./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d 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/nla-digbench-scaling/divbin_unwindbound5.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d0e3bce6f4731d98bf8e5301c405fc62948194b21f76143536933e108212a93 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 09:24:15,256 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 09:24:15,321 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 09:24:15,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 09:24:15,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 09:24:15,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 09:24:15,346 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 09:24:15,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 09:24:15,347 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 09:24:15,347 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 09:24:15,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 09:24:15,347 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 09:24:15,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 09:24:15,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 09:24:15,347 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 09:24:15,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 09:24:15,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 09:24:15,348 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 09:24:15,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 09:24:15,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 09:24:15,348 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 09:24:15,348 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 09:24:15,348 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 09:24:15,348 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 09:24:15,348 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 09:24:15,348 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 09:24:15,348 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 09:24:15,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 09:24:15,349 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 09:24:15,349 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 09:24:15,349 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 09:24:15,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 09:24:15,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 09:24:15,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 09:24:15,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 09:24:15,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 09:24:15,349 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 09:24:15,349 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 09:24:15,349 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 09:24:15,350 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 09:24:15,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 09:24:15,350 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 09:24:15,350 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 09:24:15,350 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 09:24:15,350 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 09:24:15,350 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d0e3bce6f4731d98bf8e5301c405fc62948194b21f76143536933e108212a93 [2025-02-08 09:24:15,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 09:24:15,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 09:24:15,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 09:24:15,541 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 09:24:15,541 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 09:24:15,543 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound5.i [2025-02-08 09:24:16,721 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/96a001b72/42236883beef4c25b1e0657bb3306c1f/FLAG178c46c37 [2025-02-08 09:24:17,016 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 09:24:17,016 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound5.i [2025-02-08 09:24:17,029 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/96a001b72/42236883beef4c25b1e0657bb3306c1f/FLAG178c46c37 [2025-02-08 09:24:17,314 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/96a001b72/42236883beef4c25b1e0657bb3306c1f [2025-02-08 09:24:17,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 09:24:17,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 09:24:17,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 09:24:17,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 09:24:17,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 09:24:17,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@558d207b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17, skipping insertion in model container [2025-02-08 09:24:17,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,338 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 09:24:17,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 09:24:17,466 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 09:24:17,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 09:24:17,490 INFO L204 MainTranslator]: Completed translation [2025-02-08 09:24:17,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17 WrapperNode [2025-02-08 09:24:17,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 09:24:17,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 09:24:17,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 09:24:17,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 09:24:17,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,514 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2025-02-08 09:24:17,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 09:24:17,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 09:24:17,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 09:24:17,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 09:24:17,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,522 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,532 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 09:24:17,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,534 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 09:24:17,541 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 09:24:17,541 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 09:24:17,541 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 09:24:17,542 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (1/1) ... [2025-02-08 09:24:17,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 09:24:17,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:17,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 09:24:17,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 09:24:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 09:24:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 09:24:17,598 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 09:24:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 09:24:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 09:24:17,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 09:24:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 09:24:17,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 09:24:17,642 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 09:24:17,644 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 09:24:17,754 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-02-08 09:24:17,755 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 09:24:17,768 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 09:24:17,768 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 09:24:17,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:24:17 BoogieIcfgContainer [2025-02-08 09:24:17,769 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 09:24:17,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 09:24:17,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 09:24:17,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 09:24:17,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 09:24:17" (1/3) ... [2025-02-08 09:24:17,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791e2110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 09:24:17, skipping insertion in model container [2025-02-08 09:24:17,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:17" (2/3) ... [2025-02-08 09:24:17,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791e2110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 09:24:17, skipping insertion in model container [2025-02-08 09:24:17,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:24:17" (3/3) ... [2025-02-08 09:24:17,777 INFO L128 eAbstractionObserver]: Analyzing ICFG divbin_unwindbound5.i [2025-02-08 09:24:17,787 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 09:24:17,788 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG divbin_unwindbound5.i that has 3 procedures, 34 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-02-08 09:24:17,817 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 09:24:17,824 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;@7f6074a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 09:24:17,824 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 09:24:17,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.608695652173913) internal successors, (37), 27 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-08 09:24:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 09:24:17,830 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:17,830 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:17,830 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:17,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:17,833 INFO L85 PathProgramCache]: Analyzing trace with hash -265482271, now seen corresponding path program 1 times [2025-02-08 09:24:17,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:17,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966039176] [2025-02-08 09:24:17,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:17,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:17,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 09:24:17,894 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 09:24:17,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:17,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:17,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 09:24:17,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:17,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966039176] [2025-02-08 09:24:17,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966039176] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:17,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036497837] [2025-02-08 09:24:17,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:17,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:17,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:17,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:17,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 09:24:17,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 09:24:17,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 09:24:17,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:17,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:17,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 09:24:17,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 09:24:17,989 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 09:24:17,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036497837] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:17,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 09:24:17,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 09:24:17,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806614320] [2025-02-08 09:24:17,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:17,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 09:24:17,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:18,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 09:24:18,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 09:24:18,006 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.608695652173913) internal successors, (37), 27 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:24:18,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:18,016 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2025-02-08 09:24:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 09:24:18,017 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2025-02-08 09:24:18,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:18,021 INFO L225 Difference]: With dead ends: 65 [2025-02-08 09:24:18,021 INFO L226 Difference]: Without dead ends: 28 [2025-02-08 09:24:18,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 09:24:18,025 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:18,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:18,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-02-08 09:24:18,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2025-02-08 09:24:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.368421052631579) internal successors, (26), 22 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:24:18,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2025-02-08 09:24:18,048 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 14 [2025-02-08 09:24:18,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:18,049 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2025-02-08 09:24:18,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:24:18,049 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2025-02-08 09:24:18,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 09:24:18,050 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:18,050 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:18,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 09:24:18,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 09:24:18,251 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:18,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:18,251 INFO L85 PathProgramCache]: Analyzing trace with hash -2033804479, now seen corresponding path program 1 times [2025-02-08 09:24:18,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:18,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832161730] [2025-02-08 09:24:18,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:18,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:18,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 09:24:18,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 09:24:18,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:18,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:18,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:18,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832161730] [2025-02-08 09:24:18,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832161730] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:18,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:24:18,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 09:24:18,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678794061] [2025-02-08 09:24:18,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:18,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 09:24:18,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:18,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 09:24:18,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 09:24:18,359 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:24:18,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:18,391 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2025-02-08 09:24:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 09:24:18,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2025-02-08 09:24:18,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:18,393 INFO L225 Difference]: With dead ends: 33 [2025-02-08 09:24:18,393 INFO L226 Difference]: Without dead ends: 32 [2025-02-08 09:24:18,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 09:24:18,394 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:18,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 59 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:18,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-02-08 09:24:18,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2025-02-08 09:24:18,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:24:18,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2025-02-08 09:24:18,402 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 14 [2025-02-08 09:24:18,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:18,403 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2025-02-08 09:24:18,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:24:18,403 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2025-02-08 09:24:18,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-08 09:24:18,403 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:18,404 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:18,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 09:24:18,404 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:18,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:18,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1376570584, now seen corresponding path program 1 times [2025-02-08 09:24:18,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:18,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200517853] [2025-02-08 09:24:18,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:18,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:18,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 09:24:18,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 09:24:18,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:18,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:18,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:18,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:18,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200517853] [2025-02-08 09:24:18,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200517853] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:18,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:24:18,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 09:24:18,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155024764] [2025-02-08 09:24:18,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:18,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 09:24:18,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:18,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 09:24:18,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 09:24:18,457 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:24:18,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:18,491 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2025-02-08 09:24:18,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 09:24:18,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2025-02-08 09:24:18,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:18,493 INFO L225 Difference]: With dead ends: 45 [2025-02-08 09:24:18,493 INFO L226 Difference]: Without dead ends: 31 [2025-02-08 09:24:18,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 09:24:18,494 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 8 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:18,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 68 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:18,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-02-08 09:24:18,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2025-02-08 09:24:18,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 25 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:24:18,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2025-02-08 09:24:18,503 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 15 [2025-02-08 09:24:18,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:18,503 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2025-02-08 09:24:18,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:24:18,503 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2025-02-08 09:24:18,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-08 09:24:18,503 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:18,503 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:18,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 09:24:18,503 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:18,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:18,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1297720685, now seen corresponding path program 1 times [2025-02-08 09:24:18,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:18,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443675438] [2025-02-08 09:24:18,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:18,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:18,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 09:24:18,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 09:24:18,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:18,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:18,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:18,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:18,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443675438] [2025-02-08 09:24:18,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443675438] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:18,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:24:18,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 09:24:18,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388282529] [2025-02-08 09:24:18,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:18,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 09:24:18,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:18,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 09:24:18,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 09:24:18,579 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:24:18,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:18,652 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2025-02-08 09:24:18,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 09:24:18,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2025-02-08 09:24:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:18,653 INFO L225 Difference]: With dead ends: 31 [2025-02-08 09:24:18,653 INFO L226 Difference]: Without dead ends: 30 [2025-02-08 09:24:18,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2025-02-08 09:24:18,653 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 27 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:18,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 59 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:18,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-02-08 09:24:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2025-02-08 09:24:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:24:18,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2025-02-08 09:24:18,657 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 19 [2025-02-08 09:24:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:18,657 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2025-02-08 09:24:18,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:24:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2025-02-08 09:24:18,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-08 09:24:18,658 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:18,658 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:18,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 09:24:18,658 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:18,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:18,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1574635590, now seen corresponding path program 1 times [2025-02-08 09:24:18,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:18,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631685186] [2025-02-08 09:24:18,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:18,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:18,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 09:24:18,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 09:24:18,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:18,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:18,782 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:18,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:18,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631685186] [2025-02-08 09:24:18,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631685186] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:18,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:24:18,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 09:24:18,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782852315] [2025-02-08 09:24:18,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:18,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 09:24:18,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:18,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 09:24:18,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 09:24:18,783 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:24:18,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:18,858 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2025-02-08 09:24:18,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 09:24:18,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2025-02-08 09:24:18,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:18,860 INFO L225 Difference]: With dead ends: 40 [2025-02-08 09:24:18,860 INFO L226 Difference]: Without dead ends: 39 [2025-02-08 09:24:18,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-08 09:24:18,864 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 15 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:18,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 91 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:18,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2025-02-08 09:24:18,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2025-02-08 09:24:18,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:24:18,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2025-02-08 09:24:18,871 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 20 [2025-02-08 09:24:18,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:18,871 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2025-02-08 09:24:18,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:24:18,871 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2025-02-08 09:24:18,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-08 09:24:18,872 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:18,872 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:18,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 09:24:18,872 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:18,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:18,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1574564092, now seen corresponding path program 1 times [2025-02-08 09:24:18,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:18,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576960646] [2025-02-08 09:24:18,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:18,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:18,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 09:24:18,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 09:24:18,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:18,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:18,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:18,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576960646] [2025-02-08 09:24:18,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576960646] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:18,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999162821] [2025-02-08 09:24:18,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:18,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:18,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:18,967 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:18,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 09:24:18,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 09:24:19,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 09:24:19,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:19,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:19,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 09:24:19,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:19,067 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:19,068 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 09:24:19,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999162821] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:19,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 09:24:19,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-02-08 09:24:19,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782935242] [2025-02-08 09:24:19,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:19,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 09:24:19,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:19,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 09:24:19,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-08 09:24:19,069 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:24:19,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:19,107 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2025-02-08 09:24:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 09:24:19,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2025-02-08 09:24:19,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:19,108 INFO L225 Difference]: With dead ends: 38 [2025-02-08 09:24:19,108 INFO L226 Difference]: Without dead ends: 37 [2025-02-08 09:24:19,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-02-08 09:24:19,109 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:19,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 76 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:19,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-02-08 09:24:19,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2025-02-08 09:24:19,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:24:19,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2025-02-08 09:24:19,116 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 20 [2025-02-08 09:24:19,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:19,116 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2025-02-08 09:24:19,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:24:19,116 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2025-02-08 09:24:19,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-08 09:24:19,121 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:19,121 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:19,127 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 [2025-02-08 09:24:19,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:19,322 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:19,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:19,322 INFO L85 PathProgramCache]: Analyzing trace with hash -222621797, now seen corresponding path program 1 times [2025-02-08 09:24:19,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:19,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667831472] [2025-02-08 09:24:19,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:19,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:19,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 09:24:19,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 09:24:19,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:19,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:19,418 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:19,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:19,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667831472] [2025-02-08 09:24:19,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667831472] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:19,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560677842] [2025-02-08 09:24:19,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:19,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:19,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:19,424 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:19,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 09:24:19,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 09:24:19,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 09:24:19,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:19,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:19,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 09:24:19,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:19,523 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:24:19,596 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:19,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560677842] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:24:19,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:24:19,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 10 [2025-02-08 09:24:19,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100826441] [2025-02-08 09:24:19,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:24:19,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 09:24:19,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:19,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 09:24:19,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-02-08 09:24:19,598 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-08 09:24:19,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:19,685 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2025-02-08 09:24:19,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 09:24:19,686 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 24 [2025-02-08 09:24:19,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:19,687 INFO L225 Difference]: With dead ends: 67 [2025-02-08 09:24:19,687 INFO L226 Difference]: Without dead ends: 55 [2025-02-08 09:24:19,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2025-02-08 09:24:19,689 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 32 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:19,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 104 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:19,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-02-08 09:24:19,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2025-02-08 09:24:19,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 41 states have (on average 1.170731707317073) internal successors, (48), 41 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:24:19,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2025-02-08 09:24:19,695 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 24 [2025-02-08 09:24:19,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:19,695 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2025-02-08 09:24:19,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-08 09:24:19,697 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2025-02-08 09:24:19,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-08 09:24:19,697 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:19,697 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:19,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 09:24:19,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:19,900 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:19,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:19,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1687826702, now seen corresponding path program 1 times [2025-02-08 09:24:19,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:19,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405376886] [2025-02-08 09:24:19,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:19,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:19,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 09:24:19,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 09:24:19,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:19,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:20,011 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:20,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:20,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405376886] [2025-02-08 09:24:20,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405376886] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:20,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886422784] [2025-02-08 09:24:20,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:20,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:20,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:20,015 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:20,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 09:24:20,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 09:24:20,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 09:24:20,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:20,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:20,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 09:24:20,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:20,128 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:20,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:24:20,197 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:20,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886422784] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:24:20,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:24:20,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2025-02-08 09:24:20,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469911963] [2025-02-08 09:24:20,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:24:20,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 09:24:20,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:20,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 09:24:20,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2025-02-08 09:24:20,199 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 18 states, 17 states have (on average 2.588235294117647) internal successors, (44), 18 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 09:24:20,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:20,403 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2025-02-08 09:24:20,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-08 09:24:20,404 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.588235294117647) internal successors, (44), 18 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2025-02-08 09:24:20,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:20,408 INFO L225 Difference]: With dead ends: 76 [2025-02-08 09:24:20,408 INFO L226 Difference]: Without dead ends: 75 [2025-02-08 09:24:20,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2025-02-08 09:24:20,409 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 100 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:20,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 139 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:24:20,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2025-02-08 09:24:20,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 69. [2025-02-08 09:24:20,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 59 states have (on average 1.152542372881356) internal successors, (68), 59 states have internal predecessors, (68), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-08 09:24:20,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2025-02-08 09:24:20,422 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 25 [2025-02-08 09:24:20,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:20,422 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2025-02-08 09:24:20,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.588235294117647) internal successors, (44), 18 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 09:24:20,423 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2025-02-08 09:24:20,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-08 09:24:20,423 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:20,423 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:20,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 09:24:20,624 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,SelfDestructingSolverStorable7 [2025-02-08 09:24:20,624 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:20,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:20,625 INFO L85 PathProgramCache]: Analyzing trace with hash 972281457, now seen corresponding path program 1 times [2025-02-08 09:24:20,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:20,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49703835] [2025-02-08 09:24:20,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:20,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:20,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 09:24:20,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 09:24:20,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:20,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:20,849 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-08 09:24:20,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:20,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49703835] [2025-02-08 09:24:20,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49703835] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:20,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581349065] [2025-02-08 09:24:20,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:20,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:20,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:20,852 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:20,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 09:24:20,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 09:24:20,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 09:24:20,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:20,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:20,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 09:24:20,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:21,063 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 09:24:21,063 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:24:21,245 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-08 09:24:21,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581349065] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:24:21,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:24:21,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2025-02-08 09:24:21,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530443685] [2025-02-08 09:24:21,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:24:21,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-02-08 09:24:21,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:21,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-02-08 09:24:21,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=658, Unknown=0, NotChecked=0, Total=870 [2025-02-08 09:24:21,250 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 30 states, 29 states have (on average 3.2758620689655173) internal successors, (95), 30 states have internal predecessors, (95), 11 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2025-02-08 09:24:21,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:21,720 INFO L93 Difference]: Finished difference Result 222 states and 252 transitions. [2025-02-08 09:24:21,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-02-08 09:24:21,721 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.2758620689655173) internal successors, (95), 30 states have internal predecessors, (95), 11 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) Word has length 53 [2025-02-08 09:24:21,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:21,722 INFO L225 Difference]: With dead ends: 222 [2025-02-08 09:24:21,722 INFO L226 Difference]: Without dead ends: 221 [2025-02-08 09:24:21,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=896, Invalid=2296, Unknown=0, NotChecked=0, Total=3192 [2025-02-08 09:24:21,724 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 144 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:21,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 265 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:24:21,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2025-02-08 09:24:21,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 168. [2025-02-08 09:24:21,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 140 states have (on average 1.1285714285714286) internal successors, (158), 140 states have internal predecessors, (158), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-02-08 09:24:21,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 186 transitions. [2025-02-08 09:24:21,750 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 186 transitions. Word has length 53 [2025-02-08 09:24:21,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:21,750 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 186 transitions. [2025-02-08 09:24:21,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.2758620689655173) internal successors, (95), 30 states have internal predecessors, (95), 11 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2025-02-08 09:24:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 186 transitions. [2025-02-08 09:24:21,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-08 09:24:21,751 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:21,751 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:21,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 09:24:21,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:21,955 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:21,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:21,956 INFO L85 PathProgramCache]: Analyzing trace with hash 630532175, now seen corresponding path program 1 times [2025-02-08 09:24:21,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:21,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762281802] [2025-02-08 09:24:21,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:21,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:21,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-08 09:24:21,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-08 09:24:21,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:21,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:22,122 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-08 09:24:22,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:22,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762281802] [2025-02-08 09:24:22,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762281802] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:22,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787189936] [2025-02-08 09:24:22,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:22,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:22,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:22,125 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:22,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 09:24:22,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-08 09:24:22,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-08 09:24:22,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:22,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:22,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 09:24:22,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-08 09:24:22,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:24:22,289 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-08 09:24:22,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787189936] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:24:22,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:24:22,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 12 [2025-02-08 09:24:22,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236952097] [2025-02-08 09:24:22,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:24:22,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 09:24:22,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:22,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 09:24:22,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 09:24:22,291 INFO L87 Difference]: Start difference. First operand 168 states and 186 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-08 09:24:22,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:22,400 INFO L93 Difference]: Finished difference Result 208 states and 230 transitions. [2025-02-08 09:24:22,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 09:24:22,401 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2025-02-08 09:24:22,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:22,402 INFO L225 Difference]: With dead ends: 208 [2025-02-08 09:24:22,406 INFO L226 Difference]: Without dead ends: 182 [2025-02-08 09:24:22,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 112 SyntacticMatches, 10 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=271, Unknown=0, NotChecked=0, Total=420 [2025-02-08 09:24:22,407 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:22,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 151 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:22,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2025-02-08 09:24:22,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 173. [2025-02-08 09:24:22,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 145 states have (on average 1.1310344827586207) internal successors, (164), 145 states have internal predecessors, (164), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-02-08 09:24:22,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 192 transitions. [2025-02-08 09:24:22,442 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 192 transitions. Word has length 61 [2025-02-08 09:24:22,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:22,443 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 192 transitions. [2025-02-08 09:24:22,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-08 09:24:22,443 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 192 transitions. [2025-02-08 09:24:22,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 09:24:22,444 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:22,444 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:22,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 09:24:22,644 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,SelfDestructingSolverStorable9 [2025-02-08 09:24:22,645 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:22,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:22,646 INFO L85 PathProgramCache]: Analyzing trace with hash -523666053, now seen corresponding path program 2 times [2025-02-08 09:24:22,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:22,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174410451] [2025-02-08 09:24:22,646 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:24:22,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:22,651 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 66 statements into 2 equivalence classes. [2025-02-08 09:24:22,672 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 09:24:22,676 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:24:22,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:22,756 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-02-08 09:24:22,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:22,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174410451] [2025-02-08 09:24:22,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174410451] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:22,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:24:22,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 09:24:22,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692340679] [2025-02-08 09:24:22,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:22,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 09:24:22,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:22,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 09:24:22,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 09:24:22,762 INFO L87 Difference]: Start difference. First operand 173 states and 192 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 09:24:22,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:22,807 INFO L93 Difference]: Finished difference Result 199 states and 220 transitions. [2025-02-08 09:24:22,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 09:24:22,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 66 [2025-02-08 09:24:22,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:22,809 INFO L225 Difference]: With dead ends: 199 [2025-02-08 09:24:22,809 INFO L226 Difference]: Without dead ends: 173 [2025-02-08 09:24:22,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 09:24:22,809 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:22,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 91 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:22,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-08 09:24:22,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 154. [2025-02-08 09:24:22,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 126 states have (on average 1.119047619047619) internal successors, (141), 126 states have internal predecessors, (141), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-02-08 09:24:22,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 169 transitions. [2025-02-08 09:24:22,825 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 169 transitions. Word has length 66 [2025-02-08 09:24:22,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:22,826 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 169 transitions. [2025-02-08 09:24:22,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 09:24:22,826 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 169 transitions. [2025-02-08 09:24:22,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-02-08 09:24:22,830 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:22,831 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:22,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 09:24:22,831 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:22,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:22,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1540435058, now seen corresponding path program 1 times [2025-02-08 09:24:22,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:22,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489670481] [2025-02-08 09:24:22,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:22,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:22,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-02-08 09:24:22,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-02-08 09:24:22,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:22,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 90 proven. 7 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2025-02-08 09:24:22,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:22,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489670481] [2025-02-08 09:24:22,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489670481] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:22,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586778805] [2025-02-08 09:24:22,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:22,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:22,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:22,997 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:22,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 09:24:23,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-02-08 09:24:23,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-02-08 09:24:23,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:23,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:23,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-08 09:24:23,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:23,229 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 228 proven. 3 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-02-08 09:24:23,230 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:24:23,377 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 156 proven. 3 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2025-02-08 09:24:23,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586778805] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:24:23,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:24:23,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 14] total 19 [2025-02-08 09:24:23,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263437487] [2025-02-08 09:24:23,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:24:23,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 09:24:23,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:23,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 09:24:23,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2025-02-08 09:24:23,380 INFO L87 Difference]: Start difference. First operand 154 states and 169 transitions. Second operand has 19 states, 19 states have (on average 4.684210526315789) internal successors, (89), 19 states have internal predecessors, (89), 8 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2025-02-08 09:24:23,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:23,670 INFO L93 Difference]: Finished difference Result 248 states and 272 transitions. [2025-02-08 09:24:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-08 09:24:23,671 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.684210526315789) internal successors, (89), 19 states have internal predecessors, (89), 8 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 113 [2025-02-08 09:24:23,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:23,671 INFO L225 Difference]: With dead ends: 248 [2025-02-08 09:24:23,671 INFO L226 Difference]: Without dead ends: 0 [2025-02-08 09:24:23,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 206 SyntacticMatches, 11 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1164, Unknown=0, NotChecked=0, Total=1482 [2025-02-08 09:24:23,674 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 60 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:23,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 335 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:24:23,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-08 09:24:23,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-08 09:24:23,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:23,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-08 09:24:23,675 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2025-02-08 09:24:23,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:23,675 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 09:24:23,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.684210526315789) internal successors, (89), 19 states have internal predecessors, (89), 8 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2025-02-08 09:24:23,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-08 09:24:23,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-08 09:24:23,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-02-08 09:24:23,679 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-02-08 09:24:23,679 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-02-08 09:24:23,679 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-02-08 09:24:23,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-08 09:24:23,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:23,886 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:23,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-08 09:24:24,126 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 09:24:24,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 09:24:24 BoogieIcfgContainer [2025-02-08 09:24:24,137 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 09:24:24,138 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 09:24:24,138 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 09:24:24,138 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 09:24:24,139 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:24:17" (3/4) ... [2025-02-08 09:24:24,140 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 09:24:24,144 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-02-08 09:24:24,145 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-02-08 09:24:24,149 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-02-08 09:24:24,149 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 09:24:24,149 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 09:24:24,149 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 09:24:24,210 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 09:24:24,210 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 09:24:24,210 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 09:24:24,211 INFO L158 Benchmark]: Toolchain (without parser) took 6891.72ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 105.2MB in the beginning and 219.3MB in the end (delta: -114.1MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2025-02-08 09:24:24,211 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:24:24,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.48ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 93.9MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 09:24:24,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.56ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 93.1MB in the end (delta: 780.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:24:24,212 INFO L158 Benchmark]: Boogie Preprocessor took 24.79ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 92.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:24:24,212 INFO L158 Benchmark]: IcfgBuilder took 227.87ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 79.7MB in the end (delta: 12.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 09:24:24,212 INFO L158 Benchmark]: TraceAbstraction took 6367.17ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 78.9MB in the beginning and 225.2MB in the end (delta: -146.3MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2025-02-08 09:24:24,212 INFO L158 Benchmark]: Witness Printer took 72.13ms. Allocated memory is still 310.4MB. Free memory was 225.2MB in the beginning and 219.3MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:24:24,214 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 170.48ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 93.9MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.56ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 93.1MB in the end (delta: 780.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.79ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 92.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 227.87ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 79.7MB in the end (delta: 12.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6367.17ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 78.9MB in the beginning and 225.2MB in the end (delta: -146.3MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. * Witness Printer took 72.13ms. Allocated memory is still 310.4MB. Free memory was 225.2MB in the beginning and 219.3MB in the end (delta: 5.9MB). There was no memory consumed. 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 - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 34 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 12, TraceHistogramMax: 9, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 451 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 451 mSDsluCounter, 1477 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1162 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 891 IncrementalHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 315 mSDtfsCounter, 891 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 736 GetRequests, 526 SyntacticMatches, 21 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1245 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=10, InterpolantAutomatonStates: 158, 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, 12 MinimizatonAttempts, 109 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 754 NumberOfCodeBlocks, 754 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1006 ConstructedInterpolants, 0 QuantifiedInterpolants, 1880 SizeOfPredicates, 34 NumberOfNonLiveVariables, 784 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 24 InterpolantComputations, 7 PerfectInterpolantSequences, 1263/1542 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 36]: Location Invariant Derived location invariant: ((counter == 0) || (((counter == 5) || (counter < 5)) && (1 <= counter))) - InvariantResult [Line: 26]: Location Invariant Derived location invariant: ((((counter <= 5) && (3 <= counter)) || ((6 <= counter) && (counter <= 2147483645))) || ((counter <= 3) && (1 <= counter))) RESULT: Ultimate proved your program to be correct! [2025-02-08 09:24:24,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE