./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/memsafety-ext2/length_test03-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/memsafety-ext2/length_test03-2.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 8d477dcc38abb71f88978d460e8393ef9ba09f24c134f3de362c4df2a3599c9a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 09:07:02,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 09:07:02,109 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 09:07:02,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 09:07:02,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 09:07:02,133 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 09:07:02,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 09:07:02,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 09:07:02,133 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 09:07:02,133 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 09:07:02,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 09:07:02,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 09:07:02,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 09:07:02,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 09:07:02,134 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 09:07:02,138 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 09:07:02,138 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 09:07:02,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 09:07:02,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 09:07:02,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 09:07:02,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 09:07:02,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 09:07:02,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 09:07:02,139 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 09:07:02,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 09:07:02,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 09:07:02,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 09:07:02,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 09:07:02,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 09:07:02,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 09:07:02,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 09:07:02,139 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 -> 8d477dcc38abb71f88978d460e8393ef9ba09f24c134f3de362c4df2a3599c9a [2025-02-08 09:07:02,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 09:07:02,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 09:07:02,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 09:07:02,331 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 09:07:02,332 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 09:07:02,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext2/length_test03-2.i [2025-02-08 09:07:03,463 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/706c99788/49563298c2a54742a9cfc97c8e479d2d/FLAG3ba8a4df8 [2025-02-08 09:07:03,724 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 09:07:03,725 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/memsafety-ext2/length_test03-2.i [2025-02-08 09:07:03,742 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/706c99788/49563298c2a54742a9cfc97c8e479d2d/FLAG3ba8a4df8 [2025-02-08 09:07:04,033 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/706c99788/49563298c2a54742a9cfc97c8e479d2d [2025-02-08 09:07:04,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 09:07:04,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 09:07:04,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 09:07:04,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 09:07:04,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 09:07:04,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbda1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04, skipping insertion in model container [2025-02-08 09:07:04,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,061 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 09:07:04,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 09:07:04,292 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 09:07:04,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 09:07:04,349 INFO L204 MainTranslator]: Completed translation [2025-02-08 09:07:04,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04 WrapperNode [2025-02-08 09:07:04,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 09:07:04,350 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 09:07:04,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 09:07:04,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 09:07:04,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,382 INFO L138 Inliner]: procedures = 123, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 83 [2025-02-08 09:07:04,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 09:07:04,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 09:07:04,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 09:07:04,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 09:07:04,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,390 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,403 INFO L175 MemorySlicer]: Split 25 memory accesses to 3 slices as follows [2, 10, 13]. 52 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 13 writes are split as follows [0, 6, 7]. [2025-02-08 09:07:04,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,410 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 09:07:04,422 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 09:07:04,422 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 09:07:04,422 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 09:07:04,422 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (1/1) ... [2025-02-08 09:07:04,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 09:07:04,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:07:04,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 09:07:04,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 09:07:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 09:07:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 09:07:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 09:07:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 09:07:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 09:07:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 09:07:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 09:07:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 09:07:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 09:07:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 09:07:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 09:07:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 09:07:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 09:07:04,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 09:07:04,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 09:07:04,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 09:07:04,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 09:07:04,478 INFO L130 BoogieDeclarations]: Found specification of procedure append [2025-02-08 09:07:04,478 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2025-02-08 09:07:04,569 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 09:07:04,571 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 09:07:04,738 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2025-02-08 09:07:04,738 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 09:07:04,745 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 09:07:04,745 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 09:07:04,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:07:04 BoogieIcfgContainer [2025-02-08 09:07:04,746 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 09:07:04,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 09:07:04,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 09:07:04,751 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 09:07:04,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 09:07:04" (1/3) ... [2025-02-08 09:07:04,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a272c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 09:07:04, skipping insertion in model container [2025-02-08 09:07:04,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:07:04" (2/3) ... [2025-02-08 09:07:04,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a272c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 09:07:04, skipping insertion in model container [2025-02-08 09:07:04,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:07:04" (3/3) ... [2025-02-08 09:07:04,755 INFO L128 eAbstractionObserver]: Analyzing ICFG length_test03-2.i [2025-02-08 09:07:04,765 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 09:07:04,767 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG length_test03-2.i that has 2 procedures, 26 locations, 1 initial locations, 4 loop locations, and 4 error locations. [2025-02-08 09:07:04,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 09:07:04,816 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;@7ac10d5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 09:07:04,816 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 09:07:04,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 22 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:07:04,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 09:07:04,826 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:04,827 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:04,827 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:07:04,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:04,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1325420429, now seen corresponding path program 1 times [2025-02-08 09:07:04,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:04,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215116120] [2025-02-08 09:07:04,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:04,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:04,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 09:07:04,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 09:07:04,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:04,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:04,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:07:04,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:04,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215116120] [2025-02-08 09:07:04,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215116120] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:07:04,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:07:04,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 09:07:04,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513315444] [2025-02-08 09:07:04,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:07:04,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 09:07:04,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:04,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 09:07:04,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 09:07:04,978 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 22 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:07:04,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:04,987 INFO L93 Difference]: Finished difference Result 47 states and 58 transitions. [2025-02-08 09:07:04,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 09:07:04,989 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-08 09:07:04,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:04,992 INFO L225 Difference]: With dead ends: 47 [2025-02-08 09:07:04,992 INFO L226 Difference]: Without dead ends: 24 [2025-02-08 09:07:04,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 09:07:04,996 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:04,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:07:05,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-02-08 09:07:05,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-02-08 09:07:05,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 20 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:07:05,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2025-02-08 09:07:05,027 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 7 [2025-02-08 09:07:05,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:05,028 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2025-02-08 09:07:05,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:07:05,029 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2025-02-08 09:07:05,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-08 09:07:05,030 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:05,030 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:05,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 09:07:05,031 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)] === [2025-02-08 09:07:05,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:05,031 INFO L85 PathProgramCache]: Analyzing trace with hash -466641518, now seen corresponding path program 1 times [2025-02-08 09:07:05,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:05,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804450276] [2025-02-08 09:07:05,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:05,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:05,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 09:07:05,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 09:07:05,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:05,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:07:05,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:05,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804450276] [2025-02-08 09:07:05,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804450276] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:07:05,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:07:05,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 09:07:05,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254876861] [2025-02-08 09:07:05,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:07:05,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 09:07:05,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:05,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 09:07:05,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 09:07:05,240 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:07:05,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:05,259 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2025-02-08 09:07:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 09:07:05,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2025-02-08 09:07:05,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:05,260 INFO L225 Difference]: With dead ends: 34 [2025-02-08 09:07:05,260 INFO L226 Difference]: Without dead ends: 28 [2025-02-08 09:07:05,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 09:07:05,261 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:05,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 48 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:07:05,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-02-08 09:07:05,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2025-02-08 09:07:05,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.5) internal successors, (27), 21 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:07:05,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2025-02-08 09:07:05,265 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 15 [2025-02-08 09:07:05,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:05,265 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2025-02-08 09:07:05,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:07:05,265 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2025-02-08 09:07:05,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-08 09:07:05,266 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:05,266 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:05,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 09:07:05,266 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)] === [2025-02-08 09:07:05,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:05,266 INFO L85 PathProgramCache]: Analyzing trace with hash -782930282, now seen corresponding path program 1 times [2025-02-08 09:07:05,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:05,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899042998] [2025-02-08 09:07:05,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:05,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:05,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 09:07:05,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 09:07:05,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:05,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:05,444 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 09:07:05,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:05,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899042998] [2025-02-08 09:07:05,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899042998] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:07:05,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:07:05,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 09:07:05,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246955067] [2025-02-08 09:07:05,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:07:05,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 09:07:05,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:05,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 09:07:05,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 09:07:05,445 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:07:05,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:05,473 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2025-02-08 09:07:05,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 09:07:05,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2025-02-08 09:07:05,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:05,474 INFO L225 Difference]: With dead ends: 32 [2025-02-08 09:07:05,474 INFO L226 Difference]: Without dead ends: 30 [2025-02-08 09:07:05,475 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 [2025-02-08 09:07:05,475 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:05,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 67 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:07:05,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-02-08 09:07:05,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2025-02-08 09:07:05,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 24 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:07:05,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2025-02-08 09:07:05,478 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 20 [2025-02-08 09:07:05,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:05,478 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2025-02-08 09:07:05,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:07:05,479 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2025-02-08 09:07:05,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-08 09:07:05,479 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:05,479 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:05,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 09:07:05,479 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:07:05,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:05,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1873015857, now seen corresponding path program 1 times [2025-02-08 09:07:05,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:05,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952405095] [2025-02-08 09:07:05,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:05,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:05,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 09:07:05,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 09:07:05,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:05,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 09:07:05,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:05,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952405095] [2025-02-08 09:07:05,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952405095] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:07:05,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657420826] [2025-02-08 09:07:05,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:05,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:05,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:07:05,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:07:05,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 09:07:05,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 09:07:05,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 09:07:05,745 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:05,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:05,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 09:07:05,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:07:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 09:07:05,798 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:07:05,866 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 09:07:05,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657420826] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:07:05,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:07:05,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-08 09:07:05,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525441833] [2025-02-08 09:07:05,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:07:05,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 09:07:05,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:05,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 09:07:05,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-08 09:07:05,867 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-08 09:07:05,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:05,930 INFO L93 Difference]: Finished difference Result 43 states and 55 transitions. [2025-02-08 09:07:05,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 09:07:05,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 25 [2025-02-08 09:07:05,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:05,931 INFO L225 Difference]: With dead ends: 43 [2025-02-08 09:07:05,931 INFO L226 Difference]: Without dead ends: 36 [2025-02-08 09:07:05,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-08 09:07:05,931 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:05,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 162 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:07:05,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-02-08 09:07:05,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2025-02-08 09:07:05,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 29 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-08 09:07:05,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2025-02-08 09:07:05,935 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 25 [2025-02-08 09:07:05,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:05,935 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2025-02-08 09:07:05,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-08 09:07:05,935 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2025-02-08 09:07:05,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-02-08 09:07:05,935 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:05,936 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:05,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 09:07:06,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:06,140 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:07:06,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:06,141 INFO L85 PathProgramCache]: Analyzing trace with hash 511271767, now seen corresponding path program 1 times [2025-02-08 09:07:06,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:06,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764773571] [2025-02-08 09:07:06,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:06,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:06,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 09:07:06,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 09:07:06,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:06,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:06,616 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 09:07:06,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:06,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764773571] [2025-02-08 09:07:06,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764773571] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:07:06,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061959426] [2025-02-08 09:07:06,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:06,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:06,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:07:06,619 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:07:06,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 09:07:06,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 09:07:06,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 09:07:06,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:06,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:06,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 09:07:06,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:07:06,794 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-08 09:07:06,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 09:07:06,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061959426] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:07:06,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 09:07:06,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2025-02-08 09:07:06,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277747231] [2025-02-08 09:07:06,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:07:06,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 09:07:06,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:06,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 09:07:06,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-08 09:07:06,796 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 09:07:06,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:06,829 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2025-02-08 09:07:06,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 09:07:06,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2025-02-08 09:07:06,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:06,830 INFO L225 Difference]: With dead ends: 36 [2025-02-08 09:07:06,831 INFO L226 Difference]: Without dead ends: 35 [2025-02-08 09:07:06,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-08 09:07:06,831 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:06,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:07:06,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-02-08 09:07:06,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2025-02-08 09:07:06,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 28 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-08 09:07:06,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2025-02-08 09:07:06,838 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 30 [2025-02-08 09:07:06,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:06,838 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2025-02-08 09:07:06,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 09:07:06,838 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2025-02-08 09:07:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-02-08 09:07:06,839 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:06,839 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:06,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 09:07:07,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:07,040 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:07:07,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:07,040 INFO L85 PathProgramCache]: Analyzing trace with hash -29605869, now seen corresponding path program 1 times [2025-02-08 09:07:07,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:07,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532995139] [2025-02-08 09:07:07,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:07,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:07,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-02-08 09:07:07,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-02-08 09:07:07,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:07,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:07,587 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-08 09:07:07,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:07,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532995139] [2025-02-08 09:07:07,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532995139] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:07:07,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827091725] [2025-02-08 09:07:07,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:07,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:07,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:07:07,589 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:07:07,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 09:07:07,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-02-08 09:07:07,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-02-08 09:07:07,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:07,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:07,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 09:07:07,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:07:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-08 09:07:07,857 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:07:07,965 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-08 09:07:07,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827091725] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:07:07,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:07:07,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2025-02-08 09:07:07,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508404589] [2025-02-08 09:07:07,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:07:07,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-08 09:07:07,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:07,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-08 09:07:07,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2025-02-08 09:07:07,969 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 21 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 9 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-02-08 09:07:08,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:08,457 INFO L93 Difference]: Finished difference Result 90 states and 127 transitions. [2025-02-08 09:07:08,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-02-08 09:07:08,458 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 9 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 41 [2025-02-08 09:07:08,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:08,462 INFO L225 Difference]: With dead ends: 90 [2025-02-08 09:07:08,462 INFO L226 Difference]: Without dead ends: 69 [2025-02-08 09:07:08,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=1007, Unknown=0, NotChecked=0, Total=1190 [2025-02-08 09:07:08,463 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 9 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:08,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 178 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 09:07:08,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2025-02-08 09:07:08,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 54. [2025-02-08 09:07:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.186046511627907) internal successors, (51), 44 states have internal predecessors, (51), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-08 09:07:08,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2025-02-08 09:07:08,479 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 41 [2025-02-08 09:07:08,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:08,479 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 67 transitions. [2025-02-08 09:07:08,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 9 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-02-08 09:07:08,479 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2025-02-08 09:07:08,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-02-08 09:07:08,483 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:08,483 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:08,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 09:07:08,687 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 [2025-02-08 09:07:08,687 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:07:08,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:08,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1618073709, now seen corresponding path program 1 times [2025-02-08 09:07:08,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:08,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626481057] [2025-02-08 09:07:08,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:08,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:08,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 09:07:08,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 09:07:08,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:08,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:08,809 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-02-08 09:07:08,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:08,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626481057] [2025-02-08 09:07:08,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626481057] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:07:08,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:07:08,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 09:07:08,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451339624] [2025-02-08 09:07:08,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:07:08,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 09:07:08,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:08,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 09:07:08,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 09:07:08,810 INFO L87 Difference]: Start difference. First operand 54 states and 67 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:07:08,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:08,848 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2025-02-08 09:07:08,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 09:07:08,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2025-02-08 09:07:08,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:08,851 INFO L225 Difference]: With dead ends: 59 [2025-02-08 09:07:08,851 INFO L226 Difference]: Without dead ends: 57 [2025-02-08 09:07:08,851 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 [2025-02-08 09:07:08,852 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:08,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 61 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:07:08,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2025-02-08 09:07:08,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2025-02-08 09:07:08,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 46 states have (on average 1.173913043478261) internal successors, (54), 47 states have internal predecessors, (54), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-08 09:07:08,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 70 transitions. [2025-02-08 09:07:08,859 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 70 transitions. Word has length 45 [2025-02-08 09:07:08,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:08,862 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 70 transitions. [2025-02-08 09:07:08,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:07:08,862 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions. [2025-02-08 09:07:08,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-02-08 09:07:08,863 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:08,863 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:08,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 09:07:08,864 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:07:08,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:08,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1615873140, now seen corresponding path program 1 times [2025-02-08 09:07:08,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:08,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559223050] [2025-02-08 09:07:08,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:08,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:08,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-08 09:07:08,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-08 09:07:08,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:08,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:09,051 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-02-08 09:07:09,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:09,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559223050] [2025-02-08 09:07:09,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559223050] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:07:09,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44635016] [2025-02-08 09:07:09,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:09,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:09,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:07:09,054 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:07:09,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 09:07:09,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-08 09:07:09,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-08 09:07:09,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:09,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:09,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 09:07:09,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:07:09,274 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-02-08 09:07:09,275 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:07:09,359 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-02-08 09:07:09,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44635016] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:07:09,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:07:09,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2025-02-08 09:07:09,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305237620] [2025-02-08 09:07:09,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:07:09,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 09:07:09,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:09,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 09:07:09,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2025-02-08 09:07:09,360 INFO L87 Difference]: Start difference. First operand 57 states and 70 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 09:07:09,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:09,435 INFO L93 Difference]: Finished difference Result 96 states and 125 transitions. [2025-02-08 09:07:09,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 09:07:09,435 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 48 [2025-02-08 09:07:09,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:09,436 INFO L225 Difference]: With dead ends: 96 [2025-02-08 09:07:09,436 INFO L226 Difference]: Without dead ends: 87 [2025-02-08 09:07:09,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 87 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2025-02-08 09:07:09,436 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:09,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 140 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:07:09,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2025-02-08 09:07:09,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2025-02-08 09:07:09,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 70 states have (on average 1.1142857142857143) internal successors, (78), 71 states have internal predecessors, (78), 12 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (19), 13 states have call predecessors, (19), 12 states have call successors, (19) [2025-02-08 09:07:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 109 transitions. [2025-02-08 09:07:09,443 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 109 transitions. Word has length 48 [2025-02-08 09:07:09,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:09,443 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 109 transitions. [2025-02-08 09:07:09,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 09:07:09,443 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 109 transitions. [2025-02-08 09:07:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-02-08 09:07:09,444 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:09,444 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:09,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 09:07:09,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-08 09:07:09,645 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:07:09,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:09,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1447473894, now seen corresponding path program 2 times [2025-02-08 09:07:09,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:09,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250293805] [2025-02-08 09:07:09,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:07:09,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:09,679 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-02-08 09:07:09,698 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 09:07:09,698 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:07:09,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-02-08 09:07:09,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:09,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250293805] [2025-02-08 09:07:09,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250293805] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:07:09,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919237090] [2025-02-08 09:07:09,835 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:07:09,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:09,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:07:09,837 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:07:09,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 09:07:09,986 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-02-08 09:07:10,209 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 09:07:10,209 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:07:10,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:10,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 09:07:10,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:07:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-02-08 09:07:10,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 09:07:10,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919237090] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:07:10,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 09:07:10,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-02-08 09:07:10,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054516110] [2025-02-08 09:07:10,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:07:10,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 09:07:10,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:10,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 09:07:10,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-02-08 09:07:10,250 INFO L87 Difference]: Start difference. First operand 87 states and 109 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:07:10,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:10,282 INFO L93 Difference]: Finished difference Result 87 states and 109 transitions. [2025-02-08 09:07:10,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 09:07:10,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2025-02-08 09:07:10,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:10,283 INFO L225 Difference]: With dead ends: 87 [2025-02-08 09:07:10,283 INFO L226 Difference]: Without dead ends: 86 [2025-02-08 09:07:10,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-02-08 09:07:10,285 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:10,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 77 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:07:10,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2025-02-08 09:07:10,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2025-02-08 09:07:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.1) internal successors, (77), 70 states have internal predecessors, (77), 12 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (19), 13 states have call predecessors, (19), 12 states have call successors, (19) [2025-02-08 09:07:10,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 108 transitions. [2025-02-08 09:07:10,292 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 108 transitions. Word has length 78 [2025-02-08 09:07:10,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:10,292 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 108 transitions. [2025-02-08 09:07:10,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:07:10,292 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 108 transitions. [2025-02-08 09:07:10,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-02-08 09:07:10,293 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:07:10,293 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:10,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 09:07:10,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:07:10,494 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:07:10,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:07:10,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1922017783, now seen corresponding path program 1 times [2025-02-08 09:07:10,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:07:10,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839885321] [2025-02-08 09:07:10,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:07:10,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:07:10,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-08 09:07:10,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-08 09:07:10,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:07:10,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:07:10,616 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-02-08 09:07:10,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:07:10,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839885321] [2025-02-08 09:07:10,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839885321] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:07:10,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:07:10,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 09:07:10,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951559189] [2025-02-08 09:07:10,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:07:10,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 09:07:10,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:07:10,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 09:07:10,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 09:07:10,617 INFO L87 Difference]: Start difference. First operand 86 states and 108 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:07:10,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:07:10,630 INFO L93 Difference]: Finished difference Result 86 states and 108 transitions. [2025-02-08 09:07:10,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 09:07:10,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 79 [2025-02-08 09:07:10,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:07:10,631 INFO L225 Difference]: With dead ends: 86 [2025-02-08 09:07:10,631 INFO L226 Difference]: Without dead ends: 0 [2025-02-08 09:07:10,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 09:07:10,631 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:07:10,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:07:10,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-08 09:07:10,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-08 09:07:10,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:07:10,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-08 09:07:10,632 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2025-02-08 09:07:10,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:07:10,632 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 09:07:10,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:07:10,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-08 09:07:10,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-08 09:07:10,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-02-08 09:07:10,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-02-08 09:07:10,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-02-08 09:07:10,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-02-08 09:07:10,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 09:07:10,638 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:07:10,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-08 09:07:10,764 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 09:07:10,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 09:07:10 BoogieIcfgContainer [2025-02-08 09:07:10,774 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 09:07:10,774 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 09:07:10,774 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 09:07:10,774 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 09:07:10,775 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:07:04" (3/4) ... [2025-02-08 09:07:10,776 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 09:07:10,780 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure append [2025-02-08 09:07:10,784 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-02-08 09:07:10,784 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-08 09:07:10,784 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 09:07:10,784 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 09:07:10,847 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 09:07:10,847 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 09:07:10,847 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 09:07:10,848 INFO L158 Benchmark]: Toolchain (without parser) took 6810.57ms. Allocated memory was 167.8MB in the beginning and 209.7MB in the end (delta: 41.9MB). Free memory was 132.5MB in the beginning and 120.5MB in the end (delta: 12.0MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2025-02-08 09:07:10,848 INFO L158 Benchmark]: CDTParser took 1.00ms. Allocated memory is still 218.1MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:07:10,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.57ms. Allocated memory is still 167.8MB. Free memory was 132.1MB in the beginning and 114.9MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 09:07:10,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.60ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 113.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:07:10,849 INFO L158 Benchmark]: Boogie Preprocessor took 33.45ms. Allocated memory is still 167.8MB. Free memory was 113.2MB in the beginning and 111.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:07:10,849 INFO L158 Benchmark]: IcfgBuilder took 324.48ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 94.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 09:07:10,849 INFO L158 Benchmark]: TraceAbstraction took 6025.86ms. Allocated memory was 167.8MB in the beginning and 209.7MB in the end (delta: 41.9MB). Free memory was 93.9MB in the beginning and 126.5MB in the end (delta: -32.6MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2025-02-08 09:07:10,850 INFO L158 Benchmark]: Witness Printer took 72.69ms. Allocated memory is still 209.7MB. Free memory was 126.5MB in the beginning and 120.5MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 09:07:10,851 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00ms. Allocated memory is still 218.1MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.57ms. Allocated memory is still 167.8MB. Free memory was 132.1MB in the beginning and 114.9MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.60ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 113.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.45ms. Allocated memory is still 167.8MB. Free memory was 113.2MB in the beginning and 111.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 324.48ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 94.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6025.86ms. Allocated memory was 167.8MB in the beginning and 209.7MB in the end (delta: 41.9MB). Free memory was 93.9MB in the beginning and 126.5MB in the end (delta: -32.6MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Witness Printer took 72.69ms. Allocated memory is still 209.7MB. Free memory was 126.5MB in the beginning and 120.5MB in the end (delta: 6.0MB). 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: 591]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 591]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 578]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 578]: 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 2 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 10, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 871 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 635 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 500 IncrementalHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 236 mSDtfsCounter, 500 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 397 GetRequests, 317 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=8, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 21 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 610 NumberOfCodeBlocks, 610 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 706 ConstructedInterpolants, 0 QuantifiedInterpolants, 1194 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2804 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 853/959 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: 591]: Location Invariant Derived location invariant: (0 < (2147483649 + c)) - InvariantResult [Line: 578]: Location Invariant Derived location invariant: ((c <= 2147483645) && (0 <= (c + 2147483648))) RESULT: Ultimate proved your program to be correct! [2025-02-08 09:07:10,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE