:10,195 INFO L435 NwaCegarLoop]: 512 mSDtfsCounter, 382 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 10:08:10,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 512 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 10:08:10,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9543 states. [2025-01-09 10:08:10,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9543 to 9543. [2025-01-09 10:08:10,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9543 states, 7208 states have (on average 1.5713096559378468) internal successors, (11326), 7250 states have internal predecessors, (11326), 2286 states have call successors, (2286), 48 states have call predecessors, (2286), 48 states have return successors, (2286), 2244 states have call predecessors, (2286), 2286 states have call successors, (2286) [2025-01-09 10:08:10,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9543 states to 9543 states and 15898 transitions. [2025-01-09 10:08:10,886 INFO L78 Accepts]: Start accepts. Automaton has 9543 states and 15898 transitions. Word has length 554 [2025-01-09 10:08:10,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 10:08:10,887 INFO L471 AbstractCegarLoop]: Abstraction has 9543 states and 15898 transitions. [2025-01-09 10:08:10,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:10,887 INFO L276 IsEmpty]: Start isEmpty. Operand 9543 states and 15898 transitions. [2025-01-09 10:08:10,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2025-01-09 10:08:10,900 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:08:10,900 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:08:10,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 10:08:10,900 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:08:10,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:08:10,901 INFO L85 PathProgramCache]: Analyzing trace with hash 930471515, now seen corresponding path program 1 times [2025-01-09 10:08:10,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:08:10,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731097368] [2025-01-09 10:08:10,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:10,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:08:10,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 555 statements into 1 equivalence classes. [2025-01-09 10:08:10,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 555 of 555 statements. [2025-01-09 10:08:10,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:10,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:11,625 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2025-01-09 10:08:11,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:08:11,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731097368] [2025-01-09 10:08:11,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731097368] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 10:08:11,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 10:08:11,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 10:08:11,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884565748] [2025-01-09 10:08:11,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 10:08:11,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 10:08:11,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:08:11,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 10:08:11,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:08:11,628 INFO L87 Difference]: Start difference. First operand 9543 states and 15898 transitions. Second operand has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:14,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:08:14,381 INFO L93 Difference]: Finished difference Result 54967 states and 91513 transitions. [2025-01-09 10:08:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 10:08:14,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 555 [2025-01-09 10:08:14,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:08:14,591 INFO L225 Difference]: With dead ends: 54967 [2025-01-09 10:08:14,592 INFO L226 Difference]: Without dead ends: 45427 [2025-01-09 10:08:14,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2025-01-09 10:08:14,641 INFO L435 NwaCegarLoop]: 682 mSDtfsCounter, 1775 mSDsluCounter, 2446 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-09 10:08:14,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1775 Valid, 3128 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-09 10:08:14,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45427 states. [2025-01-09 10:08:17,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45427 to 45311. [2025-01-09 10:08:17,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45311 states, 34564 states have (on average 1.5738340469853027) internal successors, (54398), 34786 states have internal predecessors, (54398), 10506 states have call successors, (10506), 240 states have call predecessors, (10506), 240 states have return successors, (10506), 10284 states have call predecessors, (10506), 10506 states have call successors, (10506) [2025-01-09 10:08:17,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45311 states to 45311 states and 75410 transitions. [2025-01-09 10:08:17,700 INFO L78 Accepts]: Start accepts. Automaton has 45311 states and 75410 transitions. Word has length 555 [2025-01-09 10:08:17,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 10:08:17,702 INFO L471 AbstractCegarLoop]: Abstraction has 45311 states and 75410 transitions. [2025-01-09 10:08:17,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:17,703 INFO L276 IsEmpty]: Start isEmpty. Operand 45311 states and 75410 transitions. [2025-01-09 10:08:17,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2025-01-09 10:08:17,754 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:08:17,755 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:08:17,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 10:08:17,755 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:08:17,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:08:17,756 INFO L85 PathProgramCache]: Analyzing trace with hash -98887783, now seen corresponding path program 1 times [2025-01-09 10:08:17,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:08:17,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716211552] [2025-01-09 10:08:17,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:17,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:08:17,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 555 statements into 1 equivalence classes. [2025-01-09 10:08:17,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 555 of 555 statements. [2025-01-09 10:08:17,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:17,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:18,642 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 18 proven. 222 refuted. 0 times theorem prover too weak. 12720 trivial. 0 not checked. [2025-01-09 10:08:18,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:08:18,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716211552] [2025-01-09 10:08:18,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716211552] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 10:08:18,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283826310] [2025-01-09 10:08:18,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:18,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:08:18,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 10:08:18,648 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 10:08:18,650 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 10:08:18,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 555 statements into 1 equivalence classes. [2025-01-09 10:08:19,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 555 of 555 statements. [2025-01-09 10:08:19,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:19,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:19,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 10:08:19,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 10:08:19,745 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2025-01-09 10:08:19,745 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 10:08:19,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283826310] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 10:08:19,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 10:08:19,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-01-09 10:08:19,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963143528] [2025-01-09 10:08:19,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 10:08:19,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 10:08:19,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:08:19,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 10:08:19,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-09 10:08:19,747 INFO L87 Difference]: Start difference. First operand 45311 states and 75410 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:23,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:08:23,328 INFO L93 Difference]: Finished difference Result 143555 states and 238848 transitions. [2025-01-09 10:08:23,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 10:08:23,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 555 [2025-01-09 10:08:23,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:08:23,811 INFO L225 Difference]: With dead ends: 143555 [2025-01-09 10:08:23,812 INFO L226 Difference]: Without dead ends: 98247 [2025-01-09 10:08:23,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-09 10:08:23,970 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 1233 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 10:08:23,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 1656 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 10:08:24,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98247 states. [2025-01-09 10:08:29,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98247 to 97921. [2025-01-09 10:08:29,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97921 states, 77414 states have (on average 1.5914692432893276) internal successors, (123202), 77956 states have internal predecessors, (123202), 19946 states have call successors, (19946), 560 states have call predecessors, (19946), 560 states have return successors, (19946), 19404 states have call predecessors, (19946), 19946 states have call successors, (19946) [2025-01-09 10:08:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97921 states to 97921 states and 163094 transitions. [2025-01-09 10:08:29,796 INFO L78 Accepts]: Start accepts. Automaton has 97921 states and 163094 transitions. Word has length 555 [2025-01-09 10:08:29,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 10:08:29,797 INFO L471 AbstractCegarLoop]: Abstraction has 97921 states and 163094 transitions. [2025-01-09 10:08:29,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:29,798 INFO L276 IsEmpty]: Start isEmpty. Operand 97921 states and 163094 transitions. [2025-01-09 10:08:29,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2025-01-09 10:08:29,886 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:08:29,886 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:08:29,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-09 10:08:30,086 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 10:08:30,087 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:08:30,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:08:30,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2009930341, now seen corresponding path program 1 times [2025-01-09 10:08:30,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:08:30,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26647518] [2025-01-09 10:08:30,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:30,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:08:30,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 555 statements into 1 equivalence classes. [2025-01-09 10:08:30,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 555 of 555 statements. [2025-01-09 10:08:30,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:30,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 18 proven. 222 refuted. 0 times theorem prover too weak. 12720 trivial. 0 not checked. [2025-01-09 10:08:30,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:08:30,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26647518] [2025-01-09 10:08:30,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26647518] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 10:08:30,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254763926] [2025-01-09 10:08:30,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:30,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 10:08:30,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 10:08:30,784 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 10:08:30,787 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 10:08:31,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 555 statements into 1 equivalence classes. [2025-01-09 10:08:31,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 555 of 555 statements. [2025-01-09 10:08:31,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:31,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:31,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 10:08:31,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 10:08:31,493 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 6288 proven. 144 refuted. 0 times theorem prover too weak. 6528 trivial. 0 not checked. [2025-01-09 10:08:31,493 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 10:08:31,932 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 96 proven. 144 refuted. 0 times theorem prover too weak. 12720 trivial. 0 not checked. [2025-01-09 10:08:31,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254763926] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 10:08:31,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 10:08:31,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2025-01-09 10:08:31,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507017561] [2025-01-09 10:08:31,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 10:08:31,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 10:08:31,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:08:31,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 10:08:31,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-01-09 10:08:31,937 INFO L87 Difference]: Start difference. First operand 97921 states and 163094 transitions. Second operand has 13 states, 13 states have (on average 23.846153846153847) internal successors, (310), 13 states have internal predecessors, (310), 4 states have call successors, (210), 2 states have call predecessors, (210), 4 states have return successors, (211), 4 states have call predecessors, (211), 4 states have call successors, (211) [2025-01-09 10:08:38,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:08:38,321 INFO L93 Difference]: Finished difference Result 198599 states and 328696 transitions. [2025-01-09 10:08:38,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-09 10:08:38,322 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 23.846153846153847) internal successors, (310), 13 states have internal predecessors, (310), 4 states have call successors, (210), 2 states have call predecessors, (210), 4 states have return successors, (211), 4 states have call predecessors, (211), 4 states have call successors, (211) Word has length 555 [2025-01-09 10:08:38,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:08:38,839 INFO L225 Difference]: With dead ends: 198599 [2025-01-09 10:08:38,840 INFO L226 Difference]: Without dead ends: 100681 [2025-01-09 10:08:39,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1137 GetRequests, 1106 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2025-01-09 10:08:39,020 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 1934 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 3329 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-09 10:08:39,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1967 Valid, 3329 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-09 10:08:39,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100681 states. [2025-01-09 10:08:42,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100681 to 60094. [2025-01-09 10:08:43,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60094 states, 47372 states have (on average 1.577851895634552) internal successors, (74746), 47697 states have internal predecessors, (74746), 12141 states have call successors, (12141), 580 states have call predecessors, (12141), 580 states have return successors, (12141), 11816 states have call predecessors, (12141), 12141 states have call successors, (12141) [2025-01-09 10:08:43,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60094 states to 60094 states and 99028 transitions. [2025-01-09 10:08:43,465 INFO L78 Accepts]: Start accepts. Automaton has 60094 states and 99028 transitions. Word has length 555 [2025-01-09 10:08:43,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 10:08:43,467 INFO L471 AbstractCegarLoop]: Abstraction has 60094 states and 99028 transitions. [2025-01-09 10:08:43,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 23.846153846153847) internal successors, (310), 13 states have internal predecessors, (310), 4 states have call successors, (210), 2 states have call predecessors, (210), 4 states have return successors, (211), 4 states have call predecessors, (211), 4 states have call successors, (211) [2025-01-09 10:08:43,468 INFO L276 IsEmpty]: Start isEmpty. Operand 60094 states and 99028 transitions. [2025-01-09 10:08:43,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2025-01-09 10:08:43,525 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 10:08:43,525 INFO L218 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:08:43,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-09 10:08:43,729 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 10:08:43,730 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 10:08:43,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 10:08:43,731 INFO L85 PathProgramCache]: Analyzing trace with hash -125179354, now seen corresponding path program 1 times [2025-01-09 10:08:43,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 10:08:43,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96675506] [2025-01-09 10:08:43,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 10:08:43,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 10:08:43,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 557 statements into 1 equivalence classes. [2025-01-09 10:08:43,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 557 of 557 statements. [2025-01-09 10:08:43,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 10:08:43,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 10:08:45,036 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2025-01-09 10:08:45,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 10:08:45,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96675506] [2025-01-09 10:08:45,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96675506] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 10:08:45,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 10:08:45,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 10:08:45,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981647005] [2025-01-09 10:08:45,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 10:08:45,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 10:08:45,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 10:08:45,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 10:08:45,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 10:08:45,040 INFO L87 Difference]: Start difference. First operand 60094 states and 99028 transitions. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2025-01-09 10:08:49,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 10:08:49,724 INFO L93 Difference]: Finished difference Result 159550 states and 262755 transitions. [2025-01-09 10:08:49,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 10:08:49,725 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 557 [2025-01-09 10:08:49,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 10:08:50,208 INFO L225 Difference]: With dead ends: 159550 [2025-01-09 10:08:50,208 INFO L226 Difference]: Without dead ends: 99606 [2025-01-09 10:08:50,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2025-01-09 10:08:50,390 INFO L435 NwaCegarLoop]: 685 mSDtfsCounter, 1520 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 3639 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-09 10:08:50,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 3639 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-09 10:08:50,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99606 states.