./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/Binomial.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/Binomial.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 01:31:09,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 01:31:10,066 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-01-10 01:31:10,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 01:31:10,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 01:31:10,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 01:31:10,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 01:31:10,120 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 01:31:10,121 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 01:31:10,121 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 01:31:10,121 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 01:31:10,121 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 01:31:10,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 01:31:10,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 01:31:10,121 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 01:31:10,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 01:31:10,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 01:31:10,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 01:31:10,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 01:31:10,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 01:31:10,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 01:31:10,127 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:31:10,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:31:10,127 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 01:31:10,127 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 01:31:10,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 01:31:10,128 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 01:31:10,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 01:31:10,128 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 01:31:10,128 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 01:31:10,128 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 01:31:10,128 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 01:31:10,128 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 [2025-01-10 01:31:10,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 01:31:10,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 01:31:10,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 01:31:10,621 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 01:31:10,621 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 01:31:10,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Binomial.c [2025-01-10 01:31:12,169 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b9cb87ffc/bf6008327a7a4de19c11e96f9a595570/FLAGfa2134d8c [2025-01-10 01:31:12,398 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 01:31:12,401 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-numeric/Binomial.c [2025-01-10 01:31:12,407 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b9cb87ffc/bf6008327a7a4de19c11e96f9a595570/FLAGfa2134d8c [2025-01-10 01:31:12,420 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b9cb87ffc/bf6008327a7a4de19c11e96f9a595570 [2025-01-10 01:31:12,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 01:31:12,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 01:31:12,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 01:31:12,428 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 01:31:12,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 01:31:12,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,435 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68956f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12, skipping insertion in model container [2025-01-10 01:31:12,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,454 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 01:31:12,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:31:12,600 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 01:31:12,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:31:12,621 INFO L204 MainTranslator]: Completed translation [2025-01-10 01:31:12,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12 WrapperNode [2025-01-10 01:31:12,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 01:31:12,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 01:31:12,623 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 01:31:12,623 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 01:31:12,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,641 INFO L138 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2025-01-10 01:31:12,641 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 01:31:12,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 01:31:12,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 01:31:12,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 01:31:12,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,649 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,654 INFO L175 MemorySlicer]: No memory access in input program. [2025-01-10 01:31:12,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,657 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 01:31:12,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 01:31:12,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 01:31:12,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 01:31:12,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (1/1) ... [2025-01-10 01:31:12,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:31:12,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:12,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 01:31:12,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 01:31:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2025-01-10 01:31:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2025-01-10 01:31:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure binomialCoefficient [2025-01-10 01:31:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure binomialCoefficient [2025-01-10 01:31:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 01:31:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 01:31:12,764 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 01:31:12,765 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 01:31:12,915 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2025-01-10 01:31:12,916 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 01:31:12,924 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 01:31:12,924 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 01:31:12,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:31:12 BoogieIcfgContainer [2025-01-10 01:31:12,925 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 01:31:12,927 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 01:31:12,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 01:31:12,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 01:31:12,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:31:12" (1/3) ... [2025-01-10 01:31:12,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77860956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:31:12, skipping insertion in model container [2025-01-10 01:31:12,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:12" (2/3) ... [2025-01-10 01:31:12,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77860956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:31:12, skipping insertion in model container [2025-01-10 01:31:12,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:31:12" (3/3) ... [2025-01-10 01:31:12,933 INFO L128 eAbstractionObserver]: Analyzing ICFG Binomial.c [2025-01-10 01:31:12,946 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 01:31:12,947 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Binomial.c that has 3 procedures, 58 locations, 1 initial locations, 2 loop locations, and 14 error locations. [2025-01-10 01:31:12,987 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 01:31:12,995 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;@763dddce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 01:31:12,995 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-01-10 01:31:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 49 states have internal predecessors, (55), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-10 01:31:13,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-01-10 01:31:13,001 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:13,001 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:13,002 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:13,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:13,005 INFO L85 PathProgramCache]: Analyzing trace with hash 462305901, now seen corresponding path program 1 times [2025-01-10 01:31:13,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:13,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443580231] [2025-01-10 01:31:13,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:13,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:13,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 01:31:13,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 01:31:13,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:13,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:31:13,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:13,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443580231] [2025-01-10 01:31:13,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443580231] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:13,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:13,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 01:31:13,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105022483] [2025-01-10 01:31:13,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:13,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:31:13,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:13,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:31:13,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:31:13,134 INFO L87 Difference]: Start difference. First operand has 58 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 49 states have internal predecessors, (55), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:31:13,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:13,204 INFO L93 Difference]: Finished difference Result 114 states and 131 transitions. [2025-01-10 01:31:13,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 01:31:13,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-01-10 01:31:13,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:13,210 INFO L225 Difference]: With dead ends: 114 [2025-01-10 01:31:13,210 INFO L226 Difference]: Without dead ends: 56 [2025-01-10 01:31:13,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:31:13,216 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 23 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:13,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 154 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:13,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-01-10 01:31:13,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-01-10 01:31:13,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 34 states have (on average 1.5) internal successors, (51), 47 states have internal predecessors, (51), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-10 01:31:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2025-01-10 01:31:13,247 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 7 [2025-01-10 01:31:13,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:13,247 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2025-01-10 01:31:13,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:31:13,247 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2025-01-10 01:31:13,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 01:31:13,248 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:13,248 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:13,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 01:31:13,249 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:13,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:13,249 INFO L85 PathProgramCache]: Analyzing trace with hash 90283440, now seen corresponding path program 1 times [2025-01-10 01:31:13,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:13,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503311108] [2025-01-10 01:31:13,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:13,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:13,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 01:31:13,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 01:31:13,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:13,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:13,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:31:13,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:13,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503311108] [2025-01-10 01:31:13,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503311108] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:13,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:13,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 01:31:13,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621505997] [2025-01-10 01:31:13,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:13,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 01:31:13,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:13,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 01:31:13,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 01:31:13,284 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:31:13,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:13,306 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2025-01-10 01:31:13,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 01:31:13,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 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 13 [2025-01-10 01:31:13,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:13,307 INFO L225 Difference]: With dead ends: 56 [2025-01-10 01:31:13,308 INFO L226 Difference]: Without dead ends: 55 [2025-01-10 01:31:13,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 01:31:13,309 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 4 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:13,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 103 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:13,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-01-10 01:31:13,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2025-01-10 01:31:13,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 46 states have internal predecessors, (50), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-10 01:31:13,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2025-01-10 01:31:13,314 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 13 [2025-01-10 01:31:13,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:13,314 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2025-01-10 01:31:13,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:31:13,314 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2025-01-10 01:31:13,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-10 01:31:13,315 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:13,315 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:13,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 01:31:13,315 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:13,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:13,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1496180618, now seen corresponding path program 1 times [2025-01-10 01:31:13,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:13,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106618588] [2025-01-10 01:31:13,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:13,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:13,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 01:31:13,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 01:31:13,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:13,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:13,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:31:13,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:13,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106618588] [2025-01-10 01:31:13,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106618588] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:13,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:13,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 01:31:13,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418866088] [2025-01-10 01:31:13,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:13,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 01:31:13,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:13,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 01:31:13,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-10 01:31:13,407 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:31:13,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:13,560 INFO L93 Difference]: Finished difference Result 144 states and 166 transitions. [2025-01-10 01:31:13,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 01:31:13,562 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 14 [2025-01-10 01:31:13,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:13,563 INFO L225 Difference]: With dead ends: 144 [2025-01-10 01:31:13,563 INFO L226 Difference]: Without dead ends: 93 [2025-01-10 01:31:13,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-10 01:31:13,564 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 42 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:13,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 279 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:13,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2025-01-10 01:31:13,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2025-01-10 01:31:13,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 57 states have (on average 1.456140350877193) internal successors, (83), 69 states have internal predecessors, (83), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-01-10 01:31:13,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 105 transitions. [2025-01-10 01:31:13,579 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 105 transitions. Word has length 14 [2025-01-10 01:31:13,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:13,579 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 105 transitions. [2025-01-10 01:31:13,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:31:13,580 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 105 transitions. [2025-01-10 01:31:13,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-10 01:31:13,580 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:13,580 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:13,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 01:31:13,580 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:13,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:13,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1339866508, now seen corresponding path program 1 times [2025-01-10 01:31:13,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:13,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345680829] [2025-01-10 01:31:13,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:13,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:13,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 01:31:13,587 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 01:31:13,587 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:13,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:13,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:31:13,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:13,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345680829] [2025-01-10 01:31:13,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345680829] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:13,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:13,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 01:31:13,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700230186] [2025-01-10 01:31:13,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:13,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:31:13,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:13,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:31:13,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:31:13,612 INFO L87 Difference]: Start difference. First operand 85 states and 105 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:31:13,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:13,650 INFO L93 Difference]: Finished difference Result 169 states and 208 transitions. [2025-01-10 01:31:13,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:31:13,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 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 14 [2025-01-10 01:31:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:13,651 INFO L225 Difference]: With dead ends: 169 [2025-01-10 01:31:13,651 INFO L226 Difference]: Without dead ends: 90 [2025-01-10 01:31:13,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:31:13,652 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 17 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:13,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 160 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:13,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2025-01-10 01:31:13,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2025-01-10 01:31:13,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 70 states have internal predecessors, (84), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-01-10 01:31:13,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 106 transitions. [2025-01-10 01:31:13,660 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 106 transitions. Word has length 14 [2025-01-10 01:31:13,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:13,660 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 106 transitions. [2025-01-10 01:31:13,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:31:13,661 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 106 transitions. [2025-01-10 01:31:13,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-01-10 01:31:13,661 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:13,661 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:13,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 01:31:13,661 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:13,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:13,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1110646181, now seen corresponding path program 1 times [2025-01-10 01:31:13,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:13,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194056857] [2025-01-10 01:31:13,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:13,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:13,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 01:31:13,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 01:31:13,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:13,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:13,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:31:13,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:13,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194056857] [2025-01-10 01:31:13,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194056857] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:13,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:13,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 01:31:13,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375884505] [2025-01-10 01:31:13,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:13,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 01:31:13,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:13,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 01:31:13,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-10 01:31:13,733 INFO L87 Difference]: Start difference. First operand 86 states and 106 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 01:31:13,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:13,819 INFO L93 Difference]: Finished difference Result 214 states and 272 transitions. [2025-01-10 01:31:13,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 01:31:13,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2025-01-10 01:31:13,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:13,820 INFO L225 Difference]: With dead ends: 214 [2025-01-10 01:31:13,820 INFO L226 Difference]: Without dead ends: 135 [2025-01-10 01:31:13,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-10 01:31:13,821 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 36 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:13,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 301 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:13,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2025-01-10 01:31:13,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 123. [2025-01-10 01:31:13,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 98 states have internal predecessors, (123), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-10 01:31:13,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 161 transitions. [2025-01-10 01:31:13,848 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 161 transitions. Word has length 20 [2025-01-10 01:31:13,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:13,848 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 161 transitions. [2025-01-10 01:31:13,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 01:31:13,849 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 161 transitions. [2025-01-10 01:31:13,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-01-10 01:31:13,849 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:13,849 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:13,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 01:31:13,849 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting binomialCoefficientErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:13,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:13,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2116453683, now seen corresponding path program 1 times [2025-01-10 01:31:13,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:13,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415900658] [2025-01-10 01:31:13,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:13,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:13,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 01:31:13,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 01:31:13,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:13,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:13,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-10 01:31:13,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:13,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415900658] [2025-01-10 01:31:13,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415900658] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:13,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:13,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 01:31:13,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001703575] [2025-01-10 01:31:13,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:13,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 01:31:13,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:13,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 01:31:13,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 01:31:13,908 INFO L87 Difference]: Start difference. First operand 123 states and 161 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 01:31:13,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:13,974 INFO L93 Difference]: Finished difference Result 148 states and 186 transitions. [2025-01-10 01:31:13,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 01:31:13,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2025-01-10 01:31:13,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:13,976 INFO L225 Difference]: With dead ends: 148 [2025-01-10 01:31:13,976 INFO L226 Difference]: Without dead ends: 147 [2025-01-10 01:31:13,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 01:31:13,977 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 44 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:13,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 251 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:13,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2025-01-10 01:31:13,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 138. [2025-01-10 01:31:13,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 95 states have (on average 1.431578947368421) internal successors, (136), 109 states have internal predecessors, (136), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 01:31:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 180 transitions. [2025-01-10 01:31:13,988 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 180 transitions. Word has length 22 [2025-01-10 01:31:13,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:13,988 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 180 transitions. [2025-01-10 01:31:13,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 01:31:13,988 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 180 transitions. [2025-01-10 01:31:13,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-01-10 01:31:13,989 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:13,989 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:13,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 01:31:13,989 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:13,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:13,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1185554679, now seen corresponding path program 1 times [2025-01-10 01:31:13,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:13,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706067317] [2025-01-10 01:31:13,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:13,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:13,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-10 01:31:13,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-10 01:31:13,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:13,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:14,040 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-10 01:31:14,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:14,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706067317] [2025-01-10 01:31:14,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706067317] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:14,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:14,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 01:31:14,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172686899] [2025-01-10 01:31:14,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:14,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 01:31:14,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:14,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 01:31:14,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 01:31:14,042 INFO L87 Difference]: Start difference. First operand 138 states and 180 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 01:31:14,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:14,104 INFO L93 Difference]: Finished difference Result 148 states and 183 transitions. [2025-01-10 01:31:14,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 01:31:14,105 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2025-01-10 01:31:14,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:14,106 INFO L225 Difference]: With dead ends: 148 [2025-01-10 01:31:14,106 INFO L226 Difference]: Without dead ends: 147 [2025-01-10 01:31:14,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 01:31:14,107 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 43 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:14,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 252 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:14,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2025-01-10 01:31:14,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 138. [2025-01-10 01:31:14,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 109 states have internal predecessors, (135), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 01:31:14,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 179 transitions. [2025-01-10 01:31:14,116 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 179 transitions. Word has length 23 [2025-01-10 01:31:14,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:14,116 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 179 transitions. [2025-01-10 01:31:14,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 01:31:14,117 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 179 transitions. [2025-01-10 01:31:14,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-01-10 01:31:14,117 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:14,117 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:14,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 01:31:14,117 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:14,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:14,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1920217812, now seen corresponding path program 1 times [2025-01-10 01:31:14,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:14,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249267433] [2025-01-10 01:31:14,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:14,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:14,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-10 01:31:14,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 01:31:14,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:14,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-10 01:31:14,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:14,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249267433] [2025-01-10 01:31:14,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249267433] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:14,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:14,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 01:31:14,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259144450] [2025-01-10 01:31:14,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:14,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 01:31:14,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:14,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 01:31:14,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-10 01:31:14,189 INFO L87 Difference]: Start difference. First operand 138 states and 179 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 01:31:14,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:14,286 INFO L93 Difference]: Finished difference Result 273 states and 347 transitions. [2025-01-10 01:31:14,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 01:31:14,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2025-01-10 01:31:14,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:14,287 INFO L225 Difference]: With dead ends: 273 [2025-01-10 01:31:14,287 INFO L226 Difference]: Without dead ends: 151 [2025-01-10 01:31:14,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-01-10 01:31:14,288 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 46 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:14,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 335 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:14,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2025-01-10 01:31:14,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 142. [2025-01-10 01:31:14,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 98 states have (on average 1.4081632653061225) internal successors, (138), 112 states have internal predecessors, (138), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 01:31:14,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 182 transitions. [2025-01-10 01:31:14,297 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 182 transitions. Word has length 28 [2025-01-10 01:31:14,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:14,297 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 182 transitions. [2025-01-10 01:31:14,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 01:31:14,298 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 182 transitions. [2025-01-10 01:31:14,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-01-10 01:31:14,298 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:14,298 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:14,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 01:31:14,298 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting binomialCoefficientErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:14,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:14,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1507194754, now seen corresponding path program 1 times [2025-01-10 01:31:14,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:14,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870198282] [2025-01-10 01:31:14,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:14,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:14,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 01:31:14,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 01:31:14,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:14,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:14,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [931812017] [2025-01-10 01:31:14,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:14,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:14,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:14,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:14,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 01:31:14,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 01:31:14,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 01:31:14,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:14,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:14,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 01:31:14,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:14,395 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-10 01:31:14,395 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 01:31:14,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:14,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870198282] [2025-01-10 01:31:14,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:14,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931812017] [2025-01-10 01:31:14,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931812017] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:14,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:14,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 01:31:14,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575604690] [2025-01-10 01:31:14,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:14,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 01:31:14,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:14,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 01:31:14,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:31:14,398 INFO L87 Difference]: Start difference. First operand 142 states and 182 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-10 01:31:14,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:14,461 INFO L93 Difference]: Finished difference Result 194 states and 279 transitions. [2025-01-10 01:31:14,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:31:14,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2025-01-10 01:31:14,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:14,463 INFO L225 Difference]: With dead ends: 194 [2025-01-10 01:31:14,463 INFO L226 Difference]: Without dead ends: 193 [2025-01-10 01:31:14,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:31:14,463 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 9 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:14,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 201 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:14,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2025-01-10 01:31:14,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 164. [2025-01-10 01:31:14,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 116 states have (on average 1.3706896551724137) internal successors, (159), 127 states have internal predecessors, (159), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (39), 27 states have call predecessors, (39), 25 states have call successors, (39) [2025-01-10 01:31:14,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 223 transitions. [2025-01-10 01:31:14,474 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 223 transitions. Word has length 30 [2025-01-10 01:31:14,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:14,474 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 223 transitions. [2025-01-10 01:31:14,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-10 01:31:14,474 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 223 transitions. [2025-01-10 01:31:14,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-01-10 01:31:14,475 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:14,475 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:14,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 01:31:14,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:14,680 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting binomialCoefficientErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:14,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:14,680 INFO L85 PathProgramCache]: Analyzing trace with hash 521602942, now seen corresponding path program 1 times [2025-01-10 01:31:14,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:14,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851376462] [2025-01-10 01:31:14,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:14,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:14,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-10 01:31:14,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-10 01:31:14,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:14,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:14,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631128212] [2025-01-10 01:31:14,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:14,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:14,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:14,690 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:14,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 01:31:14,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-10 01:31:14,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-10 01:31:14,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:14,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:14,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 01:31:14,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:14,806 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-10 01:31:14,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 01:31:14,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:14,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851376462] [2025-01-10 01:31:14,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:14,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631128212] [2025-01-10 01:31:14,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631128212] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:14,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:14,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 01:31:14,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704860045] [2025-01-10 01:31:14,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:14,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 01:31:14,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:14,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 01:31:14,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-10 01:31:14,807 INFO L87 Difference]: Start difference. First operand 164 states and 223 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-10 01:31:14,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:14,863 INFO L93 Difference]: Finished difference Result 194 states and 274 transitions. [2025-01-10 01:31:14,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:31:14,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2025-01-10 01:31:14,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:14,867 INFO L225 Difference]: With dead ends: 194 [2025-01-10 01:31:14,867 INFO L226 Difference]: Without dead ends: 193 [2025-01-10 01:31:14,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-10 01:31:14,867 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 8 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:14,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 250 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:14,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2025-01-10 01:31:14,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 168. [2025-01-10 01:31:14,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 120 states have (on average 1.35) internal successors, (162), 131 states have internal predecessors, (162), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (39), 27 states have call predecessors, (39), 25 states have call successors, (39) [2025-01-10 01:31:14,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 226 transitions. [2025-01-10 01:31:14,886 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 226 transitions. Word has length 31 [2025-01-10 01:31:14,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:14,887 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 226 transitions. [2025-01-10 01:31:14,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-10 01:31:14,887 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 226 transitions. [2025-01-10 01:31:14,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-01-10 01:31:14,888 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:14,888 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:14,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 01:31:15,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:15,089 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:15,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:15,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1010177920, now seen corresponding path program 1 times [2025-01-10 01:31:15,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:15,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305453113] [2025-01-10 01:31:15,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:15,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:15,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-10 01:31:15,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-10 01:31:15,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:15,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:15,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1059082053] [2025-01-10 01:31:15,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:15,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:15,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:15,118 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:15,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 01:31:15,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-10 01:31:15,154 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-10 01:31:15,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:15,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:15,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 01:31:15,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 01:31:15,238 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 01:31:15,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:15,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305453113] [2025-01-10 01:31:15,238 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:15,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059082053] [2025-01-10 01:31:15,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059082053] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:15,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:15,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 01:31:15,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450074422] [2025-01-10 01:31:15,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:15,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 01:31:15,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:15,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 01:31:15,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-10 01:31:15,239 INFO L87 Difference]: Start difference. First operand 168 states and 226 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 01:31:15,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:15,312 INFO L93 Difference]: Finished difference Result 248 states and 353 transitions. [2025-01-10 01:31:15,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 01:31:15,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2025-01-10 01:31:15,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:15,313 INFO L225 Difference]: With dead ends: 248 [2025-01-10 01:31:15,313 INFO L226 Difference]: Without dead ends: 247 [2025-01-10 01:31:15,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-10 01:31:15,314 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 26 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:15,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 255 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:15,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2025-01-10 01:31:15,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 199. [2025-01-10 01:31:15,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 145 states have (on average 1.3103448275862069) internal successors, (190), 153 states have internal predecessors, (190), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (50), 36 states have call predecessors, (50), 31 states have call successors, (50) [2025-01-10 01:31:15,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 271 transitions. [2025-01-10 01:31:15,325 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 271 transitions. Word has length 32 [2025-01-10 01:31:15,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:15,325 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 271 transitions. [2025-01-10 01:31:15,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 01:31:15,326 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 271 transitions. [2025-01-10 01:31:15,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-01-10 01:31:15,326 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:15,326 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:15,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 01:31:15,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:15,530 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting binomialCoefficientErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:15,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:15,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1250744384, now seen corresponding path program 1 times [2025-01-10 01:31:15,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:15,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410892536] [2025-01-10 01:31:15,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:15,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:15,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-10 01:31:15,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-10 01:31:15,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:15,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:15,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [893162141] [2025-01-10 01:31:15,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:15,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:15,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:15,542 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:15,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 01:31:15,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-10 01:31:15,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-10 01:31:15,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:15,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:15,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-10 01:31:15,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:15,644 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-10 01:31:15,644 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:16,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:16,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410892536] [2025-01-10 01:31:16,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:16,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893162141] [2025-01-10 01:31:16,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893162141] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:16,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:16,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-01-10 01:31:16,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591764091] [2025-01-10 01:31:16,477 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:16,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 01:31:16,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:16,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 01:31:16,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-01-10 01:31:16,478 INFO L87 Difference]: Start difference. First operand 199 states and 271 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 01:31:16,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:16,540 INFO L93 Difference]: Finished difference Result 248 states and 348 transitions. [2025-01-10 01:31:16,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 01:31:16,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2025-01-10 01:31:16,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:16,542 INFO L225 Difference]: With dead ends: 248 [2025-01-10 01:31:16,542 INFO L226 Difference]: Without dead ends: 247 [2025-01-10 01:31:16,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-01-10 01:31:16,542 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 25 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:16,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 217 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:16,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2025-01-10 01:31:16,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 203. [2025-01-10 01:31:16,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 149 states have (on average 1.2953020134228188) internal successors, (193), 157 states have internal predecessors, (193), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (50), 36 states have call predecessors, (50), 31 states have call successors, (50) [2025-01-10 01:31:16,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 274 transitions. [2025-01-10 01:31:16,552 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 274 transitions. Word has length 33 [2025-01-10 01:31:16,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:16,553 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 274 transitions. [2025-01-10 01:31:16,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 01:31:16,553 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 274 transitions. [2025-01-10 01:31:16,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-01-10 01:31:16,553 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:16,553 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:16,559 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 [2025-01-10 01:31:16,754 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,SelfDestructingSolverStorable11 [2025-01-10 01:31:16,754 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:16,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:16,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1831043324, now seen corresponding path program 1 times [2025-01-10 01:31:16,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:16,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849370384] [2025-01-10 01:31:16,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:16,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:16,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-10 01:31:16,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-10 01:31:16,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:16,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 01:31:16,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:16,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849370384] [2025-01-10 01:31:16,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849370384] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:16,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:16,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 01:31:16,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017847558] [2025-01-10 01:31:16,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:16,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:31:16,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:16,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:31:16,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:31:16,816 INFO L87 Difference]: Start difference. First operand 203 states and 274 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 01:31:16,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:16,836 INFO L93 Difference]: Finished difference Result 203 states and 274 transitions. [2025-01-10 01:31:16,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 01:31:16,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2025-01-10 01:31:16,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:16,838 INFO L225 Difference]: With dead ends: 203 [2025-01-10 01:31:16,838 INFO L226 Difference]: Without dead ends: 202 [2025-01-10 01:31:16,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:31:16,840 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 3 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:16,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 149 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:16,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2025-01-10 01:31:16,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2025-01-10 01:31:16,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 149 states have (on average 1.2818791946308725) internal successors, (191), 156 states have internal predecessors, (191), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (50), 36 states have call predecessors, (50), 31 states have call successors, (50) [2025-01-10 01:31:16,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 272 transitions. [2025-01-10 01:31:16,852 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 272 transitions. Word has length 38 [2025-01-10 01:31:16,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:16,853 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 272 transitions. [2025-01-10 01:31:16,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 01:31:16,853 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 272 transitions. [2025-01-10 01:31:16,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-01-10 01:31:16,853 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:16,853 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:16,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-10 01:31:16,853 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:16,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:16,854 INFO L85 PathProgramCache]: Analyzing trace with hash -927768095, now seen corresponding path program 1 times [2025-01-10 01:31:16,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:16,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856788009] [2025-01-10 01:31:16,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:16,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:16,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-10 01:31:16,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-10 01:31:16,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:16,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:16,907 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 01:31:16,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:16,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856788009] [2025-01-10 01:31:16,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856788009] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:16,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:16,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 01:31:16,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478237471] [2025-01-10 01:31:16,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:16,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:31:16,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:16,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:31:16,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:31:16,909 INFO L87 Difference]: Start difference. First operand 202 states and 272 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 01:31:16,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:16,931 INFO L93 Difference]: Finished difference Result 213 states and 285 transitions. [2025-01-10 01:31:16,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 01:31:16,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2025-01-10 01:31:16,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:16,932 INFO L225 Difference]: With dead ends: 213 [2025-01-10 01:31:16,932 INFO L226 Difference]: Without dead ends: 212 [2025-01-10 01:31:16,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:31:16,933 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 2 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:16,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 166 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:16,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2025-01-10 01:31:16,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2025-01-10 01:31:16,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 158 states have (on average 1.2658227848101267) internal successors, (200), 163 states have internal predecessors, (200), 32 states have call successors, (32), 9 states have call predecessors, (32), 10 states have return successors, (51), 39 states have call predecessors, (51), 32 states have call successors, (51) [2025-01-10 01:31:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 283 transitions. [2025-01-10 01:31:16,944 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 283 transitions. Word has length 39 [2025-01-10 01:31:16,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:16,945 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 283 transitions. [2025-01-10 01:31:16,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 01:31:16,945 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 283 transitions. [2025-01-10 01:31:16,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-01-10 01:31:16,947 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:16,948 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:16,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-10 01:31:16,948 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:16,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:16,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1768061571, now seen corresponding path program 1 times [2025-01-10 01:31:16,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:16,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993563163] [2025-01-10 01:31:16,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:16,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:16,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-01-10 01:31:16,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-01-10 01:31:16,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:16,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:16,986 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-10 01:31:16,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:16,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993563163] [2025-01-10 01:31:16,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993563163] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:16,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:16,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 01:31:16,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371100584] [2025-01-10 01:31:16,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:16,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:31:16,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:16,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:31:16,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:31:16,989 INFO L87 Difference]: Start difference. First operand 212 states and 283 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 01:31:17,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:17,006 INFO L93 Difference]: Finished difference Result 212 states and 283 transitions. [2025-01-10 01:31:17,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 01:31:17,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2025-01-10 01:31:17,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:17,008 INFO L225 Difference]: With dead ends: 212 [2025-01-10 01:31:17,008 INFO L226 Difference]: Without dead ends: 211 [2025-01-10 01:31:17,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:31:17,008 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 4 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:17,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 144 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:17,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2025-01-10 01:31:17,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2025-01-10 01:31:17,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 158 states have (on average 1.259493670886076) internal successors, (199), 162 states have internal predecessors, (199), 32 states have call successors, (32), 9 states have call predecessors, (32), 10 states have return successors, (51), 39 states have call predecessors, (51), 32 states have call successors, (51) [2025-01-10 01:31:17,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2025-01-10 01:31:17,022 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 41 [2025-01-10 01:31:17,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:17,022 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2025-01-10 01:31:17,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 01:31:17,022 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2025-01-10 01:31:17,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-01-10 01:31:17,023 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:17,023 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:17,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-10 01:31:17,023 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:17,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:17,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1024666040, now seen corresponding path program 1 times [2025-01-10 01:31:17,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:17,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2482664] [2025-01-10 01:31:17,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:17,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:17,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-10 01:31:17,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-10 01:31:17,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:17,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-10 01:31:17,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:17,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2482664] [2025-01-10 01:31:17,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2482664] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:17,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:17,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 01:31:17,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885232227] [2025-01-10 01:31:17,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:17,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:31:17,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:17,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:31:17,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:31:17,078 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 01:31:17,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:17,099 INFO L93 Difference]: Finished difference Result 215 states and 285 transitions. [2025-01-10 01:31:17,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 01:31:17,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2025-01-10 01:31:17,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:17,100 INFO L225 Difference]: With dead ends: 215 [2025-01-10 01:31:17,100 INFO L226 Difference]: Without dead ends: 214 [2025-01-10 01:31:17,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:31:17,101 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 3 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:17,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 159 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:17,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2025-01-10 01:31:17,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 213. [2025-01-10 01:31:17,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 160 states have (on average 1.25625) internal successors, (201), 164 states have internal predecessors, (201), 32 states have call successors, (32), 9 states have call predecessors, (32), 10 states have return successors, (51), 39 states have call predecessors, (51), 32 states have call successors, (51) [2025-01-10 01:31:17,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 284 transitions. [2025-01-10 01:31:17,111 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 284 transitions. Word has length 42 [2025-01-10 01:31:17,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:17,111 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 284 transitions. [2025-01-10 01:31:17,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 01:31:17,111 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 284 transitions. [2025-01-10 01:31:17,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-01-10 01:31:17,112 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:17,113 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:17,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-10 01:31:17,113 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:17,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:17,113 INFO L85 PathProgramCache]: Analyzing trace with hash 610327966, now seen corresponding path program 1 times [2025-01-10 01:31:17,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:17,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244164403] [2025-01-10 01:31:17,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:17,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:17,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-10 01:31:17,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 01:31:17,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:17,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:17,197 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 01:31:17,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:17,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244164403] [2025-01-10 01:31:17,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244164403] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:17,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306272931] [2025-01-10 01:31:17,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:17,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:17,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:17,200 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:17,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 01:31:17,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-10 01:31:17,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 01:31:17,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:17,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:17,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 01:31:17,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 01:31:17,265 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:17,376 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 01:31:17,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306272931] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:31:17,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:31:17,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-01-10 01:31:17,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840868074] [2025-01-10 01:31:17,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:17,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-10 01:31:17,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:17,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-10 01:31:17,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2025-01-10 01:31:17,378 INFO L87 Difference]: Start difference. First operand 213 states and 284 transitions. Second operand has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 7 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-10 01:31:17,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:17,630 INFO L93 Difference]: Finished difference Result 300 states and 392 transitions. [2025-01-10 01:31:17,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-10 01:31:17,630 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 7 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 48 [2025-01-10 01:31:17,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:17,632 INFO L225 Difference]: With dead ends: 300 [2025-01-10 01:31:17,632 INFO L226 Difference]: Without dead ends: 299 [2025-01-10 01:31:17,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2025-01-10 01:31:17,633 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 129 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:17,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 604 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 01:31:17,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2025-01-10 01:31:17,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 276. [2025-01-10 01:31:17,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 208 states have (on average 1.2932692307692308) internal successors, (269), 214 states have internal predecessors, (269), 42 states have call successors, (42), 12 states have call predecessors, (42), 15 states have return successors, (69), 49 states have call predecessors, (69), 42 states have call successors, (69) [2025-01-10 01:31:17,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 380 transitions. [2025-01-10 01:31:17,651 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 380 transitions. Word has length 48 [2025-01-10 01:31:17,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:17,651 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 380 transitions. [2025-01-10 01:31:17,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 7 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-10 01:31:17,652 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 380 transitions. [2025-01-10 01:31:17,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-01-10 01:31:17,653 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:17,653 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:17,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 01:31:17,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-01-10 01:31:17,857 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:17,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:17,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1691656041, now seen corresponding path program 1 times [2025-01-10 01:31:17,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:17,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624067113] [2025-01-10 01:31:17,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:17,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:17,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-01-10 01:31:17,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-01-10 01:31:17,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:17,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:17,951 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 01:31:17,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:17,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624067113] [2025-01-10 01:31:17,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624067113] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:17,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788220573] [2025-01-10 01:31:17,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:17,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:17,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:17,957 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:17,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-10 01:31:17,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-01-10 01:31:17,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-01-10 01:31:17,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:17,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:17,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 01:31:17,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 01:31:18,073 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:18,135 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 01:31:18,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788220573] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:31:18,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:31:18,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2025-01-10 01:31:18,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667615938] [2025-01-10 01:31:18,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:18,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-10 01:31:18,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:18,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-10 01:31:18,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-01-10 01:31:18,138 INFO L87 Difference]: Start difference. First operand 276 states and 380 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-10 01:31:18,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:18,259 INFO L93 Difference]: Finished difference Result 515 states and 714 transitions. [2025-01-10 01:31:18,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-10 01:31:18,260 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 52 [2025-01-10 01:31:18,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:18,261 INFO L225 Difference]: With dead ends: 515 [2025-01-10 01:31:18,261 INFO L226 Difference]: Without dead ends: 306 [2025-01-10 01:31:18,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 93 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2025-01-10 01:31:18,262 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 31 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:18,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 277 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:18,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2025-01-10 01:31:18,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 290. [2025-01-10 01:31:18,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 222 states have (on average 1.2882882882882882) internal successors, (286), 228 states have internal predecessors, (286), 42 states have call successors, (42), 12 states have call predecessors, (42), 15 states have return successors, (69), 49 states have call predecessors, (69), 42 states have call successors, (69) [2025-01-10 01:31:18,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 397 transitions. [2025-01-10 01:31:18,278 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 397 transitions. Word has length 52 [2025-01-10 01:31:18,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:18,278 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 397 transitions. [2025-01-10 01:31:18,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-10 01:31:18,278 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 397 transitions. [2025-01-10 01:31:18,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-01-10 01:31:18,279 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:18,279 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:18,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 01:31:18,479 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,SelfDestructingSolverStorable17 [2025-01-10 01:31:18,481 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:18,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:18,482 INFO L85 PathProgramCache]: Analyzing trace with hash -397004465, now seen corresponding path program 1 times [2025-01-10 01:31:18,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:18,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834662925] [2025-01-10 01:31:18,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:18,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:18,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-01-10 01:31:18,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-01-10 01:31:18,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:18,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:18,604 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-10 01:31:18,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:18,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834662925] [2025-01-10 01:31:18,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834662925] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:18,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:18,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 01:31:18,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444562592] [2025-01-10 01:31:18,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:18,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 01:31:18,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:18,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 01:31:18,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 01:31:18,606 INFO L87 Difference]: Start difference. First operand 290 states and 397 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-10 01:31:18,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:18,688 INFO L93 Difference]: Finished difference Result 519 states and 716 transitions. [2025-01-10 01:31:18,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 01:31:18,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 54 [2025-01-10 01:31:18,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:18,690 INFO L225 Difference]: With dead ends: 519 [2025-01-10 01:31:18,690 INFO L226 Difference]: Without dead ends: 263 [2025-01-10 01:31:18,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-10 01:31:18,691 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 16 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:18,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 192 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:18,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2025-01-10 01:31:18,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 262. [2025-01-10 01:31:18,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 200 states have (on average 1.275) internal successors, (255), 207 states have internal predecessors, (255), 37 states have call successors, (37), 11 states have call predecessors, (37), 14 states have return successors, (61), 43 states have call predecessors, (61), 37 states have call successors, (61) [2025-01-10 01:31:18,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 353 transitions. [2025-01-10 01:31:18,702 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 353 transitions. Word has length 54 [2025-01-10 01:31:18,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:18,703 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 353 transitions. [2025-01-10 01:31:18,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-10 01:31:18,703 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 353 transitions. [2025-01-10 01:31:18,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-01-10 01:31:18,703 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:18,703 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:18,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-10 01:31:18,703 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:18,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:18,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1288922317, now seen corresponding path program 2 times [2025-01-10 01:31:18,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:18,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139516340] [2025-01-10 01:31:18,704 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:31:18,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:18,708 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 54 statements into 2 equivalence classes. [2025-01-10 01:31:18,713 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 54 of 54 statements. [2025-01-10 01:31:18,713 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:31:18,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:18,781 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-10 01:31:18,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:18,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139516340] [2025-01-10 01:31:18,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139516340] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:18,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:18,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-10 01:31:18,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856132042] [2025-01-10 01:31:18,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:18,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 01:31:18,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:18,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 01:31:18,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-10 01:31:18,783 INFO L87 Difference]: Start difference. First operand 262 states and 353 transitions. Second operand has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-10 01:31:18,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:18,901 INFO L93 Difference]: Finished difference Result 537 states and 742 transitions. [2025-01-10 01:31:18,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 01:31:18,902 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 54 [2025-01-10 01:31:18,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:18,903 INFO L225 Difference]: With dead ends: 537 [2025-01-10 01:31:18,903 INFO L226 Difference]: Without dead ends: 313 [2025-01-10 01:31:18,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-01-10 01:31:18,905 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 40 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:18,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 309 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:18,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2025-01-10 01:31:18,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 306. [2025-01-10 01:31:18,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 234 states have (on average 1.3034188034188035) internal successors, (305), 239 states have internal predecessors, (305), 45 states have call successors, (45), 13 states have call predecessors, (45), 16 states have return successors, (75), 53 states have call predecessors, (75), 45 states have call successors, (75) [2025-01-10 01:31:18,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 425 transitions. [2025-01-10 01:31:18,921 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 425 transitions. Word has length 54 [2025-01-10 01:31:18,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:18,921 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 425 transitions. [2025-01-10 01:31:18,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-10 01:31:18,921 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 425 transitions. [2025-01-10 01:31:18,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-01-10 01:31:18,921 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:18,921 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:18,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-01-10 01:31:18,922 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:18,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:18,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1057942589, now seen corresponding path program 1 times [2025-01-10 01:31:18,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:18,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793876503] [2025-01-10 01:31:18,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:18,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:18,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-01-10 01:31:18,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-01-10 01:31:18,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:18,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:18,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024370549] [2025-01-10 01:31:18,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:18,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:18,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:18,938 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:18,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 01:31:18,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-01-10 01:31:18,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-01-10 01:31:18,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:18,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:18,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 01:31:18,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:19,013 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-10 01:31:19,014 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 01:31:19,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:19,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793876503] [2025-01-10 01:31:19,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:19,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024370549] [2025-01-10 01:31:19,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024370549] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:19,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:19,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 01:31:19,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491622462] [2025-01-10 01:31:19,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:19,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 01:31:19,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:19,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 01:31:19,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-10 01:31:19,016 INFO L87 Difference]: Start difference. First operand 306 states and 425 transitions. Second operand has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-10 01:31:19,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:19,035 INFO L93 Difference]: Finished difference Result 306 states and 425 transitions. [2025-01-10 01:31:19,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 01:31:19,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2025-01-10 01:31:19,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:19,037 INFO L225 Difference]: With dead ends: 306 [2025-01-10 01:31:19,037 INFO L226 Difference]: Without dead ends: 305 [2025-01-10 01:31:19,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-10 01:31:19,038 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 2 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:19,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 194 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:19,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2025-01-10 01:31:19,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2025-01-10 01:31:19,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 234 states have (on average 1.2905982905982907) internal successors, (302), 238 states have internal predecessors, (302), 45 states have call successors, (45), 13 states have call predecessors, (45), 16 states have return successors, (75), 53 states have call predecessors, (75), 45 states have call successors, (75) [2025-01-10 01:31:19,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 422 transitions. [2025-01-10 01:31:19,050 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 422 transitions. Word has length 55 [2025-01-10 01:31:19,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:19,051 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 422 transitions. [2025-01-10 01:31:19,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-10 01:31:19,051 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 422 transitions. [2025-01-10 01:31:19,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-01-10 01:31:19,051 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:19,051 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:19,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-10 01:31:19,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:19,256 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:19,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:19,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1563518065, now seen corresponding path program 1 times [2025-01-10 01:31:19,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:19,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013974329] [2025-01-10 01:31:19,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:19,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:19,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-01-10 01:31:19,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-01-10 01:31:19,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:19,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:19,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027518371] [2025-01-10 01:31:19,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:19,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:19,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:19,282 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:19,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-10 01:31:19,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-01-10 01:31:19,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-01-10 01:31:19,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:19,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:19,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 01:31:19,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:19,444 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-10 01:31:19,445 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:19,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:19,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013974329] [2025-01-10 01:31:19,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:19,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027518371] [2025-01-10 01:31:19,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027518371] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:19,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:19,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-01-10 01:31:19,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610083656] [2025-01-10 01:31:19,556 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:19,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-10 01:31:19,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:19,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-10 01:31:19,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2025-01-10 01:31:19,557 INFO L87 Difference]: Start difference. First operand 305 states and 422 transitions. Second operand has 13 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-10 01:31:19,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:19,792 INFO L93 Difference]: Finished difference Result 327 states and 440 transitions. [2025-01-10 01:31:19,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-10 01:31:19,792 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 56 [2025-01-10 01:31:19,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:19,794 INFO L225 Difference]: With dead ends: 327 [2025-01-10 01:31:19,794 INFO L226 Difference]: Without dead ends: 326 [2025-01-10 01:31:19,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2025-01-10 01:31:19,797 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 63 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:19,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 313 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:19,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2025-01-10 01:31:19,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 305. [2025-01-10 01:31:19,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 234 states have (on average 1.2863247863247864) internal successors, (301), 238 states have internal predecessors, (301), 45 states have call successors, (45), 13 states have call predecessors, (45), 16 states have return successors, (75), 53 states have call predecessors, (75), 45 states have call successors, (75) [2025-01-10 01:31:19,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 421 transitions. [2025-01-10 01:31:19,808 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 421 transitions. Word has length 56 [2025-01-10 01:31:19,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:19,808 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 421 transitions. [2025-01-10 01:31:19,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-10 01:31:19,809 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 421 transitions. [2025-01-10 01:31:19,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-01-10 01:31:19,810 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:19,810 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:19,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-10 01:31:20,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:20,011 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:20,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:20,011 INFO L85 PathProgramCache]: Analyzing trace with hash -913515455, now seen corresponding path program 1 times [2025-01-10 01:31:20,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:20,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13569445] [2025-01-10 01:31:20,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:20,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:20,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-01-10 01:31:20,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-01-10 01:31:20,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:20,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-01-10 01:31:20,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:20,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13569445] [2025-01-10 01:31:20,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13569445] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:20,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:20,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 01:31:20,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885645779] [2025-01-10 01:31:20,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:20,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 01:31:20,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:20,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 01:31:20,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-10 01:31:20,089 INFO L87 Difference]: Start difference. First operand 305 states and 421 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-01-10 01:31:20,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:20,160 INFO L93 Difference]: Finished difference Result 564 states and 774 transitions. [2025-01-10 01:31:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 01:31:20,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 64 [2025-01-10 01:31:20,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:20,161 INFO L225 Difference]: With dead ends: 564 [2025-01-10 01:31:20,162 INFO L226 Difference]: Without dead ends: 308 [2025-01-10 01:31:20,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-10 01:31:20,163 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 35 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:20,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 346 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2025-01-10 01:31:20,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 301. [2025-01-10 01:31:20,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 231 states have (on average 1.2727272727272727) internal successors, (294), 235 states have internal predecessors, (294), 43 states have call successors, (43), 14 states have call predecessors, (43), 17 states have return successors, (69), 51 states have call predecessors, (69), 43 states have call successors, (69) [2025-01-10 01:31:20,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 406 transitions. [2025-01-10 01:31:20,174 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 406 transitions. Word has length 64 [2025-01-10 01:31:20,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:20,174 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 406 transitions. [2025-01-10 01:31:20,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-01-10 01:31:20,174 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 406 transitions. [2025-01-10 01:31:20,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-01-10 01:31:20,175 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:20,175 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:20,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-01-10 01:31:20,175 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting binomialCoefficientErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:20,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:20,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1715600791, now seen corresponding path program 1 times [2025-01-10 01:31:20,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:20,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718827893] [2025-01-10 01:31:20,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:20,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:20,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-10 01:31:20,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-10 01:31:20,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:20,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:20,289 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-10 01:31:20,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:20,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718827893] [2025-01-10 01:31:20,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718827893] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:20,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:20,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 01:31:20,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976074344] [2025-01-10 01:31:20,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:20,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 01:31:20,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:20,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 01:31:20,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-01-10 01:31:20,290 INFO L87 Difference]: Start difference. First operand 301 states and 406 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2025-01-10 01:31:20,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:20,373 INFO L93 Difference]: Finished difference Result 307 states and 406 transitions. [2025-01-10 01:31:20,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 01:31:20,373 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2025-01-10 01:31:20,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:20,375 INFO L225 Difference]: With dead ends: 307 [2025-01-10 01:31:20,375 INFO L226 Difference]: Without dead ends: 306 [2025-01-10 01:31:20,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2025-01-10 01:31:20,376 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 42 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:20,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 325 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:20,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2025-01-10 01:31:20,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 300. [2025-01-10 01:31:20,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 231 states have (on average 1.2380952380952381) internal successors, (286), 234 states have internal predecessors, (286), 43 states have call successors, (43), 14 states have call predecessors, (43), 17 states have return successors, (69), 51 states have call predecessors, (69), 43 states have call successors, (69) [2025-01-10 01:31:20,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 398 transitions. [2025-01-10 01:31:20,388 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 398 transitions. Word has length 66 [2025-01-10 01:31:20,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:20,388 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 398 transitions. [2025-01-10 01:31:20,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2025-01-10 01:31:20,388 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 398 transitions. [2025-01-10 01:31:20,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-01-10 01:31:20,388 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:20,389 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:20,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-01-10 01:31:20,389 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:20,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:20,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1644016915, now seen corresponding path program 1 times [2025-01-10 01:31:20,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:20,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401595638] [2025-01-10 01:31:20,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:20,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:20,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-01-10 01:31:20,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-01-10 01:31:20,396 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:20,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:20,460 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-10 01:31:20,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:20,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401595638] [2025-01-10 01:31:20,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401595638] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:20,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444088115] [2025-01-10 01:31:20,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:20,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:20,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:20,462 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:20,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-10 01:31:20,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-01-10 01:31:20,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-01-10 01:31:20,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:20,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:20,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-10 01:31:20,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:20,583 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-10 01:31:20,583 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:20,703 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-10 01:31:20,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444088115] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:31:20,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:31:20,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2025-01-10 01:31:20,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408853528] [2025-01-10 01:31:20,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:20,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-10 01:31:20,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:20,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-10 01:31:20,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2025-01-10 01:31:20,705 INFO L87 Difference]: Start difference. First operand 300 states and 398 transitions. Second operand has 19 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 16 states have internal predecessors, (67), 10 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2025-01-10 01:31:20,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:20,888 INFO L93 Difference]: Finished difference Result 428 states and 572 transitions. [2025-01-10 01:31:20,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-10 01:31:20,888 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 16 states have internal predecessors, (67), 10 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 67 [2025-01-10 01:31:20,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:20,890 INFO L225 Difference]: With dead ends: 428 [2025-01-10 01:31:20,890 INFO L226 Difference]: Without dead ends: 427 [2025-01-10 01:31:20,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2025-01-10 01:31:20,890 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 121 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:20,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 695 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:20,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2025-01-10 01:31:20,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 408. [2025-01-10 01:31:20,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 315 states have (on average 1.2126984126984126) internal successors, (382), 314 states have internal predecessors, (382), 64 states have call successors, (64), 17 states have call predecessors, (64), 20 states have return successors, (108), 76 states have call predecessors, (108), 64 states have call successors, (108) [2025-01-10 01:31:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 554 transitions. [2025-01-10 01:31:20,906 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 554 transitions. Word has length 67 [2025-01-10 01:31:20,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:20,907 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 554 transitions. [2025-01-10 01:31:20,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 16 states have internal predecessors, (67), 10 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2025-01-10 01:31:20,907 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 554 transitions. [2025-01-10 01:31:20,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-01-10 01:31:20,907 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:20,907 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:20,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-10 01:31:21,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:21,108 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:21,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:21,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1260153488, now seen corresponding path program 2 times [2025-01-10 01:31:21,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:21,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520735754] [2025-01-10 01:31:21,109 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:31:21,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:21,112 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-01-10 01:31:21,116 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 72 of 72 statements. [2025-01-10 01:31:21,116 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:31:21,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-10 01:31:21,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:21,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520735754] [2025-01-10 01:31:21,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520735754] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:21,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686350542] [2025-01-10 01:31:21,206 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:31:21,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:21,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:21,210 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:21,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-10 01:31:21,232 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-01-10 01:31:21,245 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 72 of 72 statements. [2025-01-10 01:31:21,245 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:31:21,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:21,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 01:31:21,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:21,392 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-01-10 01:31:21,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-01-10 01:31:21,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686350542] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:31:21,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:31:21,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2025-01-10 01:31:21,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926801692] [2025-01-10 01:31:21,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:21,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-10 01:31:21,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:21,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-10 01:31:21,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2025-01-10 01:31:21,548 INFO L87 Difference]: Start difference. First operand 408 states and 554 transitions. Second operand has 24 states, 23 states have (on average 3.652173913043478) internal successors, (84), 18 states have internal predecessors, (84), 10 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2025-01-10 01:31:22,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:22,059 INFO L93 Difference]: Finished difference Result 499 states and 642 transitions. [2025-01-10 01:31:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-10 01:31:22,060 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.652173913043478) internal successors, (84), 18 states have internal predecessors, (84), 10 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 72 [2025-01-10 01:31:22,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:22,062 INFO L225 Difference]: With dead ends: 499 [2025-01-10 01:31:22,062 INFO L226 Difference]: Without dead ends: 498 [2025-01-10 01:31:22,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2025-01-10 01:31:22,063 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 200 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:22,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 808 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 01:31:22,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2025-01-10 01:31:22,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 478. [2025-01-10 01:31:22,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 368 states have (on average 1.2119565217391304) internal successors, (446), 372 states have internal predecessors, (446), 70 states have call successors, (70), 23 states have call predecessors, (70), 31 states have return successors, (118), 82 states have call predecessors, (118), 70 states have call successors, (118) [2025-01-10 01:31:22,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 634 transitions. [2025-01-10 01:31:22,085 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 634 transitions. Word has length 72 [2025-01-10 01:31:22,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:22,086 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 634 transitions. [2025-01-10 01:31:22,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.652173913043478) internal successors, (84), 18 states have internal predecessors, (84), 10 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2025-01-10 01:31:22,087 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 634 transitions. [2025-01-10 01:31:22,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-01-10 01:31:22,087 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:22,087 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:22,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-10 01:31:22,288 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,SelfDestructingSolverStorable25 [2025-01-10 01:31:22,288 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:22,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:22,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1538351844, now seen corresponding path program 1 times [2025-01-10 01:31:22,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:22,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300848038] [2025-01-10 01:31:22,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:22,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:22,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-01-10 01:31:22,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-01-10 01:31:22,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:22,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:22,434 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-01-10 01:31:22,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:22,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300848038] [2025-01-10 01:31:22,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300848038] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:22,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:22,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-10 01:31:22,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502898830] [2025-01-10 01:31:22,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:22,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 01:31:22,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:22,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 01:31:22,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-01-10 01:31:22,435 INFO L87 Difference]: Start difference. First operand 478 states and 634 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:31:22,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:22,617 INFO L93 Difference]: Finished difference Result 869 states and 1176 transitions. [2025-01-10 01:31:22,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 01:31:22,618 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2025-01-10 01:31:22,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:22,620 INFO L225 Difference]: With dead ends: 869 [2025-01-10 01:31:22,620 INFO L226 Difference]: Without dead ends: 436 [2025-01-10 01:31:22,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2025-01-10 01:31:22,621 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 43 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:22,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 371 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:22,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2025-01-10 01:31:22,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 374. [2025-01-10 01:31:22,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 283 states have (on average 1.254416961130742) internal successors, (355), 295 states have internal predecessors, (355), 55 states have call successors, (55), 23 states have call predecessors, (55), 27 states have return successors, (76), 55 states have call predecessors, (76), 55 states have call successors, (76) [2025-01-10 01:31:22,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 486 transitions. [2025-01-10 01:31:22,638 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 486 transitions. Word has length 76 [2025-01-10 01:31:22,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:22,638 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 486 transitions. [2025-01-10 01:31:22,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:31:22,639 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 486 transitions. [2025-01-10 01:31:22,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-01-10 01:31:22,639 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:22,639 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:22,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-01-10 01:31:22,639 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:22,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:22,640 INFO L85 PathProgramCache]: Analyzing trace with hash 483221857, now seen corresponding path program 1 times [2025-01-10 01:31:22,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:22,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118507070] [2025-01-10 01:31:22,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:22,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:22,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-01-10 01:31:22,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-01-10 01:31:22,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:22,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:22,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [20510905] [2025-01-10 01:31:22,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:22,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:22,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:22,661 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:22,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-10 01:31:22,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-01-10 01:31:22,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-01-10 01:31:22,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:22,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:22,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 01:31:22,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 40 proven. 18 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-01-10 01:31:22,951 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:23,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:23,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118507070] [2025-01-10 01:31:23,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:23,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20510905] [2025-01-10 01:31:23,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20510905] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:23,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:23,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2025-01-10 01:31:23,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307519834] [2025-01-10 01:31:23,109 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:23,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-10 01:31:23,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:23,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-10 01:31:23,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2025-01-10 01:31:23,110 INFO L87 Difference]: Start difference. First operand 374 states and 486 transitions. Second operand has 17 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 8 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2025-01-10 01:31:23,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:23,530 INFO L93 Difference]: Finished difference Result 510 states and 649 transitions. [2025-01-10 01:31:23,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-10 01:31:23,531 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 8 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) Word has length 80 [2025-01-10 01:31:23,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:23,533 INFO L225 Difference]: With dead ends: 510 [2025-01-10 01:31:23,533 INFO L226 Difference]: Without dead ends: 506 [2025-01-10 01:31:23,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2025-01-10 01:31:23,534 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 112 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:23,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 509 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 01:31:23,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2025-01-10 01:31:23,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 447. [2025-01-10 01:31:23,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 341 states have (on average 1.2316715542521994) internal successors, (420), 351 states have internal predecessors, (420), 63 states have call successors, (63), 27 states have call predecessors, (63), 34 states have return successors, (92), 68 states have call predecessors, (92), 63 states have call successors, (92) [2025-01-10 01:31:23,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 575 transitions. [2025-01-10 01:31:23,551 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 575 transitions. Word has length 80 [2025-01-10 01:31:23,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:23,551 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 575 transitions. [2025-01-10 01:31:23,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 8 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2025-01-10 01:31:23,551 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 575 transitions. [2025-01-10 01:31:23,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-01-10 01:31:23,553 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:23,553 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:23,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-01-10 01:31:23,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-01-10 01:31:23,754 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting binomialCoefficientErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:23,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:23,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1252132622, now seen corresponding path program 1 times [2025-01-10 01:31:23,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:23,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901797738] [2025-01-10 01:31:23,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:23,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:23,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-10 01:31:23,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-10 01:31:23,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:23,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:23,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626603986] [2025-01-10 01:31:23,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:23,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:23,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:23,766 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:23,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-10 01:31:23,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-10 01:31:23,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-10 01:31:23,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:23,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:23,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 01:31:23,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:23,864 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-01-10 01:31:23,864 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 01:31:23,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:23,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901797738] [2025-01-10 01:31:23,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:23,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626603986] [2025-01-10 01:31:23,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626603986] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:23,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:23,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 01:31:23,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556729657] [2025-01-10 01:31:23,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:23,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 01:31:23,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:23,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 01:31:23,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-10 01:31:23,865 INFO L87 Difference]: Start difference. First operand 447 states and 575 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:31:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:23,910 INFO L93 Difference]: Finished difference Result 447 states and 575 transitions. [2025-01-10 01:31:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 01:31:23,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2025-01-10 01:31:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:23,913 INFO L225 Difference]: With dead ends: 447 [2025-01-10 01:31:23,913 INFO L226 Difference]: Without dead ends: 446 [2025-01-10 01:31:23,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-10 01:31:23,914 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 7 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:23,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 152 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:23,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2025-01-10 01:31:23,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2025-01-10 01:31:23,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 341 states have (on average 1.2052785923753666) internal successors, (411), 350 states have internal predecessors, (411), 63 states have call successors, (63), 27 states have call predecessors, (63), 34 states have return successors, (92), 68 states have call predecessors, (92), 63 states have call successors, (92) [2025-01-10 01:31:23,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 566 transitions. [2025-01-10 01:31:23,929 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 566 transitions. Word has length 84 [2025-01-10 01:31:23,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:23,929 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 566 transitions. [2025-01-10 01:31:23,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:31:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 566 transitions. [2025-01-10 01:31:23,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-01-10 01:31:23,930 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:23,930 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:23,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-01-10 01:31:24,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-01-10 01:31:24,130 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting binomialCoefficientErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:24,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:24,131 INFO L85 PathProgramCache]: Analyzing trace with hash 161405678, now seen corresponding path program 1 times [2025-01-10 01:31:24,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:24,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788804387] [2025-01-10 01:31:24,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:24,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:24,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-01-10 01:31:24,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-01-10 01:31:24,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:24,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:24,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538360608] [2025-01-10 01:31:24,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:24,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:24,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:24,144 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:24,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-10 01:31:24,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-01-10 01:31:24,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-01-10 01:31:24,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:24,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:24,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-10 01:31:24,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 49 proven. 7 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-01-10 01:31:24,458 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:24,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:24,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788804387] [2025-01-10 01:31:24,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:24,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538360608] [2025-01-10 01:31:24,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538360608] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:24,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:24,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-01-10 01:31:24,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842624001] [2025-01-10 01:31:24,835 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:24,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 01:31:24,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:24,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 01:31:24,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-01-10 01:31:24,836 INFO L87 Difference]: Start difference. First operand 446 states and 566 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:31:25,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:25,089 INFO L93 Difference]: Finished difference Result 569 states and 763 transitions. [2025-01-10 01:31:25,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 01:31:25,090 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 85 [2025-01-10 01:31:25,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:25,092 INFO L225 Difference]: With dead ends: 569 [2025-01-10 01:31:25,095 INFO L226 Difference]: Without dead ends: 568 [2025-01-10 01:31:25,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2025-01-10 01:31:25,096 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 12 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:25,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 223 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 01:31:25,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2025-01-10 01:31:25,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 483. [2025-01-10 01:31:25,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 371 states have (on average 1.1859838274932615) internal successors, (440), 377 states have internal predecessors, (440), 70 states have call successors, (70), 27 states have call predecessors, (70), 34 states have return successors, (99), 78 states have call predecessors, (99), 70 states have call successors, (99) [2025-01-10 01:31:25,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 609 transitions. [2025-01-10 01:31:25,127 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 609 transitions. Word has length 85 [2025-01-10 01:31:25,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:25,127 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 609 transitions. [2025-01-10 01:31:25,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:31:25,128 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 609 transitions. [2025-01-10 01:31:25,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-01-10 01:31:25,128 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:25,128 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:25,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-01-10 01:31:25,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:25,332 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:31:25,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:25,333 INFO L85 PathProgramCache]: Analyzing trace with hash 708608784, now seen corresponding path program 2 times [2025-01-10 01:31:25,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:25,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703463352] [2025-01-10 01:31:25,333 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:31:25,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:25,336 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 86 statements into 2 equivalence classes. [2025-01-10 01:31:25,344 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 86 of 86 statements. [2025-01-10 01:31:25,344 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:31:25,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:25,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387167107] [2025-01-10 01:31:25,345 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:31:25,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:25,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:25,347 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:31:25,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-10 01:31:25,380 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 86 statements into 2 equivalence classes. [2025-01-10 01:31:25,396 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 86 of 86 statements. [2025-01-10 01:31:25,396 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:31:25,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:25,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-01-10 01:31:25,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 52 proven. 22 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-01-10 01:31:25,661 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:32:04,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:04,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703463352] [2025-01-10 01:32:04,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:32:04,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387167107] [2025-01-10 01:32:04,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387167107] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:32:04,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:32:04,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2025-01-10 01:32:04,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435093559] [2025-01-10 01:32:04,291 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:32:04,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-10 01:32:04,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:04,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-10 01:32:04,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=479, Unknown=7, NotChecked=0, Total=552 [2025-01-10 01:32:04,294 INFO L87 Difference]: Start difference. First operand 483 states and 609 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 7 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-01-10 01:32:10,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:10,225 INFO L93 Difference]: Finished difference Result 563 states and 740 transitions. [2025-01-10 01:32:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-10 01:32:10,225 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 7 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 86 [2025-01-10 01:32:10,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:10,228 INFO L225 Difference]: With dead ends: 563 [2025-01-10 01:32:10,228 INFO L226 Difference]: Without dead ends: 561 [2025-01-10 01:32:10,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 42.1s TimeCoverageRelationStatistics Valid=113, Invalid=691, Unknown=8, NotChecked=0, Total=812 [2025-01-10 01:32:10,228 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 65 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:10,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 507 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-10 01:32:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2025-01-10 01:32:10,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 501. [2025-01-10 01:32:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 385 states have (on average 1.1792207792207792) internal successors, (454), 391 states have internal predecessors, (454), 72 states have call successors, (72), 27 states have call predecessors, (72), 36 states have return successors, (108), 82 states have call predecessors, (108), 72 states have call successors, (108) [2025-01-10 01:32:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 634 transitions. [2025-01-10 01:32:10,250 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 634 transitions. Word has length 86 [2025-01-10 01:32:10,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:10,251 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 634 transitions. [2025-01-10 01:32:10,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 7 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-01-10 01:32:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 634 transitions. [2025-01-10 01:32:10,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-01-10 01:32:10,252 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:10,252 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:10,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-01-10 01:32:10,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2025-01-10 01:32:10,453 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:10,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:10,454 INFO L85 PathProgramCache]: Analyzing trace with hash 752964985, now seen corresponding path program 2 times [2025-01-10 01:32:10,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:10,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249258352] [2025-01-10 01:32:10,454 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:32:10,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:10,458 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 100 statements into 2 equivalence classes. [2025-01-10 01:32:10,463 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 100 of 100 statements. [2025-01-10 01:32:10,463 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:32:10,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:10,558 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 64 proven. 44 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-01-10 01:32:10,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:10,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249258352] [2025-01-10 01:32:10,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249258352] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:32:10,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775969439] [2025-01-10 01:32:10,559 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:32:10,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:10,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:32:10,561 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:32:10,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-10 01:32:10,587 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 100 statements into 2 equivalence classes. [2025-01-10 01:32:10,603 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 100 of 100 statements. [2025-01-10 01:32:10,603 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:32:10,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:10,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 01:32:10,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:32:10,644 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 143 proven. 7 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-01-10 01:32:10,644 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:32:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 64 proven. 45 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-01-10 01:32:10,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775969439] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:32:10,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:32:10,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 12 [2025-01-10 01:32:10,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266364951] [2025-01-10 01:32:10,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:32:10,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 01:32:10,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:10,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 01:32:10,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2025-01-10 01:32:10,863 INFO L87 Difference]: Start difference. First operand 501 states and 634 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 8 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) [2025-01-10 01:32:11,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:11,084 INFO L93 Difference]: Finished difference Result 1009 states and 1310 transitions. [2025-01-10 01:32:11,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 01:32:11,084 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 8 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) Word has length 100 [2025-01-10 01:32:11,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:11,086 INFO L225 Difference]: With dead ends: 1009 [2025-01-10 01:32:11,087 INFO L226 Difference]: Without dead ends: 549 [2025-01-10 01:32:11,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 193 SyntacticMatches, 7 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2025-01-10 01:32:11,090 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 39 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:11,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 352 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 01:32:11,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2025-01-10 01:32:11,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 490. [2025-01-10 01:32:11,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 377 states have (on average 1.1830238726790452) internal successors, (446), 383 states have internal predecessors, (446), 70 states have call successors, (70), 27 states have call predecessors, (70), 35 states have return successors, (100), 79 states have call predecessors, (100), 70 states have call successors, (100) [2025-01-10 01:32:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 616 transitions. [2025-01-10 01:32:11,115 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 616 transitions. Word has length 100 [2025-01-10 01:32:11,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:11,116 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 616 transitions. [2025-01-10 01:32:11,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 8 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) [2025-01-10 01:32:11,116 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 616 transitions. [2025-01-10 01:32:11,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-01-10 01:32:11,116 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:11,116 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:11,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-01-10 01:32:11,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:11,317 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:11,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:11,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1833133485, now seen corresponding path program 3 times [2025-01-10 01:32:11,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:11,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917510833] [2025-01-10 01:32:11,317 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:32:11,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:11,324 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 90 statements into 7 equivalence classes. [2025-01-10 01:32:11,334 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 79 of 90 statements. [2025-01-10 01:32:11,335 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-10 01:32:11,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 55 proven. 10 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-01-10 01:32:11,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:11,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917510833] [2025-01-10 01:32:11,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917510833] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:32:11,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252812089] [2025-01-10 01:32:11,465 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:32:11,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:11,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:32:11,466 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:32:11,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-01-10 01:32:11,497 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 90 statements into 7 equivalence classes. [2025-01-10 01:32:11,510 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 60 of 90 statements. [2025-01-10 01:32:11,510 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-10 01:32:11,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:11,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-10 01:32:11,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:32:11,735 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-01-10 01:32:11,735 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:32:12,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252812089] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:32:12,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 01:32:12,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2025-01-10 01:32:12,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426398480] [2025-01-10 01:32:12,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 01:32:12,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-10 01:32:12,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:12,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-10 01:32:12,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2025-01-10 01:32:12,097 INFO L87 Difference]: Start difference. First operand 490 states and 616 transitions. Second operand has 20 states, 19 states have (on average 4.052631578947368) internal successors, (77), 18 states have internal predecessors, (77), 8 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2025-01-10 01:32:12,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:12,710 INFO L93 Difference]: Finished difference Result 1033 states and 1341 transitions. [2025-01-10 01:32:12,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-10 01:32:12,711 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.052631578947368) internal successors, (77), 18 states have internal predecessors, (77), 8 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 90 [2025-01-10 01:32:12,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:12,723 INFO L225 Difference]: With dead ends: 1033 [2025-01-10 01:32:12,723 INFO L226 Difference]: Without dead ends: 578 [2025-01-10 01:32:12,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=165, Invalid=1025, Unknown=0, NotChecked=0, Total=1190 [2025-01-10 01:32:12,725 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 73 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:12,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 603 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-10 01:32:12,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2025-01-10 01:32:12,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 488. [2025-01-10 01:32:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 377 states have (on average 1.1618037135278514) internal successors, (438), 379 states have internal predecessors, (438), 68 states have call successors, (68), 27 states have call predecessors, (68), 35 states have return successors, (101), 81 states have call predecessors, (101), 68 states have call successors, (101) [2025-01-10 01:32:12,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 607 transitions. [2025-01-10 01:32:12,771 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 607 transitions. Word has length 90 [2025-01-10 01:32:12,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:12,771 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 607 transitions. [2025-01-10 01:32:12,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.052631578947368) internal successors, (77), 18 states have internal predecessors, (77), 8 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2025-01-10 01:32:12,771 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 607 transitions. [2025-01-10 01:32:12,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-01-10 01:32:12,772 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:12,772 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:12,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-01-10 01:32:12,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:12,974 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:12,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:12,975 INFO L85 PathProgramCache]: Analyzing trace with hash -2117679665, now seen corresponding path program 1 times [2025-01-10 01:32:12,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:12,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118389972] [2025-01-10 01:32:12,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:12,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:12,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-10 01:32:12,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-10 01:32:12,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:12,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:13,080 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-01-10 01:32:13,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:13,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118389972] [2025-01-10 01:32:13,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118389972] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:32:13,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233203570] [2025-01-10 01:32:13,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:13,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:13,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:32:13,083 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:32:13,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-01-10 01:32:13,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-10 01:32:13,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-10 01:32:13,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:13,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:13,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 01:32:13,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:32:13,186 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-01-10 01:32:13,186 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:32:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-01-10 01:32:13,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233203570] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:32:13,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:32:13,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-01-10 01:32:13,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896030898] [2025-01-10 01:32:13,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:32:13,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 01:32:13,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:13,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 01:32:13,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-01-10 01:32:13,406 INFO L87 Difference]: Start difference. First operand 488 states and 607 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2025-01-10 01:32:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:13,496 INFO L93 Difference]: Finished difference Result 564 states and 715 transitions. [2025-01-10 01:32:13,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 01:32:13,497 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 93 [2025-01-10 01:32:13,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:13,499 INFO L225 Difference]: With dead ends: 564 [2025-01-10 01:32:13,499 INFO L226 Difference]: Without dead ends: 563 [2025-01-10 01:32:13,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-01-10 01:32:13,499 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 8 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:13,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 206 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:32:13,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2025-01-10 01:32:13,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2025-01-10 01:32:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 441 states have (on average 1.1609977324263039) internal successors, (512), 442 states have internal predecessors, (512), 79 states have call successors, (79), 27 states have call predecessors, (79), 35 states have return successors, (112), 93 states have call predecessors, (112), 79 states have call successors, (112) [2025-01-10 01:32:13,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 703 transitions. [2025-01-10 01:32:13,519 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 703 transitions. Word has length 93 [2025-01-10 01:32:13,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:13,519 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 703 transitions. [2025-01-10 01:32:13,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2025-01-10 01:32:13,520 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 703 transitions. [2025-01-10 01:32:13,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-01-10 01:32:13,520 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:13,520 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:13,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-01-10 01:32:13,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:13,721 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:13,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:13,721 INFO L85 PathProgramCache]: Analyzing trace with hash 975327081, now seen corresponding path program 1 times [2025-01-10 01:32:13,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:13,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387609751] [2025-01-10 01:32:13,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:13,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:13,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-01-10 01:32:13,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-01-10 01:32:13,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:13,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-01-10 01:32:13,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:13,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387609751] [2025-01-10 01:32:13,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387609751] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:32:13,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59349074] [2025-01-10 01:32:13,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:13,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:13,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:32:13,819 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:32:13,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-01-10 01:32:13,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-01-10 01:32:13,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-01-10 01:32:13,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:13,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:13,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 01:32:13,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:32:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-01-10 01:32:13,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:32:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-01-10 01:32:14,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59349074] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:32:14,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:32:14,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-01-10 01:32:14,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477925064] [2025-01-10 01:32:14,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:32:14,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-10 01:32:14,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:14,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-10 01:32:14,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2025-01-10 01:32:14,088 INFO L87 Difference]: Start difference. First operand 563 states and 703 transitions. Second operand has 16 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 7 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:32:14,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:14,432 INFO L93 Difference]: Finished difference Result 815 states and 1018 transitions. [2025-01-10 01:32:14,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-10 01:32:14,433 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 7 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 106 [2025-01-10 01:32:14,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:14,436 INFO L225 Difference]: With dead ends: 815 [2025-01-10 01:32:14,436 INFO L226 Difference]: Without dead ends: 802 [2025-01-10 01:32:14,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2025-01-10 01:32:14,436 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 96 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:14,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 521 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 01:32:14,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2025-01-10 01:32:14,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 723. [2025-01-10 01:32:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 571 states have (on average 1.1698774080560421) internal successors, (668), 567 states have internal predecessors, (668), 99 states have call successors, (99), 34 states have call predecessors, (99), 45 states have return successors, (148), 121 states have call predecessors, (148), 99 states have call successors, (148) [2025-01-10 01:32:14,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 915 transitions. [2025-01-10 01:32:14,463 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 915 transitions. Word has length 106 [2025-01-10 01:32:14,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:14,463 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 915 transitions. [2025-01-10 01:32:14,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 7 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:32:14,463 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 915 transitions. [2025-01-10 01:32:14,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-01-10 01:32:14,465 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:14,465 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:14,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-01-10 01:32:14,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2025-01-10 01:32:14,669 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:14,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:14,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1158301142, now seen corresponding path program 2 times [2025-01-10 01:32:14,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:14,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661794791] [2025-01-10 01:32:14,670 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:32:14,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:14,679 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 112 statements into 2 equivalence classes. [2025-01-10 01:32:14,684 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 112 of 112 statements. [2025-01-10 01:32:14,684 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:32:14,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-01-10 01:32:14,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:14,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661794791] [2025-01-10 01:32:14,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661794791] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:32:14,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:32:14,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 01:32:14,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681047041] [2025-01-10 01:32:14,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:32:14,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 01:32:14,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:14,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 01:32:14,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-10 01:32:14,833 INFO L87 Difference]: Start difference. First operand 723 states and 915 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-01-10 01:32:14,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:14,988 INFO L93 Difference]: Finished difference Result 1211 states and 1535 transitions. [2025-01-10 01:32:14,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 01:32:14,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 112 [2025-01-10 01:32:14,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:14,992 INFO L225 Difference]: With dead ends: 1211 [2025-01-10 01:32:14,992 INFO L226 Difference]: Without dead ends: 753 [2025-01-10 01:32:14,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-01-10 01:32:14,994 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 41 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:14,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 442 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:32:14,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2025-01-10 01:32:15,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 749. [2025-01-10 01:32:15,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 592 states have (on average 1.1706081081081081) internal successors, (693), 588 states have internal predecessors, (693), 102 states have call successors, (102), 36 states have call predecessors, (102), 47 states have return successors, (149), 124 states have call predecessors, (149), 102 states have call successors, (149) [2025-01-10 01:32:15,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 944 transitions. [2025-01-10 01:32:15,045 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 944 transitions. Word has length 112 [2025-01-10 01:32:15,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:15,045 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 944 transitions. [2025-01-10 01:32:15,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-01-10 01:32:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 944 transitions. [2025-01-10 01:32:15,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-01-10 01:32:15,047 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:15,047 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:15,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-01-10 01:32:15,047 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:15,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:15,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1066977654, now seen corresponding path program 1 times [2025-01-10 01:32:15,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:15,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005858717] [2025-01-10 01:32:15,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:15,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:15,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-01-10 01:32:15,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-01-10 01:32:15,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:15,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:15,161 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-01-10 01:32:15,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:15,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005858717] [2025-01-10 01:32:15,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005858717] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:32:15,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665619343] [2025-01-10 01:32:15,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:15,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:15,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:32:15,164 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:32:15,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-01-10 01:32:15,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-01-10 01:32:15,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-01-10 01:32:15,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:15,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:15,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 01:32:15,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:32:15,330 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-01-10 01:32:15,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 01:32:15,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665619343] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:32:15,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:32:15,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 15 [2025-01-10 01:32:15,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374070303] [2025-01-10 01:32:15,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:32:15,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 01:32:15,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:15,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 01:32:15,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2025-01-10 01:32:15,332 INFO L87 Difference]: Start difference. First operand 749 states and 944 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-01-10 01:32:15,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:15,511 INFO L93 Difference]: Finished difference Result 1314 states and 1666 transitions. [2025-01-10 01:32:15,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 01:32:15,512 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 115 [2025-01-10 01:32:15,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:15,515 INFO L225 Difference]: With dead ends: 1314 [2025-01-10 01:32:15,515 INFO L226 Difference]: Without dead ends: 708 [2025-01-10 01:32:15,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2025-01-10 01:32:15,517 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 41 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:15,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 367 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:32:15,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2025-01-10 01:32:15,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 701. [2025-01-10 01:32:15,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 554 states have (on average 1.1714801444043321) internal successors, (649), 552 states have internal predecessors, (649), 94 states have call successors, (94), 36 states have call predecessors, (94), 45 states have return successors, (131), 112 states have call predecessors, (131), 94 states have call successors, (131) [2025-01-10 01:32:15,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 874 transitions. [2025-01-10 01:32:15,562 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 874 transitions. Word has length 115 [2025-01-10 01:32:15,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:15,562 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 874 transitions. [2025-01-10 01:32:15,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-01-10 01:32:15,563 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 874 transitions. [2025-01-10 01:32:15,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-01-10 01:32:15,565 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:15,565 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:15,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-01-10 01:32:15,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:15,766 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:15,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:15,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1164180792, now seen corresponding path program 2 times [2025-01-10 01:32:15,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:15,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957673366] [2025-01-10 01:32:15,766 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:32:15,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:15,770 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes. [2025-01-10 01:32:15,775 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-01-10 01:32:15,776 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:32:15,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:15,864 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-01-10 01:32:15,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:15,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957673366] [2025-01-10 01:32:15,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957673366] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:32:15,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967561471] [2025-01-10 01:32:15,865 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:32:15,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:15,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:32:15,869 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:32:15,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-01-10 01:32:15,896 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes. [2025-01-10 01:32:15,915 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-01-10 01:32:15,915 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:32:15,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:15,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 01:32:15,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:32:15,960 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-01-10 01:32:15,960 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 01:32:15,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967561471] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:32:15,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:32:15,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2025-01-10 01:32:15,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492660980] [2025-01-10 01:32:15,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:32:15,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 01:32:15,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:15,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 01:32:15,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-10 01:32:15,961 INFO L87 Difference]: Start difference. First operand 701 states and 874 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:32:16,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:16,017 INFO L93 Difference]: Finished difference Result 1056 states and 1316 transitions. [2025-01-10 01:32:16,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 01:32:16,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 115 [2025-01-10 01:32:16,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:16,021 INFO L225 Difference]: With dead ends: 1056 [2025-01-10 01:32:16,021 INFO L226 Difference]: Without dead ends: 596 [2025-01-10 01:32:16,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-10 01:32:16,022 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 15 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:16,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 206 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:32:16,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2025-01-10 01:32:16,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 595. [2025-01-10 01:32:16,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 470 states have (on average 1.1659574468085105) internal successors, (548), 469 states have internal predecessors, (548), 79 states have call successors, (79), 31 states have call predecessors, (79), 38 states have return successors, (111), 94 states have call predecessors, (111), 79 states have call successors, (111) [2025-01-10 01:32:16,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 738 transitions. [2025-01-10 01:32:16,043 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 738 transitions. Word has length 115 [2025-01-10 01:32:16,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:16,044 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 738 transitions. [2025-01-10 01:32:16,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:32:16,044 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 738 transitions. [2025-01-10 01:32:16,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-01-10 01:32:16,045 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:16,045 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:16,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-01-10 01:32:16,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-01-10 01:32:16,246 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:16,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:16,246 INFO L85 PathProgramCache]: Analyzing trace with hash 597047106, now seen corresponding path program 3 times [2025-01-10 01:32:16,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:16,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013016432] [2025-01-10 01:32:16,246 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:32:16,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:16,251 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 125 statements into 8 equivalence classes. [2025-01-10 01:32:16,252 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 125 statements. [2025-01-10 01:32:16,252 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 01:32:16,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:16,283 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2025-01-10 01:32:16,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:16,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013016432] [2025-01-10 01:32:16,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013016432] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:32:16,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041796144] [2025-01-10 01:32:16,283 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:32:16,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:16,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:32:16,288 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:32:16,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-01-10 01:32:16,316 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 125 statements into 8 equivalence classes. [2025-01-10 01:32:16,320 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 125 statements. [2025-01-10 01:32:16,320 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 01:32:16,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:16,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 01:32:16,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:32:16,422 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2025-01-10 01:32:16,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:32:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2025-01-10 01:32:16,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041796144] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:32:16,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:32:16,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-01-10 01:32:16,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630168813] [2025-01-10 01:32:16,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:32:16,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 01:32:16,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:16,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 01:32:16,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-10 01:32:16,575 INFO L87 Difference]: Start difference. First operand 595 states and 738 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 6 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-01-10 01:32:16,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:16,683 INFO L93 Difference]: Finished difference Result 598 states and 738 transitions. [2025-01-10 01:32:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 01:32:16,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 6 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 125 [2025-01-10 01:32:16,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:16,686 INFO L225 Difference]: With dead ends: 598 [2025-01-10 01:32:16,686 INFO L226 Difference]: Without dead ends: 597 [2025-01-10 01:32:16,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 244 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2025-01-10 01:32:16,686 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 57 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:16,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 251 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:32:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2025-01-10 01:32:16,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 595. [2025-01-10 01:32:16,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 470 states have (on average 1.1617021276595745) internal successors, (546), 469 states have internal predecessors, (546), 79 states have call successors, (79), 31 states have call predecessors, (79), 38 states have return successors, (111), 94 states have call predecessors, (111), 79 states have call successors, (111) [2025-01-10 01:32:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 736 transitions. [2025-01-10 01:32:16,715 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 736 transitions. Word has length 125 [2025-01-10 01:32:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:16,715 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 736 transitions. [2025-01-10 01:32:16,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 6 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-01-10 01:32:16,715 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 736 transitions. [2025-01-10 01:32:16,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-10 01:32:16,716 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:16,716 INFO L218 NwaCegarLoop]: trace histogram [14, 11, 7, 7, 7, 7, 7, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:16,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-01-10 01:32:16,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-01-10 01:32:16,920 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:16,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:16,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1185593345, now seen corresponding path program 1 times [2025-01-10 01:32:16,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:16,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217937776] [2025-01-10 01:32:16,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:16,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:16,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-10 01:32:16,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-10 01:32:16,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:16,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:17,103 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 97 proven. 46 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2025-01-10 01:32:17,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:17,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217937776] [2025-01-10 01:32:17,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217937776] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:32:17,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360949696] [2025-01-10 01:32:17,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:17,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:17,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:32:17,106 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:32:17,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-01-10 01:32:17,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-10 01:32:17,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-10 01:32:17,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:17,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:17,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-10 01:32:17,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:32:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 241 proven. 10 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2025-01-10 01:32:17,206 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:32:17,423 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 97 proven. 46 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2025-01-10 01:32:17,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360949696] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:32:17,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:32:17,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 15 [2025-01-10 01:32:17,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106474585] [2025-01-10 01:32:17,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:32:17,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-10 01:32:17,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:17,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-10 01:32:17,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2025-01-10 01:32:17,425 INFO L87 Difference]: Start difference. First operand 595 states and 736 transitions. Second operand has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 11 states have internal predecessors, (60), 8 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2025-01-10 01:32:17,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:17,666 INFO L93 Difference]: Finished difference Result 1218 states and 1522 transitions. [2025-01-10 01:32:17,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 01:32:17,666 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 11 states have internal predecessors, (60), 8 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 140 [2025-01-10 01:32:17,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:17,670 INFO L225 Difference]: With dead ends: 1218 [2025-01-10 01:32:17,670 INFO L226 Difference]: Without dead ends: 693 [2025-01-10 01:32:17,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 269 SyntacticMatches, 12 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2025-01-10 01:32:17,671 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 59 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:17,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 420 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 01:32:17,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2025-01-10 01:32:17,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 688. [2025-01-10 01:32:17,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 542 states have (on average 1.1586715867158672) internal successors, (628), 539 states have internal predecessors, (628), 93 states have call successors, (93), 38 states have call predecessors, (93), 45 states have return successors, (127), 110 states have call predecessors, (127), 93 states have call successors, (127) [2025-01-10 01:32:17,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 848 transitions. [2025-01-10 01:32:17,696 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 848 transitions. Word has length 140 [2025-01-10 01:32:17,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:17,696 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 848 transitions. [2025-01-10 01:32:17,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 11 states have internal predecessors, (60), 8 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2025-01-10 01:32:17,696 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 848 transitions. [2025-01-10 01:32:17,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-01-10 01:32:17,697 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:17,697 INFO L218 NwaCegarLoop]: trace histogram [14, 11, 7, 7, 7, 7, 7, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:17,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-01-10 01:32:17,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-01-10 01:32:17,898 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:17,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:17,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1828012230, now seen corresponding path program 1 times [2025-01-10 01:32:17,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:17,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493975243] [2025-01-10 01:32:17,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:17,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:17,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-10 01:32:17,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-10 01:32:17,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:17,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 94 proven. 43 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2025-01-10 01:32:18,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:18,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493975243] [2025-01-10 01:32:18,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493975243] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:32:18,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178654552] [2025-01-10 01:32:18,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:18,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:18,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:32:18,017 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:32:18,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-01-10 01:32:18,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-10 01:32:18,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-10 01:32:18,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:18,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:18,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 01:32:18,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:32:18,121 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 226 proven. 7 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2025-01-10 01:32:18,122 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:32:18,298 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 94 proven. 43 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2025-01-10 01:32:18,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178654552] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:32:18,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:32:18,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-01-10 01:32:18,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690482638] [2025-01-10 01:32:18,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:32:18,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 01:32:18,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:18,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 01:32:18,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-01-10 01:32:18,300 INFO L87 Difference]: Start difference. First operand 688 states and 848 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 8 states have internal predecessors, (56), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:32:18,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:18,468 INFO L93 Difference]: Finished difference Result 1244 states and 1552 transitions. [2025-01-10 01:32:18,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-10 01:32:18,468 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 8 states have internal predecessors, (56), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 144 [2025-01-10 01:32:18,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:18,472 INFO L225 Difference]: With dead ends: 1244 [2025-01-10 01:32:18,472 INFO L226 Difference]: Without dead ends: 722 [2025-01-10 01:32:18,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 281 SyntacticMatches, 8 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2025-01-10 01:32:18,473 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 51 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:18,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 361 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:32:18,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2025-01-10 01:32:18,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 669. [2025-01-10 01:32:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 526 states have (on average 1.1577946768060836) internal successors, (609), 524 states have internal predecessors, (609), 92 states have call successors, (92), 38 states have call predecessors, (92), 43 states have return successors, (122), 106 states have call predecessors, (122), 92 states have call successors, (122) [2025-01-10 01:32:18,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 823 transitions. [2025-01-10 01:32:18,501 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 823 transitions. Word has length 144 [2025-01-10 01:32:18,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:18,501 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 823 transitions. [2025-01-10 01:32:18,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 8 states have internal predecessors, (56), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:32:18,502 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 823 transitions. [2025-01-10 01:32:18,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-01-10 01:32:18,503 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:18,503 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:18,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-01-10 01:32:18,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:18,707 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:18,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:18,708 INFO L85 PathProgramCache]: Analyzing trace with hash -2067349401, now seen corresponding path program 1 times [2025-01-10 01:32:18,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:18,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990550567] [2025-01-10 01:32:18,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:18,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:18,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-10 01:32:18,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-10 01:32:18,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:18,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2025-01-10 01:32:18,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:18,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990550567] [2025-01-10 01:32:18,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990550567] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:32:18,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:32:18,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-10 01:32:18,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698891115] [2025-01-10 01:32:18,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:32:18,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 01:32:18,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:18,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 01:32:18,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-01-10 01:32:18,843 INFO L87 Difference]: Start difference. First operand 669 states and 823 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-10 01:32:19,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:19,063 INFO L93 Difference]: Finished difference Result 1177 states and 1459 transitions. [2025-01-10 01:32:19,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-10 01:32:19,064 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 134 [2025-01-10 01:32:19,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:19,067 INFO L225 Difference]: With dead ends: 1177 [2025-01-10 01:32:19,067 INFO L226 Difference]: Without dead ends: 680 [2025-01-10 01:32:19,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2025-01-10 01:32:19,068 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 40 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:19,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 349 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 01:32:19,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2025-01-10 01:32:19,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 669. [2025-01-10 01:32:19,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 526 states have (on average 1.1577946768060836) internal successors, (609), 524 states have internal predecessors, (609), 92 states have call successors, (92), 38 states have call predecessors, (92), 43 states have return successors, (120), 106 states have call predecessors, (120), 92 states have call successors, (120) [2025-01-10 01:32:19,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 821 transitions. [2025-01-10 01:32:19,093 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 821 transitions. Word has length 134 [2025-01-10 01:32:19,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:19,093 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 821 transitions. [2025-01-10 01:32:19,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-10 01:32:19,094 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 821 transitions. [2025-01-10 01:32:19,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-10 01:32:19,094 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:19,094 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:19,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-01-10 01:32:19,095 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:19,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:19,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1808088418, now seen corresponding path program 1 times [2025-01-10 01:32:19,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:19,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687634027] [2025-01-10 01:32:19,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:19,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:19,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-10 01:32:19,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-10 01:32:19,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:19,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 94 proven. 26 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2025-01-10 01:32:19,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:32:19,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687634027] [2025-01-10 01:32:19,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687634027] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:32:19,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155634718] [2025-01-10 01:32:19,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:32:19,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:19,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:32:19,238 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:32:19,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-01-10 01:32:19,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-10 01:32:19,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-10 01:32:19,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:32:19,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:19,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 01:32:19,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:32:19,346 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 232 proven. 2 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2025-01-10 01:32:19,346 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:32:19,618 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 94 proven. 27 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2025-01-10 01:32:19,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155634718] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:32:19,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:32:19,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 14 [2025-01-10 01:32:19,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099724493] [2025-01-10 01:32:19,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:32:19,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-10 01:32:19,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:32:19,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-10 01:32:19,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2025-01-10 01:32:19,620 INFO L87 Difference]: Start difference. First operand 669 states and 821 transitions. Second operand has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 8 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2025-01-10 01:32:19,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:32:19,934 INFO L93 Difference]: Finished difference Result 1306 states and 1638 transitions. [2025-01-10 01:32:19,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 01:32:19,935 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 8 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) Word has length 140 [2025-01-10 01:32:19,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:32:19,938 INFO L225 Difference]: With dead ends: 1306 [2025-01-10 01:32:19,938 INFO L226 Difference]: Without dead ends: 693 [2025-01-10 01:32:19,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 271 SyntacticMatches, 9 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2025-01-10 01:32:19,940 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 37 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 01:32:19,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 555 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 01:32:19,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2025-01-10 01:32:19,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 669. [2025-01-10 01:32:19,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 526 states have (on average 1.1520912547528517) internal successors, (606), 524 states have internal predecessors, (606), 92 states have call successors, (92), 38 states have call predecessors, (92), 43 states have return successors, (118), 106 states have call predecessors, (118), 92 states have call successors, (118) [2025-01-10 01:32:19,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 816 transitions. [2025-01-10 01:32:19,985 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 816 transitions. Word has length 140 [2025-01-10 01:32:19,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:32:19,986 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 816 transitions. [2025-01-10 01:32:19,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 8 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2025-01-10 01:32:19,988 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 816 transitions. [2025-01-10 01:32:19,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-01-10 01:32:19,989 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:32:19,989 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:32:19,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-01-10 01:32:20,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2025-01-10 01:32:20,193 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 01:32:20,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:32:20,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1205517157, now seen corresponding path program 2 times [2025-01-10 01:32:20,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:32:20,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632496771] [2025-01-10 01:32:20,195 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:32:20,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:32:20,203 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 144 statements into 2 equivalence classes. [2025-01-10 01:32:20,215 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 144 of 144 statements. [2025-01-10 01:32:20,216 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:32:20,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:32:20,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124708607] [2025-01-10 01:32:20,217 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:32:20,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:32:20,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:32:20,221 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:32:20,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-01-10 01:32:20,252 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 144 statements into 2 equivalence classes. [2025-01-10 01:32:20,279 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 144 of 144 statements. [2025-01-10 01:32:20,279 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:32:20,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:32:20,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-01-10 01:32:20,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:32:20,589 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 148 proven. 27 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2025-01-10 01:32:20,589 INFO L312 TraceCheckSpWp]: Computing backward predicates...