./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 715908359373978289cc76ce2f00faf49f4d4a3c6ddae64771646fc969bea981 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 02:33:16,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 02:33:16,195 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 02:33:16,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 02:33:16,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 02:33:16,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 02:33:16,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 02:33:16,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 02:33:16,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 02:33:16,214 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 02:33:16,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 02:33:16,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 02:33:16,214 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 02:33:16,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 02:33:16,214 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 02:33:16,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 02:33:16,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 02:33:16,215 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 02:33:16,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 02:33:16,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 02:33:16,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 02:33:16,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 02:33:16,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 02:33:16,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 02:33:16,215 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 02:33:16,216 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 02:33:16,216 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 02:33:16,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 02:33:16,216 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 02:33:16,216 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 02:33:16,216 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 02:33:16,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 02:33:16,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 02:33:16,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 02:33:16,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:33:16,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:33:16,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 02:33:16,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 02:33:16,217 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 715908359373978289cc76ce2f00faf49f4d4a3c6ddae64771646fc969bea981 [2025-01-10 02:33:16,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 02:33:16,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 02:33:16,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 02:33:16,467 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 02:33:16,468 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 02:33:16,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c [2025-01-10 02:33:17,751 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a292e0197/17ffa8b7cd194d1b9dbbdc017ad34e59/FLAGbb605ba7d [2025-01-10 02:33:17,996 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 02:33:18,000 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i15_o15-1.c [2025-01-10 02:33:18,040 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a292e0197/17ffa8b7cd194d1b9dbbdc017ad34e59/FLAGbb605ba7d [2025-01-10 02:33:18,331 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a292e0197/17ffa8b7cd194d1b9dbbdc017ad34e59 [2025-01-10 02:33:18,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 02:33:18,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 02:33:18,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 02:33:18,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 02:33:18,337 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 02:33:18,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626eed2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18, skipping insertion in model container [2025-01-10 02:33:18,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,346 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 02:33:18,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 02:33:18,458 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 02:33:18,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 02:33:18,478 INFO L204 MainTranslator]: Completed translation [2025-01-10 02:33:18,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18 WrapperNode [2025-01-10 02:33:18,478 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 02:33:18,479 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 02:33:18,479 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 02:33:18,479 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 02:33:18,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,505 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2025-01-10 02:33:18,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 02:33:18,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 02:33:18,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 02:33:18,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 02:33:18,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,521 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-10 02:33:18,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,524 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,531 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 02:33:18,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 02:33:18,532 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 02:33:18,532 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 02:33:18,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (1/1) ... [2025-01-10 02:33:18,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:33:18,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:33:18,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 02:33:18,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 02:33:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 02:33:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 02:33:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 02:33:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 02:33:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure id [2025-01-10 02:33:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2025-01-10 02:33:18,617 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 02:33:18,618 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 02:33:18,741 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-01-10 02:33:18,741 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 02:33:18,747 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 02:33:18,747 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 02:33:18,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:33:18 BoogieIcfgContainer [2025-01-10 02:33:18,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 02:33:18,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 02:33:18,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 02:33:18,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 02:33:18,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:33:18" (1/3) ... [2025-01-10 02:33:18,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a768617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:33:18, skipping insertion in model container [2025-01-10 02:33:18,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:33:18" (2/3) ... [2025-01-10 02:33:18,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a768617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:33:18, skipping insertion in model container [2025-01-10 02:33:18,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:33:18" (3/3) ... [2025-01-10 02:33:18,754 INFO L128 eAbstractionObserver]: Analyzing ICFG id_i15_o15-1.c [2025-01-10 02:33:18,763 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 02:33:18,765 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG id_i15_o15-1.c that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-01-10 02:33:18,794 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 02:33:18,801 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;@1b00ccb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 02:33:18,801 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-10 02:33:18,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 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) [2025-01-10 02:33:18,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-01-10 02:33:18,807 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:18,808 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 02:33:18,808 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:18,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:18,811 INFO L85 PathProgramCache]: Analyzing trace with hash 890350836, now seen corresponding path program 1 times [2025-01-10 02:33:18,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:18,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853825167] [2025-01-10 02:33:18,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:33:18,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:18,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 02:33:18,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 02:33:18,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:33:18,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:18,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:18,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:18,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853825167] [2025-01-10 02:33:18,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853825167] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:33:18,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:33:18,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:33:18,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613704939] [2025-01-10 02:33:18,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:33:18,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:33:18,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:18,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:33:18,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:33:18,991 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 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 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2025-01-10 02:33:19,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:19,067 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2025-01-10 02:33:19,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:33:19,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 6 [2025-01-10 02:33:19,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:19,077 INFO L225 Difference]: With dead ends: 46 [2025-01-10 02:33:19,082 INFO L226 Difference]: Without dead ends: 27 [2025-01-10 02:33:19,085 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 [2025-01-10 02:33:19,090 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:19,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 69 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:33:19,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-01-10 02:33:19,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2025-01-10 02:33:19,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 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) [2025-01-10 02:33:19,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2025-01-10 02:33:19,146 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 6 [2025-01-10 02:33:19,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:19,147 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2025-01-10 02:33:19,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2025-01-10 02:33:19,147 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2025-01-10 02:33:19,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-10 02:33:19,149 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:19,149 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:33:19,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 02:33:19,150 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:19,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:19,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1922931507, now seen corresponding path program 1 times [2025-01-10 02:33:19,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:19,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141189231] [2025-01-10 02:33:19,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:33:19,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:19,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 02:33:19,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 02:33:19,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:33:19,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:19,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:19,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:19,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141189231] [2025-01-10 02:33:19,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141189231] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:33:19,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392817673] [2025-01-10 02:33:19,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:33:19,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:19,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:33:19,242 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:33:19,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 02:33:19,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 02:33:19,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 02:33:19,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:33:19,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:19,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 02:33:19,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:33:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:19,345 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:33:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:19,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392817673] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:33:19,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:33:19,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2025-01-10 02:33:19,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028063452] [2025-01-10 02:33:19,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:33:19,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-10 02:33:19,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:19,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-10 02:33:19,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2025-01-10 02:33:19,418 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 15 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:33:19,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:19,541 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2025-01-10 02:33:19,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 02:33:19,542 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-01-10 02:33:19,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:19,543 INFO L225 Difference]: With dead ends: 80 [2025-01-10 02:33:19,543 INFO L226 Difference]: Without dead ends: 72 [2025-01-10 02:33:19,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2025-01-10 02:33:19,544 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 120 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:19,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 101 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:33:19,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2025-01-10 02:33:19,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55. [2025-01-10 02:33:19,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 44 states have internal predecessors, (58), 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) [2025-01-10 02:33:19,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2025-01-10 02:33:19,553 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 11 [2025-01-10 02:33:19,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:19,553 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2025-01-10 02:33:19,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:33:19,553 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2025-01-10 02:33:19,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-10 02:33:19,554 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:19,554 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-01-10 02:33:19,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-10 02:33:19,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:19,755 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:19,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:19,756 INFO L85 PathProgramCache]: Analyzing trace with hash -518665372, now seen corresponding path program 1 times [2025-01-10 02:33:19,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:19,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506343726] [2025-01-10 02:33:19,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:33:19,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:19,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 02:33:19,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 02:33:19,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:33:19,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:19,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:19,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:19,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506343726] [2025-01-10 02:33:19,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506343726] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:33:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860236333] [2025-01-10 02:33:19,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:33:19,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:19,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:33:19,821 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:33:19,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 02:33:19,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 02:33:19,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 02:33:19,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:33:19,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:19,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 02:33:19,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:33:19,885 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:19,885 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:33:19,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860236333] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:33:19,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:33:19,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2025-01-10 02:33:19,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41577716] [2025-01-10 02:33:19,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:33:19,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 02:33:19,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:19,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 02:33:19,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-01-10 02:33:19,886 INFO L87 Difference]: Start difference. First operand 55 states and 69 transitions. Second operand has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:33:19,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:19,930 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2025-01-10 02:33:19,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 02:33:19,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-01-10 02:33:19,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:19,932 INFO L225 Difference]: With dead ends: 63 [2025-01-10 02:33:19,932 INFO L226 Difference]: Without dead ends: 62 [2025-01-10 02:33:19,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2025-01-10 02:33:19,932 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 37 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:19,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 37 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:33:19,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2025-01-10 02:33:19,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2025-01-10 02:33:19,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 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) [2025-01-10 02:33:19,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2025-01-10 02:33:19,941 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 12 [2025-01-10 02:33:19,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:19,941 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2025-01-10 02:33:19,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:33:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2025-01-10 02:33:19,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-10 02:33:19,941 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:19,942 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:33:19,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-10 02:33:20,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:20,146 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:20,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:20,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1856245274, now seen corresponding path program 1 times [2025-01-10 02:33:20,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:20,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249616406] [2025-01-10 02:33:20,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:33:20,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:20,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 02:33:20,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 02:33:20,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:33:20,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:20,203 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-10 02:33:20,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:20,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249616406] [2025-01-10 02:33:20,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249616406] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:33:20,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:33:20,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 02:33:20,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300343420] [2025-01-10 02:33:20,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:33:20,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 02:33:20,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:20,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 02:33:20,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 02:33:20,205 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-01-10 02:33:20,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:20,220 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2025-01-10 02:33:20,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 02:33:20,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 19 [2025-01-10 02:33:20,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:20,221 INFO L225 Difference]: With dead ends: 74 [2025-01-10 02:33:20,221 INFO L226 Difference]: Without dead ends: 72 [2025-01-10 02:33:20,221 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 [2025-01-10 02:33:20,222 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:20,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:33:20,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2025-01-10 02:33:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2025-01-10 02:33:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 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) [2025-01-10 02:33:20,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2025-01-10 02:33:20,230 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2025-01-10 02:33:20,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:20,230 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2025-01-10 02:33:20,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-01-10 02:33:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2025-01-10 02:33:20,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-01-10 02:33:20,231 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:20,231 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:33:20,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 02:33:20,231 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:20,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:20,231 INFO L85 PathProgramCache]: Analyzing trace with hash -614066819, now seen corresponding path program 1 times [2025-01-10 02:33:20,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:20,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463159122] [2025-01-10 02:33:20,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:33:20,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:20,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-10 02:33:20,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-10 02:33:20,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:33:20,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 02:33:20,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:20,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463159122] [2025-01-10 02:33:20,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463159122] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:33:20,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:33:20,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 02:33:20,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783400828] [2025-01-10 02:33:20,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:33:20,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 02:33:20,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:20,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 02:33:20,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 02:33:20,261 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-01-10 02:33:20,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:20,270 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2025-01-10 02:33:20,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 02:33:20,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 24 [2025-01-10 02:33:20,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:20,271 INFO L225 Difference]: With dead ends: 72 [2025-01-10 02:33:20,271 INFO L226 Difference]: Without dead ends: 71 [2025-01-10 02:33:20,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 02:33:20,272 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:20,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:33:20,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2025-01-10 02:33:20,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-01-10 02:33:20,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 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) [2025-01-10 02:33:20,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2025-01-10 02:33:20,280 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 24 [2025-01-10 02:33:20,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:20,280 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2025-01-10 02:33:20,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-01-10 02:33:20,280 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2025-01-10 02:33:20,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-01-10 02:33:20,281 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:20,281 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2025-01-10 02:33:20,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 02:33:20,281 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:20,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:20,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1990585420, now seen corresponding path program 2 times [2025-01-10 02:33:20,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:20,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624210336] [2025-01-10 02:33:20,282 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 02:33:20,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:20,286 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-01-10 02:33:20,291 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 02:33:20,291 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 02:33:20,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:20,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:20,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624210336] [2025-01-10 02:33:20,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624210336] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:33:20,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97239175] [2025-01-10 02:33:20,424 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 02:33:20,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:20,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:33:20,425 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:33:20,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 02:33:20,446 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-01-10 02:33:20,454 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 02:33:20,454 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 02:33:20,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:20,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 02:33:20,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:33:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:20,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:33:20,698 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:20,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97239175] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:33:20,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:33:20,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2025-01-10 02:33:20,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291739792] [2025-01-10 02:33:20,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:33:20,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-01-10 02:33:20,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:20,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-01-10 02:33:20,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2025-01-10 02:33:20,701 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 27 states, 23 states have (on average 2.0) internal successors, (46), 16 states have internal predecessors, (46), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:33:21,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:21,001 INFO L93 Difference]: Finished difference Result 188 states and 204 transitions. [2025-01-10 02:33:21,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-01-10 02:33:21,002 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 2.0) internal successors, (46), 16 states have internal predecessors, (46), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2025-01-10 02:33:21,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:21,003 INFO L225 Difference]: With dead ends: 188 [2025-01-10 02:33:21,003 INFO L226 Difference]: Without dead ends: 156 [2025-01-10 02:33:21,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=991, Unknown=0, NotChecked=0, Total=1332 [2025-01-10 02:33:21,005 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 286 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:21,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 239 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:33:21,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2025-01-10 02:33:21,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2025-01-10 02:33:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 116 states have (on average 1.146551724137931) internal successors, (133), 116 states have internal predecessors, (133), 12 states have call successors, (12), 11 states have call predecessors, (12), 16 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2025-01-10 02:33:21,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2025-01-10 02:33:21,020 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 26 [2025-01-10 02:33:21,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:21,020 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2025-01-10 02:33:21,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 2.0) internal successors, (46), 16 states have internal predecessors, (46), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:33:21,020 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2025-01-10 02:33:21,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-01-10 02:33:21,021 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:21,021 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-01-10 02:33:21,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 02:33:21,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:21,223 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:21,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:21,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1350016289, now seen corresponding path program 1 times [2025-01-10 02:33:21,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:21,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745208119] [2025-01-10 02:33:21,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:33:21,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:21,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-01-10 02:33:21,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-01-10 02:33:21,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:33:21,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-10 02:33:21,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:21,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745208119] [2025-01-10 02:33:21,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745208119] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:33:21,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891370107] [2025-01-10 02:33:21,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:33:21,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:21,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:33:21,281 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:33:21,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 02:33:21,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-01-10 02:33:21,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-01-10 02:33:21,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:33:21,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:21,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-10 02:33:21,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:33:21,457 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 02:33:21,457 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:33:21,752 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 02:33:21,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891370107] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:33:21,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:33:21,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 14, 15] total 29 [2025-01-10 02:33:21,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190398478] [2025-01-10 02:33:21,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:33:21,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-01-10 02:33:21,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:21,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-01-10 02:33:21,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2025-01-10 02:33:21,754 INFO L87 Difference]: Start difference. First operand 146 states and 163 transitions. Second operand has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-01-10 02:33:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:22,092 INFO L93 Difference]: Finished difference Result 208 states and 227 transitions. [2025-01-10 02:33:22,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-10 02:33:22,092 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 40 [2025-01-10 02:33:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:22,093 INFO L225 Difference]: With dead ends: 208 [2025-01-10 02:33:22,093 INFO L226 Difference]: Without dead ends: 142 [2025-01-10 02:33:22,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=1334, Unknown=0, NotChecked=0, Total=1640 [2025-01-10 02:33:22,095 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 160 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:22,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 430 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 02:33:22,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2025-01-10 02:33:22,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2025-01-10 02:33:22,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 106 states have internal predecessors, (119), 12 states have call successors, (12), 11 states have call predecessors, (12), 13 states have return successors, (16), 16 states have call predecessors, (16), 11 states have call successors, (16) [2025-01-10 02:33:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 147 transitions. [2025-01-10 02:33:22,106 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 147 transitions. Word has length 40 [2025-01-10 02:33:22,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:22,106 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 147 transitions. [2025-01-10 02:33:22,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-01-10 02:33:22,106 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 147 transitions. [2025-01-10 02:33:22,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-01-10 02:33:22,107 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:22,107 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2025-01-10 02:33:22,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 02:33:22,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-01-10 02:33:22,312 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:22,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:22,313 INFO L85 PathProgramCache]: Analyzing trace with hash -91829804, now seen corresponding path program 3 times [2025-01-10 02:33:22,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:22,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342999698] [2025-01-10 02:33:22,313 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 02:33:22,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:22,317 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 56 statements into 11 equivalence classes. [2025-01-10 02:33:22,346 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 56 of 56 statements. [2025-01-10 02:33:22,346 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-01-10 02:33:22,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:22,671 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:22,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:22,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342999698] [2025-01-10 02:33:22,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342999698] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:33:22,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526339463] [2025-01-10 02:33:22,672 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 02:33:22,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:22,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:33:22,674 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:33:22,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 02:33:22,696 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 56 statements into 11 equivalence classes. [2025-01-10 02:33:22,710 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 56 of 56 statements. [2025-01-10 02:33:22,711 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-01-10 02:33:22,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:22,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-10 02:33:22,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:33:22,795 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:22,795 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:33:23,328 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:23,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526339463] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:33:23,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:33:23,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 50 [2025-01-10 02:33:23,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893101611] [2025-01-10 02:33:23,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:33:23,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2025-01-10 02:33:23,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:23,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2025-01-10 02:33:23,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=608, Invalid=1942, Unknown=0, NotChecked=0, Total=2550 [2025-01-10 02:33:23,331 INFO L87 Difference]: Start difference. First operand 134 states and 147 transitions. Second operand has 51 states, 47 states have (on average 2.0) internal successors, (94), 28 states have internal predecessors, (94), 24 states have call successors, (24), 23 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:33:23,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:23,936 INFO L93 Difference]: Finished difference Result 438 states and 470 transitions. [2025-01-10 02:33:23,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-01-10 02:33:23,936 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 47 states have (on average 2.0) internal successors, (94), 28 states have internal predecessors, (94), 24 states have call successors, (24), 23 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2025-01-10 02:33:23,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:23,938 INFO L225 Difference]: With dead ends: 438 [2025-01-10 02:33:23,938 INFO L226 Difference]: Without dead ends: 386 [2025-01-10 02:33:23,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1391, Invalid=3865, Unknown=0, NotChecked=0, Total=5256 [2025-01-10 02:33:23,940 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 771 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:23,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 556 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 02:33:23,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2025-01-10 02:33:23,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 364. [2025-01-10 02:33:23,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 291 states have (on average 1.120274914089347) internal successors, (326), 290 states have internal predecessors, (326), 24 states have call successors, (24), 23 states have call predecessors, (24), 47 states have return successors, (50), 50 states have call predecessors, (50), 23 states have call successors, (50) [2025-01-10 02:33:23,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 400 transitions. [2025-01-10 02:33:23,958 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 400 transitions. Word has length 56 [2025-01-10 02:33:23,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:23,958 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 400 transitions. [2025-01-10 02:33:23,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 47 states have (on average 2.0) internal successors, (94), 28 states have internal predecessors, (94), 24 states have call successors, (24), 23 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:33:23,958 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 400 transitions. [2025-01-10 02:33:23,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-01-10 02:33:23,959 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:23,960 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2025-01-10 02:33:23,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 02:33:24,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:24,164 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:24,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:24,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1351701622, now seen corresponding path program 2 times [2025-01-10 02:33:24,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:24,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749515658] [2025-01-10 02:33:24,164 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 02:33:24,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:24,168 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 75 statements into 2 equivalence classes. [2025-01-10 02:33:24,177 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-01-10 02:33:24,177 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 02:33:24,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:24,501 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 299 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-10 02:33:24,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:24,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749515658] [2025-01-10 02:33:24,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749515658] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:33:24,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163607284] [2025-01-10 02:33:24,502 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 02:33:24,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:24,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:33:24,506 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:33:24,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-10 02:33:24,526 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 75 statements into 2 equivalence classes. [2025-01-10 02:33:24,544 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-01-10 02:33:24,545 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 02:33:24,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:24,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-01-10 02:33:24,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:33:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 297 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-10 02:33:24,663 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:33:25,178 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 303 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-10 02:33:25,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163607284] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:33:25,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:33:25,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 27] total 40 [2025-01-10 02:33:25,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178429509] [2025-01-10 02:33:25,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:33:25,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2025-01-10 02:33:25,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:25,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2025-01-10 02:33:25,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=1263, Unknown=0, NotChecked=0, Total=1560 [2025-01-10 02:33:25,186 INFO L87 Difference]: Start difference. First operand 364 states and 400 transitions. Second operand has 40 states, 37 states have (on average 2.324324324324324) internal successors, (86), 27 states have internal predecessors, (86), 19 states have call successors, (20), 14 states have call predecessors, (20), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2025-01-10 02:33:25,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:25,641 INFO L93 Difference]: Finished difference Result 457 states and 492 transitions. [2025-01-10 02:33:25,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-01-10 02:33:25,641 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 37 states have (on average 2.324324324324324) internal successors, (86), 27 states have internal predecessors, (86), 19 states have call successors, (20), 14 states have call predecessors, (20), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 75 [2025-01-10 02:33:25,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:25,643 INFO L225 Difference]: With dead ends: 457 [2025-01-10 02:33:25,643 INFO L226 Difference]: Without dead ends: 356 [2025-01-10 02:33:25,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 122 SyntacticMatches, 15 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1009 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=644, Invalid=2326, Unknown=0, NotChecked=0, Total=2970 [2025-01-10 02:33:25,645 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 325 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:25,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 497 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 02:33:25,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-01-10 02:33:25,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 324. [2025-01-10 02:33:25,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 259 states have (on average 1.1196911196911197) internal successors, (290), 258 states have internal predecessors, (290), 24 states have call successors, (24), 23 states have call predecessors, (24), 39 states have return successors, (42), 42 states have call predecessors, (42), 23 states have call successors, (42) [2025-01-10 02:33:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 356 transitions. [2025-01-10 02:33:25,668 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 356 transitions. Word has length 75 [2025-01-10 02:33:25,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:25,669 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 356 transitions. [2025-01-10 02:33:25,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 37 states have (on average 2.324324324324324) internal successors, (86), 27 states have internal predecessors, (86), 19 states have call successors, (20), 14 states have call predecessors, (20), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2025-01-10 02:33:25,670 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 356 transitions. [2025-01-10 02:33:25,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-01-10 02:33:25,671 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:25,672 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2025-01-10 02:33:25,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 02:33:25,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-01-10 02:33:25,872 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:25,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:25,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1206835786, now seen corresponding path program 3 times [2025-01-10 02:33:25,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:25,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726787467] [2025-01-10 02:33:25,873 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 02:33:25,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:25,881 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 95 statements into 16 equivalence classes. [2025-01-10 02:33:25,885 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 30 of 95 statements. [2025-01-10 02:33:25,888 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-10 02:33:25,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:25,985 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-01-10 02:33:25,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:25,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726787467] [2025-01-10 02:33:25,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726787467] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:33:25,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189415384] [2025-01-10 02:33:25,986 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 02:33:25,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:25,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:33:25,988 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:33:25,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 02:33:26,015 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 95 statements into 16 equivalence classes. [2025-01-10 02:33:26,022 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 30 of 95 statements. [2025-01-10 02:33:26,022 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-10 02:33:26,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:26,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 02:33:26,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:33:26,052 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-01-10 02:33:26,052 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:33:26,188 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-01-10 02:33:26,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189415384] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:33:26,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:33:26,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2025-01-10 02:33:26,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706905861] [2025-01-10 02:33:26,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:33:26,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-10 02:33:26,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:26,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-10 02:33:26,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-01-10 02:33:26,190 INFO L87 Difference]: Start difference. First operand 324 states and 356 transitions. Second operand has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2025-01-10 02:33:26,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:26,285 INFO L93 Difference]: Finished difference Result 567 states and 652 transitions. [2025-01-10 02:33:26,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 02:33:26,286 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 95 [2025-01-10 02:33:26,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:26,292 INFO L225 Difference]: With dead ends: 567 [2025-01-10 02:33:26,292 INFO L226 Difference]: Without dead ends: 566 [2025-01-10 02:33:26,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-01-10 02:33:26,293 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:26,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:33:26,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2025-01-10 02:33:26,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2025-01-10 02:33:26,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 455 states have (on average 1.0681318681318681) internal successors, (486), 450 states have internal predecessors, (486), 24 states have call successors, (24), 23 states have call predecessors, (24), 85 states have return successors, (92), 92 states have call predecessors, (92), 23 states have call successors, (92) [2025-01-10 02:33:26,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 602 transitions. [2025-01-10 02:33:26,340 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 602 transitions. Word has length 95 [2025-01-10 02:33:26,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:26,340 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 602 transitions. [2025-01-10 02:33:26,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2025-01-10 02:33:26,341 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 602 transitions. [2025-01-10 02:33:26,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-01-10 02:33:26,342 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:26,342 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1] [2025-01-10 02:33:26,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-10 02:33:26,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:26,543 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:26,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:26,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1473917420, now seen corresponding path program 4 times [2025-01-10 02:33:26,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:26,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395296448] [2025-01-10 02:33:26,544 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 02:33:26,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:26,548 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 116 statements into 2 equivalence classes. [2025-01-10 02:33:26,561 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 116 of 116 statements. [2025-01-10 02:33:26,561 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 02:33:26,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:27,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:27,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:27,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395296448] [2025-01-10 02:33:27,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395296448] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:33:27,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075795066] [2025-01-10 02:33:27,667 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 02:33:27,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:27,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:33:27,670 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:33:27,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-10 02:33:27,699 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 116 statements into 2 equivalence classes. [2025-01-10 02:33:27,724 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 116 of 116 statements. [2025-01-10 02:33:27,724 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 02:33:27,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:27,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-01-10 02:33:27,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:33:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:27,938 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:33:29,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:33:29,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075795066] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:33:29,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:33:29,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 98 [2025-01-10 02:33:29,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364842753] [2025-01-10 02:33:29,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:33:29,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2025-01-10 02:33:29,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:29,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2025-01-10 02:33:29,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2360, Invalid=7342, Unknown=0, NotChecked=0, Total=9702 [2025-01-10 02:33:29,921 INFO L87 Difference]: Start difference. First operand 566 states and 602 transitions. Second operand has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:33:30,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:30,407 INFO L93 Difference]: Finished difference Result 581 states and 602 transitions. [2025-01-10 02:33:30,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-01-10 02:33:30,407 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2025-01-10 02:33:30,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:30,409 INFO L225 Difference]: With dead ends: 581 [2025-01-10 02:33:30,409 INFO L226 Difference]: Without dead ends: 580 [2025-01-10 02:33:30,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3218 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=3827, Invalid=9513, Unknown=0, NotChecked=0, Total=13340 [2025-01-10 02:33:30,414 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 490 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:30,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 668 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 02:33:30,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-01-10 02:33:30,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 565. [2025-01-10 02:33:30,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 455 states have (on average 1.065934065934066) internal successors, (485), 449 states have internal predecessors, (485), 24 states have call successors, (24), 23 states have call predecessors, (24), 85 states have return successors, (92), 92 states have call predecessors, (92), 23 states have call successors, (92) [2025-01-10 02:33:30,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 601 transitions. [2025-01-10 02:33:30,443 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 601 transitions. Word has length 116 [2025-01-10 02:33:30,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:30,443 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 601 transitions. [2025-01-10 02:33:30,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:33:30,444 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 601 transitions. [2025-01-10 02:33:30,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-01-10 02:33:30,445 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:30,445 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1] [2025-01-10 02:33:30,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-01-10 02:33:30,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:30,649 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:30,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:30,650 INFO L85 PathProgramCache]: Analyzing trace with hash -881040522, now seen corresponding path program 4 times [2025-01-10 02:33:30,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:30,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800878656] [2025-01-10 02:33:30,650 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 02:33:30,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:30,653 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 115 statements into 2 equivalence classes. [2025-01-10 02:33:30,664 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-01-10 02:33:30,666 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 02:33:30,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:30,912 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-01-10 02:33:30,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:30,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800878656] [2025-01-10 02:33:30,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800878656] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:33:30,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316575795] [2025-01-10 02:33:30,912 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 02:33:30,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:30,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:33:30,919 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:33:30,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-10 02:33:30,946 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 115 statements into 2 equivalence classes. [2025-01-10 02:33:30,964 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-01-10 02:33:30,964 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 02:33:30,964 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:30,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-10 02:33:30,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:33:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-01-10 02:33:31,040 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:33:32,191 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-01-10 02:33:32,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316575795] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:33:32,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:33:32,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2025-01-10 02:33:32,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330099168] [2025-01-10 02:33:32,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:33:32,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-10 02:33:32,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:32,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-10 02:33:32,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2025-01-10 02:33:32,193 INFO L87 Difference]: Start difference. First operand 565 states and 601 transitions. Second operand has 32 states, 31 states have (on average 2.225806451612903) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2025-01-10 02:33:32,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:32,277 INFO L93 Difference]: Finished difference Result 1290 states and 1481 transitions. [2025-01-10 02:33:32,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-10 02:33:32,278 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.225806451612903) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) Word has length 115 [2025-01-10 02:33:32,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:32,281 INFO L225 Difference]: With dead ends: 1290 [2025-01-10 02:33:32,281 INFO L226 Difference]: Without dead ends: 1289 [2025-01-10 02:33:32,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2025-01-10 02:33:32,282 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:32,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:33:32,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2025-01-10 02:33:32,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1289. [2025-01-10 02:33:32,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1039 states have (on average 1.0288739172281038) internal successors, (1069), 1025 states have internal predecessors, (1069), 24 states have call successors, (24), 23 states have call predecessors, (24), 225 states have return successors, (240), 240 states have call predecessors, (240), 23 states have call successors, (240) [2025-01-10 02:33:32,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1333 transitions. [2025-01-10 02:33:32,334 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1333 transitions. Word has length 115 [2025-01-10 02:33:32,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:32,335 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1333 transitions. [2025-01-10 02:33:32,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.225806451612903) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2025-01-10 02:33:32,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1333 transitions. [2025-01-10 02:33:32,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-01-10 02:33:32,337 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:32,337 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1] [2025-01-10 02:33:32,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-10 02:33:32,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:32,542 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:32,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:32,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1888895242, now seen corresponding path program 5 times [2025-01-10 02:33:32,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:32,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339305539] [2025-01-10 02:33:32,543 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 02:33:32,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:32,548 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 155 statements into 16 equivalence classes. [2025-01-10 02:33:32,573 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 155 of 155 statements. [2025-01-10 02:33:32,573 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-01-10 02:33:32,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:33,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-01-10 02:33:33,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:33,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339305539] [2025-01-10 02:33:33,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339305539] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:33:33,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011673295] [2025-01-10 02:33:33,109 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 02:33:33,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:33,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:33:33,111 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:33:33,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-10 02:33:33,155 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 155 statements into 16 equivalence classes. [2025-01-10 02:33:33,190 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 155 of 155 statements. [2025-01-10 02:33:33,190 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-01-10 02:33:33,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:33,191 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-01-10 02:33:33,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:33:33,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-01-10 02:33:33,278 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:33:43,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-01-10 02:33:43,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011673295] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:33:43,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:33:43,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 61 [2025-01-10 02:33:43,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538401294] [2025-01-10 02:33:43,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:33:43,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2025-01-10 02:33:43,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:33:43,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2025-01-10 02:33:43,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=991, Invalid=2791, Unknown=0, NotChecked=0, Total=3782 [2025-01-10 02:33:43,085 INFO L87 Difference]: Start difference. First operand 1289 states and 1333 transitions. Second operand has 62 states, 61 states have (on average 2.098360655737705) internal successors, (128), 62 states have internal predecessors, (128), 1 states have call successors, (2), 1 states have call predecessors, (2), 30 states have return successors, (30), 30 states have call predecessors, (30), 1 states have call successors, (30) [2025-01-10 02:33:43,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:33:43,293 INFO L93 Difference]: Finished difference Result 3098 states and 3509 transitions. [2025-01-10 02:33:43,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-01-10 02:33:43,293 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 2.098360655737705) internal successors, (128), 62 states have internal predecessors, (128), 1 states have call successors, (2), 1 states have call predecessors, (2), 30 states have return successors, (30), 30 states have call predecessors, (30), 1 states have call successors, (30) Word has length 155 [2025-01-10 02:33:43,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:33:43,300 INFO L225 Difference]: With dead ends: 3098 [2025-01-10 02:33:43,301 INFO L226 Difference]: Without dead ends: 1495 [2025-01-10 02:33:43,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=991, Invalid=2791, Unknown=0, NotChecked=0, Total=3782 [2025-01-10 02:33:43,306 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:33:43,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:33:43,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2025-01-10 02:33:43,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1495. [2025-01-10 02:33:43,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1208 states have (on average 1.0190397350993377) internal successors, (1231), 1187 states have internal predecessors, (1231), 24 states have call successors, (24), 23 states have call predecessors, (24), 262 states have return successors, (284), 284 states have call predecessors, (284), 23 states have call successors, (284) [2025-01-10 02:33:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1539 transitions. [2025-01-10 02:33:43,413 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1539 transitions. Word has length 155 [2025-01-10 02:33:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:33:43,413 INFO L471 AbstractCegarLoop]: Abstraction has 1495 states and 1539 transitions. [2025-01-10 02:33:43,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 2.098360655737705) internal successors, (128), 62 states have internal predecessors, (128), 1 states have call successors, (2), 1 states have call predecessors, (2), 30 states have return successors, (30), 30 states have call predecessors, (30), 1 states have call successors, (30) [2025-01-10 02:33:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1539 transitions. [2025-01-10 02:33:43,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2025-01-10 02:33:43,428 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:33:43,429 INFO L218 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 30, 1, 1, 1, 1, 1] [2025-01-10 02:33:43,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-10 02:33:43,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-10 02:33:43,629 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 02:33:43,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:33:43,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1652786442, now seen corresponding path program 6 times [2025-01-10 02:33:43,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:33:43,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098506858] [2025-01-10 02:33:43,631 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-10 02:33:43,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:33:43,653 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 315 statements into 32 equivalence classes. [2025-01-10 02:33:43,758 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) and asserted 315 of 315 statements. [2025-01-10 02:33:43,758 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2025-01-10 02:33:43,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:45,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4712 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 2387 trivial. 0 not checked. [2025-01-10 02:33:45,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:33:45,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098506858] [2025-01-10 02:33:45,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098506858] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:33:45,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086466078] [2025-01-10 02:33:45,613 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-10 02:33:45,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:33:45,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:33:45,615 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:33:45,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-10 02:33:45,774 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 315 statements into 32 equivalence classes. [2025-01-10 02:33:45,843 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) and asserted 315 of 315 statements. [2025-01-10 02:33:45,843 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2025-01-10 02:33:45,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:33:45,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 66 conjuncts are in the unsatisfiable core [2025-01-10 02:33:45,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:33:47,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4712 backedges. 2325 proven. 152 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2025-01-10 02:33:47,188 INFO L312 TraceCheckSpWp]: Computing backward predicates...