./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 c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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-?-c00e63d-m [2025-02-06 14:32:33,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 14:32:33,928 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 14:32:33,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 14:32:33,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 14:32:33,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 14:32:33,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 14:32:33,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 14:32:33,961 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 14:32:33,961 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 14:32:33,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 14:32:33,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 14:32:33,962 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 14:32:33,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 14:32:33,963 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 14:32:33,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 14:32:33,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 14:32:33,964 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 14:32:33,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 14:32:33,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 14:32:33,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 14:32:33,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 14:32:33,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 14:32:33,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 14:32:33,965 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 14:32:33,965 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 14:32:33,965 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 14:32:33,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 14:32:33,965 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 14:32:33,965 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 14:32:33,965 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 14:32:33,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 14:32:33,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 14:32:33,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 14:32:33,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:32:33,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 14:32:33,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 14:32:33,967 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 14:32:33,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 14:32:33,967 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 14:32:33,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 14:32:33,967 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 14:32:33,967 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 14:32:33,967 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 14:32:33,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 14:32:33,967 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 [2025-02-06 14:32:34,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 14:32:34,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 14:32:34,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 14:32:34,255 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 14:32:34,256 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 14:32:34,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c [2025-02-06 14:32:35,550 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9c57b4ae4/2a4018f17ec4403b8cbc17af66a8a196/FLAG8e3112aea [2025-02-06 14:32:35,791 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 14:32:35,796 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i15_o15-1.c [2025-02-06 14:32:35,807 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9c57b4ae4/2a4018f17ec4403b8cbc17af66a8a196/FLAG8e3112aea [2025-02-06 14:32:35,860 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9c57b4ae4/2a4018f17ec4403b8cbc17af66a8a196 [2025-02-06 14:32:35,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 14:32:35,869 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 14:32:35,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 14:32:35,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 14:32:35,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 14:32:35,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:32:35" (1/1) ... [2025-02-06 14:32:35,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747320c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:35, skipping insertion in model container [2025-02-06 14:32:35,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:32:35" (1/1) ... [2025-02-06 14:32:35,902 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 14:32:36,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:32:36,039 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 14:32:36,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:32:36,063 INFO L204 MainTranslator]: Completed translation [2025-02-06 14:32:36,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36 WrapperNode [2025-02-06 14:32:36,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 14:32:36,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 14:32:36,065 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 14:32:36,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 14:32:36,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (1/1) ... [2025-02-06 14:32:36,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (1/1) ... [2025-02-06 14:32:36,088 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2025-02-06 14:32:36,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 14:32:36,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 14:32:36,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 14:32:36,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 14:32:36,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (1/1) ... [2025-02-06 14:32:36,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (1/1) ... [2025-02-06 14:32:36,097 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (1/1) ... [2025-02-06 14:32:36,108 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 14:32:36,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (1/1) ... [2025-02-06 14:32:36,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (1/1) ... [2025-02-06 14:32:36,114 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (1/1) ... [2025-02-06 14:32:36,115 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (1/1) ... [2025-02-06 14:32:36,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (1/1) ... [2025-02-06 14:32:36,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (1/1) ... [2025-02-06 14:32:36,117 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 14:32:36,117 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 14:32:36,117 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 14:32:36,119 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 14:32:36,120 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (1/1) ... [2025-02-06 14:32:36,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:32:36,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:36,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 14:32:36,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 14:32:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 14:32:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 14:32:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 14:32:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 14:32:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure id [2025-02-06 14:32:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2025-02-06 14:32:36,222 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 14:32:36,224 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 14:32:36,300 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L8: havoc #t~ret4; [2025-02-06 14:32:36,305 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-02-06 14:32:36,306 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 14:32:36,317 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 14:32:36,317 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 14:32:36,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:32:36 BoogieIcfgContainer [2025-02-06 14:32:36,318 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 14:32:36,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 14:32:36,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 14:32:36,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 14:32:36,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:32:35" (1/3) ... [2025-02-06 14:32:36,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b94e689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:32:36, skipping insertion in model container [2025-02-06 14:32:36,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:36" (2/3) ... [2025-02-06 14:32:36,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b94e689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:32:36, skipping insertion in model container [2025-02-06 14:32:36,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:32:36" (3/3) ... [2025-02-06 14:32:36,330 INFO L128 eAbstractionObserver]: Analyzing ICFG id_i15_o15-1.c [2025-02-06 14:32:36,342 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 14:32:36,344 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. [2025-02-06 14:32:36,381 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 14:32:36,391 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;@1485daf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 14:32:36,391 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-06 14:32:36,395 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) [2025-02-06 14:32:36,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-06 14:32:36,400 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:36,400 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 14:32:36,401 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:36,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:36,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1123769116, now seen corresponding path program 1 times [2025-02-06 14:32:36,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:36,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006224257] [2025-02-06 14:32:36,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:36,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:36,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 14:32:36,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 14:32:36,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:36,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:36,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:36,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006224257] [2025-02-06 14:32:36,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006224257] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:36,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:32:36,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 14:32:36,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841426382] [2025-02-06 14:32:36,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:36,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:32:36,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:36,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:32:36,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:32:36,634 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) [2025-02-06 14:32:36,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:36,730 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2025-02-06 14:32:36,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:32:36,733 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 [2025-02-06 14:32:36,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:36,738 INFO L225 Difference]: With dead ends: 46 [2025-02-06 14:32:36,739 INFO L226 Difference]: Without dead ends: 27 [2025-02-06 14:32:36,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:32:36,745 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, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:36,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 69 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:32:36,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-02-06 14:32:36,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2025-02-06 14:32:36,781 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) [2025-02-06 14:32:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2025-02-06 14:32:36,787 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 6 [2025-02-06 14:32:36,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:36,787 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2025-02-06 14:32:36,787 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) [2025-02-06 14:32:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2025-02-06 14:32:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-06 14:32:36,789 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:36,789 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:36,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 14:32:36,790 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:36,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:36,790 INFO L85 PathProgramCache]: Analyzing trace with hash -638284688, now seen corresponding path program 1 times [2025-02-06 14:32:36,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:36,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809445057] [2025-02-06 14:32:36,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:36,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:36,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 14:32:36,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 14:32:36,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:36,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:36,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:36,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:36,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809445057] [2025-02-06 14:32:36,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809445057] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:36,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559904698] [2025-02-06 14:32:36,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:36,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:36,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:36,946 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:36,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 14:32:36,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 14:32:36,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 14:32:36,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:36,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:36,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 14:32:36,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:37,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:37,067 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:37,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559904698] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:37,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:37,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2025-02-06 14:32:37,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700892562] [2025-02-06 14:32:37,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:37,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 14:32:37,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:37,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 14:32:37,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2025-02-06 14:32:37,181 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) [2025-02-06 14:32:37,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:37,367 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2025-02-06 14:32:37,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 14:32:37,368 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 [2025-02-06 14:32:37,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:37,370 INFO L225 Difference]: With dead ends: 80 [2025-02-06 14:32:37,371 INFO L226 Difference]: Without dead ends: 72 [2025-02-06 14:32:37,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2025-02-06 14:32:37,373 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 [2025-02-06 14:32:37,373 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] [2025-02-06 14:32:37,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2025-02-06 14:32:37,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55. [2025-02-06 14:32:37,385 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) [2025-02-06 14:32:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2025-02-06 14:32:37,387 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 11 [2025-02-06 14:32:37,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:37,387 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2025-02-06 14:32:37,387 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) [2025-02-06 14:32:37,387 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2025-02-06 14:32:37,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 14:32:37,387 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:37,387 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:37,396 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 [2025-02-06 14:32:37,588 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 [2025-02-06 14:32:37,588 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:37,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:37,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1688011139, now seen corresponding path program 1 times [2025-02-06 14:32:37,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:37,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851471160] [2025-02-06 14:32:37,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:37,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:37,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 14:32:37,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 14:32:37,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:37,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:37,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:37,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:37,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851471160] [2025-02-06 14:32:37,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851471160] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:37,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042239938] [2025-02-06 14:32:37,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:37,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:37,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:37,701 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:37,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 14:32:37,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 14:32:37,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 14:32:37,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:37,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:37,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 14:32:37,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:37,786 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:37,786 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:32:37,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042239938] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:37,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:32:37,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2025-02-06 14:32:37,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801711560] [2025-02-06 14:32:37,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:37,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 14:32:37,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:37,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 14:32:37,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:32:37,788 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) [2025-02-06 14:32:37,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:37,849 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2025-02-06 14:32:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 14:32:37,849 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 [2025-02-06 14:32:37,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:37,851 INFO L225 Difference]: With dead ends: 63 [2025-02-06 14:32:37,851 INFO L226 Difference]: Without dead ends: 62 [2025-02-06 14:32:37,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:32:37,851 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 [2025-02-06 14:32:37,852 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] [2025-02-06 14:32:37,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2025-02-06 14:32:37,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2025-02-06 14:32:37,867 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) [2025-02-06 14:32:37,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2025-02-06 14:32:37,870 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 12 [2025-02-06 14:32:37,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:37,871 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2025-02-06 14:32:37,871 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) [2025-02-06 14:32:37,871 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2025-02-06 14:32:37,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-06 14:32:37,871 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:37,872 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:37,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 14:32:38,072 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 [2025-02-06 14:32:38,073 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:38,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:38,073 INFO L85 PathProgramCache]: Analyzing trace with hash -16539686, now seen corresponding path program 1 times [2025-02-06 14:32:38,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:38,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361561589] [2025-02-06 14:32:38,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:38,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:38,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 14:32:38,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 14:32:38,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:38,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:38,130 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 14:32:38,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:38,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361561589] [2025-02-06 14:32:38,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361561589] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:38,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:32:38,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 14:32:38,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491221235] [2025-02-06 14:32:38,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:38,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 14:32:38,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:38,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 14:32:38,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:32:38,133 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) [2025-02-06 14:32:38,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:38,152 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2025-02-06 14:32:38,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 14:32:38,152 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 [2025-02-06 14:32:38,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:38,153 INFO L225 Difference]: With dead ends: 74 [2025-02-06 14:32:38,153 INFO L226 Difference]: Without dead ends: 72 [2025-02-06 14:32:38,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:32:38,154 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 [2025-02-06 14:32:38,154 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] [2025-02-06 14:32:38,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2025-02-06 14:32:38,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2025-02-06 14:32:38,167 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) [2025-02-06 14:32:38,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2025-02-06 14:32:38,168 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2025-02-06 14:32:38,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:38,169 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2025-02-06 14:32:38,169 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) [2025-02-06 14:32:38,169 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2025-02-06 14:32:38,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-06 14:32:38,170 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:38,170 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:38,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 14:32:38,170 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:38,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:38,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1336297931, now seen corresponding path program 1 times [2025-02-06 14:32:38,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:38,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345465171] [2025-02-06 14:32:38,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:38,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:38,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 14:32:38,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 14:32:38,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:38,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:38,219 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 14:32:38,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:38,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345465171] [2025-02-06 14:32:38,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345465171] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:38,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:32:38,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 14:32:38,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802723726] [2025-02-06 14:32:38,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:38,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 14:32:38,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:38,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 14:32:38,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:32:38,220 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) [2025-02-06 14:32:38,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:38,237 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2025-02-06 14:32:38,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 14:32:38,239 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 [2025-02-06 14:32:38,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:38,240 INFO L225 Difference]: With dead ends: 72 [2025-02-06 14:32:38,240 INFO L226 Difference]: Without dead ends: 71 [2025-02-06 14:32:38,240 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 [2025-02-06 14:32:38,240 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 [2025-02-06 14:32:38,241 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] [2025-02-06 14:32:38,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2025-02-06 14:32:38,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-02-06 14:32:38,254 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) [2025-02-06 14:32:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2025-02-06 14:32:38,257 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 24 [2025-02-06 14:32:38,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:38,257 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2025-02-06 14:32:38,257 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) [2025-02-06 14:32:38,257 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2025-02-06 14:32:38,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-02-06 14:32:38,258 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:38,258 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2025-02-06 14:32:38,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 14:32:38,259 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:38,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:38,259 INFO L85 PathProgramCache]: Analyzing trace with hash -543218660, now seen corresponding path program 2 times [2025-02-06 14:32:38,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:38,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192961104] [2025-02-06 14:32:38,260 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:38,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:38,266 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-02-06 14:32:38,273 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 14:32:38,274 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:38,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:38,482 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:38,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:38,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192961104] [2025-02-06 14:32:38,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192961104] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:38,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094965903] [2025-02-06 14:32:38,483 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:38,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:38,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:38,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:38,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 14:32:38,508 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-02-06 14:32:38,518 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 14:32:38,519 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:38,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:38,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 14:32:38,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:38,612 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:38,612 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:38,872 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:38,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094965903] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:38,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:38,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2025-02-06 14:32:38,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751396898] [2025-02-06 14:32:38,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:38,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-02-06 14:32:38,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:38,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-02-06 14:32:38,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2025-02-06 14:32:38,878 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) [2025-02-06 14:32:39,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:39,247 INFO L93 Difference]: Finished difference Result 188 states and 204 transitions. [2025-02-06 14:32:39,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-06 14:32:39,247 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 [2025-02-06 14:32:39,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:39,249 INFO L225 Difference]: With dead ends: 188 [2025-02-06 14:32:39,249 INFO L226 Difference]: Without dead ends: 156 [2025-02-06 14:32:39,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=991, Unknown=0, NotChecked=0, Total=1332 [2025-02-06 14:32:39,250 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, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:39,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 239 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:32:39,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2025-02-06 14:32:39,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2025-02-06 14:32:39,277 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) [2025-02-06 14:32:39,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2025-02-06 14:32:39,280 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 26 [2025-02-06 14:32:39,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:39,282 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2025-02-06 14:32:39,283 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) [2025-02-06 14:32:39,283 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2025-02-06 14:32:39,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-02-06 14:32:39,284 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:39,284 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:39,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 14:32:39,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:39,484 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:39,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:39,485 INFO L85 PathProgramCache]: Analyzing trace with hash -98645244, now seen corresponding path program 1 times [2025-02-06 14:32:39,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:39,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109182522] [2025-02-06 14:32:39,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:39,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:39,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 14:32:39,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 14:32:39,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:39,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:39,562 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-06 14:32:39,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:39,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109182522] [2025-02-06 14:32:39,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109182522] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:39,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058113406] [2025-02-06 14:32:39,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:39,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:39,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:39,565 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:39,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 14:32:39,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 14:32:39,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 14:32:39,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:39,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:39,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 14:32:39,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:39,776 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 14:32:39,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:40,155 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 14:32:40,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058113406] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:40,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:40,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 14, 15] total 29 [2025-02-06 14:32:40,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349402035] [2025-02-06 14:32:40,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:40,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-02-06 14:32:40,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:40,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-02-06 14:32:40,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2025-02-06 14:32:40,161 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) [2025-02-06 14:32:40,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:40,606 INFO L93 Difference]: Finished difference Result 208 states and 227 transitions. [2025-02-06 14:32:40,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-06 14:32:40,607 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 [2025-02-06 14:32:40,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:40,608 INFO L225 Difference]: With dead ends: 208 [2025-02-06 14:32:40,608 INFO L226 Difference]: Without dead ends: 142 [2025-02-06 14:32:40,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=306, Invalid=1334, Unknown=0, NotChecked=0, Total=1640 [2025-02-06 14:32:40,610 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 160 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2025-02-06 14:32:40,614 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] [2025-02-06 14:32:40,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2025-02-06 14:32:40,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2025-02-06 14:32:40,635 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) [2025-02-06 14:32:40,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 147 transitions. [2025-02-06 14:32:40,639 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 147 transitions. Word has length 40 [2025-02-06 14:32:40,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:40,639 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 147 transitions. [2025-02-06 14:32:40,639 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) [2025-02-06 14:32:40,639 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 147 transitions. [2025-02-06 14:32:40,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-02-06 14:32:40,640 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:40,640 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2025-02-06 14:32:40,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 14:32:40,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-06 14:32:40,841 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:40,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:40,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1018977892, now seen corresponding path program 3 times [2025-02-06 14:32:40,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:40,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669607588] [2025-02-06 14:32:40,842 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:32:40,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:40,847 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 56 statements into 11 equivalence classes. [2025-02-06 14:32:40,860 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 56 of 56 statements. [2025-02-06 14:32:40,860 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 14:32:40,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:41,324 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:41,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:41,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669607588] [2025-02-06 14:32:41,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669607588] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:41,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580860978] [2025-02-06 14:32:41,324 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:32:41,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:41,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:41,327 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:41,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 14:32:41,358 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 56 statements into 11 equivalence classes. [2025-02-06 14:32:41,379 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 56 of 56 statements. [2025-02-06 14:32:41,379 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 14:32:41,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:41,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-06 14:32:41,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:41,519 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:41,519 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:42,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580860978] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:42,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:42,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 50 [2025-02-06 14:32:42,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557492928] [2025-02-06 14:32:42,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:42,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2025-02-06 14:32:42,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:42,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2025-02-06 14:32:42,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=608, Invalid=1942, Unknown=0, NotChecked=0, Total=2550 [2025-02-06 14:32:42,148 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) [2025-02-06 14:32:42,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:42,966 INFO L93 Difference]: Finished difference Result 438 states and 470 transitions. [2025-02-06 14:32:42,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-02-06 14:32:42,968 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 [2025-02-06 14:32:42,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:42,971 INFO L225 Difference]: With dead ends: 438 [2025-02-06 14:32:42,971 INFO L226 Difference]: Without dead ends: 386 [2025-02-06 14:32:42,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1391, Invalid=3865, Unknown=0, NotChecked=0, Total=5256 [2025-02-06 14:32:42,976 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 771 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:42,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 556 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:32:42,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2025-02-06 14:32:43,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 364. [2025-02-06 14:32:43,010 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) [2025-02-06 14:32:43,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 400 transitions. [2025-02-06 14:32:43,012 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 400 transitions. Word has length 56 [2025-02-06 14:32:43,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:43,013 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 400 transitions. [2025-02-06 14:32:43,013 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) [2025-02-06 14:32:43,013 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 400 transitions. [2025-02-06 14:32:43,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-06 14:32:43,017 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:43,017 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2025-02-06 14:32:43,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 14:32:43,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:43,218 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:43,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:43,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2136562119, now seen corresponding path program 2 times [2025-02-06 14:32:43,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:43,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067048408] [2025-02-06 14:32:43,219 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:43,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:43,226 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 75 statements into 2 equivalence classes. [2025-02-06 14:32:43,244 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-02-06 14:32:43,245 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:43,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 299 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 14:32:43,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:43,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067048408] [2025-02-06 14:32:43,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067048408] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:43,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936515348] [2025-02-06 14:32:43,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:43,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:43,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:43,728 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:43,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 14:32:43,752 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 75 statements into 2 equivalence classes. [2025-02-06 14:32:43,769 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-02-06 14:32:43,769 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:43,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:43,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-06 14:32:43,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 297 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 14:32:43,923 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:44,568 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 303 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 14:32:44,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936515348] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:44,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:44,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 27] total 40 [2025-02-06 14:32:44,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059293028] [2025-02-06 14:32:44,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:44,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2025-02-06 14:32:44,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:44,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2025-02-06 14:32:44,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=1263, Unknown=0, NotChecked=0, Total=1560 [2025-02-06 14:32:44,575 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) [2025-02-06 14:32:45,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:45,039 INFO L93 Difference]: Finished difference Result 457 states and 492 transitions. [2025-02-06 14:32:45,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-02-06 14:32:45,039 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 [2025-02-06 14:32:45,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:45,042 INFO L225 Difference]: With dead ends: 457 [2025-02-06 14:32:45,042 INFO L226 Difference]: Without dead ends: 356 [2025-02-06 14:32:45,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 122 SyntacticMatches, 15 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1009 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=644, Invalid=2326, Unknown=0, NotChecked=0, Total=2970 [2025-02-06 14:32:45,049 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 [2025-02-06 14:32:45,049 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] [2025-02-06 14:32:45,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-02-06 14:32:45,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 324. [2025-02-06 14:32:45,078 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) [2025-02-06 14:32:45,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 356 transitions. [2025-02-06 14:32:45,081 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 356 transitions. Word has length 75 [2025-02-06 14:32:45,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:45,081 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 356 transitions. [2025-02-06 14:32:45,081 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) [2025-02-06 14:32:45,082 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 356 transitions. [2025-02-06 14:32:45,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-02-06 14:32:45,084 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:45,084 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2025-02-06 14:32:45,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 14:32:45,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-02-06 14:32:45,285 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:45,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:45,286 INFO L85 PathProgramCache]: Analyzing trace with hash 343093447, now seen corresponding path program 3 times [2025-02-06 14:32:45,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:45,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650704670] [2025-02-06 14:32:45,286 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:32:45,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:45,291 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 95 statements into 16 equivalence classes. [2025-02-06 14:32:45,297 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 30 of 95 statements. [2025-02-06 14:32:45,297 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-06 14:32:45,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:45,412 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-02-06 14:32:45,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:45,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650704670] [2025-02-06 14:32:45,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650704670] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:45,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293321263] [2025-02-06 14:32:45,413 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:32:45,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:45,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:45,415 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:45,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 14:32:45,444 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 95 statements into 16 equivalence classes. [2025-02-06 14:32:45,453 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 30 of 95 statements. [2025-02-06 14:32:45,454 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-06 14:32:45,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:45,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 14:32:45,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:45,495 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-02-06 14:32:45,495 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:45,657 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-02-06 14:32:45,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293321263] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:45,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:45,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2025-02-06 14:32:45,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716529317] [2025-02-06 14:32:45,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:45,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-06 14:32:45,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:45,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-06 14:32:45,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-02-06 14:32:45,659 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) [2025-02-06 14:32:45,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:45,711 INFO L93 Difference]: Finished difference Result 567 states and 652 transitions. [2025-02-06 14:32:45,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 14:32:45,711 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 [2025-02-06 14:32:45,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:45,714 INFO L225 Difference]: With dead ends: 567 [2025-02-06 14:32:45,714 INFO L226 Difference]: Without dead ends: 566 [2025-02-06 14:32:45,715 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 [2025-02-06 14:32:45,715 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, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:45,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:32:45,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2025-02-06 14:32:45,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2025-02-06 14:32:45,744 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) [2025-02-06 14:32:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 602 transitions. [2025-02-06 14:32:45,748 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 602 transitions. Word has length 95 [2025-02-06 14:32:45,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:45,749 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 602 transitions. [2025-02-06 14:32:45,749 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) [2025-02-06 14:32:45,750 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 602 transitions. [2025-02-06 14:32:45,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-02-06 14:32:45,752 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:45,752 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1] [2025-02-06 14:32:45,759 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 [2025-02-06 14:32:45,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:45,953 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:45,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:45,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1377387364, now seen corresponding path program 4 times [2025-02-06 14:32:45,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:45,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424226476] [2025-02-06 14:32:45,954 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 14:32:45,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:45,970 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 116 statements into 2 equivalence classes. [2025-02-06 14:32:45,999 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 116 of 116 statements. [2025-02-06 14:32:45,999 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 14:32:45,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:47,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:47,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:47,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424226476] [2025-02-06 14:32:47,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424226476] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:47,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637030208] [2025-02-06 14:32:47,221 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 14:32:47,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:47,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:47,223 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:47,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 14:32:47,251 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 116 statements into 2 equivalence classes. [2025-02-06 14:32:47,281 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 116 of 116 statements. [2025-02-06 14:32:47,281 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 14:32:47,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:47,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-02-06 14:32:47,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:47,521 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:49,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:49,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637030208] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:49,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:49,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 98 [2025-02-06 14:32:49,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142922926] [2025-02-06 14:32:49,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:49,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2025-02-06 14:32:49,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:49,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2025-02-06 14:32:49,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2360, Invalid=7342, Unknown=0, NotChecked=0, Total=9702 [2025-02-06 14:32:49,375 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) [2025-02-06 14:32:49,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:49,887 INFO L93 Difference]: Finished difference Result 581 states and 602 transitions. [2025-02-06 14:32:49,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-02-06 14:32:49,888 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 [2025-02-06 14:32:49,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:49,891 INFO L225 Difference]: With dead ends: 581 [2025-02-06 14:32:49,891 INFO L226 Difference]: Without dead ends: 580 [2025-02-06 14:32:49,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3218 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3827, Invalid=9513, Unknown=0, NotChecked=0, Total=13340 [2025-02-06 14:32:49,895 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 [2025-02-06 14:32:49,895 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] [2025-02-06 14:32:49,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-02-06 14:32:49,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 565. [2025-02-06 14:32:49,929 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) [2025-02-06 14:32:49,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 601 transitions. [2025-02-06 14:32:49,932 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 601 transitions. Word has length 116 [2025-02-06 14:32:49,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:49,932 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 601 transitions. [2025-02-06 14:32:49,932 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) [2025-02-06 14:32:49,932 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 601 transitions. [2025-02-06 14:32:49,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-02-06 14:32:49,936 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:49,936 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1] [2025-02-06 14:32:49,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 14:32:50,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:50,137 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:50,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:50,137 INFO L85 PathProgramCache]: Analyzing trace with hash 709442823, now seen corresponding path program 4 times [2025-02-06 14:32:50,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:50,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191150617] [2025-02-06 14:32:50,137 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 14:32:50,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:50,141 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 115 statements into 2 equivalence classes. [2025-02-06 14:32:50,149 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-02-06 14:32:50,150 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 14:32:50,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:50,484 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-02-06 14:32:50,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:50,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191150617] [2025-02-06 14:32:50,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191150617] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:50,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769434841] [2025-02-06 14:32:50,484 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 14:32:50,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:50,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:50,488 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:50,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 14:32:50,521 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 115 statements into 2 equivalence classes. [2025-02-06 14:32:50,545 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-02-06 14:32:50,545 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 14:32:50,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:50,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-06 14:32:50,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-02-06 14:32:50,605 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:51,910 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-02-06 14:32:51,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769434841] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:51,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:51,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2025-02-06 14:32:51,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941570583] [2025-02-06 14:32:51,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:51,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-02-06 14:32:51,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:51,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-02-06 14:32:51,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2025-02-06 14:32:51,912 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) [2025-02-06 14:32:52,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:52,039 INFO L93 Difference]: Finished difference Result 1290 states and 1481 transitions. [2025-02-06 14:32:52,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 14:32:52,040 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 [2025-02-06 14:32:52,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:52,046 INFO L225 Difference]: With dead ends: 1290 [2025-02-06 14:32:52,047 INFO L226 Difference]: Without dead ends: 1289 [2025-02-06 14:32:52,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2025-02-06 14:32:52,048 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2025-02-06 14:32:52,048 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] [2025-02-06 14:32:52,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2025-02-06 14:32:52,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1289. [2025-02-06 14:32:52,120 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) [2025-02-06 14:32:52,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1333 transitions. [2025-02-06 14:32:52,128 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1333 transitions. Word has length 115 [2025-02-06 14:32:52,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:52,128 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1333 transitions. [2025-02-06 14:32:52,128 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) [2025-02-06 14:32:52,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1333 transitions. [2025-02-06 14:32:52,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-02-06 14:32:52,132 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:52,132 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1] [2025-02-06 14:32:52,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 14:32:52,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:52,337 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:52,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:52,338 INFO L85 PathProgramCache]: Analyzing trace with hash -54299257, now seen corresponding path program 5 times [2025-02-06 14:32:52,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:52,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188005490] [2025-02-06 14:32:52,338 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 14:32:52,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:52,346 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 155 statements into 16 equivalence classes. [2025-02-06 14:32:52,375 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 155 of 155 statements. [2025-02-06 14:32:52,375 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-02-06 14:32:52,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:52,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-02-06 14:32:52,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:52,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188005490] [2025-02-06 14:32:52,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188005490] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:52,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639440497] [2025-02-06 14:32:52,973 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 14:32:52,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:52,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:52,976 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:52,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 14:32:53,033 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 155 statements into 16 equivalence classes. [2025-02-06 14:32:53,074 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 155 of 155 statements. [2025-02-06 14:32:53,074 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-02-06 14:32:53,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:53,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-02-06 14:32:53,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:53,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-02-06 14:32:53,173 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:33:03,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2025-02-06 14:33:03,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639440497] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:33:03,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:33:03,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 61 [2025-02-06 14:33:03,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368781050] [2025-02-06 14:33:03,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:33:03,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2025-02-06 14:33:03,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:33:03,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2025-02-06 14:33:03,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=991, Invalid=2791, Unknown=0, NotChecked=0, Total=3782 [2025-02-06 14:33:03,950 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) [2025-02-06 14:33:04,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:33:04,220 INFO L93 Difference]: Finished difference Result 3098 states and 3509 transitions. [2025-02-06 14:33:04,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-02-06 14:33:04,221 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 [2025-02-06 14:33:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:33:04,227 INFO L225 Difference]: With dead ends: 3098 [2025-02-06 14:33:04,228 INFO L226 Difference]: Without dead ends: 1495 [2025-02-06 14:33:04,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=991, Invalid=2791, Unknown=0, NotChecked=0, Total=3782 [2025-02-06 14:33:04,232 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 [2025-02-06 14:33:04,233 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] [2025-02-06 14:33:04,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2025-02-06 14:33:04,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1495. [2025-02-06 14:33:04,308 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) [2025-02-06 14:33:04,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1539 transitions. [2025-02-06 14:33:04,316 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1539 transitions. Word has length 155 [2025-02-06 14:33:04,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:33:04,316 INFO L471 AbstractCegarLoop]: Abstraction has 1495 states and 1539 transitions. [2025-02-06 14:33:04,316 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) [2025-02-06 14:33:04,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1539 transitions. [2025-02-06 14:33:04,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2025-02-06 14:33:04,326 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:33:04,327 INFO L218 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 30, 1, 1, 1, 1, 1] [2025-02-06 14:33:04,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 14:33:04,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-06 14:33:04,531 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:33:04,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:33:04,531 INFO L85 PathProgramCache]: Analyzing trace with hash -67190137, now seen corresponding path program 6 times [2025-02-06 14:33:04,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:33:04,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806547991] [2025-02-06 14:33:04,532 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 14:33:04,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:33:04,547 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 315 statements into 32 equivalence classes. [2025-02-06 14:33:04,612 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) and asserted 315 of 315 statements. [2025-02-06 14:33:04,613 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2025-02-06 14:33:04,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:33:06,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4712 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 2387 trivial. 0 not checked. [2025-02-06 14:33:06,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:33:06,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806547991] [2025-02-06 14:33:06,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806547991] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:33:06,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193440950] [2025-02-06 14:33:06,841 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 14:33:06,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:33:06,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:33:06,845 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:33:06,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 14:33:07,055 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 315 statements into 32 equivalence classes. [2025-02-06 14:33:07,141 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) and asserted 315 of 315 statements. [2025-02-06 14:33:07,141 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2025-02-06 14:33:07,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:33:07,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 66 conjuncts are in the unsatisfiable core [2025-02-06 14:33:07,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:33:08,560 INFO L134 CoverageAnalysis]: Checked inductivity of 4712 backedges. 2325 proven. 152 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2025-02-06 14:33:08,561 INFO L312 TraceCheckSpWp]: Computing backward predicates...