./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-lit/mcmillan2006.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-lit/mcmillan2006.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 45cd9f1eda35cecb580d3b7fe5199506be9e5041f2297c1c3e22e0a862fa68be --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 13:43:15,213 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 13:43:15,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 13:43:15,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 13:43:15,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 13:43:15,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 13:43:15,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 13:43:15,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 13:43:15,332 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 13:43:15,332 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 13:43:15,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 13:43:15,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 13:43:15,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 13:43:15,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 13:43:15,333 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 13:43:15,333 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 13:43:15,333 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 13:43:15,333 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 13:43:15,333 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 13:43:15,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 13:43:15,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 13:43:15,334 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 13:43:15,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 13:43:15,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 13:43:15,334 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 13:43:15,334 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 13:43:15,334 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 13:43:15,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 13:43:15,334 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 13:43:15,334 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 13:43:15,334 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 13:43:15,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 13:43:15,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 13:43:15,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 13:43:15,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:43:15,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 13:43:15,335 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 13:43:15,335 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 13:43:15,335 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 13:43:15,335 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 13:43:15,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 13:43:15,335 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 13:43:15,336 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 13:43:15,336 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 13:43:15,336 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 13:43:15,336 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 -> 45cd9f1eda35cecb580d3b7fe5199506be9e5041f2297c1c3e22e0a862fa68be [2025-02-06 13:43:15,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 13:43:15,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 13:43:15,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 13:43:15,579 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 13:43:15,580 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 13:43:15,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/mcmillan2006.i [2025-02-06 13:43:16,938 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1854d1a34/88d5f420c30d44d79ddb53813cd7afbb/FLAG40174ffa9 [2025-02-06 13:43:17,223 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 13:43:17,224 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-lit/mcmillan2006.i [2025-02-06 13:43:17,229 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1854d1a34/88d5f420c30d44d79ddb53813cd7afbb/FLAG40174ffa9 [2025-02-06 13:43:17,240 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1854d1a34/88d5f420c30d44d79ddb53813cd7afbb [2025-02-06 13:43:17,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 13:43:17,244 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 13:43:17,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 13:43:17,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 13:43:17,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 13:43:17,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64570f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17, skipping insertion in model container [2025-02-06 13:43:17,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,282 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 13:43:17,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:43:17,423 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 13:43:17,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:43:17,451 INFO L204 MainTranslator]: Completed translation [2025-02-06 13:43:17,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17 WrapperNode [2025-02-06 13:43:17,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 13:43:17,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 13:43:17,453 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 13:43:17,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 13:43:17,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,464 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,477 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47 [2025-02-06 13:43:17,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 13:43:17,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 13:43:17,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 13:43:17,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 13:43:17,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,486 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,496 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-02-06 13:43:17,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,502 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,503 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,508 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,509 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 13:43:17,510 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 13:43:17,510 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 13:43:17,510 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 13:43:17,511 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (1/1) ... [2025-02-06 13:43:17,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:43:17,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:43:17,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 13:43:17,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 13:43:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 13:43:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 13:43:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 13:43:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 13:43:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 13:43:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 13:43:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 13:43:17,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 13:43:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 13:43:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 13:43:17,619 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 13:43:17,620 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 13:43:17,742 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-02-06 13:43:17,742 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 13:43:17,756 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 13:43:17,756 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 13:43:17,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:43:17 BoogieIcfgContainer [2025-02-06 13:43:17,758 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 13:43:17,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 13:43:17,764 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 13:43:17,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 13:43:17,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 01:43:17" (1/3) ... [2025-02-06 13:43:17,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fc110d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:43:17, skipping insertion in model container [2025-02-06 13:43:17,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:17" (2/3) ... [2025-02-06 13:43:17,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fc110d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:43:17, skipping insertion in model container [2025-02-06 13:43:17,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:43:17" (3/3) ... [2025-02-06 13:43:17,775 INFO L128 eAbstractionObserver]: Analyzing ICFG mcmillan2006.i [2025-02-06 13:43:17,797 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 13:43:17,798 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mcmillan2006.i that has 1 procedures, 21 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-02-06 13:43:17,860 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 13:43:17,868 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;@25954108, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 13:43:17,868 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-06 13:43:17,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 16 states have (on average 1.5625) internal successors, (25), 20 states have internal predecessors, (25), 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) [2025-02-06 13:43:17,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-06 13:43:17,886 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:17,887 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 13:43:17,888 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)] === [2025-02-06 13:43:17,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:17,897 INFO L85 PathProgramCache]: Analyzing trace with hash 55317753, now seen corresponding path program 1 times [2025-02-06 13:43:17,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:17,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943476616] [2025-02-06 13:43:17,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:17,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:17,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 13:43:17,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 13:43:17,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:17,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:18,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:43:18,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:18,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943476616] [2025-02-06 13:43:18,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943476616] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:43:18,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:43:18,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:43:18,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210535273] [2025-02-06 13:43:18,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:43:18,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:43:18,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:18,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:43:18,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:43:18,131 INFO L87 Difference]: Start difference. First operand has 21 states, 16 states have (on average 1.5625) internal successors, (25), 20 states have internal predecessors, (25), 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2025-02-06 13:43:18,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:18,204 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2025-02-06 13:43:18,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:43:18,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-02-06 13:43:18,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:18,211 INFO L225 Difference]: With dead ends: 38 [2025-02-06 13:43:18,212 INFO L226 Difference]: Without dead ends: 18 [2025-02-06 13:43:18,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:43:18,217 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:18,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 47 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:43:18,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-02-06 13:43:18,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-02-06 13:43:18,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 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) [2025-02-06 13:43:18,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2025-02-06 13:43:18,270 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 5 [2025-02-06 13:43:18,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:18,270 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2025-02-06 13:43:18,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2025-02-06 13:43:18,270 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2025-02-06 13:43:18,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 13:43:18,271 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:18,271 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:43:18,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 13:43:18,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:43:18,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:18,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1301014924, now seen corresponding path program 1 times [2025-02-06 13:43:18,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:18,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221892112] [2025-02-06 13:43:18,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:18,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:18,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 13:43:18,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 13:43:18,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:18,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:18,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:43:18,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:18,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221892112] [2025-02-06 13:43:18,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221892112] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:43:18,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:43:18,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:43:18,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788573404] [2025-02-06 13:43:18,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:43:18,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:43:18,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:18,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:43:18,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:43:18,390 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-02-06 13:43:18,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:18,412 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2025-02-06 13:43:18,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:43:18,412 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-06 13:43:18,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:18,412 INFO L225 Difference]: With dead ends: 25 [2025-02-06 13:43:18,413 INFO L226 Difference]: Without dead ends: 23 [2025-02-06 13:43:18,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:43:18,413 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 31 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 [2025-02-06 13:43:18,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 31 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:43:18,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-02-06 13:43:18,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-02-06 13:43:18,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 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) [2025-02-06 13:43:18,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2025-02-06 13:43:18,416 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 8 [2025-02-06 13:43:18,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:18,416 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2025-02-06 13:43:18,416 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), 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) [2025-02-06 13:43:18,416 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2025-02-06 13:43:18,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 13:43:18,416 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:18,417 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-02-06 13:43:18,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 13:43:18,417 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:43:18,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:18,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1296274824, now seen corresponding path program 1 times [2025-02-06 13:43:18,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:18,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30357653] [2025-02-06 13:43:18,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:18,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:18,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 13:43:18,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 13:43:18,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:18,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:18,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:43:18,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:18,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30357653] [2025-02-06 13:43:18,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30357653] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:43:18,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467834886] [2025-02-06 13:43:18,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:18,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:18,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:43:18,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:43:18,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 13:43:18,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 13:43:18,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 13:43:18,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:18,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:18,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:43:18,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:43:18,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:43:18,746 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:43:18,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467834886] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:43:18,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:43:18,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-06 13:43:18,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815732543] [2025-02-06 13:43:18,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:43:18,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 13:43:18,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:18,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 13:43:18,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:43:18,748 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2025-02-06 13:43:18,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:18,779 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2025-02-06 13:43:18,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 13:43:18,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-06 13:43:18,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:18,779 INFO L225 Difference]: With dead ends: 23 [2025-02-06 13:43:18,779 INFO L226 Difference]: Without dead ends: 22 [2025-02-06 13:43:18,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:43:18,780 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:18,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:43:18,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-02-06 13:43:18,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2025-02-06 13:43:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.263157894736842) internal successors, (24), 21 states have internal predecessors, (24), 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) [2025-02-06 13:43:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2025-02-06 13:43:18,783 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 8 [2025-02-06 13:43:18,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:18,783 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2025-02-06 13:43:18,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2025-02-06 13:43:18,783 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2025-02-06 13:43:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-06 13:43:18,783 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:18,783 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2025-02-06 13:43:18,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 13:43:18,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:18,984 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:43:18,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:18,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1529813893, now seen corresponding path program 1 times [2025-02-06 13:43:18,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:18,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074409241] [2025-02-06 13:43:18,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:18,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:18,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 13:43:18,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 13:43:18,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:18,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:43:19,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:19,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074409241] [2025-02-06 13:43:19,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074409241] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:43:19,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723328606] [2025-02-06 13:43:19,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:19,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:19,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:43:19,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:43:19,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 13:43:19,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 13:43:19,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 13:43:19,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:19,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:19,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:43:19,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:43:19,128 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:43:19,129 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:43:19,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:43:19,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723328606] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:43:19,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:43:19,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-06 13:43:19,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587276525] [2025-02-06 13:43:19,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:43:19,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 13:43:19,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:19,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 13:43:19,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 13:43:19,190 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 12 states have internal predecessors, (20), 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) [2025-02-06 13:43:19,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:19,218 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2025-02-06 13:43:19,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 13:43:19,218 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-02-06 13:43:19,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:19,219 INFO L225 Difference]: With dead ends: 32 [2025-02-06 13:43:19,219 INFO L226 Difference]: Without dead ends: 31 [2025-02-06 13:43:19,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 13:43:19,221 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:19,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:43:19,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-02-06 13:43:19,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2025-02-06 13:43:19,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 30 states have internal predecessors, (36), 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) [2025-02-06 13:43:19,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2025-02-06 13:43:19,227 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 9 [2025-02-06 13:43:19,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:19,227 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2025-02-06 13:43:19,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 12 states have internal predecessors, (20), 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) [2025-02-06 13:43:19,228 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2025-02-06 13:43:19,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-06 13:43:19,228 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:19,228 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:43:19,234 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 [2025-02-06 13:43:19,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:19,429 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:43:19,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:19,429 INFO L85 PathProgramCache]: Analyzing trace with hash 85477102, now seen corresponding path program 1 times [2025-02-06 13:43:19,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:19,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297996021] [2025-02-06 13:43:19,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:19,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:19,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 13:43:19,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 13:43:19,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:19,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 13:43:19,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:19,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297996021] [2025-02-06 13:43:19,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297996021] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:43:19,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:43:19,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 13:43:19,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104549936] [2025-02-06 13:43:19,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:43:19,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:43:19,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:19,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:43:19,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:43:19,520 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-02-06 13:43:19,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:19,542 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2025-02-06 13:43:19,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:43:19,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-02-06 13:43:19,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:19,543 INFO L225 Difference]: With dead ends: 43 [2025-02-06 13:43:19,543 INFO L226 Difference]: Without dead ends: 31 [2025-02-06 13:43:19,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:43:19,544 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:19,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:43:19,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-02-06 13:43:19,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2025-02-06 13:43:19,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.25) internal successors, (35), 30 states have internal predecessors, (35), 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) [2025-02-06 13:43:19,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2025-02-06 13:43:19,547 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 13 [2025-02-06 13:43:19,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:19,548 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2025-02-06 13:43:19,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-02-06 13:43:19,548 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2025-02-06 13:43:19,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-06 13:43:19,548 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:19,548 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:43:19,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 13:43:19,548 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:43:19,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:19,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1957253779, now seen corresponding path program 1 times [2025-02-06 13:43:19,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:19,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522927442] [2025-02-06 13:43:19,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:19,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:19,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 13:43:19,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 13:43:19,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:19,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:19,643 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 13:43:19,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:19,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522927442] [2025-02-06 13:43:19,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522927442] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:43:19,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700133222] [2025-02-06 13:43:19,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:19,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:19,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:43:19,646 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:43:19,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 13:43:19,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 13:43:19,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 13:43:19,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:19,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:19,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 13:43:19,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:43:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:43:19,859 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:43:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:43:19,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700133222] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:43:19,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:43:19,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 15 [2025-02-06 13:43:19,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546329592] [2025-02-06 13:43:19,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:43:19,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 13:43:19,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:19,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 13:43:19,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2025-02-06 13:43:19,963 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 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) [2025-02-06 13:43:20,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:20,097 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2025-02-06 13:43:20,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 13:43:20,099 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2025-02-06 13:43:20,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:20,099 INFO L225 Difference]: With dead ends: 43 [2025-02-06 13:43:20,099 INFO L226 Difference]: Without dead ends: 30 [2025-02-06 13:43:20,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2025-02-06 13:43:20,100 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:20,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:43:20,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-02-06 13:43:20,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2025-02-06 13:43:20,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 29 states have internal predecessors, (33), 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) [2025-02-06 13:43:20,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2025-02-06 13:43:20,107 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 16 [2025-02-06 13:43:20,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:20,107 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2025-02-06 13:43:20,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 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) [2025-02-06 13:43:20,108 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2025-02-06 13:43:20,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-06 13:43:20,108 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:20,108 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2025-02-06 13:43:20,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 13:43:20,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:20,309 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:43:20,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:20,309 INFO L85 PathProgramCache]: Analyzing trace with hash 544633562, now seen corresponding path program 2 times [2025-02-06 13:43:20,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:20,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323694889] [2025-02-06 13:43:20,309 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:43:20,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:20,321 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-06 13:43:20,323 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 18 statements. [2025-02-06 13:43:20,323 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 13:43:20,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:20,339 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 13:43:20,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:20,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323694889] [2025-02-06 13:43:20,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323694889] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:43:20,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423610797] [2025-02-06 13:43:20,340 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:43:20,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:20,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:43:20,345 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:43:20,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 13:43:20,377 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-06 13:43:20,383 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 18 statements. [2025-02-06 13:43:20,383 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 13:43:20,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:20,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 13:43:20,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:43:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 13:43:20,412 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:43:20,446 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 13:43:20,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423610797] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:43:20,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:43:20,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-02-06 13:43:20,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112604262] [2025-02-06 13:43:20,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:43:20,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 13:43:20,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:20,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 13:43:20,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 13:43:20,448 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2025-02-06 13:43:20,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:20,465 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2025-02-06 13:43:20,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:43:20,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2025-02-06 13:43:20,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:20,466 INFO L225 Difference]: With dead ends: 30 [2025-02-06 13:43:20,466 INFO L226 Difference]: Without dead ends: 29 [2025-02-06 13:43:20,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:43:20,467 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:20,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 15 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:43:20,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2025-02-06 13:43:20,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2025-02-06 13:43:20,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 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) [2025-02-06 13:43:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2025-02-06 13:43:20,473 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 18 [2025-02-06 13:43:20,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:20,473 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2025-02-06 13:43:20,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2025-02-06 13:43:20,473 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2025-02-06 13:43:20,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-06 13:43:20,474 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:20,474 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 13:43:20,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 13:43:20,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-06 13:43:20,674 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)] === [2025-02-06 13:43:20,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:20,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1156051177, now seen corresponding path program 1 times [2025-02-06 13:43:20,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:20,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049684485] [2025-02-06 13:43:20,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:20,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:20,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 13:43:20,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 13:43:20,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:20,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:20,746 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 13:43:20,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:20,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049684485] [2025-02-06 13:43:20,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049684485] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:43:20,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917416431] [2025-02-06 13:43:20,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:20,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:20,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:43:20,749 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:43:20,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 13:43:20,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 13:43:20,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 13:43:20,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:20,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:20,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:43:20,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:43:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 13:43:20,824 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:43:20,863 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 13:43:20,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917416431] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:43:20,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:43:20,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-06 13:43:20,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844647103] [2025-02-06 13:43:20,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:43:20,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 13:43:20,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:20,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 13:43:20,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 13:43:20,867 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 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) [2025-02-06 13:43:20,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:20,906 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2025-02-06 13:43:20,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 13:43:20,906 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2025-02-06 13:43:20,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:20,907 INFO L225 Difference]: With dead ends: 37 [2025-02-06 13:43:20,907 INFO L226 Difference]: Without dead ends: 36 [2025-02-06 13:43:20,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 13:43:20,907 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:20,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:43:20,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-02-06 13:43:20,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2025-02-06 13:43:20,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 35 states have internal predecessors, (37), 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) [2025-02-06 13:43:20,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2025-02-06 13:43:20,913 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 20 [2025-02-06 13:43:20,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:20,913 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2025-02-06 13:43:20,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 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) [2025-02-06 13:43:20,915 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2025-02-06 13:43:20,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-02-06 13:43:20,915 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:20,915 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 13:43:20,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 13:43:21,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:21,119 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)] === [2025-02-06 13:43:21,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:21,119 INFO L85 PathProgramCache]: Analyzing trace with hash -86746351, now seen corresponding path program 2 times [2025-02-06 13:43:21,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:21,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570934765] [2025-02-06 13:43:21,119 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:43:21,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:21,126 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-02-06 13:43:21,128 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 9 of 35 statements. [2025-02-06 13:43:21,128 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 13:43:21,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:21,172 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-02-06 13:43:21,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:21,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570934765] [2025-02-06 13:43:21,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570934765] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:43:21,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820478786] [2025-02-06 13:43:21,173 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:43:21,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:21,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:43:21,175 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:43:21,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 13:43:21,212 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-02-06 13:43:21,217 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 9 of 35 statements. [2025-02-06 13:43:21,218 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 13:43:21,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:21,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 13:43:21,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:43:21,262 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-02-06 13:43:21,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:43:21,315 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-02-06 13:43:21,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820478786] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:43:21,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:43:21,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-06 13:43:21,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625012869] [2025-02-06 13:43:21,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:43:21,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 13:43:21,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:21,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 13:43:21,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:43:21,316 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 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) [2025-02-06 13:43:21,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:21,358 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2025-02-06 13:43:21,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 13:43:21,358 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2025-02-06 13:43:21,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:21,358 INFO L225 Difference]: With dead ends: 36 [2025-02-06 13:43:21,358 INFO L226 Difference]: Without dead ends: 0 [2025-02-06 13:43:21,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2025-02-06 13:43:21,359 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:21,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:43:21,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-06 13:43:21,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-06 13:43:21,359 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) [2025-02-06 13:43:21,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 13:43:21,360 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2025-02-06 13:43:21,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:21,360 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 13:43:21,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 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) [2025-02-06 13:43:21,360 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-06 13:43:21,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-06 13:43:21,366 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-02-06 13:43:21,366 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-02-06 13:43:21,366 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-02-06 13:43:21,366 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-02-06 13:43:21,372 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 [2025-02-06 13:43:21,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-02-06 13:43:21,569 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2025-02-06 13:43:21,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-06 13:43:21,631 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 13:43:21,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 01:43:21 BoogieIcfgContainer [2025-02-06 13:43:21,643 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 13:43:21,644 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 13:43:21,644 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 13:43:21,644 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 13:43:21,644 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:43:17" (3/4) ... [2025-02-06 13:43:21,646 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 13:43:21,652 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-06 13:43:21,652 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-06 13:43:21,652 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 13:43:21,652 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 13:43:21,706 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 13:43:21,706 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 13:43:21,706 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 13:43:21,706 INFO L158 Benchmark]: Toolchain (without parser) took 4462.08ms. Allocated memory is still 167.8MB. Free memory was 132.3MB in the beginning and 107.2MB in the end (delta: 25.1MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2025-02-06 13:43:21,707 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:43:21,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.90ms. Allocated memory is still 167.8MB. Free memory was 131.9MB in the beginning and 121.1MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 13:43:21,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.37ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 120.2MB in the end (delta: 906.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:43:21,708 INFO L158 Benchmark]: Boogie Preprocessor took 30.98ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 119.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:43:21,708 INFO L158 Benchmark]: IcfgBuilder took 247.85ms. Allocated memory is still 167.8MB. Free memory was 119.0MB in the beginning and 107.4MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 13:43:21,709 INFO L158 Benchmark]: TraceAbstraction took 3879.53ms. Allocated memory is still 167.8MB. Free memory was 106.6MB in the beginning and 113.7MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:43:21,709 INFO L158 Benchmark]: Witness Printer took 62.13ms. Allocated memory is still 167.8MB. Free memory was 113.7MB in the beginning and 107.2MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 13:43:21,711 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.90ms. Allocated memory is still 167.8MB. Free memory was 131.9MB in the beginning and 121.1MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.37ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 120.2MB in the end (delta: 906.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.98ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 119.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 247.85ms. Allocated memory is still 167.8MB. Free memory was 119.0MB in the beginning and 107.4MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3879.53ms. Allocated memory is still 167.8MB. Free memory was 106.6MB in the beginning and 113.7MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.13ms. Allocated memory is still 167.8MB. Free memory was 113.7MB in the beginning and 107.2MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: 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 1 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 304 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 213 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 345 IncrementalHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 91 mSDtfsCounter, 345 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 173 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=8, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 238 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 316 ConstructedInterpolants, 0 QuantifiedInterpolants, 826 SizeOfPredicates, 7 NumberOfNonLiveVariables, 363 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 20 InterpolantComputations, 4 PerfectInterpolantSequences, 213/317 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: 30]: Location Invariant Derived location invariant: (((i == 0) && (n <= 1000)) || ((1 <= i) && (n <= 1000))) - InvariantResult [Line: 31]: Location Invariant Derived location invariant: ((((i == 0) && (n <= 1000)) || ((1 <= i) && (n <= 1))) || (((i <= 2147483646) && (1 <= i)) && (n <= 1000))) RESULT: Ultimate proved your program to be correct! [2025-02-06 13:43:21,723 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