./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound100.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 f26bb7c01ef96852e13a34034142a6eda53bd301e224804a84caad37f299321b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 09:23:58,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 09:23:58,790 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 09:23:58,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 09:23:58,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 09:23:58,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 09:23:58,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 09:23:58,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 09:23:58,809 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 09:23:58,809 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 09:23:58,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 09:23:58,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 09:23:58,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 09:23:58,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 09:23:58,810 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 09:23:58,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 09:23:58,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 09:23:58,810 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 09:23:58,810 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 09:23:58,810 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 09:23:58,810 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 09:23:58,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 09:23:58,811 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 09:23:58,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 09:23:58,811 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 09:23:58,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 09:23:58,812 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 09:23:58,812 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 09:23:58,812 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 09:23:58,812 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 09:23:58,812 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 -> f26bb7c01ef96852e13a34034142a6eda53bd301e224804a84caad37f299321b [2025-02-08 09:23:59,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 09:23:59,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 09:23:59,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 09:23:59,053 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 09:23:59,053 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 09:23:59,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound100.i [2025-02-08 09:24:00,300 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d92b1a5ae/4bd14b326ca04245b7abe76451634452/FLAG1c2563f8f [2025-02-08 09:24:00,538 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 09:24:00,539 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound100.i [2025-02-08 09:24:00,547 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d92b1a5ae/4bd14b326ca04245b7abe76451634452/FLAG1c2563f8f [2025-02-08 09:24:00,564 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d92b1a5ae/4bd14b326ca04245b7abe76451634452 [2025-02-08 09:24:00,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 09:24:00,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 09:24:00,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 09:24:00,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 09:24:00,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 09:24:00,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d319fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00, skipping insertion in model container [2025-02-08 09:24:00,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,595 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 09:24:00,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 09:24:00,713 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 09:24:00,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 09:24:00,737 INFO L204 MainTranslator]: Completed translation [2025-02-08 09:24:00,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00 WrapperNode [2025-02-08 09:24:00,738 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 09:24:00,739 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 09:24:00,739 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 09:24:00,739 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 09:24:00,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,748 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,761 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2025-02-08 09:24:00,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 09:24:00,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 09:24:00,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 09:24:00,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 09:24:00,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,769 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,778 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 09:24:00,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,780 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,784 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 09:24:00,785 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 09:24:00,785 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 09:24:00,785 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 09:24:00,786 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (1/1) ... [2025-02-08 09:24:00,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 09:24:00,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:00,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 09:24:00,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 09:24:00,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 09:24:00,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 09:24:00,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 09:24:00,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 09:24:00,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 09:24:00,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 09:24:00,890 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 09:24:00,892 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 09:24:01,005 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-02-08 09:24:01,005 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 09:24:01,011 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 09:24:01,011 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 09:24:01,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:24:01 BoogieIcfgContainer [2025-02-08 09:24:01,011 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 09:24:01,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 09:24:01,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 09:24:01,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 09:24:01,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 09:24:00" (1/3) ... [2025-02-08 09:24:01,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311d3dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 09:24:01, skipping insertion in model container [2025-02-08 09:24:01,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:24:00" (2/3) ... [2025-02-08 09:24:01,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311d3dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 09:24:01, skipping insertion in model container [2025-02-08 09:24:01,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:24:01" (3/3) ... [2025-02-08 09:24:01,017 INFO L128 eAbstractionObserver]: Analyzing ICFG divbin2_unwindbound100.i [2025-02-08 09:24:01,027 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 09:24:01,028 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG divbin2_unwindbound100.i that has 2 procedures, 27 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-02-08 09:24:01,059 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 09:24:01,067 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;@29585159, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 09:24:01,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 09:24:01,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 23 states have internal predecessors, (32), 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 09:24:01,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-08 09:24:01,073 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:01,073 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-08 09:24:01,074 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:01,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:01,077 INFO L85 PathProgramCache]: Analyzing trace with hash 58523, now seen corresponding path program 1 times [2025-02-08 09:24:01,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:01,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255017287] [2025-02-08 09:24:01,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:01,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:01,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 09:24:01,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 09:24:01,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:01,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:01,198 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 09:24:01,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:01,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255017287] [2025-02-08 09:24:01,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255017287] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:01,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:24:01,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 09:24:01,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111009797] [2025-02-08 09:24:01,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:01,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 09:24:01,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:01,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 09:24:01,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 09:24:01,224 INFO L87 Difference]: Start difference. First operand has 27 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 23 states have internal predecessors, (32), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:01,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:01,280 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2025-02-08 09:24:01,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 09:24:01,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2025-02-08 09:24:01,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:01,288 INFO L225 Difference]: With dead ends: 50 [2025-02-08 09:24:01,288 INFO L226 Difference]: Without dead ends: 25 [2025-02-08 09:24:01,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 09:24:01,294 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 13 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:01,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 63 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:01,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-02-08 09:24:01,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2025-02-08 09:24:01,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 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 09:24:01,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2025-02-08 09:24:01,323 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 3 [2025-02-08 09:24:01,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:01,324 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2025-02-08 09:24:01,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:01,324 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2025-02-08 09:24:01,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 09:24:01,324 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:01,325 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 09:24:01,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 09:24:01,328 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:01,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:01,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1814206, now seen corresponding path program 1 times [2025-02-08 09:24:01,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:01,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456934148] [2025-02-08 09:24:01,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:01,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:01,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 09:24:01,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 09:24:01,342 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:01,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:01,380 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 09:24:01,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:01,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456934148] [2025-02-08 09:24:01,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456934148] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:01,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:24:01,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 09:24:01,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144329394] [2025-02-08 09:24:01,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:01,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 09:24:01,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:01,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 09:24:01,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 09:24:01,382 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:01,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:01,407 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2025-02-08 09:24:01,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 09:24:01,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-02-08 09:24:01,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:01,408 INFO L225 Difference]: With dead ends: 38 [2025-02-08 09:24:01,408 INFO L226 Difference]: Without dead ends: 24 [2025-02-08 09:24:01,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 09:24:01,409 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:01,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 52 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:01,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-02-08 09:24:01,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-02-08 09:24:01,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 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 09:24:01,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2025-02-08 09:24:01,417 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 4 [2025-02-08 09:24:01,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:01,418 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2025-02-08 09:24:01,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:01,418 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2025-02-08 09:24:01,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 09:24:01,419 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:01,419 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:01,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 09:24:01,419 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:01,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:01,421 INFO L85 PathProgramCache]: Analyzing trace with hash 419813753, now seen corresponding path program 1 times [2025-02-08 09:24:01,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:01,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001559933] [2025-02-08 09:24:01,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:01,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:01,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 09:24:01,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 09:24:01,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:01,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:01,543 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 09:24:01,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:01,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001559933] [2025-02-08 09:24:01,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001559933] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:01,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:24:01,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 09:24:01,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39633256] [2025-02-08 09:24:01,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:01,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 09:24:01,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:01,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 09:24:01,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 09:24:01,545 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:01,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:01,636 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2025-02-08 09:24:01,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 09:24:01,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-08 09:24:01,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:01,636 INFO L225 Difference]: With dead ends: 24 [2025-02-08 09:24:01,636 INFO L226 Difference]: Without dead ends: 23 [2025-02-08 09:24:01,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2025-02-08 09:24:01,637 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 35 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:01,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 31 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:01,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-02-08 09:24:01,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-02-08 09:24:01,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 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 09:24:01,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2025-02-08 09:24:01,644 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 8 [2025-02-08 09:24:01,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:01,645 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2025-02-08 09:24:01,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:01,645 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2025-02-08 09:24:01,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-08 09:24:01,645 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:01,645 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:01,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 09:24:01,646 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:01,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:01,649 INFO L85 PathProgramCache]: Analyzing trace with hash 129324436, now seen corresponding path program 1 times [2025-02-08 09:24:01,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:01,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243499404] [2025-02-08 09:24:01,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:01,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:01,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 09:24:01,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 09:24:01,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:01,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:01,723 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 09:24:01,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:01,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243499404] [2025-02-08 09:24:01,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243499404] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:01,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:24:01,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 09:24:01,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529721400] [2025-02-08 09:24:01,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:01,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 09:24:01,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:01,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 09:24:01,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 09:24:01,724 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:01,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:01,789 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2025-02-08 09:24:01,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 09:24:01,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-02-08 09:24:01,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:01,791 INFO L225 Difference]: With dead ends: 33 [2025-02-08 09:24:01,793 INFO L226 Difference]: Without dead ends: 32 [2025-02-08 09:24:01,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-08 09:24:01,794 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:01,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 67 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:01,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-02-08 09:24:01,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2025-02-08 09:24:01,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 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 09:24:01,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2025-02-08 09:24:01,799 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 9 [2025-02-08 09:24:01,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:01,799 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2025-02-08 09:24:01,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:01,799 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2025-02-08 09:24:01,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-08 09:24:01,799 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:01,800 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2025-02-08 09:24:01,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 09:24:01,800 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:01,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:01,800 INFO L85 PathProgramCache]: Analyzing trace with hash 129395934, now seen corresponding path program 1 times [2025-02-08 09:24:01,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:01,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404806767] [2025-02-08 09:24:01,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:01,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:01,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 09:24:01,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 09:24:01,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:01,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:01,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:24:01,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:01,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404806767] [2025-02-08 09:24:01,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404806767] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:01,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157261485] [2025-02-08 09:24:01,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:01,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:01,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:01,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:01,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 09:24:01,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 09:24:01,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 09:24:01,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:01,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:01,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 09:24:01,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:01,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:24:01,959 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 09:24:01,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157261485] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:01,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 09:24:01,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2025-02-08 09:24:01,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129586813] [2025-02-08 09:24:01,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:01,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 09:24:01,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:01,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 09:24:01,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-08 09:24:01,960 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:01,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:01,990 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2025-02-08 09:24:01,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 09:24:01,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-02-08 09:24:01,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:01,991 INFO L225 Difference]: With dead ends: 31 [2025-02-08 09:24:01,991 INFO L226 Difference]: Without dead ends: 30 [2025-02-08 09:24:01,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-02-08 09:24:01,992 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:01,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 56 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:01,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-02-08 09:24:01,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2025-02-08 09:24:01,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 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 09:24:01,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2025-02-08 09:24:01,995 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 9 [2025-02-08 09:24:01,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:01,995 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2025-02-08 09:24:01,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:01,995 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2025-02-08 09:24:01,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-08 09:24:01,995 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:01,996 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:02,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 09:24:02,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:02,196 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:02,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:02,197 INFO L85 PathProgramCache]: Analyzing trace with hash 987033717, now seen corresponding path program 1 times [2025-02-08 09:24:02,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:02,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049970038] [2025-02-08 09:24:02,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:02,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:02,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 09:24:02,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 09:24:02,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:02,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:02,253 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:24:02,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:02,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049970038] [2025-02-08 09:24:02,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049970038] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:02,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009824141] [2025-02-08 09:24:02,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:02,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:02,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:02,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:02,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 09:24:02,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 09:24:02,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 09:24:02,282 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:02,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:02,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 09:24:02,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:24:02,299 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:24:02,337 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:24:02,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009824141] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:24:02,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:24:02,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-02-08 09:24:02,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120820607] [2025-02-08 09:24:02,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:24:02,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 09:24:02,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:02,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 09:24:02,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-02-08 09:24:02,338 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:02,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:02,431 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2025-02-08 09:24:02,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 09:24:02,431 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-02-08 09:24:02,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:02,432 INFO L225 Difference]: With dead ends: 60 [2025-02-08 09:24:02,432 INFO L226 Difference]: Without dead ends: 48 [2025-02-08 09:24:02,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2025-02-08 09:24:02,433 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:02,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 71 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:02,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2025-02-08 09:24:02,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40. [2025-02-08 09:24:02,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 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 09:24:02,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2025-02-08 09:24:02,438 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 13 [2025-02-08 09:24:02,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:02,438 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2025-02-08 09:24:02,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:02,438 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2025-02-08 09:24:02,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 09:24:02,439 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:02,439 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:02,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 09:24:02,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:02,644 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:02,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:02,645 INFO L85 PathProgramCache]: Analyzing trace with hash 532441972, now seen corresponding path program 1 times [2025-02-08 09:24:02,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:02,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212274275] [2025-02-08 09:24:02,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:02,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:02,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 09:24:02,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 09:24:02,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:02,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:02,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:24:02,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:02,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212274275] [2025-02-08 09:24:02,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212274275] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:02,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072820025] [2025-02-08 09:24:02,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:02,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:02,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:02,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:02,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 09:24:02,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 09:24:02,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 09:24:02,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:02,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:02,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 09:24:02,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:02,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:24:02,819 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:24:02,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:24:02,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072820025] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:24:02,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:24:02,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2025-02-08 09:24:02,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650785663] [2025-02-08 09:24:02,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:24:02,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 09:24:02,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:02,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 09:24:02,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2025-02-08 09:24:02,887 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:03,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:03,095 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2025-02-08 09:24:03,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-08 09:24:03,096 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 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 14 [2025-02-08 09:24:03,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:03,096 INFO L225 Difference]: With dead ends: 69 [2025-02-08 09:24:03,097 INFO L226 Difference]: Without dead ends: 68 [2025-02-08 09:24:03,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2025-02-08 09:24:03,098 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 100 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:03,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 128 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:24:03,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2025-02-08 09:24:03,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2025-02-08 09:24:03,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 55 states have internal predecessors, (64), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 09:24:03,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2025-02-08 09:24:03,128 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 14 [2025-02-08 09:24:03,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:03,128 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2025-02-08 09:24:03,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:03,128 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2025-02-08 09:24:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-02-08 09:24:03,129 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:03,129 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:03,143 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 09:24:03,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:03,330 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:03,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:03,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1664374814, now seen corresponding path program 1 times [2025-02-08 09:24:03,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:03,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709073188] [2025-02-08 09:24:03,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:03,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:03,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 09:24:03,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 09:24:03,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:03,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 09:24:03,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:03,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709073188] [2025-02-08 09:24:03,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709073188] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:03,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847240585] [2025-02-08 09:24:03,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:03,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:03,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:03,566 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:03,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 09:24:03,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 09:24:03,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 09:24:03,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:03,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:03,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 09:24:03,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:03,870 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:24:03,870 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:24:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 09:24:04,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847240585] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:24:04,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:24:04,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2025-02-08 09:24:04,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636629841] [2025-02-08 09:24:04,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:24:04,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-02-08 09:24:04,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:04,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-02-08 09:24:04,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=658, Unknown=0, NotChecked=0, Total=870 [2025-02-08 09:24:04,132 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand has 30 states, 29 states have (on average 3.103448275862069) internal successors, (90), 30 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-08 09:24:04,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:04,714 INFO L93 Difference]: Finished difference Result 215 states and 244 transitions. [2025-02-08 09:24:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-02-08 09:24:04,714 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.103448275862069) internal successors, (90), 30 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 42 [2025-02-08 09:24:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:04,716 INFO L225 Difference]: With dead ends: 215 [2025-02-08 09:24:04,716 INFO L226 Difference]: Without dead ends: 214 [2025-02-08 09:24:04,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=896, Invalid=2296, Unknown=0, NotChecked=0, Total=3192 [2025-02-08 09:24:04,717 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 199 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:04,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 155 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 09:24:04,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2025-02-08 09:24:04,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 161. [2025-02-08 09:24:04,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 136 states have (on average 1.1323529411764706) internal successors, (154), 136 states have internal predecessors, (154), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-08 09:24:04,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 178 transitions. [2025-02-08 09:24:04,745 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 178 transitions. Word has length 42 [2025-02-08 09:24:04,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:04,745 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 178 transitions. [2025-02-08 09:24:04,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.103448275862069) internal successors, (90), 30 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-08 09:24:04,745 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 178 transitions. [2025-02-08 09:24:04,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-08 09:24:04,746 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:04,746 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-02-08 09:24:04,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 09:24:04,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-08 09:24:04,947 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:04,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:04,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1599291733, now seen corresponding path program 1 times [2025-02-08 09:24:04,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:04,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380906753] [2025-02-08 09:24:04,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:04,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:04,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-08 09:24:04,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-08 09:24:04,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:04,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:05,178 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-08 09:24:05,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:05,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380906753] [2025-02-08 09:24:05,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380906753] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:05,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752034780] [2025-02-08 09:24:05,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:05,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:05,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:05,182 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:05,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 09:24:05,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-08 09:24:05,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-08 09:24:05,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:05,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:05,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 09:24:05,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:05,274 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-08 09:24:05,274 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:24:05,404 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-08 09:24:05,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752034780] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:24:05,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:24:05,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 22 [2025-02-08 09:24:05,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065346440] [2025-02-08 09:24:05,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:24:05,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-08 09:24:05,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:05,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-08 09:24:05,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-02-08 09:24:05,408 INFO L87 Difference]: Start difference. First operand 161 states and 178 transitions. Second operand has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:24:05,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:05,697 INFO L93 Difference]: Finished difference Result 241 states and 272 transitions. [2025-02-08 09:24:05,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-02-08 09:24:05,698 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2025-02-08 09:24:05,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:05,699 INFO L225 Difference]: With dead ends: 241 [2025-02-08 09:24:05,699 INFO L226 Difference]: Without dead ends: 215 [2025-02-08 09:24:05,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2025-02-08 09:24:05,701 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 87 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:05,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 132 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:24:05,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2025-02-08 09:24:05,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 191. [2025-02-08 09:24:05,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 166 states have (on average 1.144578313253012) internal successors, (190), 166 states have internal predecessors, (190), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-08 09:24:05,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 214 transitions. [2025-02-08 09:24:05,722 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 214 transitions. Word has length 50 [2025-02-08 09:24:05,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:05,723 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 214 transitions. [2025-02-08 09:24:05,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:24:05,723 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 214 transitions. [2025-02-08 09:24:05,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-08 09:24:05,727 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:05,727 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-02-08 09:24:05,733 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 09:24:05,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:05,931 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:05,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:05,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1121238357, now seen corresponding path program 2 times [2025-02-08 09:24:05,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:05,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863627796] [2025-02-08 09:24:05,932 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:24:05,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:05,951 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 80 statements into 2 equivalence classes. [2025-02-08 09:24:05,957 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 80 of 80 statements. [2025-02-08 09:24:05,957 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:24:05,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:06,031 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2025-02-08 09:24:06,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:06,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863627796] [2025-02-08 09:24:06,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863627796] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:06,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:24:06,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 09:24:06,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114033973] [2025-02-08 09:24:06,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:06,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 09:24:06,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:06,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 09:24:06,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 09:24:06,034 INFO L87 Difference]: Start difference. First operand 191 states and 214 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 09:24:06,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:06,074 INFO L93 Difference]: Finished difference Result 217 states and 242 transitions. [2025-02-08 09:24:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 09:24:06,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 80 [2025-02-08 09:24:06,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:06,076 INFO L225 Difference]: With dead ends: 217 [2025-02-08 09:24:06,076 INFO L226 Difference]: Without dead ends: 191 [2025-02-08 09:24:06,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 09:24:06,076 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:06,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 59 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:06,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2025-02-08 09:24:06,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 147. [2025-02-08 09:24:06,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 122 states have (on average 1.1229508196721312) internal successors, (137), 122 states have internal predecessors, (137), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-08 09:24:06,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 161 transitions. [2025-02-08 09:24:06,084 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 161 transitions. Word has length 80 [2025-02-08 09:24:06,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:06,084 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 161 transitions. [2025-02-08 09:24:06,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 09:24:06,084 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 161 transitions. [2025-02-08 09:24:06,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-02-08 09:24:06,086 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:06,086 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1] [2025-02-08 09:24:06,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 09:24:06,087 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:06,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:06,087 INFO L85 PathProgramCache]: Analyzing trace with hash -678944140, now seen corresponding path program 1 times [2025-02-08 09:24:06,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:06,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322322124] [2025-02-08 09:24:06,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:06,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:06,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-08 09:24:06,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-08 09:24:06,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:06,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:06,767 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-08 09:24:06,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:06,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322322124] [2025-02-08 09:24:06,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322322124] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:24:06,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868018310] [2025-02-08 09:24:06,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:24:06,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:24:06,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:24:06,773 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:24:06,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 09:24:06,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-08 09:24:06,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-08 09:24:06,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:24:06,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:06,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-08 09:24:06,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:24:07,570 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 3 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:24:07,570 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:24:08,484 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 3 proven. 222 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-08 09:24:08,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868018310] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:24:08,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:24:08,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22, 22] total 65 [2025-02-08 09:24:08,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991707363] [2025-02-08 09:24:08,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:24:08,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2025-02-08 09:24:08,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:08,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2025-02-08 09:24:08,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=974, Invalid=3316, Unknown=0, NotChecked=0, Total=4290 [2025-02-08 09:24:08,487 INFO L87 Difference]: Start difference. First operand 147 states and 161 transitions. Second operand has 66 states, 65 states have (on average 3.230769230769231) internal successors, (210), 66 states have internal predecessors, (210), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-02-08 09:24:09,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:09,981 INFO L93 Difference]: Finished difference Result 525 states and 591 transitions. [2025-02-08 09:24:09,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2025-02-08 09:24:09,982 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 3.230769230769231) internal successors, (210), 66 states have internal predecessors, (210), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 102 [2025-02-08 09:24:09,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:09,984 INFO L225 Difference]: With dead ends: 525 [2025-02-08 09:24:09,985 INFO L226 Difference]: Without dead ends: 524 [2025-02-08 09:24:09,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3568 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4405, Invalid=11597, Unknown=0, NotChecked=0, Total=16002 [2025-02-08 09:24:09,992 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 619 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:09,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 266 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 09:24:09,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2025-02-08 09:24:10,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 317. [2025-02-08 09:24:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 262 states have (on average 1.118320610687023) internal successors, (293), 262 states have internal predecessors, (293), 27 states have call successors, (27), 27 states have call predecessors, (27), 27 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-02-08 09:24:10,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 347 transitions. [2025-02-08 09:24:10,016 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 347 transitions. Word has length 102 [2025-02-08 09:24:10,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:10,017 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 347 transitions. [2025-02-08 09:24:10,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 3.230769230769231) internal successors, (210), 66 states have internal predecessors, (210), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-02-08 09:24:10,018 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 347 transitions. [2025-02-08 09:24:10,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-02-08 09:24:10,022 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:24:10,023 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 3, 3, 3, 3, 2, 1, 1, 1] [2025-02-08 09:24:10,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 09:24:10,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-08 09:24:10,227 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 09:24:10,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:24:10,228 INFO L85 PathProgramCache]: Analyzing trace with hash -639042220, now seen corresponding path program 2 times [2025-02-08 09:24:10,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:24:10,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091138016] [2025-02-08 09:24:10,229 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:24:10,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:24:10,247 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 217 statements into 2 equivalence classes. [2025-02-08 09:24:10,290 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 217 of 217 statements. [2025-02-08 09:24:10,291 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:24:10,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:24:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 1630 trivial. 0 not checked. [2025-02-08 09:24:10,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:24:10,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091138016] [2025-02-08 09:24:10,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091138016] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:24:10,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:24:10,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 09:24:10,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184082700] [2025-02-08 09:24:10,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:24:10,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 09:24:10,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:24:10,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 09:24:10,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 09:24:10,484 INFO L87 Difference]: Start difference. First operand 317 states and 347 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 09:24:10,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:24:10,529 INFO L93 Difference]: Finished difference Result 321 states and 351 transitions. [2025-02-08 09:24:10,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 09:24:10,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 217 [2025-02-08 09:24:10,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:24:10,531 INFO L225 Difference]: With dead ends: 321 [2025-02-08 09:24:10,531 INFO L226 Difference]: Without dead ends: 0 [2025-02-08 09:24:10,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 09:24:10,532 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 10 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:24:10,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 45 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:24:10,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-08 09:24:10,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-08 09:24:10,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:24:10,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-08 09:24:10,533 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 217 [2025-02-08 09:24:10,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:24:10,533 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 09:24:10,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 09:24:10,534 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-08 09:24:10,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-08 09:24:10,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-02-08 09:24:10,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-02-08 09:24:10,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-02-08 09:24:10,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-02-08 09:24:10,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 09:24:10,538 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:24:10,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-08 09:24:11,088 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 09:24:11,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 09:24:11 BoogieIcfgContainer [2025-02-08 09:24:11,098 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 09:24:11,098 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 09:24:11,098 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 09:24:11,099 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 09:24:11,099 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:24:01" (3/4) ... [2025-02-08 09:24:11,101 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 09:24:11,105 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-02-08 09:24:11,108 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 09:24:11,108 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 09:24:11,108 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 09:24:11,108 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 09:24:11,165 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 09:24:11,165 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 09:24:11,165 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 09:24:11,166 INFO L158 Benchmark]: Toolchain (without parser) took 10597.71ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 113.6MB in the beginning and 96.3MB in the end (delta: 17.3MB). Peak memory consumption was 101.4MB. Max. memory is 16.1GB. [2025-02-08 09:24:11,166 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:24:11,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.82ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 102.8MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 09:24:11,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.07ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 101.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:24:11,167 INFO L158 Benchmark]: Boogie Preprocessor took 22.24ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 100.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 09:24:11,167 INFO L158 Benchmark]: IcfgBuilder took 226.10ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 88.7MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 09:24:11,168 INFO L158 Benchmark]: TraceAbstraction took 10085.30ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 88.2MB in the beginning and 102.2MB in the end (delta: -13.9MB). Peak memory consumption was 103.5MB. Max. memory is 16.1GB. [2025-02-08 09:24:11,168 INFO L158 Benchmark]: Witness Printer took 66.68ms. Allocated memory is still 226.5MB. Free memory was 102.2MB in the beginning and 96.3MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 09:24:11,169 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 168.82ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 102.8MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.07ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 101.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.24ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 100.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 226.10ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 88.7MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10085.30ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 88.2MB in the beginning and 102.2MB in the end (delta: -13.9MB). Peak memory consumption was 103.5MB. Max. memory is 16.1GB. * Witness Printer took 66.68ms. Allocated memory is still 226.5MB. Free memory was 102.2MB in the beginning and 96.3MB in the end (delta: 5.8MB). 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: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: 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, 27 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 12, TraceHistogramMax: 19, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1122 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1122 mSDsluCounter, 1125 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 938 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 973 IncrementalHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 187 mSDtfsCounter, 973 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 663 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4643 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=317occurred in iteration=11, InterpolantAutomatonStates: 246, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 356 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 781 NumberOfCodeBlocks, 781 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 979 ConstructedInterpolants, 0 QuantifiedInterpolants, 2009 SizeOfPredicates, 42 NumberOfNonLiveVariables, 642 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 23 InterpolantComputations, 7 PerfectInterpolantSequences, 2348/3393 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: 34]: Location Invariant Derived location invariant: (((1 <= counter) && (counter <= 100)) || (counter == 0)) - InvariantResult [Line: 26]: Location Invariant Derived location invariant: (((1 <= counter) && (counter <= 100)) || ((101 <= counter) && (counter <= 2147483645))) RESULT: Ultimate proved your program to be correct! [2025-02-08 09:24:11,190 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