./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/recHanoi02-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc 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/termination-numeric/recHanoi02-1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fc483b08189ee3c98902d05e6dbaf5e8d67294309bb86f0f1cb0c68cd8f4471f --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 13:30:47,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 13:30:47,375 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-06 13:30:47,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 13:30:47,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 13:30:47,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 13:30:47,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 13:30:47,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 13:30:47,395 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 13:30:47,395 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 13:30:47,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 13:30:47,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 13:30:47,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 13:30:47,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 13:30:47,396 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 13:30:47,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 13:30:47,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 13:30:47,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 13:30:47,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 13:30:47,397 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 13:30:47,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 13:30:47,398 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:30:47,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 13:30:47,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 13:30:47,399 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 13:30:47,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 13:30:47,399 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 13:30:47,399 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 13:30:47,399 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 13:30:47,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 13:30:47,399 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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc483b08189ee3c98902d05e6dbaf5e8d67294309bb86f0f1cb0c68cd8f4471f [2025-02-06 13:30:47,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 13:30:47,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 13:30:47,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 13:30:47,607 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 13:30:47,607 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 13:30:47,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/recHanoi02-1.c [2025-02-06 13:30:48,769 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03cb24aeb/1265f5b04788421ab27d8c3c9ceadb4b/FLAGad7fc0f9f [2025-02-06 13:30:49,004 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 13:30:49,004 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-numeric/recHanoi02-1.c [2025-02-06 13:30:49,009 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03cb24aeb/1265f5b04788421ab27d8c3c9ceadb4b/FLAGad7fc0f9f [2025-02-06 13:30:49,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03cb24aeb/1265f5b04788421ab27d8c3c9ceadb4b [2025-02-06 13:30:49,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 13:30:49,346 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 13:30:49,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 13:30:49,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 13:30:49,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 13:30:49,351 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92de2c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49, skipping insertion in model container [2025-02-06 13:30:49,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,364 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 13:30:49,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:30:49,458 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 13:30:49,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:30:49,474 INFO L204 MainTranslator]: Completed translation [2025-02-06 13:30:49,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49 WrapperNode [2025-02-06 13:30:49,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 13:30:49,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 13:30:49,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 13:30:49,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 13:30:49,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,503 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2025-02-06 13:30:49,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 13:30:49,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 13:30:49,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 13:30:49,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 13:30:49,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,525 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]. [2025-02-06 13:30:49,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,527 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 13:30:49,530 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 13:30:49,530 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 13:30:49,531 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 13:30:49,531 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (1/1) ... [2025-02-06 13:30:49,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:30:49,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:30:49,565 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) [2025-02-06 13:30:49,572 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 [2025-02-06 13:30:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 13:30:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2025-02-06 13:30:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2025-02-06 13:30:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 13:30:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 13:30:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 13:30:49,625 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 13:30:49,627 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 13:30:49,718 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L22: havoc #t~ret4; [2025-02-06 13:30:49,762 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-02-06 13:30:49,762 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 13:30:49,771 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 13:30:49,771 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 13:30:49,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:30:49 BoogieIcfgContainer [2025-02-06 13:30:49,772 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 13:30:49,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 13:30:49,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 13:30:49,778 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 13:30:49,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 01:30:49" (1/3) ... [2025-02-06 13:30:49,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59557a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:30:49, skipping insertion in model container [2025-02-06 13:30:49,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:30:49" (2/3) ... [2025-02-06 13:30:49,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59557a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:30:49, skipping insertion in model container [2025-02-06 13:30:49,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:30:49" (3/3) ... [2025-02-06 13:30:49,783 INFO L128 eAbstractionObserver]: Analyzing ICFG recHanoi02-1.c [2025-02-06 13:30:49,796 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 13:30:49,798 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG recHanoi02-1.c that has 2 procedures, 29 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-02-06 13:30:49,848 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 13:30:49,857 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;@74a15211, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 13:30:49,858 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-06 13:30:49,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 25 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 13:30:49,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-06 13:30:49,866 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:30:49,867 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:30:49,868 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:30:49,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:30:49,875 INFO L85 PathProgramCache]: Analyzing trace with hash 77369545, now seen corresponding path program 1 times [2025-02-06 13:30:49,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:30:49,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938227102] [2025-02-06 13:30:49,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:30:49,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:30:49,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 13:30:49,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 13:30:49,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:30:49,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:50,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:30:50,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938227102] [2025-02-06 13:30:50,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938227102] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:30:50,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:30:50,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 13:30:50,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764626110] [2025-02-06 13:30:50,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:30:50,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:30:50,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:30:50,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:30:50,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:30:50,094 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 25 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:30:50,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:30:50,191 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2025-02-06 13:30:50,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:30:50,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-06 13:30:50,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:30:50,197 INFO L225 Difference]: With dead ends: 53 [2025-02-06 13:30:50,197 INFO L226 Difference]: Without dead ends: 37 [2025-02-06 13:30:50,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 13:30:50,203 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 31 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:30:50,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 90 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:30:50,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-02-06 13:30:50,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2025-02-06 13:30:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 27 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 13:30:50,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2025-02-06 13:30:50,232 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 7 [2025-02-06 13:30:50,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:30:50,233 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2025-02-06 13:30:50,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:30:50,234 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2025-02-06 13:30:50,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 13:30:50,234 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:30:50,235 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:30:50,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 13:30:50,235 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:30:50,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:30:50,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1896511420, now seen corresponding path program 1 times [2025-02-06 13:30:50,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:30:50,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316882660] [2025-02-06 13:30:50,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:30:50,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:30:50,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 13:30:50,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 13:30:50,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:30:50,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:50,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:50,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:30:50,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316882660] [2025-02-06 13:30:50,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316882660] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:30:50,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:30:50,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 13:30:50,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666993644] [2025-02-06 13:30:50,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:30:50,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:30:50,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:30:50,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:30:50,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:30:50,307 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:30:50,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:30:50,353 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2025-02-06 13:30:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:30:50,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-06 13:30:50,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:30:50,355 INFO L225 Difference]: With dead ends: 34 [2025-02-06 13:30:50,355 INFO L226 Difference]: Without dead ends: 33 [2025-02-06 13:30:50,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 13:30:50,356 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 27 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:30:50,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 37 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:30:50,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-02-06 13:30:50,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2025-02-06 13:30:50,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 13:30:50,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2025-02-06 13:30:50,365 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 8 [2025-02-06 13:30:50,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:30:50,365 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2025-02-06 13:30:50,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:30:50,366 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2025-02-06 13:30:50,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 13:30:50,366 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:30:50,366 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:30:50,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 13:30:50,366 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:30:50,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:30:50,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1934561071, now seen corresponding path program 1 times [2025-02-06 13:30:50,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:30:50,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632270657] [2025-02-06 13:30:50,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:30:50,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:30:50,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 13:30:50,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 13:30:50,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:30:50,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:50,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:30:50,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632270657] [2025-02-06 13:30:50,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632270657] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:30:50,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140394916] [2025-02-06 13:30:50,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:30:50,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:30:50,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:30:50,492 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) [2025-02-06 13:30:50,494 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 [2025-02-06 13:30:50,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 13:30:50,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 13:30:50,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:30:50,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:50,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 13:30:50,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:30:50,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:50,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:30:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:50,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140394916] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:30:50,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:30:50,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2025-02-06 13:30:50,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765632992] [2025-02-06 13:30:50,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:30:50,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 13:30:50,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:30:50,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 13:30:50,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2025-02-06 13:30:50,668 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:30:50,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:30:50,830 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2025-02-06 13:30:50,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 13:30:50,831 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-02-06 13:30:50,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:30:50,832 INFO L225 Difference]: With dead ends: 92 [2025-02-06 13:30:50,833 INFO L226 Difference]: Without dead ends: 91 [2025-02-06 13:30:50,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2025-02-06 13:30:50,835 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 185 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:30:50,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 137 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:30:50,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2025-02-06 13:30:50,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 67. [2025-02-06 13:30:50,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 56 states have internal predecessors, (76), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-06 13:30:50,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2025-02-06 13:30:50,850 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 12 [2025-02-06 13:30:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:30:50,850 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2025-02-06 13:30:50,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:30:50,850 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2025-02-06 13:30:50,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 13:30:50,851 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:30:50,851 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:30:50,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 13:30:51,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:30:51,052 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:30:51,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:30:51,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1656507467, now seen corresponding path program 1 times [2025-02-06 13:30:51,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:30:51,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509685241] [2025-02-06 13:30:51,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:30:51,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:30:51,057 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 13:30:51,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 13:30:51,064 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:30:51,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:51,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:30:51,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:30:51,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509685241] [2025-02-06 13:30:51,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509685241] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:30:51,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:30:51,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:30:51,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932013249] [2025-02-06 13:30:51,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:30:51,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:30:51,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:30:51,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:30:51,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:30:51,122 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 13:30:51,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:30:51,159 INFO L93 Difference]: Finished difference Result 104 states and 140 transitions. [2025-02-06 13:30:51,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:30:51,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2025-02-06 13:30:51,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:30:51,164 INFO L225 Difference]: With dead ends: 104 [2025-02-06 13:30:51,165 INFO L226 Difference]: Without dead ends: 93 [2025-02-06 13:30:51,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:30:51,166 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:30:51,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 46 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:30:51,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2025-02-06 13:30:51,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2025-02-06 13:30:51,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 78 states have internal predecessors, (98), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2025-02-06 13:30:51,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2025-02-06 13:30:51,180 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 15 [2025-02-06 13:30:51,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:30:51,180 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2025-02-06 13:30:51,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 13:30:51,180 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2025-02-06 13:30:51,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-02-06 13:30:51,181 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:30:51,181 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2025-02-06 13:30:51,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 13:30:51,182 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:30:51,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:30:51,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1181735625, now seen corresponding path program 2 times [2025-02-06 13:30:51,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:30:51,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537635619] [2025-02-06 13:30:51,192 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:30:51,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:30:51,198 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 2 equivalence classes. [2025-02-06 13:30:51,206 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 13:30:51,206 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:30:51,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:51,405 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:51,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:30:51,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537635619] [2025-02-06 13:30:51,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537635619] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:30:51,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491626592] [2025-02-06 13:30:51,406 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:30:51,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:30:51,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:30:51,409 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) [2025-02-06 13:30:51,415 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 [2025-02-06 13:30:51,432 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 2 equivalence classes. [2025-02-06 13:30:51,441 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 13:30:51,441 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:30:51,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:51,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 13:30:51,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:30:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:51,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:30:51,663 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:51,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491626592] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:30:51,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:30:51,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2025-02-06 13:30:51,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681336361] [2025-02-06 13:30:51,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:30:51,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-06 13:30:51,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:30:51,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-06 13:30:51,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2025-02-06 13:30:51,665 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 24 states, 21 states have (on average 2.0) internal successors, (42), 14 states have internal predecessors, (42), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:30:51,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:30:51,912 INFO L93 Difference]: Finished difference Result 248 states and 263 transitions. [2025-02-06 13:30:51,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-06 13:30:51,912 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0) internal successors, (42), 14 states have internal predecessors, (42), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2025-02-06 13:30:51,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:30:51,914 INFO L225 Difference]: With dead ends: 248 [2025-02-06 13:30:51,914 INFO L226 Difference]: Without dead ends: 247 [2025-02-06 13:30:51,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 13:30:51,915 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 485 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:30:51,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 283 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:30:51,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2025-02-06 13:30:51,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 207. [2025-02-06 13:30:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 171 states have (on average 1.3099415204678362) internal successors, (224), 174 states have internal predecessors, (224), 12 states have call successors, (12), 11 states have call predecessors, (12), 19 states have return successors, (21), 21 states have call predecessors, (21), 11 states have call successors, (21) [2025-02-06 13:30:51,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 257 transitions. [2025-02-06 13:30:51,936 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 257 transitions. Word has length 27 [2025-02-06 13:30:51,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:30:51,939 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 257 transitions. [2025-02-06 13:30:51,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0) internal successors, (42), 14 states have internal predecessors, (42), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:30:51,939 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 257 transitions. [2025-02-06 13:30:51,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-02-06 13:30:51,940 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:30:51,940 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:30:51,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 13:30:52,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:30:52,140 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:30:52,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:30:52,141 INFO L85 PathProgramCache]: Analyzing trace with hash -854576000, now seen corresponding path program 1 times [2025-02-06 13:30:52,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:30:52,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248922159] [2025-02-06 13:30:52,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:30:52,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:30:52,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 13:30:52,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 13:30:52,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:30:52,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:52,212 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 13:30:52,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:30:52,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248922159] [2025-02-06 13:30:52,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248922159] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:30:52,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307768720] [2025-02-06 13:30:52,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:30:52,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:30:52,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:30:52,214 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) [2025-02-06 13:30:52,215 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 [2025-02-06 13:30:52,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 13:30:52,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 13:30:52,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:30:52,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:52,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:30:52,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:30:52,265 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 13:30:52,265 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:30:52,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307768720] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:30:52,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:30:52,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-06 13:30:52,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601513694] [2025-02-06 13:30:52,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:30:52,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 13:30:52,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:30:52,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 13:30:52,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:30:52,267 INFO L87 Difference]: Start difference. First operand 207 states and 257 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 13:30:52,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:30:52,293 INFO L93 Difference]: Finished difference Result 207 states and 257 transitions. [2025-02-06 13:30:52,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 13:30:52,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2025-02-06 13:30:52,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:30:52,294 INFO L225 Difference]: With dead ends: 207 [2025-02-06 13:30:52,294 INFO L226 Difference]: Without dead ends: 205 [2025-02-06 13:30:52,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:30:52,295 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:30:52,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 41 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:30:52,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2025-02-06 13:30:52,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2025-02-06 13:30:52,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 171 states have (on average 1.1812865497076024) internal successors, (202), 172 states have internal predecessors, (202), 12 states have call successors, (12), 11 states have call predecessors, (12), 19 states have return successors, (21), 21 states have call predecessors, (21), 11 states have call successors, (21) [2025-02-06 13:30:52,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 235 transitions. [2025-02-06 13:30:52,314 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 235 transitions. Word has length 27 [2025-02-06 13:30:52,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:30:52,315 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 235 transitions. [2025-02-06 13:30:52,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 13:30:52,315 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 235 transitions. [2025-02-06 13:30:52,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-02-06 13:30:52,315 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:30:52,315 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:30:52,324 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 13:30:52,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:30:52,516 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:30:52,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:30:52,516 INFO L85 PathProgramCache]: Analyzing trace with hash -722052249, now seen corresponding path program 1 times [2025-02-06 13:30:52,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:30:52,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901146172] [2025-02-06 13:30:52,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:30:52,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:30:52,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 13:30:52,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 13:30:52,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:30:52,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:52,566 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 13:30:52,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:30:52,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901146172] [2025-02-06 13:30:52,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901146172] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:30:52,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745158016] [2025-02-06 13:30:52,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:30:52,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:30:52,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:30:52,568 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) [2025-02-06 13:30:52,569 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 [2025-02-06 13:30:52,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 13:30:52,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 13:30:52,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:30:52,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:52,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:30:52,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:30:52,624 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 13:30:52,624 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:30:52,714 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 13:30:52,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745158016] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:30:52,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:30:52,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-06 13:30:52,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796974401] [2025-02-06 13:30:52,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:30:52,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 13:30:52,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:30:52,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 13:30:52,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 13:30:52,718 INFO L87 Difference]: Start difference. First operand 205 states and 235 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:30:52,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:30:52,762 INFO L93 Difference]: Finished difference Result 409 states and 494 transitions. [2025-02-06 13:30:52,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 13:30:52,763 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 28 [2025-02-06 13:30:52,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:30:52,764 INFO L225 Difference]: With dead ends: 409 [2025-02-06 13:30:52,764 INFO L226 Difference]: Without dead ends: 344 [2025-02-06 13:30:52,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 13:30:52,765 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:30:52,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 68 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:30:52,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2025-02-06 13:30:52,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2025-02-06 13:30:52,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 290 states have (on average 1.0586206896551724) internal successors, (307), 287 states have internal predecessors, (307), 12 states have call successors, (12), 11 states have call predecessors, (12), 40 states have return successors, (45), 45 states have call predecessors, (45), 11 states have call successors, (45) [2025-02-06 13:30:52,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 364 transitions. [2025-02-06 13:30:52,787 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 364 transitions. Word has length 28 [2025-02-06 13:30:52,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:30:52,788 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 364 transitions. [2025-02-06 13:30:52,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:30:52,788 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 364 transitions. [2025-02-06 13:30:52,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-02-06 13:30:52,792 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:30:52,792 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1] [2025-02-06 13:30:52,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 13:30:52,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-06 13:30:52,993 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:30:52,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:30:52,993 INFO L85 PathProgramCache]: Analyzing trace with hash 439609801, now seen corresponding path program 3 times [2025-02-06 13:30:52,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:30:52,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526124150] [2025-02-06 13:30:52,993 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:30:52,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:30:52,998 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 57 statements into 11 equivalence classes. [2025-02-06 13:30:53,010 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 57 of 57 statements. [2025-02-06 13:30:53,012 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 13:30:53,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:53,401 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:53,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:30:53,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526124150] [2025-02-06 13:30:53,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526124150] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:30:53,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239045425] [2025-02-06 13:30:53,403 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:30:53,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:30:53,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:30:53,404 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) [2025-02-06 13:30:53,407 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 [2025-02-06 13:30:53,430 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 57 statements into 11 equivalence classes. [2025-02-06 13:30:53,446 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 57 of 57 statements. [2025-02-06 13:30:53,446 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 13:30:53,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:53,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-06 13:30:53,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:30:53,530 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:53,531 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:30:54,046 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:54,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239045425] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:30:54,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:30:54,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2025-02-06 13:30:54,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147865002] [2025-02-06 13:30:54,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:30:54,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-02-06 13:30:54,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:30:54,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-02-06 13:30:54,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2025-02-06 13:30:54,049 INFO L87 Difference]: Start difference. First operand 344 states and 364 transitions. Second operand has 48 states, 45 states have (on average 2.0) internal successors, (90), 26 states have internal predecessors, (90), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:30:54,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:30:54,835 INFO L93 Difference]: Finished difference Result 823 states and 856 transitions. [2025-02-06 13:30:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-02-06 13:30:54,836 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.0) internal successors, (90), 26 states have internal predecessors, (90), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2025-02-06 13:30:54,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:30:54,843 INFO L225 Difference]: With dead ends: 823 [2025-02-06 13:30:54,843 INFO L226 Difference]: Without dead ends: 822 [2025-02-06 13:30:54,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2025-02-06 13:30:54,846 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 1162 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 13:30:54,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 481 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 13:30:54,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2025-02-06 13:30:54,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 800. [2025-02-06 13:30:54,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 674 states have (on average 1.0608308605341246) internal successors, (715), 671 states have internal predecessors, (715), 24 states have call successors, (24), 23 states have call predecessors, (24), 100 states have return successors, (105), 105 states have call predecessors, (105), 23 states have call successors, (105) [2025-02-06 13:30:54,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 844 transitions. [2025-02-06 13:30:54,888 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 844 transitions. Word has length 57 [2025-02-06 13:30:54,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:30:54,889 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 844 transitions. [2025-02-06 13:30:54,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.0) internal successors, (90), 26 states have internal predecessors, (90), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:30:54,889 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 844 transitions. [2025-02-06 13:30:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-06 13:30:54,890 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:30:54,890 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2025-02-06 13:30:54,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 13:30:55,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:30:55,092 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:30:55,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:30:55,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1414418492, now seen corresponding path program 2 times [2025-02-06 13:30:55,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:30:55,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158103582] [2025-02-06 13:30:55,093 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:30:55,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:30:55,096 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 2 equivalence classes. [2025-02-06 13:30:55,105 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-02-06 13:30:55,105 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:30:55,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-06 13:30:55,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:30:55,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158103582] [2025-02-06 13:30:55,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158103582] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:30:55,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900782259] [2025-02-06 13:30:55,238 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:30:55,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:30:55,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:30:55,240 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:30:55,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 13:30:55,260 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 2 equivalence classes. [2025-02-06 13:30:55,272 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-02-06 13:30:55,272 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:30:55,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:55,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 13:30:55,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:30:55,318 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-06 13:30:55,318 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:30:55,829 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-06 13:30:55,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900782259] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:30:55,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:30:55,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-02-06 13:30:55,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463415969] [2025-02-06 13:30:55,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:30:55,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-06 13:30:55,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:30:55,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-06 13:30:55,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-02-06 13:30:55,831 INFO L87 Difference]: Start difference. First operand 800 states and 844 transitions. Second operand has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2025-02-06 13:30:55,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:30:55,930 INFO L93 Difference]: Finished difference Result 1743 states and 1924 transitions. [2025-02-06 13:30:55,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 13:30:55,931 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 64 [2025-02-06 13:30:55,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:30:55,938 INFO L225 Difference]: With dead ends: 1743 [2025-02-06 13:30:55,938 INFO L226 Difference]: Without dead ends: 1439 [2025-02-06 13:30:55,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-02-06 13:30:55,942 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:30:55,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 98 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:30:55,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2025-02-06 13:30:56,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1439. [2025-02-06 13:30:56,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1226 states have (on average 1.0285481239804242) internal successors, (1261), 1217 states have internal predecessors, (1261), 24 states have call successors, (24), 23 states have call predecessors, (24), 187 states have return successors, (198), 198 states have call predecessors, (198), 23 states have call successors, (198) [2025-02-06 13:30:56,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1483 transitions. [2025-02-06 13:30:56,019 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1483 transitions. Word has length 64 [2025-02-06 13:30:56,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:30:56,019 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 1483 transitions. [2025-02-06 13:30:56,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2025-02-06 13:30:56,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1483 transitions. [2025-02-06 13:30:56,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-02-06 13:30:56,021 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:30:56,021 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1] [2025-02-06 13:30:56,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-06 13:30:56,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-02-06 13:30:56,222 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:30:56,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:30:56,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1126217783, now seen corresponding path program 4 times [2025-02-06 13:30:56,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:30:56,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507075561] [2025-02-06 13:30:56,223 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:30:56,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:30:56,229 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 117 statements into 2 equivalence classes. [2025-02-06 13:30:56,256 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 117 of 117 statements. [2025-02-06 13:30:56,257 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 13:30:56,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:57,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:57,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:30:57,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507075561] [2025-02-06 13:30:57,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507075561] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:30:57,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124848759] [2025-02-06 13:30:57,392 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:30:57,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:30:57,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:30:57,393 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:30:57,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 13:30:57,418 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 117 statements into 2 equivalence classes. [2025-02-06 13:30:57,437 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 117 of 117 statements. [2025-02-06 13:30:57,438 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 13:30:57,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:30:57,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-02-06 13:30:57,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:30:57,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:57,583 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:30:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:30:59,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124848759] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:30:59,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:30:59,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2025-02-06 13:30:59,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108333022] [2025-02-06 13:30:59,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:30:59,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-02-06 13:30:59,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:30:59,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-02-06 13:30:59,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2025-02-06 13:30:59,068 INFO L87 Difference]: Start difference. First operand 1439 states and 1483 transitions. Second operand has 96 states, 93 states have (on average 2.0) internal successors, (186), 50 states have internal predecessors, (186), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:31:01,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:31:01,202 INFO L93 Difference]: Finished difference Result 3406 states and 3475 transitions. [2025-02-06 13:31:01,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-02-06 13:31:01,203 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 2.0) internal successors, (186), 50 states have internal predecessors, (186), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2025-02-06 13:31:01,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:31:01,212 INFO L225 Difference]: With dead ends: 3406 [2025-02-06 13:31:01,213 INFO L226 Difference]: Without dead ends: 3405 [2025-02-06 13:31:01,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2025-02-06 13:31:01,218 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 2219 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 13:31:01,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2220 Valid, 1054 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 13:31:01,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2025-02-06 13:31:01,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3359. [2025-02-06 13:31:01,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3359 states, 2858 states have (on average 1.0290412876137158) internal successors, (2941), 2849 states have internal predecessors, (2941), 48 states have call successors, (48), 47 states have call predecessors, (48), 451 states have return successors, (462), 462 states have call predecessors, (462), 47 states have call successors, (462) [2025-02-06 13:31:01,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 3451 transitions. [2025-02-06 13:31:01,337 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 3451 transitions. Word has length 117 [2025-02-06 13:31:01,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:31:01,338 INFO L471 AbstractCegarLoop]: Abstraction has 3359 states and 3451 transitions. [2025-02-06 13:31:01,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 2.0) internal successors, (186), 50 states have internal predecessors, (186), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:31:01,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 3451 transitions. [2025-02-06 13:31:01,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-02-06 13:31:01,341 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:31:01,341 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2025-02-06 13:31:01,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 13:31:01,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:31:01,545 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:31:01,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:31:01,546 INFO L85 PathProgramCache]: Analyzing trace with hash -579282660, now seen corresponding path program 3 times [2025-02-06 13:31:01,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:31:01,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52030953] [2025-02-06 13:31:01,546 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:31:01,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:31:01,551 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 136 statements into 12 equivalence classes. [2025-02-06 13:31:01,573 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 131 of 136 statements. [2025-02-06 13:31:01,574 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 13:31:01,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:31:02,020 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2025-02-06 13:31:02,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:31:02,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52030953] [2025-02-06 13:31:02,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52030953] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:31:02,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076882707] [2025-02-06 13:31:02,021 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:31:02,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:31:02,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:31:02,023 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:31:02,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 13:31:02,050 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 136 statements into 12 equivalence classes. [2025-02-06 13:31:02,072 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 131 of 136 statements. [2025-02-06 13:31:02,073 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 13:31:02,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:31:02,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-06 13:31:02,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:31:02,190 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2025-02-06 13:31:02,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:31:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2025-02-06 13:31:05,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076882707] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:31:05,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:31:05,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2025-02-06 13:31:05,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297342793] [2025-02-06 13:31:05,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:31:05,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-02-06 13:31:05,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:31:05,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-02-06 13:31:05,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2025-02-06 13:31:05,760 INFO L87 Difference]: Start difference. First operand 3359 states and 3451 transitions. Second operand has 48 states, 47 states have (on average 3.0638297872340425) internal successors, (144), 48 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (24), 23 states have call predecessors, (24), 1 states have call successors, (24) [2025-02-06 13:31:06,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:31:06,008 INFO L93 Difference]: Finished difference Result 7260 states and 7915 transitions. [2025-02-06 13:31:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-02-06 13:31:06,008 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.0638297872340425) internal successors, (144), 48 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (24), 23 states have call predecessors, (24), 1 states have call successors, (24) Word has length 136 [2025-02-06 13:31:06,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:31:06,024 INFO L225 Difference]: With dead ends: 7260 [2025-02-06 13:31:06,024 INFO L226 Difference]: Without dead ends: 5897 [2025-02-06 13:31:06,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2025-02-06 13:31:06,029 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:31:06,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 133 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:31:06,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5897 states. [2025-02-06 13:31:06,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5897 to 5897. [2025-02-06 13:31:06,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5897 states, 5042 states have (on average 1.014081713605712) internal successors, (5113), 5021 states have internal predecessors, (5113), 48 states have call successors, (48), 47 states have call predecessors, (48), 805 states have return successors, (828), 828 states have call predecessors, (828), 47 states have call successors, (828) [2025-02-06 13:31:06,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5897 states to 5897 states and 5989 transitions. [2025-02-06 13:31:06,176 INFO L78 Accepts]: Start accepts. Automaton has 5897 states and 5989 transitions. Word has length 136 [2025-02-06 13:31:06,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:31:06,177 INFO L471 AbstractCegarLoop]: Abstraction has 5897 states and 5989 transitions. [2025-02-06 13:31:06,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.0638297872340425) internal successors, (144), 48 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (24), 23 states have call predecessors, (24), 1 states have call successors, (24) [2025-02-06 13:31:06,177 INFO L276 IsEmpty]: Start isEmpty. Operand 5897 states and 5989 transitions. [2025-02-06 13:31:06,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-02-06 13:31:06,184 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:31:06,184 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1, 1] [2025-02-06 13:31:06,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-06 13:31:06,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:31:06,385 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:31:06,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:31:06,385 INFO L85 PathProgramCache]: Analyzing trace with hash -855440439, now seen corresponding path program 5 times [2025-02-06 13:31:06,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:31:06,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975784586] [2025-02-06 13:31:06,385 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 13:31:06,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:31:06,395 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 237 statements into 47 equivalence classes. [2025-02-06 13:31:06,487 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 237 of 237 statements. [2025-02-06 13:31:06,488 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-02-06 13:31:06,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:31:09,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:31:09,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:31:09,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975784586] [2025-02-06 13:31:09,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975784586] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:31:09,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127846003] [2025-02-06 13:31:09,799 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 13:31:09,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:31:09,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:31:09,801 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:31:09,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 13:31:09,870 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 237 statements into 47 equivalence classes. [2025-02-06 13:31:09,999 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 237 of 237 statements. [2025-02-06 13:31:09,999 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-02-06 13:31:09,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:31:10,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 96 conjuncts are in the unsatisfiable core [2025-02-06 13:31:10,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:31:10,229 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:31:10,229 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:31:15,847 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:31:15,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127846003] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:31:15,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:31:15,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2025-02-06 13:31:15,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359657988] [2025-02-06 13:31:15,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:31:15,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2025-02-06 13:31:15,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:31:15,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2025-02-06 13:31:15,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2025-02-06 13:31:15,856 INFO L87 Difference]: Start difference. First operand 5897 states and 5989 transitions. Second operand has 192 states, 189 states have (on average 2.0) internal successors, (378), 98 states have internal predecessors, (378), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:31:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:31:26,382 INFO L93 Difference]: Finished difference Result 13864 states and 14005 transitions. [2025-02-06 13:31:26,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2025-02-06 13:31:26,383 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 2.0) internal successors, (378), 98 states have internal predecessors, (378), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2025-02-06 13:31:26,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:31:26,421 INFO L225 Difference]: With dead ends: 13864 [2025-02-06 13:31:26,422 INFO L226 Difference]: Without dead ends: 13863 [2025-02-06 13:31:26,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2025-02-06 13:31:26,430 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 6832 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6833 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 721 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:31:26,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6833 Valid, 2269 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [721 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-06 13:31:26,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13863 states. [2025-02-06 13:31:26,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13863 to 13769. [2025-02-06 13:31:26,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13769 states, 11762 states have (on average 1.0141982656010882) internal successors, (11929), 11741 states have internal predecessors, (11929), 96 states have call successors, (96), 95 states have call predecessors, (96), 1909 states have return successors, (1932), 1932 states have call predecessors, (1932), 95 states have call successors, (1932) [2025-02-06 13:31:26,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13769 states to 13769 states and 13957 transitions. [2025-02-06 13:31:26,824 INFO L78 Accepts]: Start accepts. Automaton has 13769 states and 13957 transitions. Word has length 237 [2025-02-06 13:31:26,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:31:26,825 INFO L471 AbstractCegarLoop]: Abstraction has 13769 states and 13957 transitions. [2025-02-06 13:31:26,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 2.0) internal successors, (378), 98 states have internal predecessors, (378), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:31:26,829 INFO L276 IsEmpty]: Start isEmpty. Operand 13769 states and 13957 transitions. [2025-02-06 13:31:26,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2025-02-06 13:31:26,838 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:31:26,838 INFO L218 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2025-02-06 13:31:26,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 13:31:27,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:31:27,039 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:31:27,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:31:27,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2125832924, now seen corresponding path program 4 times [2025-02-06 13:31:27,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:31:27,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158942276] [2025-02-06 13:31:27,040 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:31:27,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:31:27,050 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 280 statements into 2 equivalence classes. [2025-02-06 13:31:27,070 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 280 of 280 statements. [2025-02-06 13:31:27,073 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 13:31:27,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:31:28,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-02-06 13:31:28,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:31:28,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158942276] [2025-02-06 13:31:28,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158942276] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:31:28,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561332137] [2025-02-06 13:31:28,593 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:31:28,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:31:28,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:31:28,595 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:31:28,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 13:31:28,670 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 280 statements into 2 equivalence classes. [2025-02-06 13:31:28,711 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 280 of 280 statements. [2025-02-06 13:31:28,711 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 13:31:28,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:31:28,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-02-06 13:31:28,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:31:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-02-06 13:31:28,862 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:32:06,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-02-06 13:32:06,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561332137] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:32:06,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:32:06,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 63 [2025-02-06 13:32:06,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757962773] [2025-02-06 13:32:06,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:32:06,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2025-02-06 13:32:06,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:32:06,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2025-02-06 13:32:06,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2025-02-06 13:32:06,400 INFO L87 Difference]: Start difference. First operand 13769 states and 13957 transitions. Second operand has 64 states, 63 states have (on average 3.0952380952380953) internal successors, (195), 64 states have internal predecessors, (195), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2025-02-06 13:32:06,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:32:06,886 INFO L93 Difference]: Finished difference Result 19058 states and 20005 transitions. [2025-02-06 13:32:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-02-06 13:32:06,888 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.0952380952380953) internal successors, (195), 64 states have internal predecessors, (195), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) Word has length 280 [2025-02-06 13:32:06,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:32:06,934 INFO L225 Difference]: With dead ends: 19058 [2025-02-06 13:32:06,934 INFO L226 Difference]: Without dead ends: 17589 [2025-02-06 13:32:06,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 511 SyntacticMatches, 32 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2583 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2025-02-06 13:32:06,944 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:32:06,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 118 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:32:06,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17589 states. [2025-02-06 13:32:07,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17589 to 17589. [2025-02-06 13:32:07,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17589 states, 15042 states have (on average 1.0105704028719584) internal successors, (15201), 15013 states have internal predecessors, (15201), 96 states have call successors, (96), 95 states have call predecessors, (96), 2449 states have return successors, (2480), 2480 states have call predecessors, (2480), 95 states have call successors, (2480) [2025-02-06 13:32:07,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17589 states to 17589 states and 17777 transitions. [2025-02-06 13:32:07,406 INFO L78 Accepts]: Start accepts. Automaton has 17589 states and 17777 transitions. Word has length 280 [2025-02-06 13:32:07,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:32:07,407 INFO L471 AbstractCegarLoop]: Abstraction has 17589 states and 17777 transitions. [2025-02-06 13:32:07,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.0952380952380953) internal successors, (195), 64 states have internal predecessors, (195), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2025-02-06 13:32:07,407 INFO L276 IsEmpty]: Start isEmpty. Operand 17589 states and 17777 transitions. [2025-02-06 13:32:07,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2025-02-06 13:32:07,421 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:32:07,421 INFO L218 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 1, 1, 1, 1, 1, 1] [2025-02-06 13:32:07,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-06 13:32:07,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-06 13:32:07,622 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 13:32:07,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:32:07,623 INFO L85 PathProgramCache]: Analyzing trace with hash -804566692, now seen corresponding path program 5 times [2025-02-06 13:32:07,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:32:07,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526063082] [2025-02-06 13:32:07,623 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 13:32:07,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:32:07,646 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 376 statements into 32 equivalence classes. [2025-02-06 13:32:07,740 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) and asserted 376 of 376 statements. [2025-02-06 13:32:07,741 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2025-02-06 13:32:07,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:32:09,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3295 proven. 406 refuted. 0 times theorem prover too weak. 1881 trivial. 0 not checked. [2025-02-06 13:32:09,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:32:09,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526063082] [2025-02-06 13:32:09,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526063082] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:32:09,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800093241] [2025-02-06 13:32:09,055 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 13:32:09,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:32:09,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:32:09,057 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:32:09,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 13:32:09,542 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 376 statements into 32 equivalence classes. [2025-02-06 13:32:09,614 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) and asserted 376 of 376 statements. [2025-02-06 13:32:09,614 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2025-02-06 13:32:09,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:32:09,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 66 conjuncts are in the unsatisfiable core [2025-02-06 13:32:09,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:32:09,887 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3195 proven. 152 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2025-02-06 13:32:09,887 INFO L312 TraceCheckSpWp]: Computing backward predicates...