./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-90.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_operatoramount_amount500_file-90.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 01664cc77fe0f94aba93d78be3bbb8d6dfcad417fd9d550a500a598597cc5b39 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 14:51:54,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 14:51:54,166 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 14:51:54,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 14:51:54,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 14:51:54,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 14:51:54,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 14:51:54,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 14:51:54,200 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 14:51:54,201 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 14:51:54,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 14:51:54,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 14:51:54,202 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 14:51:54,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 14:51:54,202 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 14:51:54,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 14:51:54,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 14:51:54,203 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 14:51:54,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 14:51:54,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 14:51:54,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 14:51:54,203 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 14:51:54,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 14:51:54,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 14:51:54,203 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 14:51:54,203 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 14:51:54,203 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 14:51:54,203 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 14:51:54,203 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 14:51:54,203 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:51:54,204 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:51:54,204 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:51:54,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:51:54,204 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 14:51:54,204 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 14:51:54,205 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 14:51:54,205 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 14:51:54,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:51:54,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 14:51:54,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 14:51:54,205 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 14:51:54,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 14:51:54,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 14:51:54,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 14:51:54,205 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 14:51:54,205 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 14:51:54,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 14:51:54,205 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 14:51:54,205 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 -> 01664cc77fe0f94aba93d78be3bbb8d6dfcad417fd9d550a500a598597cc5b39 [2025-01-09 14:51:54,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 14:51:54,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 14:51:54,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 14:51:54,489 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 14:51:54,489 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 14:51:54,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-90.i [2025-01-09 14:51:55,696 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eef8cef1c/61c259a54be94ab28a29c8adb6a3d8d4/FLAGab81a3e9c [2025-01-09 14:51:56,021 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 14:51:56,022 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-90.i [2025-01-09 14:51:56,041 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eef8cef1c/61c259a54be94ab28a29c8adb6a3d8d4/FLAGab81a3e9c [2025-01-09 14:51:56,279 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eef8cef1c/61c259a54be94ab28a29c8adb6a3d8d4 [2025-01-09 14:51:56,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 14:51:56,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 14:51:56,287 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 14:51:56,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 14:51:56,290 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 14:51:56,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:56,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6455038e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56, skipping insertion in model container [2025-01-09 14:51:56,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:56,322 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 14:51:56,441 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-90.i[916,929] [2025-01-09 14:51:56,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:51:56,666 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 14:51:56,676 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-90.i[916,929] [2025-01-09 14:51:56,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 14:51:56,772 INFO L204 MainTranslator]: Completed translation [2025-01-09 14:51:56,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56 WrapperNode [2025-01-09 14:51:56,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 14:51:56,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 14:51:56,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 14:51:56,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 14:51:56,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:56,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:56,874 INFO L138 Inliner]: procedures = 26, calls = 99, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 700 [2025-01-09 14:51:56,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 14:51:56,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 14:51:56,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 14:51:56,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 14:51:56,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:56,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:56,906 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:56,999 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 14:51:56,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:57,000 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:57,036 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:57,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:57,048 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:57,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:57,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:57,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 14:51:57,085 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 14:51:57,086 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 14:51:57,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 14:51:57,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (1/1) ... [2025-01-09 14:51:57,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 14:51:57,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:51:57,124 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 14:51:57,135 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 14:51:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 14:51:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 14:51:57,155 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 14:51:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 14:51:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 14:51:57,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 14:51:57,276 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 14:51:57,278 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 14:51:58,259 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2025-01-09 14:51:58,259 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 14:51:58,276 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 14:51:58,277 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 14:51:58,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:51:58 BoogieIcfgContainer [2025-01-09 14:51:58,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 14:51:58,278 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 14:51:58,279 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 14:51:58,282 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 14:51:58,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 02:51:56" (1/3) ... [2025-01-09 14:51:58,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2972c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:51:58, skipping insertion in model container [2025-01-09 14:51:58,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 02:51:56" (2/3) ... [2025-01-09 14:51:58,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2972c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 02:51:58, skipping insertion in model container [2025-01-09 14:51:58,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 02:51:58" (3/3) ... [2025-01-09 14:51:58,283 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-90.i [2025-01-09 14:51:58,293 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 14:51:58,295 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-90.i that has 2 procedures, 288 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 14:51:58,340 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 14:51:58,350 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;@57d9fba6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 14:51:58,351 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 14:51:58,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 288 states, 199 states have (on average 1.5326633165829147) internal successors, (305), 200 states have internal predecessors, (305), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2025-01-09 14:51:58,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2025-01-09 14:51:58,370 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:51:58,371 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:58,371 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:51:58,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:51:58,374 INFO L85 PathProgramCache]: Analyzing trace with hash -973723580, now seen corresponding path program 1 times [2025-01-09 14:51:58,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:51:58,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158341589] [2025-01-09 14:51:58,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:51:58,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:51:58,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 565 statements into 1 equivalence classes. [2025-01-09 14:51:58,744 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 565 of 565 statements. [2025-01-09 14:51:58,745 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:51:58,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:51:59,273 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2025-01-09 14:51:59,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:51:59,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158341589] [2025-01-09 14:51:59,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158341589] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:51:59,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:51:59,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 14:51:59,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798630948] [2025-01-09 14:51:59,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:51:59,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 14:51:59,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:51:59,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 14:51:59,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 14:51:59,301 INFO L87 Difference]: Start difference. First operand has 288 states, 199 states have (on average 1.5326633165829147) internal successors, (305), 200 states have internal predecessors, (305), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2025-01-09 14:51:59,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:51:59,467 INFO L93 Difference]: Finished difference Result 848 states and 1586 transitions. [2025-01-09 14:51:59,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 14:51:59,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 565 [2025-01-09 14:51:59,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:51:59,483 INFO L225 Difference]: With dead ends: 848 [2025-01-09 14:51:59,483 INFO L226 Difference]: Without dead ends: 563 [2025-01-09 14:51:59,490 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 14:51:59,493 INFO L435 NwaCegarLoop]: 736 mSDtfsCounter, 436 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 14:51:59,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 1192 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 14:51:59,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2025-01-09 14:51:59,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 318. [2025-01-09 14:51:59,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 230 states have (on average 1.5347826086956522) internal successors, (353), 230 states have internal predecessors, (353), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2025-01-09 14:51:59,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 525 transitions. [2025-01-09 14:51:59,587 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 525 transitions. Word has length 565 [2025-01-09 14:51:59,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:51:59,592 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 525 transitions. [2025-01-09 14:51:59,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2025-01-09 14:51:59,592 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 525 transitions. [2025-01-09 14:51:59,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2025-01-09 14:51:59,605 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:51:59,606 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:59,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 14:51:59,607 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:51:59,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:51:59,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1397370302, now seen corresponding path program 1 times [2025-01-09 14:51:59,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:51:59,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10157849] [2025-01-09 14:51:59,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:51:59,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:51:59,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 565 statements into 1 equivalence classes. [2025-01-09 14:51:59,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 565 of 565 statements. [2025-01-09 14:51:59,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:51:59,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:01,068 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2025-01-09 14:52:01,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:52:01,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10157849] [2025-01-09 14:52:01,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10157849] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:52:01,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:52:01,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 14:52:01,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230265508] [2025-01-09 14:52:01,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:52:01,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 14:52:01,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:52:01,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 14:52:01,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 14:52:01,074 INFO L87 Difference]: Start difference. First operand 318 states and 525 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2025-01-09 14:52:01,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:52:01,743 INFO L93 Difference]: Finished difference Result 973 states and 1599 transitions. [2025-01-09 14:52:01,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 14:52:01,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 565 [2025-01-09 14:52:01,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:52:01,752 INFO L225 Difference]: With dead ends: 973 [2025-01-09 14:52:01,753 INFO L226 Difference]: Without dead ends: 658 [2025-01-09 14:52:01,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-09 14:52:01,755 INFO L435 NwaCegarLoop]: 476 mSDtfsCounter, 750 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 14:52:01,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1978 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 14:52:01,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2025-01-09 14:52:01,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 553. [2025-01-09 14:52:01,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 454 states have (on average 1.5903083700440528) internal successors, (722), 455 states have internal predecessors, (722), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 95 states have call predecessors, (96), 96 states have call successors, (96) [2025-01-09 14:52:01,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 914 transitions. [2025-01-09 14:52:01,822 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 914 transitions. Word has length 565 [2025-01-09 14:52:01,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:52:01,823 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 914 transitions. [2025-01-09 14:52:01,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2025-01-09 14:52:01,828 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 914 transitions. [2025-01-09 14:52:01,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2025-01-09 14:52:01,839 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:52:01,839 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:01,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 14:52:01,839 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:52:01,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:52:01,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1868237696, now seen corresponding path program 1 times [2025-01-09 14:52:01,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:52:01,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244958117] [2025-01-09 14:52:01,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:52:01,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:52:01,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 565 statements into 1 equivalence classes. [2025-01-09 14:52:01,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 565 of 565 statements. [2025-01-09 14:52:01,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:52:01,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:02,607 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2025-01-09 14:52:02,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:52:02,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244958117] [2025-01-09 14:52:02,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244958117] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:52:02,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:52:02,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 14:52:02,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233086143] [2025-01-09 14:52:02,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:52:02,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 14:52:02,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:52:02,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 14:52:02,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 14:52:02,613 INFO L87 Difference]: Start difference. First operand 553 states and 914 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2025-01-09 14:52:02,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:52:02,699 INFO L93 Difference]: Finished difference Result 1593 states and 2635 transitions. [2025-01-09 14:52:02,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 14:52:02,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 565 [2025-01-09 14:52:02,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:52:02,709 INFO L225 Difference]: With dead ends: 1593 [2025-01-09 14:52:02,710 INFO L226 Difference]: Without dead ends: 1043 [2025-01-09 14:52:02,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 14:52:02,712 INFO L435 NwaCegarLoop]: 727 mSDtfsCounter, 451 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 14:52:02,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1188 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 14:52:02,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2025-01-09 14:52:02,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 587. [2025-01-09 14:52:02,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 488 states have (on average 1.5942622950819672) internal successors, (778), 489 states have internal predecessors, (778), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 95 states have call predecessors, (96), 96 states have call successors, (96) [2025-01-09 14:52:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 970 transitions. [2025-01-09 14:52:02,782 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 970 transitions. Word has length 565 [2025-01-09 14:52:02,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:52:02,784 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 970 transitions. [2025-01-09 14:52:02,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2025-01-09 14:52:02,784 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 970 transitions. [2025-01-09 14:52:02,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2025-01-09 14:52:02,795 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:52:02,795 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:02,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 14:52:02,795 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:52:02,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:52:02,796 INFO L85 PathProgramCache]: Analyzing trace with hash -963641216, now seen corresponding path program 1 times [2025-01-09 14:52:02,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:52:02,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85603952] [2025-01-09 14:52:02,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:52:02,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:52:02,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 565 statements into 1 equivalence classes. [2025-01-09 14:52:03,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 565 of 565 statements. [2025-01-09 14:52:03,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:52:03,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:04,089 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2025-01-09 14:52:04,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:52:04,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85603952] [2025-01-09 14:52:04,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85603952] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:52:04,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:52:04,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 14:52:04,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957244357] [2025-01-09 14:52:04,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:52:04,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 14:52:04,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:52:04,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 14:52:04,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 14:52:04,091 INFO L87 Difference]: Start difference. First operand 587 states and 970 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2025-01-09 14:52:04,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:52:04,462 INFO L93 Difference]: Finished difference Result 1733 states and 2873 transitions. [2025-01-09 14:52:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 14:52:04,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 565 [2025-01-09 14:52:04,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:52:04,469 INFO L225 Difference]: With dead ends: 1733 [2025-01-09 14:52:04,469 INFO L226 Difference]: Without dead ends: 1149 [2025-01-09 14:52:04,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 14:52:04,471 INFO L435 NwaCegarLoop]: 465 mSDtfsCounter, 418 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 14:52:04,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1386 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 14:52:04,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2025-01-09 14:52:04,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 736. [2025-01-09 14:52:04,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 550 states have (on average 1.538181818181818) internal successors, (846), 551 states have internal predecessors, (846), 182 states have call successors, (182), 3 states have call predecessors, (182), 3 states have return successors, (182), 181 states have call predecessors, (182), 182 states have call successors, (182) [2025-01-09 14:52:04,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1210 transitions. [2025-01-09 14:52:04,550 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1210 transitions. Word has length 565 [2025-01-09 14:52:04,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:52:04,551 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 1210 transitions. [2025-01-09 14:52:04,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2025-01-09 14:52:04,552 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1210 transitions. [2025-01-09 14:52:04,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2025-01-09 14:52:04,557 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:52:04,558 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:04,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 14:52:04,558 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:52:04,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:52:04,559 INFO L85 PathProgramCache]: Analyzing trace with hash 581556705, now seen corresponding path program 1 times [2025-01-09 14:52:04,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:52:04,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049472620] [2025-01-09 14:52:04,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:52:04,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:52:04,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 566 statements into 1 equivalence classes. [2025-01-09 14:52:04,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 566 of 566 statements. [2025-01-09 14:52:04,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:52:04,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:06,131 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2025-01-09 14:52:06,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:52:06,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049472620] [2025-01-09 14:52:06,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049472620] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:52:06,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:52:06,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 14:52:06,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054920825] [2025-01-09 14:52:06,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:52:06,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 14:52:06,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:52:06,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 14:52:06,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 14:52:06,135 INFO L87 Difference]: Start difference. First operand 736 states and 1210 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2025-01-09 14:52:06,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:52:06,490 INFO L93 Difference]: Finished difference Result 1873 states and 3099 transitions. [2025-01-09 14:52:06,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 14:52:06,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 566 [2025-01-09 14:52:06,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:52:06,498 INFO L225 Difference]: With dead ends: 1873 [2025-01-09 14:52:06,498 INFO L226 Difference]: Without dead ends: 1289 [2025-01-09 14:52:06,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-01-09 14:52:06,500 INFO L435 NwaCegarLoop]: 453 mSDtfsCounter, 274 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 14:52:06,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 1971 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 14:52:06,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2025-01-09 14:52:06,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1075. [2025-01-09 14:52:06,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 889 states have (on average 1.6017997750281214) internal successors, (1424), 890 states have internal predecessors, (1424), 182 states have call successors, (182), 3 states have call predecessors, (182), 3 states have return successors, (182), 181 states have call predecessors, (182), 182 states have call successors, (182) [2025-01-09 14:52:06,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1788 transitions. [2025-01-09 14:52:06,618 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1788 transitions. Word has length 566 [2025-01-09 14:52:06,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:52:06,619 INFO L471 AbstractCegarLoop]: Abstraction has 1075 states and 1788 transitions. [2025-01-09 14:52:06,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2025-01-09 14:52:06,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1788 transitions. [2025-01-09 14:52:06,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2025-01-09 14:52:06,630 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:52:06,630 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:06,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 14:52:06,630 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:52:06,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:52:06,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1896119009, now seen corresponding path program 1 times [2025-01-09 14:52:06,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:52:06,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172894132] [2025-01-09 14:52:06,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:52:06,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:52:06,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 566 statements into 1 equivalence classes. [2025-01-09 14:52:10,246 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 566 of 566 statements. [2025-01-09 14:52:10,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:52:10,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:10,775 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 114 proven. 141 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2025-01-09 14:52:10,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:52:10,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172894132] [2025-01-09 14:52:10,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172894132] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 14:52:10,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70962057] [2025-01-09 14:52:10,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:52:10,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 14:52:10,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:52:10,777 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 14:52:10,779 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 14:52:10,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 566 statements into 1 equivalence classes. [2025-01-09 14:52:11,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 566 of 566 statements. [2025-01-09 14:52:11,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:52:11,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:11,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 14:52:11,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:52:11,421 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 3973 proven. 39 refuted. 0 times theorem prover too weak. 10608 trivial. 0 not checked. [2025-01-09 14:52:11,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 14:52:11,782 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 216 proven. 39 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2025-01-09 14:52:11,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70962057] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 14:52:11,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 14:52:11,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 10 [2025-01-09 14:52:11,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367900972] [2025-01-09 14:52:11,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 14:52:11,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 14:52:11,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:52:11,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 14:52:11,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-01-09 14:52:11,785 INFO L87 Difference]: Start difference. First operand 1075 states and 1788 transitions. Second operand has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 states have internal predecessors, (188), 4 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (148), 4 states have call predecessors, (148), 4 states have call successors, (148) [2025-01-09 14:52:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:52:12,680 INFO L93 Difference]: Finished difference Result 2044 states and 3395 transitions. [2025-01-09 14:52:12,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 14:52:12,681 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 states have internal predecessors, (188), 4 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (148), 4 states have call predecessors, (148), 4 states have call successors, (148) Word has length 566 [2025-01-09 14:52:12,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:52:12,689 INFO L225 Difference]: With dead ends: 2044 [2025-01-09 14:52:12,690 INFO L226 Difference]: Without dead ends: 1121 [2025-01-09 14:52:12,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1148 GetRequests, 1129 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2025-01-09 14:52:12,693 INFO L435 NwaCegarLoop]: 530 mSDtfsCounter, 1276 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 14:52:12,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 1679 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 14:52:12,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2025-01-09 14:52:12,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 752. [2025-01-09 14:52:12,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 562 states have (on average 1.49644128113879) internal successors, (841), 563 states have internal predecessors, (841), 182 states have call successors, (182), 7 states have call predecessors, (182), 7 states have return successors, (182), 181 states have call predecessors, (182), 182 states have call successors, (182) [2025-01-09 14:52:12,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1205 transitions. [2025-01-09 14:52:12,748 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1205 transitions. Word has length 566 [2025-01-09 14:52:12,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:52:12,748 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1205 transitions. [2025-01-09 14:52:12,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 states have internal predecessors, (188), 4 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (148), 4 states have call predecessors, (148), 4 states have call successors, (148) [2025-01-09 14:52:12,749 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1205 transitions. [2025-01-09 14:52:12,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2025-01-09 14:52:12,753 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:52:12,753 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:12,763 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 14:52:12,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 14:52:12,954 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:52:12,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:52:12,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2096448349, now seen corresponding path program 1 times [2025-01-09 14:52:12,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:52:12,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334575305] [2025-01-09 14:52:12,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:52:12,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:52:12,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 567 statements into 1 equivalence classes. [2025-01-09 14:52:13,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 567 of 567 statements. [2025-01-09 14:52:13,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:52:13,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2025-01-09 14:52:14,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:52:14,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334575305] [2025-01-09 14:52:14,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334575305] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 14:52:14,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 14:52:14,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 14:52:14,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417670705] [2025-01-09 14:52:14,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 14:52:14,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 14:52:14,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:52:14,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 14:52:14,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 14:52:14,260 INFO L87 Difference]: Start difference. First operand 752 states and 1205 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2025-01-09 14:52:15,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:52:15,838 INFO L93 Difference]: Finished difference Result 3496 states and 5623 transitions. [2025-01-09 14:52:15,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 14:52:15,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 567 [2025-01-09 14:52:15,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:52:15,851 INFO L225 Difference]: With dead ends: 3496 [2025-01-09 14:52:15,851 INFO L226 Difference]: Without dead ends: 2904 [2025-01-09 14:52:15,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2025-01-09 14:52:15,854 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 2339 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-01-09 14:52:15,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2339 Valid, 2033 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-01-09 14:52:15,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2025-01-09 14:52:15,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1645. [2025-01-09 14:52:15,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1370 states have (on average 1.5481751824817518) internal successors, (2121), 1373 states have internal predecessors, (2121), 263 states have call successors, (263), 11 states have call predecessors, (263), 11 states have return successors, (263), 260 states have call predecessors, (263), 263 states have call successors, (263) [2025-01-09 14:52:15,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2647 transitions. [2025-01-09 14:52:15,954 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2647 transitions. Word has length 567 [2025-01-09 14:52:15,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:52:15,954 INFO L471 AbstractCegarLoop]: Abstraction has 1645 states and 2647 transitions. [2025-01-09 14:52:15,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2025-01-09 14:52:15,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2647 transitions. [2025-01-09 14:52:15,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2025-01-09 14:52:15,959 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:52:15,959 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:15,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 14:52:15,959 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:52:15,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:52:15,960 INFO L85 PathProgramCache]: Analyzing trace with hash -883956643, now seen corresponding path program 1 times [2025-01-09 14:52:15,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:52:15,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607748147] [2025-01-09 14:52:15,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:52:15,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:52:15,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 567 statements into 1 equivalence classes. [2025-01-09 14:52:18,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 567 of 567 statements. [2025-01-09 14:52:18,081 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:52:18,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:18,367 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 210 proven. 45 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2025-01-09 14:52:18,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:52:18,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607748147] [2025-01-09 14:52:18,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607748147] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 14:52:18,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786367325] [2025-01-09 14:52:18,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:52:18,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 14:52:18,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:52:18,370 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 14:52:18,374 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 14:52:18,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 567 statements into 1 equivalence classes. [2025-01-09 14:52:18,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 567 of 567 statements. [2025-01-09 14:52:18,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:52:18,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:18,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 14:52:18,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:52:18,878 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 4425 proven. 45 refuted. 0 times theorem prover too weak. 10150 trivial. 0 not checked. [2025-01-09 14:52:18,879 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 14:52:19,226 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 210 proven. 45 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2025-01-09 14:52:19,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786367325] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 14:52:19,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 14:52:19,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-01-09 14:52:19,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664047799] [2025-01-09 14:52:19,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 14:52:19,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 14:52:19,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:52:19,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 14:52:19,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 14:52:19,230 INFO L87 Difference]: Start difference. First operand 1645 states and 2647 transitions. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 2 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 2 states have call predecessors, (102), 2 states have call successors, (102) [2025-01-09 14:52:19,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:52:19,836 INFO L93 Difference]: Finished difference Result 3156 states and 5069 transitions. [2025-01-09 14:52:19,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 14:52:19,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 2 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 2 states have call predecessors, (102), 2 states have call successors, (102) Word has length 567 [2025-01-09 14:52:19,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:52:19,858 INFO L225 Difference]: With dead ends: 3156 [2025-01-09 14:52:19,858 INFO L226 Difference]: Without dead ends: 1675 [2025-01-09 14:52:19,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1141 GetRequests, 1131 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2025-01-09 14:52:19,861 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 579 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 14:52:19,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 940 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 14:52:19,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2025-01-09 14:52:20,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1650. [2025-01-09 14:52:20,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1650 states, 1375 states have (on average 1.528) internal successors, (2101), 1378 states have internal predecessors, (2101), 261 states have call successors, (261), 13 states have call predecessors, (261), 13 states have return successors, (261), 258 states have call predecessors, (261), 261 states have call successors, (261) [2025-01-09 14:52:20,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 2623 transitions. [2025-01-09 14:52:20,078 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 2623 transitions. Word has length 567 [2025-01-09 14:52:20,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:52:20,079 INFO L471 AbstractCegarLoop]: Abstraction has 1650 states and 2623 transitions. [2025-01-09 14:52:20,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 2 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 2 states have call predecessors, (102), 2 states have call successors, (102) [2025-01-09 14:52:20,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 2623 transitions. [2025-01-09 14:52:20,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2025-01-09 14:52:20,087 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:52:20,087 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:20,099 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 14:52:20,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 14:52:20,288 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:52:20,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:52:20,289 INFO L85 PathProgramCache]: Analyzing trace with hash -682132709, now seen corresponding path program 1 times [2025-01-09 14:52:20,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:52:20,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688884983] [2025-01-09 14:52:20,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:52:20,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:52:20,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 567 statements into 1 equivalence classes. [2025-01-09 14:52:21,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 567 of 567 statements. [2025-01-09 14:52:21,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:52:21,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 204 proven. 51 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2025-01-09 14:52:22,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:52:22,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688884983] [2025-01-09 14:52:22,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688884983] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 14:52:22,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018111754] [2025-01-09 14:52:22,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:52:22,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 14:52:22,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:52:22,293 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 14:52:22,296 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 14:52:22,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 567 statements into 1 equivalence classes. [2025-01-09 14:52:22,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 567 of 567 statements. [2025-01-09 14:52:22,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:52:22,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:22,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 1357 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 14:52:22,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:52:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 4845 proven. 51 refuted. 0 times theorem prover too weak. 9724 trivial. 0 not checked. [2025-01-09 14:52:23,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 14:52:23,489 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 204 proven. 51 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2025-01-09 14:52:23,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018111754] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 14:52:23,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 14:52:23,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2025-01-09 14:52:23,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525019048] [2025-01-09 14:52:23,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 14:52:23,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 14:52:23,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:52:23,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 14:52:23,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2025-01-09 14:52:23,492 INFO L87 Difference]: Start difference. First operand 1650 states and 2623 transitions. Second operand has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 9 states have internal predecessors, (154), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2025-01-09 14:52:24,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:52:24,400 INFO L93 Difference]: Finished difference Result 4664 states and 7400 transitions. [2025-01-09 14:52:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-09 14:52:24,400 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 9 states have internal predecessors, (154), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) Word has length 567 [2025-01-09 14:52:24,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:52:24,414 INFO L225 Difference]: With dead ends: 4664 [2025-01-09 14:52:24,414 INFO L226 Difference]: Without dead ends: 3182 [2025-01-09 14:52:24,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1149 GetRequests, 1130 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2025-01-09 14:52:24,417 INFO L435 NwaCegarLoop]: 362 mSDtfsCounter, 1159 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 14:52:24,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 1268 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 14:52:24,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3182 states. [2025-01-09 14:52:24,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3182 to 1701. [2025-01-09 14:52:24,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1426 states have (on average 1.5315568022440393) internal successors, (2184), 1429 states have internal predecessors, (2184), 259 states have call successors, (259), 15 states have call predecessors, (259), 15 states have return successors, (259), 256 states have call predecessors, (259), 259 states have call successors, (259) [2025-01-09 14:52:24,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2702 transitions. [2025-01-09 14:52:24,586 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2702 transitions. Word has length 567 [2025-01-09 14:52:24,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:52:24,587 INFO L471 AbstractCegarLoop]: Abstraction has 1701 states and 2702 transitions. [2025-01-09 14:52:24,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 9 states have internal predecessors, (154), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2025-01-09 14:52:24,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2702 transitions. [2025-01-09 14:52:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2025-01-09 14:52:24,596 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:52:24,596 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:24,622 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 14:52:24,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 14:52:24,797 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:52:24,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:52:24,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1241095325, now seen corresponding path program 1 times [2025-01-09 14:52:24,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:52:24,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367498500] [2025-01-09 14:52:24,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:52:24,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:52:24,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 567 statements into 1 equivalence classes. [2025-01-09 14:52:26,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 567 of 567 statements. [2025-01-09 14:52:26,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:52:26,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:30,522 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 357 proven. 147 refuted. 0 times theorem prover too weak. 14116 trivial. 0 not checked. [2025-01-09 14:52:30,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:52:30,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367498500] [2025-01-09 14:52:30,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367498500] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 14:52:30,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781028388] [2025-01-09 14:52:30,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:52:30,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 14:52:30,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:52:30,525 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 14:52:30,526 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 14:52:30,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 567 statements into 1 equivalence classes. [2025-01-09 14:52:31,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 567 of 567 statements. [2025-01-09 14:52:31,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:52:31,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:52:31,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 1356 conjuncts, 40 conjuncts are in the unsatisfiable core [2025-01-09 14:52:31,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:52:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 11322 proven. 516 refuted. 0 times theorem prover too weak. 2782 trivial. 0 not checked. [2025-01-09 14:52:35,088 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 14:52:40,448 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 552 proven. 450 refuted. 0 times theorem prover too weak. 13618 trivial. 0 not checked. [2025-01-09 14:52:40,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781028388] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 14:52:40,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 14:52:40,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 23, 21] total 57 [2025-01-09 14:52:40,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603839595] [2025-01-09 14:52:40,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 14:52:40,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2025-01-09 14:52:40,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:52:40,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2025-01-09 14:52:40,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=2684, Unknown=0, NotChecked=0, Total=3192 [2025-01-09 14:52:40,455 INFO L87 Difference]: Start difference. First operand 1701 states and 2702 transitions. Second operand has 57 states, 57 states have (on average 7.526315789473684) internal successors, (429), 57 states have internal predecessors, (429), 19 states have call successors, (258), 8 states have call predecessors, (258), 18 states have return successors, (258), 19 states have call predecessors, (258), 19 states have call successors, (258) [2025-01-09 14:53:06,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:53:06,654 INFO L93 Difference]: Finished difference Result 13785 states and 21605 transitions. [2025-01-09 14:53:06,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2025-01-09 14:53:06,655 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 7.526315789473684) internal successors, (429), 57 states have internal predecessors, (429), 19 states have call successors, (258), 8 states have call predecessors, (258), 18 states have return successors, (258), 19 states have call predecessors, (258), 19 states have call successors, (258) Word has length 567 [2025-01-09 14:53:06,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:53:06,703 INFO L225 Difference]: With dead ends: 13785 [2025-01-09 14:53:06,705 INFO L226 Difference]: Without dead ends: 12256 [2025-01-09 14:53:06,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1371 GetRequests, 1136 SyntacticMatches, 0 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22473 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=10212, Invalid=45720, Unknown=0, NotChecked=0, Total=55932 [2025-01-09 14:53:06,723 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 15323 mSDsluCounter, 7908 mSDsCounter, 0 mSdLazyCounter, 9717 mSolverCounterSat, 7103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15352 SdHoareTripleChecker+Valid, 8415 SdHoareTripleChecker+Invalid, 16820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7103 IncrementalHoareTripleChecker+Valid, 9717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2025-01-09 14:53:06,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15352 Valid, 8415 Invalid, 16820 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7103 Valid, 9717 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2025-01-09 14:53:06,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12256 states. [2025-01-09 14:53:07,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12256 to 8022. [2025-01-09 14:53:07,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8022 states, 7231 states have (on average 1.5747476144378372) internal successors, (11387), 7249 states have internal predecessors, (11387), 716 states have call successors, (716), 74 states have call predecessors, (716), 74 states have return successors, (716), 698 states have call predecessors, (716), 716 states have call successors, (716) [2025-01-09 14:53:07,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8022 states to 8022 states and 12819 transitions. [2025-01-09 14:53:07,262 INFO L78 Accepts]: Start accepts. Automaton has 8022 states and 12819 transitions. Word has length 567 [2025-01-09 14:53:07,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:53:07,262 INFO L471 AbstractCegarLoop]: Abstraction has 8022 states and 12819 transitions. [2025-01-09 14:53:07,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 7.526315789473684) internal successors, (429), 57 states have internal predecessors, (429), 19 states have call successors, (258), 8 states have call predecessors, (258), 18 states have return successors, (258), 19 states have call predecessors, (258), 19 states have call successors, (258) [2025-01-09 14:53:07,267 INFO L276 IsEmpty]: Start isEmpty. Operand 8022 states and 12819 transitions. [2025-01-09 14:53:07,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2025-01-09 14:53:07,277 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:53:07,277 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:07,293 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 14:53:07,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-01-09 14:53:07,478 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:53:07,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:53:07,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2058743775, now seen corresponding path program 1 times [2025-01-09 14:53:07,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:53:07,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570848085] [2025-01-09 14:53:07,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:53:07,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:53:07,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 567 statements into 1 equivalence classes. [2025-01-09 14:53:09,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 567 of 567 statements. [2025-01-09 14:53:09,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:53:09,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 14:53:09,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [300451385] [2025-01-09 14:53:09,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:53:09,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 14:53:09,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 14:53:09,980 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 14:53:09,982 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 14:53:10,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 567 statements into 1 equivalence classes. [2025-01-09 14:53:10,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 567 of 567 statements. [2025-01-09 14:53:10,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 14:53:10,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 14:53:10,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 1356 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-09 14:53:10,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 14:53:13,775 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 9192 proven. 645 refuted. 0 times theorem prover too weak. 4783 trivial. 0 not checked. [2025-01-09 14:53:13,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 14:53:14,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 14:53:14,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570848085] [2025-01-09 14:53:14,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 14:53:14,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300451385] [2025-01-09 14:53:14,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300451385] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 14:53:14,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-09 14:53:14,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2025-01-09 14:53:14,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815979754] [2025-01-09 14:53:14,659 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-09 14:53:14,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-09 14:53:14,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 14:53:14,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-09 14:53:14,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2025-01-09 14:53:14,661 INFO L87 Difference]: Start difference. First operand 8022 states and 12819 transitions. Second operand has 17 states, 17 states have (on average 9.647058823529411) internal successors, (164), 16 states have internal predecessors, (164), 5 states have call successors, (86), 5 states have call predecessors, (86), 9 states have return successors, (86), 5 states have call predecessors, (86), 5 states have call successors, (86) [2025-01-09 14:53:16,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 14:53:16,040 INFO L93 Difference]: Finished difference Result 16062 states and 25542 transitions. [2025-01-09 14:53:16,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-09 14:53:16,041 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.647058823529411) internal successors, (164), 16 states have internal predecessors, (164), 5 states have call successors, (86), 5 states have call predecessors, (86), 9 states have return successors, (86), 5 states have call predecessors, (86), 5 states have call successors, (86) Word has length 567 [2025-01-09 14:53:16,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 14:53:16,063 INFO L225 Difference]: With dead ends: 16062 [2025-01-09 14:53:16,063 INFO L226 Difference]: Without dead ends: 8246 [2025-01-09 14:53:16,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 635 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=355, Invalid=1051, Unknown=0, NotChecked=0, Total=1406 [2025-01-09 14:53:16,076 INFO L435 NwaCegarLoop]: 359 mSDtfsCounter, 922 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 14:53:16,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1449 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 14:53:16,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8246 states. [2025-01-09 14:53:16,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8246 to 8166. [2025-01-09 14:53:16,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8166 states, 7339 states have (on average 1.5515737838942636) internal successors, (11387), 7357 states have internal predecessors, (11387), 716 states have call successors, (716), 110 states have call predecessors, (716), 110 states have return successors, (716), 698 states have call predecessors, (716), 716 states have call successors, (716) [2025-01-09 14:53:16,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8166 states to 8166 states and 12819 transitions. [2025-01-09 14:53:16,615 INFO L78 Accepts]: Start accepts. Automaton has 8166 states and 12819 transitions. Word has length 567 [2025-01-09 14:53:16,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 14:53:16,616 INFO L471 AbstractCegarLoop]: Abstraction has 8166 states and 12819 transitions. [2025-01-09 14:53:16,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.647058823529411) internal successors, (164), 16 states have internal predecessors, (164), 5 states have call successors, (86), 5 states have call predecessors, (86), 9 states have return successors, (86), 5 states have call predecessors, (86), 5 states have call successors, (86) [2025-01-09 14:53:16,617 INFO L276 IsEmpty]: Start isEmpty. Operand 8166 states and 12819 transitions. [2025-01-09 14:53:16,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2025-01-09 14:53:16,624 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 14:53:16,625 INFO L218 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:16,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 14:53:16,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-01-09 14:53:16,825 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 14:53:16,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 14:53:16,826 INFO L85 PathProgramCache]: Analyzing trace with hash 9355933, now seen corresponding path program 1 times [2025-01-09 14:53:16,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 14:53:16,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393637426] [2025-01-09 14:53:16,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 14:53:16,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 14:53:16,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 567 statements into 1 equivalence classes.