./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/TerminatorRec02.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/TerminatorRec02.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 744c3d26555bbd53a7a0d9e7c64efe010ba06d0f67ec9ca21eb74ed1148222d3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 01:31:29,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 01:31:29,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-01-10 01:31:29,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 01:31:29,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 01:31:29,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 01:31:29,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 01:31:29,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 01:31:29,572 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 01:31:29,572 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 01:31:29,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 01:31:29,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 01:31:29,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 01:31:29,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 01:31:29,573 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 01:31:29,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 01:31:29,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 01:31:29,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 01:31:29,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 01:31:29,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 01:31:29,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 01:31:29,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 01:31:29,574 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:31:29,574 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:31:29,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 01:31:29,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 01:31:29,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 01:31:29,575 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 01:31:29,575 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 01:31:29,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 01:31:29,575 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 -> 744c3d26555bbd53a7a0d9e7c64efe010ba06d0f67ec9ca21eb74ed1148222d3 [2025-01-10 01:31:29,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 01:31:29,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 01:31:29,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 01:31:29,811 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 01:31:29,811 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 01:31:29,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/TerminatorRec02.c [2025-01-10 01:31:30,923 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5736b71eb/bf79b90d63104a5bae96f1b58ab930f0/FLAG5d75d767f [2025-01-10 01:31:31,121 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 01:31:31,122 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-numeric/TerminatorRec02.c [2025-01-10 01:31:31,143 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5736b71eb/bf79b90d63104a5bae96f1b58ab930f0/FLAG5d75d767f [2025-01-10 01:31:31,488 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5736b71eb/bf79b90d63104a5bae96f1b58ab930f0 [2025-01-10 01:31:31,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 01:31:31,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 01:31:31,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 01:31:31,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 01:31:31,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 01:31:31,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,499 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed66158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31, skipping insertion in model container [2025-01-10 01:31:31,499 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,508 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 01:31:31,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:31:31,599 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 01:31:31,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:31:31,617 INFO L204 MainTranslator]: Completed translation [2025-01-10 01:31:31,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31 WrapperNode [2025-01-10 01:31:31,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 01:31:31,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 01:31:31,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 01:31:31,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 01:31:31,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,637 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2025-01-10 01:31:31,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 01:31:31,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 01:31:31,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 01:31:31,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 01:31:31,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,646 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,649 INFO L175 MemorySlicer]: No memory access in input program. [2025-01-10 01:31:31,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,653 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 01:31:31,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 01:31:31,660 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 01:31:31,660 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 01:31:31,661 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (1/1) ... [2025-01-10 01:31:31,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:31:31,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:31,686 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 01:31:31,689 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 01:31:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2025-01-10 01:31:31,708 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2025-01-10 01:31:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 01:31:31,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 01:31:31,741 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 01:31:31,743 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 01:31:31,819 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-01-10 01:31:31,819 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 01:31:31,826 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 01:31:31,827 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 01:31:31,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:31:31 BoogieIcfgContainer [2025-01-10 01:31:31,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 01:31:31,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 01:31:31,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 01:31:31,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 01:31:31,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:31:31" (1/3) ... [2025-01-10 01:31:31,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dabd124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:31:31, skipping insertion in model container [2025-01-10 01:31:31,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:31" (2/3) ... [2025-01-10 01:31:31,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dabd124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:31:31, skipping insertion in model container [2025-01-10 01:31:31,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:31:31" (3/3) ... [2025-01-10 01:31:31,835 INFO L128 eAbstractionObserver]: Analyzing ICFG TerminatorRec02.c [2025-01-10 01:31:31,844 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 01:31:31,846 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG TerminatorRec02.c that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-01-10 01:31:31,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 01:31:31,891 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;@25b3e6b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 01:31:31,891 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-10 01:31:31,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 01:31:31,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-10 01:31:31,899 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:31,899 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:31,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:31,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:31,903 INFO L85 PathProgramCache]: Analyzing trace with hash -211694171, now seen corresponding path program 1 times [2025-01-10 01:31:31,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:31,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248569291] [2025-01-10 01:31:31,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:31,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:31,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 01:31:31,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 01:31:31,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:31,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:32,034 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 01:31:32,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:32,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248569291] [2025-01-10 01:31:32,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248569291] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:32,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:32,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 01:31:32,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281040192] [2025-01-10 01:31:32,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:32,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 01:31:32,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:32,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 01:31:32,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 01:31:32,055 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:31:32,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:32,090 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2025-01-10 01:31:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 01:31:32,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-01-10 01:31:32,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:32,096 INFO L225 Difference]: With dead ends: 23 [2025-01-10 01:31:32,096 INFO L226 Difference]: Without dead ends: 18 [2025-01-10 01:31:32,098 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 01:31:32,100 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 31 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 01:31:32,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 31 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:32,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-01-10 01:31:32,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-01-10 01:31:32,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 01:31:32,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2025-01-10 01:31:32,127 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 8 [2025-01-10 01:31:32,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:32,129 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2025-01-10 01:31:32,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:31:32,129 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2025-01-10 01:31:32,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 01:31:32,129 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:32,129 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:32,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 01:31:32,130 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:32,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:32,131 INFO L85 PathProgramCache]: Analyzing trace with hash 2027415328, now seen corresponding path program 1 times [2025-01-10 01:31:32,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:32,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44927166] [2025-01-10 01:31:32,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:32,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:32,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 01:31:32,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 01:31:32,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:32,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:32,197 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 01:31:32,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:32,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44927166] [2025-01-10 01:31:32,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44927166] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:32,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:32,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 01:31:32,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523405675] [2025-01-10 01:31:32,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:32,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 01:31:32,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:32,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 01:31:32,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:31:32,199 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:31:32,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:32,247 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2025-01-10 01:31:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:31:32,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-10 01:31:32,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:32,248 INFO L225 Difference]: With dead ends: 18 [2025-01-10 01:31:32,248 INFO L226 Difference]: Without dead ends: 17 [2025-01-10 01:31:32,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-10 01:31:32,249 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:32,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 19 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:32,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-01-10 01:31:32,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-01-10 01:31:32,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 01:31:32,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2025-01-10 01:31:32,253 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2025-01-10 01:31:32,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:32,253 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2025-01-10 01:31:32,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:31:32,253 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2025-01-10 01:31:32,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-01-10 01:31:32,253 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:32,253 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:32,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 01:31:32,254 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:32,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:32,257 INFO L85 PathProgramCache]: Analyzing trace with hash -768770172, now seen corresponding path program 1 times [2025-01-10 01:31:32,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:32,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740448553] [2025-01-10 01:31:32,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:32,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:32,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 01:31:32,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 01:31:32,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:32,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:32,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [628908015] [2025-01-10 01:31:32,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:32,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:32,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:32,271 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 01:31:32,273 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 01:31:32,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 01:31:32,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 01:31:32,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:32,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:32,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 01:31:32,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:32,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 01:31:32,409 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 01:31:32,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:32,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740448553] [2025-01-10 01:31:32,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:32,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628908015] [2025-01-10 01:31:32,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628908015] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:32,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:32,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 01:31:32,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479489512] [2025-01-10 01:31:32,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:32,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 01:31:32,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:32,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 01:31:32,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-01-10 01:31:32,412 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 01:31:32,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:32,442 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2025-01-10 01:31:32,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 01:31:32,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2025-01-10 01:31:32,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:32,443 INFO L225 Difference]: With dead ends: 17 [2025-01-10 01:31:32,443 INFO L226 Difference]: Without dead ends: 16 [2025-01-10 01:31:32,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-01-10 01:31:32,444 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:32,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 48 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:32,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-01-10 01:31:32,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-01-10 01:31:32,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 01:31:32,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2025-01-10 01:31:32,449 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 16 [2025-01-10 01:31:32,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:32,449 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2025-01-10 01:31:32,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 01:31:32,449 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2025-01-10 01:31:32,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-01-10 01:31:32,450 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:32,450 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:32,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-10 01:31:32,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:32,651 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:32,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:32,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1059120524, now seen corresponding path program 1 times [2025-01-10 01:31:32,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:32,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268006374] [2025-01-10 01:31:32,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:32,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:32,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 01:31:32,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 01:31:32,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:32,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:32,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362678902] [2025-01-10 01:31:32,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:32,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:32,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:32,674 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 01:31:32,676 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 01:31:32,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 01:31:32,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 01:31:32,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:32,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:32,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 01:31:32,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:32,794 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-10 01:31:32,796 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 01:31:32,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:32,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268006374] [2025-01-10 01:31:32,796 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:32,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362678902] [2025-01-10 01:31:32,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362678902] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:31:32,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:31:32,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 01:31:32,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565279397] [2025-01-10 01:31:32,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:31:32,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 01:31:32,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:32,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 01:31:32,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-10 01:31:32,798 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (3), 1 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 01:31:32,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:32,871 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2025-01-10 01:31:32,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 01:31:32,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (3), 1 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 22 [2025-01-10 01:31:32,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:32,873 INFO L225 Difference]: With dead ends: 22 [2025-01-10 01:31:32,873 INFO L226 Difference]: Without dead ends: 21 [2025-01-10 01:31:32,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-01-10 01:31:32,874 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:32,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 36 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:31:32,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2025-01-10 01:31:32,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2025-01-10 01:31:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 01:31:32,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2025-01-10 01:31:32,880 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 22 [2025-01-10 01:31:32,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:32,880 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2025-01-10 01:31:32,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (3), 1 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 01:31:32,881 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2025-01-10 01:31:32,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-01-10 01:31:32,881 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:32,881 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:32,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-10 01:31:33,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:33,082 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:33,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:33,082 INFO L85 PathProgramCache]: Analyzing trace with hash -333121719, now seen corresponding path program 1 times [2025-01-10 01:31:33,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:33,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264161265] [2025-01-10 01:31:33,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:33,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:33,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-10 01:31:33,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-10 01:31:33,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:33,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:33,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447202938] [2025-01-10 01:31:33,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:31:33,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:33,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:33,115 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 01:31:33,117 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 01:31:33,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-10 01:31:33,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-10 01:31:33,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:33,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:33,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-10 01:31:33,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:33,298 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-10 01:31:33,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:33,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:33,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264161265] [2025-01-10 01:31:33,878 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:33,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447202938] [2025-01-10 01:31:33,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447202938] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:33,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:33,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-01-10 01:31:33,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054482865] [2025-01-10 01:31:33,879 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:33,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 01:31:33,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:33,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 01:31:33,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2025-01-10 01:31:33,880 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 01:31:33,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:33,981 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2025-01-10 01:31:33,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 01:31:33,982 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2025-01-10 01:31:33,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:33,982 INFO L225 Difference]: With dead ends: 27 [2025-01-10 01:31:33,982 INFO L226 Difference]: Without dead ends: 26 [2025-01-10 01:31:33,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2025-01-10 01:31:33,983 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:33,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 45 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:33,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-01-10 01:31:33,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-01-10 01:31:33,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-10 01:31:33,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2025-01-10 01:31:33,986 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 27 [2025-01-10 01:31:33,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:33,986 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2025-01-10 01:31:33,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 01:31:33,986 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2025-01-10 01:31:33,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-01-10 01:31:33,987 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:33,987 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:33,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-10 01:31:34,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:34,188 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:34,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:34,188 INFO L85 PathProgramCache]: Analyzing trace with hash -93038452, now seen corresponding path program 2 times [2025-01-10 01:31:34,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:34,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933694343] [2025-01-10 01:31:34,188 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:31:34,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:34,195 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-01-10 01:31:34,210 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 42 of 42 statements. [2025-01-10 01:31:34,213 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:31:34,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:34,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563100482] [2025-01-10 01:31:34,214 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:31:34,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:34,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:34,217 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 01:31:34,219 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 01:31:34,244 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-01-10 01:31:34,257 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 42 of 42 statements. [2025-01-10 01:31:34,257 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:31:34,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:34,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-01-10 01:31:34,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:34,468 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 01:31:34,468 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:34,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:34,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933694343] [2025-01-10 01:31:34,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:34,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563100482] [2025-01-10 01:31:34,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563100482] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:34,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:34,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2025-01-10 01:31:34,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388855883] [2025-01-10 01:31:34,977 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:34,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-10 01:31:34,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:34,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-10 01:31:34,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2025-01-10 01:31:34,978 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 12 states have internal predecessors, (32), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 01:31:35,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:35,191 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2025-01-10 01:31:35,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 01:31:35,191 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 12 states have internal predecessors, (32), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42 [2025-01-10 01:31:35,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:35,192 INFO L225 Difference]: With dead ends: 32 [2025-01-10 01:31:35,192 INFO L226 Difference]: Without dead ends: 31 [2025-01-10 01:31:35,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2025-01-10 01:31:35,193 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:35,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 52 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-01-10 01:31:35,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2025-01-10 01:31:35,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-10 01:31:35,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2025-01-10 01:31:35,196 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 42 [2025-01-10 01:31:35,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:35,196 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2025-01-10 01:31:35,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 12 states have internal predecessors, (32), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 01:31:35,196 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2025-01-10 01:31:35,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-01-10 01:31:35,197 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:35,197 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:35,202 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 01:31:35,397 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,SelfDestructingSolverStorable5 [2025-01-10 01:31:35,398 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:35,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:35,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1739839982, now seen corresponding path program 3 times [2025-01-10 01:31:35,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:35,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585700354] [2025-01-10 01:31:35,398 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:31:35,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:35,403 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 52 statements into 6 equivalence classes. [2025-01-10 01:31:35,421 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 52 of 52 statements. [2025-01-10 01:31:35,421 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-01-10 01:31:35,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:35,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [251733201] [2025-01-10 01:31:35,422 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:31:35,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:35,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:35,424 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 01:31:35,425 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 01:31:35,447 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 52 statements into 6 equivalence classes. [2025-01-10 01:31:35,535 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 47 of 52 statements. [2025-01-10 01:31:35,535 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-10 01:31:35,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:35,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-01-10 01:31:35,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 29 proven. 36 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-10 01:31:35,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:36,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:36,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585700354] [2025-01-10 01:31:36,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:36,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251733201] [2025-01-10 01:31:36,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251733201] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:36,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:36,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2025-01-10 01:31:36,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464358308] [2025-01-10 01:31:36,618 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:36,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-10 01:31:36,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:36,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-10 01:31:36,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2025-01-10 01:31:36,619 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 13 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-10 01:31:36,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:36,744 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2025-01-10 01:31:36,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-10 01:31:36,745 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 13 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 52 [2025-01-10 01:31:36,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:36,745 INFO L225 Difference]: With dead ends: 37 [2025-01-10 01:31:36,745 INFO L226 Difference]: Without dead ends: 36 [2025-01-10 01:31:36,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2025-01-10 01:31:36,746 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:36,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 65 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:36,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-01-10 01:31:36,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2025-01-10 01:31:36,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 29 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2025-01-10 01:31:36,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2025-01-10 01:31:36,753 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 52 [2025-01-10 01:31:36,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:36,753 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2025-01-10 01:31:36,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 13 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-10 01:31:36,753 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2025-01-10 01:31:36,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-01-10 01:31:36,753 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:36,753 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:36,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-10 01:31:36,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:36,954 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:36,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:36,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1418031143, now seen corresponding path program 4 times [2025-01-10 01:31:36,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:36,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362991954] [2025-01-10 01:31:36,955 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 01:31:36,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:36,963 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 57 statements into 2 equivalence classes. [2025-01-10 01:31:36,974 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 57 of 57 statements. [2025-01-10 01:31:36,974 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 01:31:36,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:36,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190398478] [2025-01-10 01:31:36,976 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 01:31:36,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:36,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:36,979 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 01:31:36,979 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 01:31:37,005 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 57 statements into 2 equivalence classes. [2025-01-10 01:31:37,027 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 57 of 57 statements. [2025-01-10 01:31:37,027 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 01:31:37,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:37,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 41 conjuncts are in the unsatisfiable core [2025-01-10 01:31:37,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:37,294 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 26 proven. 54 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-10 01:31:37,294 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:38,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:38,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362991954] [2025-01-10 01:31:38,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:38,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190398478] [2025-01-10 01:31:38,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190398478] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:38,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:38,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2025-01-10 01:31:38,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748421031] [2025-01-10 01:31:38,038 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:38,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-10 01:31:38,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:38,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-10 01:31:38,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2025-01-10 01:31:38,039 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 20 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 15 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-10 01:31:38,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:38,202 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2025-01-10 01:31:38,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-10 01:31:38,202 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 15 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 57 [2025-01-10 01:31:38,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:38,203 INFO L225 Difference]: With dead ends: 42 [2025-01-10 01:31:38,203 INFO L226 Difference]: Without dead ends: 41 [2025-01-10 01:31:38,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756 [2025-01-10 01:31:38,204 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:38,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 108 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:31:38,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2025-01-10 01:31:38,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2025-01-10 01:31:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 32 states have (on average 1.0625) internal successors, (34), 33 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2025-01-10 01:31:38,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2025-01-10 01:31:38,207 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 57 [2025-01-10 01:31:38,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:38,207 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2025-01-10 01:31:38,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 15 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-10 01:31:38,207 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2025-01-10 01:31:38,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-01-10 01:31:38,208 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:38,208 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:38,213 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 01:31:38,408 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,SelfDestructingSolverStorable7 [2025-01-10 01:31:38,409 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:38,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:38,409 INFO L85 PathProgramCache]: Analyzing trace with hash -268517047, now seen corresponding path program 5 times [2025-01-10 01:31:38,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:38,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142324312] [2025-01-10 01:31:38,409 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 01:31:38,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:38,413 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 67 statements into 7 equivalence classes. [2025-01-10 01:31:38,428 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 67 of 67 statements. [2025-01-10 01:31:38,429 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-01-10 01:31:38,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:38,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1444782607] [2025-01-10 01:31:38,430 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 01:31:38,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:38,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:38,431 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 01:31:38,433 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 01:31:38,463 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 67 statements into 7 equivalence classes. [2025-01-10 01:31:38,484 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 67 of 67 statements. [2025-01-10 01:31:38,484 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-01-10 01:31:38,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:38,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-01-10 01:31:38,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 33 proven. 80 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2025-01-10 01:31:38,764 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:40,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:40,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142324312] [2025-01-10 01:31:40,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:40,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444782607] [2025-01-10 01:31:40,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444782607] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:40,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:40,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2025-01-10 01:31:40,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402137735] [2025-01-10 01:31:40,055 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:40,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-10 01:31:40,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:40,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-10 01:31:40,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=678, Unknown=0, NotChecked=0, Total=812 [2025-01-10 01:31:40,056 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand has 23 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 17 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) [2025-01-10 01:31:40,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:40,247 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2025-01-10 01:31:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-10 01:31:40,247 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 17 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) Word has length 67 [2025-01-10 01:31:40,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:40,248 INFO L225 Difference]: With dead ends: 47 [2025-01-10 01:31:40,248 INFO L226 Difference]: Without dead ends: 46 [2025-01-10 01:31:40,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=778, Unknown=0, NotChecked=0, Total=930 [2025-01-10 01:31:40,249 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:40,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 119 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 01:31:40,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-01-10 01:31:40,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2025-01-10 01:31:40,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 37 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2025-01-10 01:31:40,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2025-01-10 01:31:40,252 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 67 [2025-01-10 01:31:40,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:40,253 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2025-01-10 01:31:40,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 17 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) [2025-01-10 01:31:40,253 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2025-01-10 01:31:40,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-01-10 01:31:40,253 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:40,253 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:40,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-10 01:31:40,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:40,456 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:40,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:40,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2140827276, now seen corresponding path program 6 times [2025-01-10 01:31:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:40,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826990948] [2025-01-10 01:31:40,456 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-10 01:31:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:40,461 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 82 statements into 9 equivalence classes. [2025-01-10 01:31:40,474 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 82 of 82 statements. [2025-01-10 01:31:40,474 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-01-10 01:31:40,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:40,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1442198554] [2025-01-10 01:31:40,476 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-10 01:31:40,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:40,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:40,478 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 01:31:40,484 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 01:31:40,529 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 82 statements into 9 equivalence classes. [2025-01-10 01:31:40,783 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 82 of 82 statements. [2025-01-10 01:31:40,783 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-01-10 01:31:40,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:40,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 66 conjuncts are in the unsatisfiable core [2025-01-10 01:31:40,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 53 proven. 135 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2025-01-10 01:31:41,281 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:42,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:42,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826990948] [2025-01-10 01:31:42,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:42,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442198554] [2025-01-10 01:31:42,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442198554] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:42,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:42,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2025-01-10 01:31:42,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778161859] [2025-01-10 01:31:42,419 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:42,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-01-10 01:31:42,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:42,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-01-10 01:31:42,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=885, Unknown=0, NotChecked=0, Total=1056 [2025-01-10 01:31:42,420 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 20 states have internal predecessors, (48), 4 states have call successors, (5), 1 states have call predecessors, (5), 7 states have return successors, (7), 7 states have call predecessors, (7), 3 states have call successors, (7) [2025-01-10 01:31:42,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:42,700 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2025-01-10 01:31:42,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-10 01:31:42,701 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 20 states have internal predecessors, (48), 4 states have call successors, (5), 1 states have call predecessors, (5), 7 states have return successors, (7), 7 states have call predecessors, (7), 3 states have call successors, (7) Word has length 82 [2025-01-10 01:31:42,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:42,701 INFO L225 Difference]: With dead ends: 52 [2025-01-10 01:31:42,701 INFO L226 Difference]: Without dead ends: 51 [2025-01-10 01:31:42,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=999, Unknown=0, NotChecked=0, Total=1190 [2025-01-10 01:31:42,702 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:42,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 152 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 01:31:42,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2025-01-10 01:31:42,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2025-01-10 01:31:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.05) internal successors, (42), 41 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) [2025-01-10 01:31:42,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2025-01-10 01:31:42,706 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 82 [2025-01-10 01:31:42,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:42,706 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2025-01-10 01:31:42,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 20 states have internal predecessors, (48), 4 states have call successors, (5), 1 states have call predecessors, (5), 7 states have return successors, (7), 7 states have call predecessors, (7), 3 states have call successors, (7) [2025-01-10 01:31:42,706 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2025-01-10 01:31:42,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-01-10 01:31:42,707 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:42,707 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:42,712 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 01:31:42,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:42,907 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:42,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:42,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1909340910, now seen corresponding path program 7 times [2025-01-10 01:31:42,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:42,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599126912] [2025-01-10 01:31:42,908 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-10 01:31:42,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:42,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-10 01:31:42,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-10 01:31:42,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:42,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:42,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [788896214] [2025-01-10 01:31:42,925 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-10 01:31:42,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:42,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:42,926 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 01:31:42,928 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 01:31:42,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-10 01:31:43,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-10 01:31:43,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:43,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:43,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 57 conjuncts are in the unsatisfiable core [2025-01-10 01:31:43,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 76 proven. 147 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2025-01-10 01:31:43,416 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:45,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:45,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599126912] [2025-01-10 01:31:45,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:45,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788896214] [2025-01-10 01:31:45,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788896214] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:45,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:45,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2025-01-10 01:31:45,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740102009] [2025-01-10 01:31:45,663 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:45,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-01-10 01:31:45,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:45,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-01-10 01:31:45,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1016, Unknown=0, NotChecked=0, Total=1190 [2025-01-10 01:31:45,664 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand has 29 states, 28 states have (on average 1.75) internal successors, (49), 21 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 8 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:31:45,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:45,948 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2025-01-10 01:31:45,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-10 01:31:45,948 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.75) internal successors, (49), 21 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 8 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) Word has length 92 [2025-01-10 01:31:45,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:45,949 INFO L225 Difference]: With dead ends: 57 [2025-01-10 01:31:45,949 INFO L226 Difference]: Without dead ends: 56 [2025-01-10 01:31:45,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=192, Invalid=1140, Unknown=0, NotChecked=0, Total=1332 [2025-01-10 01:31:45,949 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:45,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 177 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 01:31:45,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-01-10 01:31:45,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-01-10 01:31:45,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 44 states have (on average 1.0454545454545454) internal successors, (46), 45 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2025-01-10 01:31:45,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2025-01-10 01:31:45,953 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 92 [2025-01-10 01:31:45,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:45,954 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2025-01-10 01:31:45,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.75) internal successors, (49), 21 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 8 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-10 01:31:45,954 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2025-01-10 01:31:45,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-01-10 01:31:45,954 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:45,955 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:45,963 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 01:31:46,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:46,155 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:46,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:46,155 INFO L85 PathProgramCache]: Analyzing trace with hash 280997671, now seen corresponding path program 8 times [2025-01-10 01:31:46,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:46,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797181235] [2025-01-10 01:31:46,156 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:31:46,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:46,160 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 97 statements into 2 equivalence classes. [2025-01-10 01:31:46,171 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 97 of 97 statements. [2025-01-10 01:31:46,172 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:31:46,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:46,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1749766523] [2025-01-10 01:31:46,172 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:31:46,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:46,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:46,174 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 01:31:46,176 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 01:31:46,237 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 97 statements into 2 equivalence classes. [2025-01-10 01:31:46,378 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 97 of 97 statements. [2025-01-10 01:31:46,378 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:31:46,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:46,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 65 conjuncts are in the unsatisfiable core [2025-01-10 01:31:46,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:46,807 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 69 proven. 188 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2025-01-10 01:31:46,808 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:49,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:49,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797181235] [2025-01-10 01:31:49,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:49,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749766523] [2025-01-10 01:31:49,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749766523] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:49,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:49,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2025-01-10 01:31:49,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345706810] [2025-01-10 01:31:49,532 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:49,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-10 01:31:49,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:49,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-10 01:31:49,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1212, Unknown=0, NotChecked=0, Total=1406 [2025-01-10 01:31:49,533 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 32 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 23 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-10 01:31:49,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:49,930 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2025-01-10 01:31:49,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-10 01:31:49,931 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 23 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) Word has length 97 [2025-01-10 01:31:49,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:49,931 INFO L225 Difference]: With dead ends: 62 [2025-01-10 01:31:49,931 INFO L226 Difference]: Without dead ends: 61 [2025-01-10 01:31:49,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=1348, Unknown=0, NotChecked=0, Total=1560 [2025-01-10 01:31:49,932 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:49,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 282 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 01:31:49,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2025-01-10 01:31:49,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2025-01-10 01:31:49,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 49 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-10 01:31:49,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2025-01-10 01:31:49,941 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 97 [2025-01-10 01:31:49,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:49,941 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2025-01-10 01:31:49,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 23 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-10 01:31:49,941 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2025-01-10 01:31:49,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-01-10 01:31:49,944 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:49,944 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:49,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-10 01:31:50,144 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,SelfDestructingSolverStorable11 [2025-01-10 01:31:50,144 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:50,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:50,145 INFO L85 PathProgramCache]: Analyzing trace with hash 835472201, now seen corresponding path program 9 times [2025-01-10 01:31:50,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:50,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102958683] [2025-01-10 01:31:50,145 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:31:50,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:50,149 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 107 statements into 11 equivalence classes. [2025-01-10 01:31:50,170 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 107 of 107 statements. [2025-01-10 01:31:50,171 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-01-10 01:31:50,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:50,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781370789] [2025-01-10 01:31:50,172 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:31:50,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:50,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:50,174 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 01:31:50,175 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 01:31:50,268 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 107 statements into 11 equivalence classes. [2025-01-10 01:31:50,738 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 107 of 107 statements. [2025-01-10 01:31:50,738 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-01-10 01:31:50,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:50,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 75 conjuncts are in the unsatisfiable core [2025-01-10 01:31:50,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 46 proven. 285 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2025-01-10 01:31:51,318 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:54,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:54,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102958683] [2025-01-10 01:31:54,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:54,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781370789] [2025-01-10 01:31:54,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781370789] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:54,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:54,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2025-01-10 01:31:54,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474553302] [2025-01-10 01:31:54,765 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:54,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-01-10 01:31:54,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:54,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-01-10 01:31:54,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1485, Unknown=0, NotChecked=0, Total=1722 [2025-01-10 01:31:54,766 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 26 states have internal predecessors, (57), 4 states have call successors, (4), 1 states have call predecessors, (4), 10 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-10 01:31:55,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:55,148 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2025-01-10 01:31:55,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-01-10 01:31:55,148 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 26 states have internal predecessors, (57), 4 states have call successors, (4), 1 states have call predecessors, (4), 10 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) Word has length 107 [2025-01-10 01:31:55,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:55,149 INFO L225 Difference]: With dead ends: 67 [2025-01-10 01:31:55,149 INFO L226 Difference]: Without dead ends: 66 [2025-01-10 01:31:55,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=257, Invalid=1635, Unknown=0, NotChecked=0, Total=1892 [2025-01-10 01:31:55,150 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 10 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:55,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 176 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 01:31:55,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2025-01-10 01:31:55,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2025-01-10 01:31:55,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 52 states have (on average 1.0384615384615385) internal successors, (54), 53 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2025-01-10 01:31:55,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2025-01-10 01:31:55,154 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 107 [2025-01-10 01:31:55,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:55,154 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2025-01-10 01:31:55,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 26 states have internal predecessors, (57), 4 states have call successors, (4), 1 states have call predecessors, (4), 10 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-10 01:31:55,154 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2025-01-10 01:31:55,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-01-10 01:31:55,155 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:55,155 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:55,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-10 01:31:55,355 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,SelfDestructingSolverStorable12 [2025-01-10 01:31:55,356 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:55,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:55,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1057277068, now seen corresponding path program 10 times [2025-01-10 01:31:55,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:55,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313655062] [2025-01-10 01:31:55,356 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 01:31:55,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:55,362 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 122 statements into 2 equivalence classes. [2025-01-10 01:31:55,374 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 122 of 122 statements. [2025-01-10 01:31:55,374 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 01:31:55,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:55,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1865823993] [2025-01-10 01:31:55,376 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 01:31:55,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:55,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:55,378 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 01:31:55,379 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 01:31:55,487 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 122 statements into 2 equivalence classes. [2025-01-10 01:31:55,532 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 122 of 122 statements. [2025-01-10 01:31:55,532 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 01:31:55,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:31:55,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 114 conjuncts are in the unsatisfiable core [2025-01-10 01:31:55,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:31:56,132 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 83 proven. 335 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2025-01-10 01:31:56,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:31:58,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:31:58,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313655062] [2025-01-10 01:31:58,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 01:31:58,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865823993] [2025-01-10 01:31:58,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865823993] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:31:58,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 01:31:58,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2025-01-10 01:31:58,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706481829] [2025-01-10 01:31:58,314 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 01:31:58,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2025-01-10 01:31:58,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:31:58,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2025-01-10 01:31:58,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=2124, Unknown=0, NotChecked=0, Total=2450 [2025-01-10 01:31:58,315 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand has 40 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 29 states have internal predecessors, (64), 4 states have call successors, (5), 1 states have call predecessors, (5), 11 states have return successors, (11), 11 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-10 01:31:58,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:31:58,754 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2025-01-10 01:31:58,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-01-10 01:31:58,754 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 29 states have internal predecessors, (64), 4 states have call successors, (5), 1 states have call predecessors, (5), 11 states have return successors, (11), 11 states have call predecessors, (11), 3 states have call successors, (11) Word has length 122 [2025-01-10 01:31:58,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:31:58,755 INFO L225 Difference]: With dead ends: 72 [2025-01-10 01:31:58,755 INFO L226 Difference]: Without dead ends: 71 [2025-01-10 01:31:58,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=379, Invalid=2377, Unknown=0, NotChecked=0, Total=2756 [2025-01-10 01:31:58,756 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 12 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-10 01:31:58,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 233 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-10 01:31:58,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2025-01-10 01:31:58,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-01-10 01:31:58,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.0357142857142858) internal successors, (58), 57 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) [2025-01-10 01:31:58,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2025-01-10 01:31:58,760 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 122 [2025-01-10 01:31:58,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:31:58,761 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2025-01-10 01:31:58,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 29 states have internal predecessors, (64), 4 states have call successors, (5), 1 states have call predecessors, (5), 11 states have return successors, (11), 11 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-10 01:31:58,761 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2025-01-10 01:31:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-01-10 01:31:58,761 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:31:58,762 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:31:58,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-10 01:31:58,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:58,962 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-01-10 01:31:58,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:31:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash -355174327, now seen corresponding path program 11 times [2025-01-10 01:31:58,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:31:58,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092464651] [2025-01-10 01:31:58,963 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 01:31:58,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:31:58,972 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 127 statements into 13 equivalence classes. [2025-01-10 01:31:58,985 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 127 of 127 statements. [2025-01-10 01:31:58,985 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-01-10 01:31:58,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 01:31:58,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1478824247] [2025-01-10 01:31:58,985 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 01:31:58,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:58,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:31:58,991 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 01:31:58,992 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 01:31:59,115 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 127 statements into 13 equivalence classes. [2025-01-10 01:31:59,202 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 127 of 127 statements. [2025-01-10 01:31:59,202 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-01-10 01:31:59,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 01:31:59,202 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 01:31:59,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-10 01:31:59,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-10 01:31:59,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:31:59,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 01:31:59,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 01:31:59,242 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-10 01:31:59,242 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-01-10 01:31:59,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-01-10 01:31:59,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-01-10 01:31:59,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-01-10 01:31:59,253 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-10 01:31:59,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:31:59,447 INFO L422 BasicCegarLoop]: Path program histogram: [11, 1, 1, 1, 1] [2025-01-10 01:31:59,469 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 01:31:59,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:31:59 BoogieIcfgContainer [2025-01-10 01:31:59,472 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 01:31:59,472 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 01:31:59,472 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 01:31:59,472 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 01:31:59,473 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:31:31" (3/4) ... [2025-01-10 01:31:59,473 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-10 01:31:59,514 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 41. [2025-01-10 01:31:59,569 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 01:31:59,569 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 01:31:59,569 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 01:31:59,569 INFO L158 Benchmark]: Toolchain (without parser) took 28078.94ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 113.7MB in the beginning and 163.1MB in the end (delta: -49.4MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2025-01-10 01:31:59,570 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 226.5MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 01:31:59,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 126.59ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 104.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 01:31:59,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.50ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 103.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 01:31:59,570 INFO L158 Benchmark]: Boogie Preprocessor took 19.95ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 102.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 01:31:59,570 INFO L158 Benchmark]: RCFGBuilder took 168.47ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 92.2MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 01:31:59,570 INFO L158 Benchmark]: TraceAbstraction took 27642.39ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 91.7MB in the beginning and 169.0MB in the end (delta: -77.3MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2025-01-10 01:31:59,570 INFO L158 Benchmark]: Witness Printer took 97.07ms. Allocated memory is still 218.1MB. Free memory was 169.0MB in the beginning and 163.1MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 01:31:59,571 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 226.5MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 126.59ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 104.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.50ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 103.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.95ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 102.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 168.47ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 92.2MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 27642.39ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 91.7MB in the beginning and 169.0MB in the end (delta: -77.3MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. * Witness Printer took 97.07ms. Allocated memory is still 218.1MB. Free memory was 169.0MB in the beginning and 163.1MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int x = __VERIFIER_nondet_int(); [L27] COND FALSE !(x < 0) [L29] int y = __VERIFIER_nondet_int(); [L30] COND FALSE !(y < 0) [L32] int z = __VERIFIER_nondet_int(); [L33] CALL fact(x) VAL [\old(x)=13] [L18] COND TRUE x > 1 VAL [\old(x)=13, x=13] [L19] EXPR x - 1 VAL [\old(x)=13, x=13] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=12] [L18] COND TRUE x > 1 VAL [\old(x)=12, x=12] [L19] EXPR x - 1 VAL [\old(x)=12, x=12] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=11] [L18] COND TRUE x > 1 VAL [\old(x)=11, x=11] [L19] EXPR x - 1 VAL [\old(x)=11, x=11] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=10] [L18] COND TRUE x > 1 VAL [\old(x)=10, x=10] [L19] EXPR x - 1 VAL [\old(x)=10, x=10] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=9] [L18] COND TRUE x > 1 VAL [\old(x)=9, x=9] [L19] EXPR x - 1 VAL [\old(x)=9, x=9] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=8] [L18] COND TRUE x > 1 VAL [\old(x)=8, x=8] [L19] EXPR x - 1 VAL [\old(x)=8, x=8] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=7] [L18] COND TRUE x > 1 VAL [\old(x)=7, x=7] [L19] EXPR x - 1 VAL [\old(x)=7, x=7] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=6] [L18] COND TRUE x > 1 VAL [\old(x)=6, x=6] [L19] EXPR x - 1 VAL [\old(x)=6, x=6] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=5] [L18] COND TRUE x > 1 VAL [\old(x)=5, x=5] [L19] EXPR x - 1 VAL [\old(x)=5, x=5] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=4] [L18] COND TRUE x > 1 VAL [\old(x)=4, x=4] [L19] EXPR x - 1 VAL [\old(x)=4, x=4] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=3] [L18] COND TRUE x > 1 VAL [\old(x)=3, x=3] [L19] EXPR x - 1 VAL [\old(x)=3, x=3] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=2] [L18] COND TRUE x > 1 VAL [\old(x)=2, x=2] [L19] EXPR x - 1 VAL [\old(x)=2, x=2] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=1] [L18] COND FALSE !(x > 1) [L22] return 1; VAL [\old(x)=1, \result=1] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=2, x=2] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=2, \result=2] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=3, x=3] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=3, \result=6] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=4, x=4] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=4, \result=24] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=5, x=5] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=5, \result=120] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=6, x=6] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=6, \result=720] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=7, x=7] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=7, \result=5040] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=8, x=8] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=8, \result=40320] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=9, x=9] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=9, \result=362880] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=10, x=10] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=10, \result=3628800] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=11, x=11] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=11, \result=39916800] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=12, x=12] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=12, \result=479001600] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=13, x=13] [L19] int y = fact(x - 1); [L20] y * x VAL [\old(x)=13] - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 27.6s, OverallIterations: 15, TraceHistogramMax: 13, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 1543 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1365 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6664 IncrementalHoareTripleChecker+Invalid, 6691 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 178 mSDtfsCounter, 6664 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 915 GetRequests, 577 SyntacticMatches, 0 SemanticMatches, 338 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2330 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=14, InterpolantAutomatonStates: 258, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 19.7s InterpolantComputationTime, 1837 NumberOfCodeBlocks, 1832 NumberOfCodeBlocksAsserted, 117 NumberOfCheckSat, 786 ConstructedInterpolants, 0 QuantifiedInterpolants, 4270 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1600 ConjunctsInSsa, 557 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 1227/2516 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-01-10 01:31:59,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)