./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-lit/mine2017-ex4.6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-lit/mine2017-ex4.6.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 1fa7c9a8ed8874a508931184bf09b1ee30162cb6ccbf87de6b2ebe54845cfa76 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 13:43:16,667 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 13:43:16,703 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 13:43:16,707 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 13:43:16,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 13:43:16,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 13:43:16,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 13:43:16,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 13:43:16,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 13:43:16,723 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 13:43:16,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 13:43:16,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 13:43:16,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 13:43:16,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 13:43:16,724 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 13:43:16,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 13:43:16,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 13:43:16,724 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 13:43:16,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 13:43:16,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 13:43:16,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 13:43:16,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 13:43:16,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 13:43:16,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 13:43:16,725 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 13:43:16,725 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 13:43:16,725 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 13:43:16,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 13:43:16,725 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 13:43:16,725 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 13:43:16,725 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 13:43:16,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 13:43:16,725 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 13:43:16,725 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 13:43:16,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:43:16,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 13:43:16,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 13:43:16,726 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 13:43:16,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 13:43:16,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 13:43:16,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 13:43:16,726 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 13:43:16,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 13:43:16,726 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 13:43:16,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 13:43:16,727 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 -> 1fa7c9a8ed8874a508931184bf09b1ee30162cb6ccbf87de6b2ebe54845cfa76 [2025-02-06 13:43:16,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 13:43:16,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 13:43:16,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 13:43:16,917 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 13:43:16,918 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 13:43:16,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/mine2017-ex4.6.i [2025-02-06 13:43:18,054 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9a43b9a70/926cb9c82d0846b7a6638e80b43db938/FLAGb04177790 [2025-02-06 13:43:18,312 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 13:43:18,313 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-lit/mine2017-ex4.6.i [2025-02-06 13:43:18,319 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9a43b9a70/926cb9c82d0846b7a6638e80b43db938/FLAGb04177790 [2025-02-06 13:43:18,643 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9a43b9a70/926cb9c82d0846b7a6638e80b43db938 [2025-02-06 13:43:18,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 13:43:18,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 13:43:18,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 13:43:18,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 13:43:18,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 13:43:18,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c952fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18, skipping insertion in model container [2025-02-06 13:43:18,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,660 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 13:43:18,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:43:18,756 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 13:43:18,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:43:18,777 INFO L204 MainTranslator]: Completed translation [2025-02-06 13:43:18,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18 WrapperNode [2025-02-06 13:43:18,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 13:43:18,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 13:43:18,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 13:43:18,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 13:43:18,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,797 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2025-02-06 13:43:18,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 13:43:18,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 13:43:18,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 13:43:18,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 13:43:18,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,806 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,816 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]. [2025-02-06 13:43:18,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,819 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,819 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,819 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,820 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 13:43:18,823 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 13:43:18,823 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 13:43:18,823 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 13:43:18,824 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (1/1) ... [2025-02-06 13:43:18,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:43:18,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:43:18,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 13:43:18,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 13:43:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 13:43:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 13:43:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 13:43:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 13:43:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 13:43:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 13:43:18,912 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 13:43:18,913 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 13:43:18,986 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-02-06 13:43:18,986 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 13:43:18,992 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 13:43:18,992 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 13:43:18,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:43:18 BoogieIcfgContainer [2025-02-06 13:43:18,992 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 13:43:18,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 13:43:18,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 13:43:18,996 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 13:43:18,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 01:43:18" (1/3) ... [2025-02-06 13:43:18,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1620282e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:43:18, skipping insertion in model container [2025-02-06 13:43:18,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:43:18" (2/3) ... [2025-02-06 13:43:18,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1620282e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:43:18, skipping insertion in model container [2025-02-06 13:43:18,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:43:18" (3/3) ... [2025-02-06 13:43:18,998 INFO L128 eAbstractionObserver]: Analyzing ICFG mine2017-ex4.6.i [2025-02-06 13:43:19,007 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 13:43:19,008 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mine2017-ex4.6.i that has 2 procedures, 22 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-06 13:43:19,040 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 13:43:19,047 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;@743daafa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 13:43:19,047 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 13:43:19,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 13:43:19,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-06 13:43:19,053 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:19,054 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:43:19,054 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 13:43:19,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:19,057 INFO L85 PathProgramCache]: Analyzing trace with hash -553952267, now seen corresponding path program 1 times [2025-02-06 13:43:19,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:19,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198808713] [2025-02-06 13:43:19,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:19,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:19,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 13:43:19,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 13:43:19,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:19,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:43:19,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:19,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198808713] [2025-02-06 13:43:19,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198808713] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:43:19,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:43:19,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:43:19,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073008143] [2025-02-06 13:43:19,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:43:19,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:43:19,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:19,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:43:19,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:43:19,197 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (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) [2025-02-06 13:43:19,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:19,231 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2025-02-06 13:43:19,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:43:19,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (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 10 [2025-02-06 13:43:19,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:19,236 INFO L225 Difference]: With dead ends: 46 [2025-02-06 13:43:19,236 INFO L226 Difference]: Without dead ends: 19 [2025-02-06 13:43:19,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:43:19,240 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:19,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 48 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:43:19,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-02-06 13:43:19,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2025-02-06 13:43:19,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 13:43:19,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2025-02-06 13:43:19,262 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2025-02-06 13:43:19,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:19,263 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2025-02-06 13:43:19,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (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) [2025-02-06 13:43:19,263 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2025-02-06 13:43:19,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-06 13:43:19,264 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:19,264 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:43:19,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 13:43:19,265 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 13:43:19,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:19,265 INFO L85 PathProgramCache]: Analyzing trace with hash 7348882, now seen corresponding path program 1 times [2025-02-06 13:43:19,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:19,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627943977] [2025-02-06 13:43:19,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:19,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:19,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 13:43:19,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 13:43:19,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:19,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:19,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:43:19,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:19,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627943977] [2025-02-06 13:43:19,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627943977] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:43:19,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:43:19,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:43:19,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132610346] [2025-02-06 13:43:19,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:43:19,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:43:19,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:19,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:43:19,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:43:19,303 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-02-06 13:43:19,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:19,317 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2025-02-06 13:43:19,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:43:19,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2025-02-06 13:43:19,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:19,317 INFO L225 Difference]: With dead ends: 18 [2025-02-06 13:43:19,317 INFO L226 Difference]: Without dead ends: 17 [2025-02-06 13:43:19,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:43:19,318 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:19,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 23 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:43:19,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-02-06 13:43:19,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-02-06 13:43:19,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 13:43:19,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2025-02-06 13:43:19,322 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2025-02-06 13:43:19,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:19,322 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2025-02-06 13:43:19,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-02-06 13:43:19,322 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2025-02-06 13:43:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-06 13:43:19,322 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:19,323 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:43:19,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 13:43:19,323 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 13:43:19,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:19,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1363832959, now seen corresponding path program 1 times [2025-02-06 13:43:19,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:19,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102594514] [2025-02-06 13:43:19,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:19,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:19,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 13:43:19,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 13:43:19,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:19,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 13:43:19,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:19,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102594514] [2025-02-06 13:43:19,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102594514] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:43:19,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391940464] [2025-02-06 13:43:19,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:43:19,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:19,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:43:19,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:43:19,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 13:43:19,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 13:43:19,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 13:43:19,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:43:19,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:19,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:43:19,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:43:19,486 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 13:43:19,486 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:43:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 13:43:19,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391940464] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:43:19,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:43:19,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-02-06 13:43:19,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786722056] [2025-02-06 13:43:19,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:43:19,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 13:43:19,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:19,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 13:43:19,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-02-06 13:43:19,558 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-02-06 13:43:19,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:19,614 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2025-02-06 13:43:19,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 13:43:19,615 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 24 [2025-02-06 13:43:19,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:19,616 INFO L225 Difference]: With dead ends: 36 [2025-02-06 13:43:19,616 INFO L226 Difference]: Without dead ends: 35 [2025-02-06 13:43:19,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-02-06 13:43:19,616 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:19,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 50 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:43:19,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-02-06 13:43:19,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-02-06 13:43:19,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 13:43:19,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2025-02-06 13:43:19,622 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 24 [2025-02-06 13:43:19,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:19,623 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2025-02-06 13:43:19,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-02-06 13:43:19,623 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2025-02-06 13:43:19,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-06 13:43:19,624 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:19,624 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1] [2025-02-06 13:43:19,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 13:43:19,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:19,825 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 13:43:19,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:19,826 INFO L85 PathProgramCache]: Analyzing trace with hash 303844389, now seen corresponding path program 2 times [2025-02-06 13:43:19,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:19,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966018313] [2025-02-06 13:43:19,827 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:43:19,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:19,837 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 66 statements into 2 equivalence classes. [2025-02-06 13:43:19,868 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 66 of 66 statements. [2025-02-06 13:43:19,868 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:43:19,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:20,249 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-02-06 13:43:20,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:20,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966018313] [2025-02-06 13:43:20,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966018313] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:43:20,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462926628] [2025-02-06 13:43:20,250 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:43:20,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:20,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:43:20,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:43:20,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 13:43:20,285 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 66 statements into 2 equivalence classes. [2025-02-06 13:43:20,304 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 66 of 66 statements. [2025-02-06 13:43:20,305 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:43:20,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:20,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 13:43:20,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:43:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-02-06 13:43:20,382 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:43:20,630 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-02-06 13:43:20,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462926628] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:43:20,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:43:20,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2025-02-06 13:43:20,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731688104] [2025-02-06 13:43:20,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:43:20,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-06 13:43:20,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:20,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-06 13:43:20,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-02-06 13:43:20,632 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand has 22 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 22 states have internal predecessors, (44), 10 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2025-02-06 13:43:20,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:20,735 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2025-02-06 13:43:20,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 13:43:20,735 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 22 states have internal predecessors, (44), 10 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 66 [2025-02-06 13:43:20,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:20,736 INFO L225 Difference]: With dead ends: 72 [2025-02-06 13:43:20,736 INFO L226 Difference]: Without dead ends: 71 [2025-02-06 13:43:20,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-02-06 13:43:20,737 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:20,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 41 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:43:20,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2025-02-06 13:43:20,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-02-06 13:43:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2025-02-06 13:43:20,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions. [2025-02-06 13:43:20,746 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 66 [2025-02-06 13:43:20,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:20,746 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions. [2025-02-06 13:43:20,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 22 states have internal predecessors, (44), 10 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2025-02-06 13:43:20,747 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2025-02-06 13:43:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-02-06 13:43:20,752 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:43:20,753 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1] [2025-02-06 13:43:20,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 13:43:20,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:20,953 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 13:43:20,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:43:20,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1182146963, now seen corresponding path program 3 times [2025-02-06 13:43:20,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:43:20,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959783021] [2025-02-06 13:43:20,955 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:43:20,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:43:20,974 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 150 statements into 16 equivalence classes. [2025-02-06 13:43:20,994 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 30 of 150 statements. [2025-02-06 13:43:20,994 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-06 13:43:20,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:21,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 97 proven. 3 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2025-02-06 13:43:21,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:43:21,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959783021] [2025-02-06 13:43:21,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959783021] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:43:21,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924502259] [2025-02-06 13:43:21,063 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:43:21,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:21,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:43:21,067 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:43:21,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 13:43:21,096 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 150 statements into 16 equivalence classes. [2025-02-06 13:43:21,105 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 30 of 150 statements. [2025-02-06 13:43:21,105 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-06 13:43:21,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:43:21,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 13:43:21,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:43:21,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 97 proven. 3 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2025-02-06 13:43:21,148 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:43:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 97 proven. 3 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2025-02-06 13:43:21,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924502259] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:43:21,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:43:21,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-02-06 13:43:21,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481250968] [2025-02-06 13:43:21,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:43:21,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 13:43:21,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:43:21,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 13:43:21,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-06 13:43:21,257 INFO L87 Difference]: Start difference. First operand 71 states and 91 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-06 13:43:21,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:43:21,283 INFO L93 Difference]: Finished difference Result 71 states and 91 transitions. [2025-02-06 13:43:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 13:43:21,283 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 150 [2025-02-06 13:43:21,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:43:21,284 INFO L225 Difference]: With dead ends: 71 [2025-02-06 13:43:21,284 INFO L226 Difference]: Without dead ends: 0 [2025-02-06 13:43:21,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-06 13:43:21,285 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:43:21,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 29 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:43:21,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-06 13:43:21,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-06 13:43:21,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:43:21,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 13:43:21,286 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2025-02-06 13:43:21,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:43:21,286 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 13:43:21,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-06 13:43:21,286 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-06 13:43:21,286 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-06 13:43:21,289 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-06 13:43:21,289 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-06 13:43:21,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 13:43:21,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:43:21,492 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2025-02-06 13:43:21,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-06 13:43:21,560 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 13:43:21,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 01:43:21 BoogieIcfgContainer [2025-02-06 13:43:21,567 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 13:43:21,568 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 13:43:21,568 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 13:43:21,568 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 13:43:21,568 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:43:18" (3/4) ... [2025-02-06 13:43:21,570 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 13:43:21,573 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-02-06 13:43:21,575 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 13:43:21,575 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-06 13:43:21,575 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 13:43:21,575 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 13:43:21,620 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 13:43:21,620 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 13:43:21,620 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 13:43:21,621 INFO L158 Benchmark]: Toolchain (without parser) took 2974.60ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 102.2MB in the end (delta: 28.7MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2025-02-06 13:43:21,621 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 226.5MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:43:21,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 131.80ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 120.5MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 13:43:21,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.95ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 119.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:43:21,622 INFO L158 Benchmark]: Boogie Preprocessor took 20.97ms. Allocated memory is still 167.8MB. Free memory was 119.4MB in the beginning and 118.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:43:21,622 INFO L158 Benchmark]: IcfgBuilder took 169.65ms. Allocated memory is still 167.8MB. Free memory was 118.4MB in the beginning and 107.9MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 13:43:21,622 INFO L158 Benchmark]: TraceAbstraction took 2573.67ms. Allocated memory is still 167.8MB. Free memory was 107.4MB in the beginning and 107.6MB in the end (delta: -166.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 13:43:21,622 INFO L158 Benchmark]: Witness Printer took 52.80ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 102.2MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 13:43:21,623 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 226.5MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 131.80ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 120.5MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.95ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 119.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.97ms. Allocated memory is still 167.8MB. Free memory was 119.4MB in the beginning and 118.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 169.65ms. Allocated memory is still 167.8MB. Free memory was 118.4MB in the beginning and 107.9MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2573.67ms. Allocated memory is still 167.8MB. Free memory was 107.4MB in the beginning and 107.6MB in the end (delta: -166.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 52.80ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 102.2MB in the end (delta: 5.3MB). 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 21, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 191 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 138 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 180 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 53 mSDtfsCounter, 180 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 501 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=4, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 501 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 730 ConstructedInterpolants, 0 QuantifiedInterpolants, 1113 SizeOfPredicates, 0 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 3909/4086 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 2 specifications checked. All of them hold - InvariantResult [Line: 16]: Location Invariant Derived location invariant: ((0 <= x) && (x <= 40)) RESULT: Ultimate proved your program to be correct! [2025-02-06 13:43:21,638 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